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<h1 class="title">libp2p/crypto/minasn1</h1>
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<ul class="simple simple-toc" id="toc-list">
<li>
<a class="reference reference-toplevel" href="#6" id="56">Imports</a>
<ul class="simple simple-toc-section">
</ul>
</li>
<li>
<a class="reference reference-toplevel" href="#7" id="57">Types</a>
<ul class="simple simple-toc-section">
<li><a class="reference" href="#Asn1Buffer"
title="Asn1Buffer = object of RootObj
buffer*: seq[byte]
offset*: int
length*: int">Asn1Buffer</a></li>
<li><a class="reference" href="#Asn1Class"
title="Asn1Class {.pure.} = enum
Universal = 0, Application = 1, ContextSpecific = 2, Private = 3">Asn1Class</a></li>
<li><a class="reference" href="#Asn1Composite"
title="Asn1Composite = object of Asn1Buffer
tag*: Asn1Tag
idx*: int">Asn1Composite</a></li>
<li><a class="reference" href="#Asn1Error"
title="Asn1Error {.pure.} = enum
Overflow, Incomplete, Indefinite, Incorrect, NoSupport, Overrun">Asn1Error</a></li>
<li><a class="reference" href="#Asn1Field"
title="Asn1Field = object
klass*: Asn1Class
index*: int
offset*: int
length*: int
buffer*: seq[byte]
case kind*: Asn1Tag
of Asn1Tag.Boolean:
vbool*: bool
of Asn1Tag.Integer:
vint*: uint64
of Asn1Tag.BitString:
ubits*: int
else:
nil">Asn1Field</a></li>
<li><a class="reference" href="#Asn1Result"
title="Asn1Result[T] = Result[T, Asn1Error]">Asn1Result</a></li>
<li><a class="reference" href="#Asn1Tag"
title="Asn1Tag {.pure.} = enum
NoSupport, Boolean, Integer, BitString, OctetString, Null, Oid, Sequence,
Context">Asn1Tag</a></li>
</ul>
</li>
<li>
<a class="reference reference-toplevel" href="#10" id="60">Consts</a>
<ul class="simple simple-toc-section">
<li><a class="reference" href="#Asn1False"
title="Asn1False = [0x01'u8, 0x01'u8, 0x00'u8]">Asn1False</a></li>
<li><a class="reference" href="#Asn1Null"
title="Asn1Null = [0x05'u8, 0x00'u8]">Asn1Null</a></li>
<li><a class="reference" href="#Asn1OidEcPublicKey"
title="Asn1OidEcPublicKey = [0x2A'u8, 0x86'u8, 0x48'u8, 0xCE'u8, 0x3D'u8, 0x02'u8,
0x01'u8]">Asn1OidEcPublicKey</a></li>
<li><a class="reference" href="#Asn1OidRsaEncryption"
title="Asn1OidRsaEncryption = [0x2A'u8, 0x86'u8, 0x48'u8, 0x86'u8, 0xF7'u8, 0x0D'u8,
0x01'u8, 0x01'u8, 0x01'u8]">Asn1OidRsaEncryption</a></li>
<li><a class="reference" href="#Asn1OidSecp256k1"
title="Asn1OidSecp256k1 = [0x2B'u8, 0x81'u8, 0x04'u8, 0x00'u8, 0x0A'u8]">Asn1OidSecp256k1</a></li>
<li><a class="reference" href="#Asn1OidSecp256r1"
title="Asn1OidSecp256r1 = [0x2A'u8, 0x86'u8, 0x48'u8, 0xCE'u8, 0x3D'u8, 0x03'u8,
0x01'u8, 0x07'u8]">Asn1OidSecp256r1</a></li>
<li><a class="reference" href="#Asn1OidSecp384r1"
title="Asn1OidSecp384r1 = [0x2B'u8, 0x81'u8, 0x04'u8, 0x00'u8, 0x22'u8]">Asn1OidSecp384r1</a></li>
<li><a class="reference" href="#Asn1OidSecp521r1"
title="Asn1OidSecp521r1 = [0x2B'u8, 0x81'u8, 0x04'u8, 0x00'u8, 0x23'u8]">Asn1OidSecp521r1</a></li>
<li><a class="reference" href="#Asn1True"
title="Asn1True = [0x01'u8, 0x01'u8, 0xFF'u8]">Asn1True</a></li>
</ul>
</li>
<li>
<a class="reference reference-toplevel" href="#12" id="62">Procs</a>
<ul class="simple simple-toc-section">
<ul class="simple nested-toc-section">$
<li><a class="reference" href="#%24%2CAsn1Buffer"
title="`$`(buffer: Asn1Buffer): string">`$`(buffer: Asn1Buffer): string</a></li>
<li><a class="reference" href="#%24%2CAsn1Field"
title="`$`(field: Asn1Field): string">`$`(field: Asn1Field): string</a></li>
</ul>
<ul class="simple nested-toc-section">==
<li><a class="reference" href="#%3D%3D%2CAsn1Field%2CopenArray%5Bbyte%5D"
title="`==`(field: Asn1Field; data: openArray[byte]): bool">`==`(field: Asn1Field; data: openArray[byte]): bool</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeBitString
<li><a class="reference" href="#asn1EncodeBitString%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D%2Cint"
title="asn1EncodeBitString(dest: var openArray[byte]; value: openArray[byte]; bits = 0): int">asn1EncodeBitString(dest: var openArray[byte]; value: openArray[byte]; bits = 0): int</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeBoolean
<li><a class="reference" href="#asn1EncodeBoolean%2CopenArray%5Bbyte%5D%2Cbool"
title="asn1EncodeBoolean(dest: var openArray[byte]; value: bool): int">asn1EncodeBoolean(dest: var openArray[byte]; value: bool): int</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeComposite
<li><a class="reference" href="#asn1EncodeComposite%2CopenArray%5Bbyte%5D%2CAsn1Composite"
title="asn1EncodeComposite(dest: var openArray[byte]; value: Asn1Composite): int">asn1EncodeComposite(dest: var openArray[byte]; value: Asn1Composite): int</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeContextTag
<li><a class="reference" href="#asn1EncodeContextTag%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D%2Cint"
title="asn1EncodeContextTag(dest: var openArray[byte]; value: openArray[byte]; tag: int): int">asn1EncodeContextTag(dest: var openArray[byte]; value: openArray[byte]; tag: int): int</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeInteger
<li><a class="reference" href="#asn1EncodeInteger%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D"
title="asn1EncodeInteger(dest: var openArray[byte]; value: openArray[byte]): int">asn1EncodeInteger(dest: var openArray[byte]; value: openArray[byte]): int</a></li>
<li><a class="reference" href="#asn1EncodeInteger%2CopenArray%5Bbyte%5D%2CT"
title="asn1EncodeInteger[T: SomeUnsignedInt](dest: var openArray[byte]; value: T): int">asn1EncodeInteger[T: SomeUnsignedInt](dest: var openArray[byte]; value: T): int</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeLength
<li><a class="reference" href="#asn1EncodeLength%2CopenArray%5Bbyte%5D%2Cuint64"
title="asn1EncodeLength(dest: var openArray[byte]; length: uint64): int">asn1EncodeLength(dest: var openArray[byte]; length: uint64): int</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeNull
<li><a class="reference" href="#asn1EncodeNull%2CopenArray%5Bbyte%5D"
title="asn1EncodeNull(dest: var openArray[byte]): int">asn1EncodeNull(dest: var openArray[byte]): int</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeOctetString
<li><a class="reference" href="#asn1EncodeOctetString%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D"
title="asn1EncodeOctetString(dest: var openArray[byte]; value: openArray[byte]): int">asn1EncodeOctetString(dest: var openArray[byte]; value: openArray[byte]): int</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeOid
<li><a class="reference" href="#asn1EncodeOid%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D"
title="asn1EncodeOid(dest: var openArray[byte]; value: openArray[byte]): int">asn1EncodeOid(dest: var openArray[byte]; value: openArray[byte]): int</a></li>
</ul>
<ul class="simple nested-toc-section">asn1EncodeSequence
<li><a class="reference" href="#asn1EncodeSequence%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D"
