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FFI declarations for libsecp256k1.h

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Zahary Karadjov 2018-01-05 03:02:25 +02:00
parent 9d0da54e7d
commit 097b3c2434
2 changed files with 204 additions and 0 deletions
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{.deadCodeElim: on.}
when defined(windows):
const Lib = "secp256k1.dll"
elif defined(macosx):
const Lib = "libsecp256k1(|.0).dylib"
else:
const Lib = "libsecp256k1.so(|.0)"
when defined(static_secp256k1):
{.pragma: secp, importc, cdecl.}
else:
{.pragma: secp, dynlib: Lib, importc, cdecl.}
{.emit: """
typedef struct secp256k1_context_struct secp256k1_context;
typedef struct secp256k1_scratch_space_struct secp256k1_scratch_space;
""".}
type
secp256k1_pubkey* = object
data*: array[64, uint8]
secp256k1_ecdsa_signature* = object
data*: array[64, uint8]
secp256k1_nonce_function* = proc (nonce32: ptr cuchar; msg32: ptr cuchar;
key32: ptr cuchar; algo16: ptr cuchar; data: pointer;
attempt: cuint): cint
secp256k1_context* = object {.importc: "secp256k1_context".}
secp256k1_scratch_space* = object {.importc: "secp256k1_scratch_space".}
const
SECP256K1_FLAGS_TYPE_MASK* = ((1 shl 8) - 1)
SECP256K1_FLAGS_TYPE_CONTEXT* = (1 shl 0)
SECP256K1_FLAGS_TYPE_COMPRESSION* = (1 shl 1)
## * The higher bits contain the actual data. Do not use directly.
SECP256K1_FLAGS_BIT_CONTEXT_VERIFY* = (1 shl 8)
SECP256K1_FLAGS_BIT_CONTEXT_SIGN* = (1 shl 9)
SECP256K1_FLAGS_BIT_COMPRESSION* = (1 shl 8)
## * Flags to pass to secp256k1_context_create.
SECP256K1_CONTEXT_VERIFY* = (
SECP256K1_FLAGS_TYPE_CONTEXT or SECP256K1_FLAGS_BIT_CONTEXT_VERIFY)
SECP256K1_CONTEXT_SIGN* = (
SECP256K1_FLAGS_TYPE_CONTEXT or SECP256K1_FLAGS_BIT_CONTEXT_SIGN)
SECP256K1_CONTEXT_NONE* = (SECP256K1_FLAGS_TYPE_CONTEXT)
## * Flag to pass to secp256k1_ec_pubkey_serialize and secp256k1_ec_privkey_export.
SECP256K1_EC_COMPRESSED* = (
SECP256K1_FLAGS_TYPE_COMPRESSION or SECP256K1_FLAGS_BIT_COMPRESSION)
SECP256K1_EC_UNCOMPRESSED* = (SECP256K1_FLAGS_TYPE_COMPRESSION)
## * Prefix byte used to tag various encoded curvepoints for specific purposes
SECP256K1_TAG_PUBKEY_EVEN* = 0x00000002
SECP256K1_TAG_PUBKEY_ODD* = 0x00000003
SECP256K1_TAG_PUBKEY_UNCOMPRESSED* = 0x00000004
SECP256K1_TAG_PUBKEY_HYBRID_EVEN* = 0x00000006
SECP256K1_TAG_PUBKEY_HYBRID_ODD* = 0x00000007
proc secp256k1_context_create*(
flags: cuint): ptr secp256k1_context {.secp.}
proc secp256k1_context_clone*(
ctx: ptr secp256k1_context): ptr secp256k1_context {.secp.}
proc secp256k1_context_destroy*(
ctx: ptr secp256k1_context) {.secp.}
proc secp256k1_context_set_illegal_callback*(
ctx: ptr secp256k1_context;
fun: proc (message: cstring; data: pointer);
data: pointer) {.secp.}
proc secp256k1_context_set_error_callback*(
ctx: ptr secp256k1_context;
fun: proc (message: cstring; data: pointer);
data: pointer) {.secp.}
proc secp256k1_scratch_space_create*(
ctx: ptr secp256k1_context;
init_size: csize;
max_size: csize): ptr secp256k1_scratch_space {.secp.}
proc secp256k1_scratch_space_destroy*(
