nim-libp2p/tests/testsigned_envelope.nim

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import unittest2
import stew/byteutils
import ../libp2p/[signed_envelope]
suite "Signed envelope":
test "Encode -> decode -> encode -> decode test":
let
rng = newRng()
privKey = PrivateKey.random(rng[]).tryGet()
envelope = Envelope.init(privKey, @[byte 12, 0], "payload".toBytes(), "domain").tryGet()
buffer = envelope.encode().tryGet()
decodedEnvelope = Envelope.decode(buffer, "domain").tryGet()
wrongDomain = Envelope.decode(buffer, "wdomain")
reencodedEnvelope = decodedEnvelope.encode().tryGet()
redecodedEnvelope = Envelope.decode(reencodedEnvelope, "domain").tryGet()
check:
decodedEnvelope == envelope
wrongDomain.error == EnvelopeInvalidSignature
reencodedEnvelope == buffer
redecodedEnvelope == envelope
test "Interop decode test":
# from https://github.com/libp2p/go-libp2p-core/blob/b18a4c9c5629870bde2cd85ab3b87a507600d411/record/envelope_test.go#L68
let inputData = "0a24080112206f1581709bb7b1ef030d210db18e3b0ba1c776fba65d8cdaad05415142d189f812102f6c69627032702f74657374646174611a0c68656c6c6f20776f726c64212a401178673b51dfa842aad17e465e25d646ad16628916b964c3fb10c711fee87872bdd4e4646f58c277cdff09704913d8be1aec6322de8d3d0bb852120374aece08".hexToSeqByte()
let decodedEnvelope = Envelope.decode(inputData, "libp2p-testing").tryGet()
check:
decodedEnvelope.payloadType == "/libp2p/testdata".toBytes()
decodedEnvelope.payload == "hello world!".toBytes()
test "Signature validation":
# same as above, but payload altered
let inputData = "0a24080112206f1581709bb7b1ef030d210db18e3b0ba1c776fba65d8cdaad05415142d189f812102f6c69627032702f74657374646174611a0c00006c6c6f20776f726c64212a401178673b51dfa842aad17e465e25d646ad16628916b964c3fb10c711fee87872bdd4e4646f58c277cdff09704913d8be1aec6322de8d3d0bb852120374aece08".hexToSeqByte()
check Envelope.decode(inputData, "libp2p-testing").error == EnvelopeInvalidSignature
# needs to be exported to work
type
DummyPayload* = object
awesome: byte
SignedDummy = SignedPayload[DummyPayload]
proc decode*(T: typedesc[DummyPayload], buffer: seq[byte]): Result[DummyPayload, cstring] =
ok(DummyPayload(awesome: buffer[0]))
proc encode*(pd: DummyPayload): seq[byte] =
@[pd.awesome]
proc checkValid*(pd: SignedDummy): Result[void, EnvelopeError] =
if pd.data.awesome == 12.byte: ok()
else: err(EnvelopeInvalidSignature)
proc payloadDomain*(T: typedesc[DummyPayload]): string = "dummy"
proc payloadType*(T: typedesc[DummyPayload]): seq[byte] = @[(byte) 0x00, (byte) 0x00]
suite "Signed payload":
test "Simple encode -> decode":
let
rng = newRng()
privKey = PrivateKey.random(rng[]).tryGet()
dummyPayload = DummyPayload(awesome: 12.byte)
signed = SignedDummy.init(privKey, dummyPayload).tryGet()
encoded = signed.encode().tryGet()
decoded = SignedDummy.decode(encoded).tryGet()
check:
dummyPayload.awesome == decoded.data.awesome
decoded.envelope.publicKey == privKey.getPublicKey().tryGet()
test "Invalid payload":
let
rng = newRng()
privKey = PrivateKey.random(rng[]).tryGet()
dummyPayload = DummyPayload(awesome: 30.byte)
signed = SignedDummy.init(privKey, dummyPayload).tryGet()
encoded = signed.encode().tryGet()
check SignedDummy.decode(encoded).error == EnvelopeInvalidSignature
test "Invalid payload type":
let
rng = newRng()
privKey = PrivateKey.random(rng[]).tryGet()
dummyPayload = DummyPayload(awesome: 30.byte)
signed = Envelope.init(privKey, @[55.byte], dummyPayload.encode(), DummyPayload.payloadDomain).tryGet()
encoded = signed.encode().tryGet()
check SignedDummy.decode(encoded).error == EnvelopeWrongType