title="asn1EncodeSequence(dest: var openArray[byte]; value: openArray[byte]): int">asn1EncodeSequence(dest: var openArray[byte]; value: openArray[byte]): int</a></li>
</ul>
<ul class="simple nested-toc-section">code
<li><a class="reference" href="#code%2CAsn1Tag"
title="code(tag: Asn1Tag): byte">code(tag: Asn1Tag): byte</a></li>
</ul>
<ul class="simple nested-toc-section">extend
<li><a class="reference" href="#extend%2CT%2Cint"
title="extend[T: Asn1Buffer | Asn1Composite](abc: var T; length: int)">extend[T: Asn1Buffer | Asn1Composite](abc: var T; length: int)</a></li>
</ul>
<ul class="simple nested-toc-section">finish
<li><a class="reference" href="#finish%2CT"
title="finish[T: Asn1Buffer | Asn1Composite](abc: var T)">finish[T: Asn1Buffer | Asn1Composite](abc: var T)</a></li>
</ul>
<ul class="simple nested-toc-section">getBuffer
<li><a class="reference" href="#getBuffer%2CAsn1Field"
title="getBuffer(field: Asn1Field): Asn1Buffer">getBuffer(field: Asn1Field): Asn1Buffer</a></li>
</ul>
<ul class="simple nested-toc-section">init
<li><a class="reference" href="#init%2Ctypedesc%5BAsn1Buffer%5D"
title="init(t: typedesc[Asn1Buffer]): Asn1Buffer">init(t: typedesc[Asn1Buffer]): Asn1Buffer</a></li>
<li><a class="reference" href="#init%2Ctypedesc%5BAsn1Buffer%5D%2CopenArray%5Bbyte%5D"
title="init(t: typedesc[Asn1Buffer]; data: openArray[byte]): Asn1Buffer">init(t: typedesc[Asn1Buffer]; data: openArray[byte]): Asn1Buffer</a></li>
<li><a class="reference" href="#init%2Ctypedesc%5BAsn1Buffer%5D%2Cstring"
title="init(t: typedesc[Asn1Buffer]; data: string): Asn1Buffer">init(t: typedesc[Asn1Buffer]; data: string): Asn1Buffer</a></li>
<li><a class="reference" href="#init%2Ctypedesc%5BAsn1Composite%5D%2Cint"
title="init(t: typedesc[Asn1Composite]; idx: int): Asn1Composite">init(t: typedesc[Asn1Composite]; idx: int): Asn1Composite</a></li>
<li><a class="reference" href="#init%2Ctypedesc%5BAsn1Composite%5D%2CAsn1Tag"
title="init(t: typedesc[Asn1Composite]; tag: Asn1Tag): Asn1Composite">init(t: typedesc[Asn1Composite]; tag: Asn1Tag): Asn1Composite</a></li>
</ul>
<ul class="simple nested-toc-section">len
<li><a class="reference" href="#len%2CAsn1Field"
title="len(field: Asn1Field): int">len(field: Asn1Field): int</a></li>
<li><a class="reference" href="#len%2CT"
title="len[T: Asn1Buffer | Asn1Composite](abc: T): int">len[T: Asn1Buffer | Asn1Composite](abc: T): int</a></li>
</ul>
<ul class="simple nested-toc-section">read
<li><a class="reference" href="#read%2CAsn1Buffer"
title="read(ab: var Asn1Buffer): Asn1Result[Asn1Field]">read(ab: var Asn1Buffer): Asn1Result[Asn1Field]</a></li>
</ul>
<ul class="simple nested-toc-section">write
<li><a class="reference" href="#write%2CT%2CAsn1Tag"
title="write[T: Asn1Buffer | Asn1Composite](abc: var T; tag: Asn1Tag)">write[T: Asn1Buffer | Asn1Composite](abc: var T; tag: Asn1Tag)</a></li>
<li><a class="reference" href="#write%2CT%2CAsn1Tag%2CopenArray%5Bbyte%5D%2Cint"
title="write[T: Asn1Buffer | Asn1Composite](abc: var T; tag: Asn1Tag;
value: openArray[byte]; bits = 0)">write[T: Asn1Buffer | Asn1Composite](abc: var T; tag: Asn1Tag;
value: openArray[byte]; bits = 0)</a></li>
<li><a class="reference" href="#write%2CT%2CAsn1Composite"
title="write[T: Asn1Buffer | Asn1Composite](abc: var T; value: Asn1Composite)">write[T: Asn1Buffer | Asn1Composite](abc: var T; value: Asn1Composite)</a></li>
<li><a class="reference" href="#write%2CT%2Cbool"
title="write[T: Asn1Buffer | Asn1Composite](abc: var T; value: bool)">write[T: Asn1Buffer | Asn1Composite](abc: var T; value: bool)</a></li>
<li><a class="reference" href="#write%2CT%2Cuint64"
title="write[T: Asn1Buffer | Asn1Composite](abc: var T; value: uint64)">write[T: Asn1Buffer | Asn1Composite](abc: var T; value: uint64)</a></li>
</ul>
</ul>
</li>
<li>
<a class="reference reference-toplevel" href="#18" id="68">Templates</a>
<ul class="simple simple-toc-section">
<ul class="simple nested-toc-section">getPtr
<li><a class="reference" href="#getPtr.t%2Cuntyped"
title="getPtr(field: untyped): pointer">getPtr(field: untyped): pointer</a></li>
</ul>
<ul class="simple nested-toc-section">isEmpty
<li><a class="reference" href="#isEmpty.t%2CAsn1Buffer"
title="isEmpty(ab: Asn1Buffer): bool">isEmpty(ab: Asn1Buffer): bool</a></li>
</ul>
<ul class="simple nested-toc-section">isEnough
<li><a class="reference" href="#isEnough.t%2CAsn1Buffer%2Cint64"
title="isEnough(ab: Asn1Buffer; length: int64): bool">isEnough(ab: Asn1Buffer; length: int64): bool</a></li>
</ul>
<ul class="simple nested-toc-section">toOpenArray
<li><a class="reference" href="#toOpenArray.t%2CAsn1Buffer"
title="toOpenArray(ab: Asn1Buffer): untyped">toOpenArray(ab: Asn1Buffer): untyped</a></li>
<li><a class="reference" href="#toOpenArray.t%2CAsn1Composite"
title="toOpenArray(ac: Asn1Composite): untyped">toOpenArray(ac: Asn1Composite): untyped</a></li>
<li><a class="reference" href="#toOpenArray.t%2CAsn1Field"
title="toOpenArray(af: Asn1Field): untyped">toOpenArray(af: Asn1Field): untyped</a></li>
</ul>
</ul>
</li>
</ul>
</div>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L1"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L1" class="link-seesrc" target="_blank" >Edit</a>
<div class="nine columns" id="content">
<div id="tocRoot"></div>
<p class="module-desc">This module implements minimal ASN.1 encoding/decoding primitives.</p>
<div class="section" id="6">
<h1><a class="toc-backref" href="#6">Imports</a></h1>
<dl class="item">
<a class="reference external" href="../utility.html">../utility</a>
</dl></div>
<div class="section" id="7">
<h1><a class="toc-backref" href="#7">Types</a></h1>
<dl class="item">
<div id="Asn1Buffer" class="tohide">
<dt><pre><a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> <span class="Other">=</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <span class="Identifier">RootObj</span>
<span class="Identifier">buffer</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span>
<span class="Identifier">offset</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
<span class="Identifier">length</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
</pre></dt>
<dd>
ASN.1's message representation object
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L49"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L49" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1Class" class="tohide">
<dt><pre><a href="minasn1.html#Asn1Class"><span class="Identifier">Asn1Class</span></a> {.<span class="Identifier">pure</span>.} <span class="Other">=</span> <span class="Keyword">enum</span>
<span class="Identifier">Universal</span> <span class="Other">=</span> <span class="DecNumber">0</span><span class="Other">,</span> <span class="Identifier">Application</span> <span class="Other">=</span> <span class="DecNumber">1</span><span class="Other">,</span> <span class="Identifier">ContextSpecific</span> <span class="Other">=</span> <span class="DecNumber">2</span><span class="Other">,</span> <span class="Identifier">Private</span> <span class="Other">=</span> <span class="DecNumber">3</span></pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L31"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L31" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1Composite" class="tohide">