scratch: ptr secp256k1_scratch_space) {.secp.}
proc secp256k1_ec_pubkey_parse*(
ctx: ptr secp256k1_context;
pubkey: ptr secp256k1_pubkey;
input: ptr cuchar;
inputlen: csize): cint {.secp.}
proc secp256k1_ec_pubkey_serialize*(
ctx: ptr secp256k1_context;
output: ptr cuchar;
outputlen: ptr csize;
pubkey: ptr secp256k1_pubkey;
flags: cuint): cint {.secp.}
proc secp256k1_ecdsa_signature_parse_compact*(
ctx: ptr secp256k1_context;
sig: ptr secp256k1_ecdsa_signature;
input64: ptr cuchar): cint {.secp.}
proc secp256k1_ecdsa_signature_parse_der*(
ctx: ptr secp256k1_context;
sig: ptr secp256k1_ecdsa_signature;
input: ptr cuchar;
inputlen: csize): cint {.secp.}
proc secp256k1_ecdsa_signature_serialize_der*(
ctx: ptr secp256k1_context;
output: ptr cuchar;
outputlen: ptr csize;
sig: ptr secp256k1_ecdsa_signature): cint {.secp.}
proc secp256k1_ecdsa_signature_serialize_compact*(
ctx: ptr secp256k1_context;
output64: ptr cuchar;
sig: ptr secp256k1_ecdsa_signature): cint {.secp.}
proc secp256k1_ecdsa_verify*(
ctx: ptr secp256k1_context;
sig: ptr secp256k1_ecdsa_signature;
msg32: ptr cuchar;
pubkey: ptr secp256k1_pubkey): cint {.secp.}
proc secp256k1_ecdsa_signature_normalize*(
ctx: ptr secp256k1_context;
sigout: ptr secp256k1_ecdsa_signature;
sigin: ptr secp256k1_ecdsa_signature): cint {.secp.}
proc secp256k1_ecdsa_sign*(
ctx: ptr secp256k1_context;
sig: ptr secp256k1_ecdsa_signature;
msg32: ptr cuchar;
seckey: ptr cuchar;
noncefp: secp256k1_nonce_function;
ndata: pointer): cint {.secp.}
proc secp256k1_ec_seckey_verify*(
ctx: ptr secp256k1_context;
seckey: ptr cuchar): cint {.secp.}
proc secp256k1_ec_pubkey_create*(
ctx: ptr secp256k1_context;
pubkey: ptr secp256k1_pubkey;
seckey: ptr cuchar): cint {.secp.}
proc secp256k1_ec_privkey_negate*(
ctx: ptr secp256k1_context;
seckey: ptr cuchar): cint {.secp.}
proc secp256k1_ec_pubkey_negate*(
ctx: ptr secp256k1_context;
pubkey: ptr secp256k1_pubkey): cint {.secp.}
proc secp256k1_ec_privkey_tweak_add*(
ctx: ptr secp256k1_context;
seckey: ptr cuchar;
tweak: ptr cuchar): cint {.secp.}
proc secp256k1_ec_pubkey_tweak_add*(
ctx: ptr secp256k1_context;
pubkey: ptr secp256k1_pubkey;
tweak: ptr cuchar): cint {.secp.}
proc secp256k1_ec_privkey_tweak_mul*(
ctx: ptr secp256k1_context;
seckey: ptr cuchar;
tweak: ptr cuchar): cint {.secp.}
proc secp256k1_ec_pubkey_tweak_mul*(
ctx: ptr secp256k1_context;
pubkey: ptr secp256k1_pubkey;
tweak: ptr cuchar): cint {.secp.}
proc secp256k1_context_randomize*(
ctx: ptr secp256k1_context;
seed32: ptr cuchar): cint {.secp.}
proc secp256k1_ec_pubkey_combine*(
ctx: ptr secp256k1_context;
output: ptr secp256k1_pubkey;
ins: ptr ptr secp256k1_pubkey;
n: csize): cint {.secp.}
var secp256k1_nonce_function_rfc6979*: secp256k1_nonce_function
var secp256k1_nonce_function_default*: secp256k1_nonce_function

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mode = ScriptMode.Verbose
packageName = "secp256k1"
version = "0.1.0"
author = "Zahary Karadjov"
description = "A wrapper for the libsecp256k1 C library"
license = "Apache2"
skipDirs = @["tests"]
requires "nim >= 0.17.0"