<dt><pre><a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a> <span class="Other">=</span> <span class="Keyword">object</span> <span class="Keyword">of</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a>
<span class="Identifier">tag</span><span class="Operator">*</span><span class="Other">:</span> <a href="minasn1.html#Asn1Tag"><span class="Identifier">Asn1Tag</span></a>
<span class="Identifier">idx</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
</pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L71"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L71" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1Error" class="tohide">
<dt><pre><a href="minasn1.html#Asn1Error"><span class="Identifier">Asn1Error</span></a> {.<span class="Identifier">pure</span>.} <span class="Other">=</span> <span class="Keyword">enum</span>
<span class="Identifier">Overflow</span><span class="Other">,</span> <span class="Identifier">Incomplete</span><span class="Other">,</span> <span class="Identifier">Indefinite</span><span class="Other">,</span> <span class="Identifier">Incorrect</span><span class="Other">,</span> <span class="Identifier">NoSupport</span><span class="Other">,</span> <span class="Identifier">Overrun</span></pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L21"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L21" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1Field" class="tohide">
<dt><pre><a href="minasn1.html#Asn1Field"><span class="Identifier">Asn1Field</span></a> <span class="Other">=</span> <span class="Keyword">object</span>
<span class="Identifier">klass</span><span class="Operator">*</span><span class="Other">:</span> <a href="minasn1.html#Asn1Class"><span class="Identifier">Asn1Class</span></a>
<span class="Identifier">index</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
<span class="Identifier">offset</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
<span class="Identifier">length</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
<span class="Identifier">buffer</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">seq</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span>
<span class="Keyword">case</span> <span class="Identifier">kind</span><span class="Operator">*</span><span class="Other">:</span> <a href="minasn1.html#Asn1Tag"><span class="Identifier">Asn1Tag</span></a>
<span class="Keyword">of</span> <span class="Identifier">Asn1Tag</span><span class="Other">.</span><span class="Identifier">Boolean</span><span class="Other">:</span>
<span class="Identifier">vbool</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">bool</span>
<span class="Keyword">of</span> <span class="Identifier">Asn1Tag</span><span class="Other">.</span><span class="Identifier">Integer</span><span class="Other">:</span>
<span class="Identifier">vint</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">uint64</span>
<span class="Keyword">of</span> <span class="Identifier">Asn1Tag</span><span class="Other">.</span><span class="Identifier">BitString</span><span class="Other">:</span>
<span class="Identifier">ubits</span><span class="Operator">*</span><span class="Other">:</span> <span class="Identifier">int</span>
<span class="Keyword">else</span><span class="Other">:</span>
<span class="Keyword">nil</span>
</pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L55"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L55" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1Result" class="tohide">
<dt><pre><a href="minasn1.html#Asn1Result"><span class="Identifier">Asn1Result</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">]</span> <span class="Other">=</span> <span class="Identifier">Result</span><span class="Other">[</span><span class="Identifier">T</span><span class="Other">,</span> <a href="minasn1.html#Asn1Error"><span class="Identifier">Asn1Error</span></a><span class="Other">]</span></pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L29"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L29" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1Tag" class="tohide">
<dt><pre><a href="minasn1.html#Asn1Tag"><span class="Identifier">Asn1Tag</span></a> {.<span class="Identifier">pure</span>.} <span class="Other">=</span> <span class="Keyword">enum</span>
<span class="Identifier">NoSupport</span><span class="Other">,</span> <span class="Identifier">Boolean</span><span class="Other">,</span> <span class="Identifier">Integer</span><span class="Other">,</span> <span class="Identifier">BitString</span><span class="Other">,</span> <span class="Identifier">OctetString</span><span class="Other">,</span> <span class="Identifier">Null</span><span class="Other">,</span> <span class="Identifier">Oid</span><span class="Other">,</span> <span class="Identifier">Sequence</span><span class="Other">,</span>
<span class="Identifier">Context</span></pre></dt>
<dd>
Protobuf's field types enum
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L37"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L37" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
</dl></div>
<div class="section" id="10">
<h1><a class="toc-backref" href="#10">Consts</a></h1>
<dl class="item">
<div id="Asn1False" class="tohide">
<dt><pre><a href="minasn1.html#Asn1False"><span class="Identifier">Asn1False</span></a> <span class="Other">=</span> <span class="Other">[</span><span class="DecNumber">0x01'u8</span><span class="Other">,</span> <span class="DecNumber">0x01'u8</span><span class="Other">,</span> <span class="DecNumber">0x00'u8</span><span class="Other">]</span></pre></dt>
<dd>
Encoded boolean <tt class="docutils literal"><span class="pre">FALSE</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L103"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L103" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1Null" class="tohide">
<dt><pre><a href="minasn1.html#Asn1Null"><span class="Identifier">Asn1Null</span></a> <span class="Other">=</span> <span class="Other">[</span><span class="DecNumber">0x05'u8</span><span class="Other">,</span> <span class="DecNumber">0x00'u8</span><span class="Other">]</span></pre></dt>
<dd>
Encoded <tt class="docutils literal"><span class="pre">NULL</span></tt> value.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L105"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L105" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1OidEcPublicKey" class="tohide">
<dt><pre><a href="minasn1.html#Asn1OidEcPublicKey"><span class="Identifier">Asn1OidEcPublicKey</span></a> <span class="Other">=</span> <span class="Other">[</span><span class="DecNumber">0x2A'u8</span><span class="Other">,</span> <span class="DecNumber">0x86'u8</span><span class="Other">,</span> <span class="DecNumber">0x48'u8</span><span class="Other">,</span> <span class="DecNumber">0xCE'u8</span><span class="Other">,</span> <span class="DecNumber">0x3D'u8</span><span class="Other">,</span> <span class="DecNumber">0x02'u8</span><span class="Other">,</span>
<span class="DecNumber">0x01'u8</span><span class="Other">]</span></pre></dt>
<dd>
Encoded OID for Elliptic Curve Public Key (1.2.840.10045.2.1)
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L92"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L92" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1OidRsaEncryption" class="tohide">
<dt><pre><a href="minasn1.html#Asn1OidRsaEncryption"><span class="Identifier">Asn1OidRsaEncryption</span></a> <span class="Other">=</span> <span class="Other">[</span><span class="DecNumber">0x2A'u8</span><span class="Other">,</span> <span class="DecNumber">0x86'u8</span><span class="Other">,</span> <span class="DecNumber">0x48'u8</span><span class="Other">,</span> <span class="DecNumber">0x86'u8</span><span class="Other">,</span> <span class="DecNumber">0xF7'u8</span><span class="Other">,</span> <span class="DecNumber">0x0D'u8</span><span class="Other">,</span>
<span class="DecNumber">0x01'u8</span><span class="Other">,</span> <span class="DecNumber">0x01'u8</span><span class="Other">,</span> <span class="DecNumber">0x01'u8</span><span class="Other">]</span></pre></dt>
<dd>
Encoded OID for RSA Encryption (1.2.840.113549.1.1.1)
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L96"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L96" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1OidSecp256k1" class="tohide">
<dt><pre><a href="minasn1.html#Asn1OidSecp256k1"><span class="Identifier">Asn1OidSecp256k1</span></a> <span class="Other">=</span> <span class="Other">[</span><span class="DecNumber">0x2B'u8</span><span class="Other">,</span> <span class="DecNumber">0x81'u8</span><span class="Other">,</span> <span class="DecNumber">0x04'u8</span><span class="Other">,</span> <span class="DecNumber">0x00'u8</span><span class="Other">,</span> <span class="DecNumber">0x0A'u8</span><span class="Other">]</span></pre></dt>
<dd>
Encoded OID for <tt class="docutils literal"><span class="pre"><span class="Identifier">secp256k1</span></span></tt> curve (1.3.132.0.10)
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L88"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L88" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1OidSecp256r1" class="tohide">
<dt><pre><a href="minasn1.html#Asn1OidSecp256r1"><span class="Identifier">Asn1OidSecp256r1</span></a> <span class="Other">=</span> <span class="Other">[</span><span class="DecNumber">0x2A'u8</span><span class="Other">,</span> <span class="DecNumber">0x86'u8</span><span class="Other">,</span> <span class="DecNumber">0x48'u8</span><span class="Other">,</span> <span class="DecNumber">0xCE'u8</span><span class="Other">,</span> <span class="DecNumber">0x3D'u8</span><span class="Other">,</span> <span class="DecNumber">0x03'u8</span><span class="Other">,</span>
<span class="DecNumber">0x01'u8</span><span class="Other">,</span> <span class="DecNumber">0x07'u8</span><span class="Other">]</span></pre></dt>
<dd>
Encoded OID for <tt class="docutils literal"><span class="pre"><span class="Identifier">secp256r1</span></span></tt> curve (1.2.840.10045.3.1.7)
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L76"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L76" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1OidSecp384r1" class="tohide">
<dt><pre><a href="minasn1.html#Asn1OidSecp384r1"><span class="Identifier">Asn1OidSecp384r1</span></a> <span class="Other">=</span> <span class="Other">[</span><span class="DecNumber">0x2B'u8</span><span class="Other">,</span> <span class="DecNumber">0x81'u8</span><span class="Other">,</span> <span class="DecNumber">0x04'u8</span><span class="Other">,</span> <span class="DecNumber">0x00'u8</span><span class="Other">,</span> <span class="DecNumber">0x22'u8</span><span class="Other">]</span></pre></dt>
<dd>
Encoded OID for <tt class="docutils literal"><span class="pre"><span class="Identifier">secp384r1</span></span></tt> curve (1.3.132.0.34)
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L80"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L80" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1OidSecp521r1" class="tohide">
<dt><pre><a href="minasn1.html#Asn1OidSecp521r1"><span class="Identifier">Asn1OidSecp521r1</span></a> <span class="Other">=</span> <span class="Other">[</span><span class="DecNumber">0x2B'u8</span><span class="Other">,</span> <span class="DecNumber">0x81'u8</span><span class="Other">,</span> <span class="DecNumber">0x04'u8</span><span class="Other">,</span> <span class="DecNumber">0x00'u8</span><span class="Other">,</span> <span class="DecNumber">0x23'u8</span><span class="Other">]</span></pre></dt>
<dd>
Encoded OID for <tt class="docutils literal"><span class="pre"><span class="Identifier">secp521r1</span></span></tt> curve (1.3.132.0.35)
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L84"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L84" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="Asn1True" class="tohide">
<dt><pre><a href="minasn1.html#Asn1True"><span class="Identifier">Asn1True</span></a> <span class="Other">=</span> <span class="Other">[</span><span class="DecNumber">0x01'u8</span><span class="Other">,</span> <span class="DecNumber">0x01'u8</span><span class="Other">,</span> <span class="DecNumber">0xFF'u8</span><span class="Other">]</span></pre></dt>
<dd>
Encoded boolean <tt class="docutils literal"><span class="pre">TRUE</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L101"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L101" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
</dl></div>
<div class="section" id="12">
<h1><a class="toc-backref" href="#12">Procs</a></h1>
<dl class="item">
<div id="$,Asn1Buffer" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#%24%2CAsn1Buffer"><span class="Identifier">`$`</span></a><span class="Other">(</span><span class="Identifier">buffer</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Return string representation of <tt class="docutils literal"><span class="pre">buffer</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L703"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L703" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="$,Asn1Field" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#%24%2CAsn1Field"><span class="Identifier">`$`</span></a><span class="Other">(</span><span class="Identifier">field</span><span class="Other">:</span> <a href="minasn1.html#Asn1Field"><span class="Identifier">Asn1Field</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">string</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Return string representation of <tt class="docutils literal"><span class="pre">field</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L707"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L707" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="==,Asn1Field,openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#%3D%3D%2CAsn1Field%2CopenArray%5Bbyte%5D"><span class="Identifier">`==`</span></a><span class="Other">(</span><span class="Identifier">field</span><span class="Other">:</span> <a href="minasn1.html#Asn1Field"><span class="Identifier">Asn1Field</span></a><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Compares field <tt class="docutils literal"><span class="pre">field</span></tt> data with <tt class="docutils literal"><span class="pre">data</span></tt> and returns <tt class="docutils literal"><span class="pre">true</span></tt> if both buffers are equal.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L665"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L665" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeBitString,openArray[byte],openArray[byte],int" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeBitString%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D%2Cint"><span class="Identifier">asn1EncodeBitString</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span>
<span class="Identifier">bits</span> <span class="Other">=</span> <span class="DecNumber">0</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode array of bytes as ASN.1 DER <tt class="docutils literal"><span class="pre"><span class="Identifier">BIT</span> <span class="Identifier">STRING</span></span></tt> and return number of bytes (octets) used.</p>
<p><tt class="docutils literal"><span class="pre">bits</span></tt> number of unused bits in <tt class="docutils literal"><span class="pre">value</span></tt>. If <tt class="docutils literal"><span class="pre">bits == 0</span></tt>, all the bits from <tt class="docutils literal"><span class="pre">value</span></tt> will be used.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding will not be stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L286"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L286" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeBoolean,openArray[byte],bool" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeBoolean%2CopenArray%5Bbyte%5D%2Cbool"><span class="Identifier">asn1EncodeBoolean</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">bool</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode Nim's boolean as ASN.1 DER <tt class="docutils literal"><span class="pre"><span class="Identifier">BOOLEAN</span></span></tt> and return number of bytes (octets) used.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding will not be stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L242"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L242" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeComposite,openArray[byte],Asn1Composite" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeComposite%2CopenArray%5Bbyte%5D%2CAsn1Composite"><span class="Identifier">asn1EncodeComposite</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode composite value and return number of bytes (octets) used.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding will not be stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L381"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L381" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeContextTag,openArray[byte],openArray[byte],int" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeContextTag%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D%2Cint"><span class="Identifier">asn1EncodeContextTag</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span>
<span class="Identifier">tag</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode ASN.1 DER <tt class="docutils literal"><span class="pre"><span class="Identifier">CONTEXT</span> <span class="Identifier">SPECIFIC</span> <span class="Identifier">TAG</span></span></tt> <tt class="docutils literal"><span class="pre">tag</span></tt> for value <tt class="docutils literal"><span class="pre">value</span></tt> and return number of bytes (octets) used.</p>
<p>Note: Only values in [0, 15] range can be used as context tag <tt class="docutils literal"><span class="pre">tag</span></tt> values.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding will not be stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L398"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L398" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeInteger,openArray[byte],openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeInteger%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D"><span class="Identifier">asn1EncodeInteger</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode big-endian binary representation of integer as ASN.1 DER <tt class="docutils literal"><span class="pre"><span class="Identifier">INTEGER</span></span></tt> and return number of bytes (octets) used.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding WILL NOT BE stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L185"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L185" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeInteger,openArray[byte],T" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeInteger%2CopenArray%5Bbyte%5D%2CT"><span class="Identifier">asn1EncodeInteger</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <span class="Identifier">SomeUnsignedInt</span><span class="Other">]</span><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode Nim's unsigned integer as ASN.1 DER <tt class="docutils literal"><span class="pre"><span class="Identifier">INTEGER</span></span></tt> and return number of bytes (octets) used.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding will not be stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L232"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L232" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeLength,openArray[byte],uint64" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeLength%2CopenArray%5Bbyte%5D%2Cuint64"><span class="Identifier">asn1EncodeLength</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">length</span><span class="Other">:</span> <span class="Identifier">uint64</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode ASN.1 DER length part of TLV triple and return number of bytes (octets) used.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">length</span></tt> value, then result of encoding WILL NOT BE stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L158"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L158" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeNull,openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeNull%2CopenArray%5Bbyte%5D"><span class="Identifier">asn1EncodeNull</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode ASN.1 DER <tt class="docutils literal"><span class="pre"><span class="Identifier">NULL</span></span></tt> and return number of bytes (octets) used.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding will not be stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L256"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L256" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeOctetString,openArray[byte],openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeOctetString%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D"><span class="Identifier">asn1EncodeOctetString</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode array of bytes as ASN.1 DER <tt class="docutils literal"><span class="pre"><span class="Identifier">OCTET</span> <span class="Identifier">STRING</span></span></tt> and return number of bytes (octets) used.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding will not be stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L268"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L268" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeOid,openArray[byte],openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeOid%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D"><span class="Identifier">asn1EncodeOid</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode array of bytes <tt class="docutils literal"><span class="pre">value</span></tt> as ASN.1 DER <tt class="docutils literal"><span class="pre"><span class="Keyword">OBJECT</span> <span class="Identifier">IDENTIFIER</span></span></tt> and return number of bytes (octets) used.</p>
<p>This procedure is useful to encode constant predefined identifiers such as <tt class="docutils literal"><span class="pre">asn1OidSecp256r1</span></tt>, <tt class="docutils literal"><span class="pre">asn1OidRsaEncryption</span></tt>.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding will not be stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L345"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L345" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="asn1EncodeSequence,openArray[byte],openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#asn1EncodeSequence%2CopenArray%5Bbyte%5D%2CopenArray%5Bbyte%5D"><span class="Identifier">asn1EncodeSequence</span></a><span class="Other">(</span><span class="Identifier">dest</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Encode <tt class="docutils literal"><span class="pre">value</span></tt> as ASN.1 DER <tt class="docutils literal"><span class="pre"><span class="Identifier">SEQUENCE</span></span></tt> and return number of bytes (octets) used.</p>
<p>If length of <tt class="docutils literal"><span class="pre">dest</span></tt> is less then number of required bytes to encode <tt class="docutils literal"><span class="pre">value</span></tt>, then result of encoding will not be stored in <tt class="docutils literal"><span class="pre">dest</span></tt> but number of bytes (octets) required will be returned.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L364"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L364" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="code,Asn1Tag" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#code%2CAsn1Tag"><span class="Identifier">code</span></a><span class="Other">(</span><span class="Identifier">tag</span><span class="Other">:</span> <a href="minasn1.html#Asn1Tag"><span class="Identifier">Asn1Tag</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">byte</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Converts Nim <tt class="docutils literal"><span class="pre">tag</span></tt> enum to ASN.1 tag code.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L136"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L136" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="extend,T,int" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#extend%2CT%2Cint"><span class="Identifier">extend</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> <span class="Operator">|</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">(</span><span class="Identifier">abc</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">;</span> <span class="Identifier">length</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span> {.<span class="Identifier">inline</span><span class="Other">,</span>
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Extend buffer or composite's internal buffer by <tt class="docutils literal"><span class="pre">length</span></tt> octets.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L132"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L132" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="finish,T" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#finish%2CT"><span class="Identifier">finish</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> <span class="Operator">|</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">(</span><span class="Identifier">abc</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">)</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Finishes buffer or composite and prepares it for writing.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L844"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L844" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="getBuffer,Asn1Field" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#getBuffer%2CAsn1Field"><span class="Identifier">getBuffer</span></a><span class="Other">(</span><span class="Identifier">field</span><span class="Other">:</span> <a href="minasn1.html#Asn1Field"><span class="Identifier">Asn1Field</span></a><span class="Other">)</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Return <tt class="docutils literal"><span class="pre">field</span></tt> as Asn1Buffer to enter composite types.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L661"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L661" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="init,typedesc[Asn1Buffer]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BAsn1Buffer%5D"><span class="Identifier">init</span></a><span class="Other">(</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Initialize empty <tt class="docutils literal"><span class="pre">Asn1Buffer</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L691"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L691" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="init,typedesc[Asn1Buffer],openArray[byte]" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BAsn1Buffer%5D%2CopenArray%5Bbyte%5D"><span class="Identifier">init</span></a><span class="Other">(</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">)</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Initialize <tt class="docutils literal"><span class="pre">Asn1Buffer</span></tt> from array of bytes <tt class="docutils literal"><span class="pre">data</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L683"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L683" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="init,typedesc[Asn1Buffer],string" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BAsn1Buffer%5D%2Cstring"><span class="Identifier">init</span></a><span class="Other">(</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">data</span><span class="Other">:</span> <span class="Identifier">string</span><span class="Other">)</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Initialize <tt class="docutils literal"><span class="pre">Asn1Buffer</span></tt> from hexadecimal string <tt class="docutils literal"><span class="pre">data</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L687"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L687" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="init,typedesc[Asn1Composite],int" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BAsn1Composite%5D%2Cint"><span class="Identifier">init</span></a><span class="Other">(</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">idx</span><span class="Other">:</span> <span class="Identifier">int</span><span class="Other">)</span><span class="Other">:</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Initialize <tt class="docutils literal"><span class="pre">Asn1Composite</span></tt> with tag context-specific id <tt class="docutils literal"><span class="pre">id</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L699"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L699" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="init,typedesc[Asn1Composite],Asn1Tag" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#init%2Ctypedesc%5BAsn1Composite%5D%2CAsn1Tag"><span class="Identifier">init</span></a><span class="Other">(</span><span class="Identifier">t</span><span class="Other">:</span> <span class="Identifier">typedesc</span><span class="Other">[</span><a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">tag</span><span class="Other">:</span> <a href="minasn1.html#Asn1Tag"><span class="Identifier">Asn1Tag</span></a><span class="Other">)</span><span class="Other">:</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Initialize <tt class="docutils literal"><span class="pre">Asn1Composite</span></tt> with tag <tt class="docutils literal"><span class="pre">tag</span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L695"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L695" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="len,Asn1Field" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#len%2CAsn1Field"><span class="Identifier">len</span></a><span class="Other">(</span><span class="Identifier">field</span><span class="Other">:</span> <a href="minasn1.html#Asn1Field"><span class="Identifier">Asn1Field</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L126"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L126" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="len,T" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#len%2CT"><span class="Identifier">len</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> <span class="Operator">|</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">(</span><span class="Identifier">abc</span><span class="Other">:</span> <span class="Identifier">T</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">int</span> {.<span class="Identifier">inline</span><span class="Other">,</span> <span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L123"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L123" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="read,Asn1Buffer" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#read%2CAsn1Buffer"><span class="Identifier">read</span></a><span class="Other">(</span><span class="Identifier">ab</span><span class="Other">:</span> <span class="Keyword">var</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a><span class="Other">)</span><span class="Other">:</span> <a href="minasn1.html#Asn1Result"><span class="Identifier">Asn1Result</span></a><span class="Other">[</span><a href="minasn1.html#Asn1Field"><span class="Identifier">Asn1Field</span></a><span class="Other">]</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span><span class="Other">,</span> <span class="Identifier">tags</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Decode value part of ASN.1 TLV triplet.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L462"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L462" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="write,T,Asn1Tag" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#write%2CT%2CAsn1Tag"><span class="Identifier">write</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> <span class="Operator">|</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">(</span><span class="Identifier">abc</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">;</span> <span class="Identifier">tag</span><span class="Other">:</span> <a href="minasn1.html#Asn1Tag"><span class="Identifier">Asn1Tag</span></a><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Write empty value to buffer or composite with <tt class="docutils literal"><span class="pre">tag</span></tt>.</p>
<p>This procedure must be used to write <tt class="docutils literal"><span class="pre"><span class="Identifier">NULL</span></span></tt>, <tt class="docutils literal"><span class="pre"><span class="DecNumber">0</span></span></tt> or empty <tt class="docutils literal"><span class="pre"><span class="Identifier">BIT</span> <span class="Identifier">STRING</span></span></tt>, <tt class="docutils literal"><span class="pre"><span class="Identifier">OCTET</span> <span class="Identifier">STRING</span></span></tt> types.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L755"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L755" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="write,T,Asn1Tag,openArray[byte],int" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#write%2CT%2CAsn1Tag%2CopenArray%5Bbyte%5D%2Cint"><span class="Identifier">write</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> <span class="Operator">|</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">(</span><span class="Identifier">abc</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">;</span> <span class="Identifier">tag</span><span class="Other">:</span> <a href="minasn1.html#Asn1Tag"><span class="Identifier">Asn1Tag</span></a><span class="Other">;</span>
<span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">openArray</span><span class="Other">[</span><span class="Identifier">byte</span><span class="Other">]</span><span class="Other">;</span> <span class="Identifier">bits</span> <span class="Other">=</span> <span class="DecNumber">0</span><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
<p>Write array <tt class="docutils literal"><span class="pre">value</span></tt> using <tt class="docutils literal"><span class="pre">tag</span></tt>.</p>
<p>This procedure is used to write ASN.1 <tt class="docutils literal"><span class="pre"><span class="Identifier">INTEGER</span></span></tt>, <tt class="docutils literal"><span class="pre"><span class="Identifier">OCTET</span> <span class="Identifier">STRING</span></span></tt>, <tt class="docutils literal"><span class="pre"><span class="Identifier">BIT</span> <span class="Identifier">STRING</span></span></tt> or <tt class="docutils literal"><span class="pre"><span class="Keyword">OBJECT</span> <span class="Identifier">IDENTIFIER</span></span></tt>.</p>
<p>For <tt class="docutils literal"><span class="pre"><span class="Identifier">BIT</span> <span class="Identifier">STRING</span></span></tt> you can use <tt class="docutils literal"><span class="pre">bits</span></tt> argument to specify number of used bits.</p>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L797"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L797" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="write,T,Asn1Composite" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#write%2CT%2CAsn1Composite"><span class="Identifier">write</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> <span class="Operator">|</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">(</span><span class="Identifier">abc</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">)</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L827"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L827" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="write,T,bool" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#write%2CT%2Cbool"><span class="Identifier">write</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> <span class="Operator">|</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">(</span><span class="Identifier">abc</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">bool</span><span class="Other">)</span> {.<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Write bool <tt class="docutils literal"><span class="pre">value</span></tt> to buffer or composite as ASN.1 <tt class="docutils literal"><span class="pre"><span class="Identifier">BOOLEAN</span></span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L790"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L790" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="write,T,uint64" class="tohide">
<dt><pre><span class="Keyword">proc</span> <a href="#write%2CT%2Cuint64"><span class="Identifier">write</span></a><span class="Other">[</span><span class="Identifier">T</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a> <span class="Operator">|</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">]</span><span class="Other">(</span><span class="Identifier">abc</span><span class="Other">:</span> <span class="Keyword">var</span> <span class="Identifier">T</span><span class="Other">;</span> <span class="Identifier">value</span><span class="Other">:</span> <span class="Identifier">uint64</span><span class="Other">)</span> {.
<span><span class="Other pragmadots">...</span></span><span class="pragmawrap"><span class="Identifier">raises</span><span class="Other">:</span> <span class="Other">[</span><span class="Other">]</span></span>.}</pre></dt>
<dd>
Write uint64 <tt class="docutils literal"><span class="pre">value</span></tt> to buffer or composite as ASN.1 <tt class="docutils literal"><span class="pre"><span class="Identifier">INTEGER</span></span></tt>.
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L783"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L783" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
</dl></div>
<div class="section" id="18">
<h1><a class="toc-backref" href="#18">Templates</a></h1>
<dl class="item">
<div id="getPtr.t,untyped" class="tohide">
<dt><pre><span class="Keyword">template</span> <a href="#getPtr.t%2Cuntyped"><span class="Identifier">getPtr</span></a><span class="Other">(</span><span class="Identifier">field</span><span class="Other">:</span> <span class="Identifier">untyped</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">pointer</span></pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L129"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L129" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="isEmpty.t,Asn1Buffer" class="tohide">
<dt><pre><span class="Keyword">template</span> <a href="#isEmpty.t%2CAsn1Buffer"><span class="Identifier">isEmpty</span></a><span class="Other">(</span><span class="Identifier">ab</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span></pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L117"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L117" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="isEnough.t,Asn1Buffer,int64" class="tohide">
<dt><pre><span class="Keyword">template</span> <a href="#isEnough.t%2CAsn1Buffer%2Cint64"><span class="Identifier">isEnough</span></a><span class="Other">(</span><span class="Identifier">ab</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a><span class="Other">;</span> <span class="Identifier">length</span><span class="Other">:</span> <span class="Identifier">int64</span><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">bool</span></pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L120"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L120" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="toOpenArray.t,Asn1Buffer" class="tohide">
<dt><pre><span class="Keyword">template</span> <a href="#toOpenArray.t%2CAsn1Buffer"><span class="Identifier">toOpenArray</span></a><span class="Other">(</span><span class="Identifier">ab</span><span class="Other">:</span> <a href="minasn1.html#Asn1Buffer"><span class="Identifier">Asn1Buffer</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L108"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L108" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="toOpenArray.t,Asn1Composite" class="tohide">
<dt><pre><span class="Keyword">template</span> <a href="#toOpenArray.t%2CAsn1Composite"><span class="Identifier">toOpenArray</span></a><span class="Other">(</span><span class="Identifier">ac</span><span class="Other">:</span> <a href="minasn1.html#Asn1Composite"><span class="Identifier">Asn1Composite</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L111"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L111" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
<div id="toOpenArray.t,Asn1Field" class="tohide">
<dt><pre><span class="Keyword">template</span> <a href="#toOpenArray.t%2CAsn1Field"><span class="Identifier">toOpenArray</span></a><span class="Other">(</span><span class="Identifier">af</span><span class="Other">:</span> <a href="minasn1.html#Asn1Field"><span class="Identifier">Asn1Field</span></a><span class="Other">)</span><span class="Other">:</span> <span class="Identifier">untyped</span></pre></dt>
<dd>
&nbsp;&nbsp;<a
href="https://github.com/status-im/nim-libp2p/tree/ll-identify/libp2p/crypto/minasn1.nim#L114"
class="link-seesrc" target="_blank">Source</a>
&nbsp;&nbsp;<a href="https://github.com/status-im/nim-libp2p/edit/devel/libp2p/crypto/minasn1.nim#L114" class="link-seesrc" target="_blank" >Edit</a>
</dd>
</div>
</dl></div>
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<small style="color: var(--hint);">Made with Nim. Generated: 2023-11-21 19:51:31 UTC</small>
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