public async Task VerifyAsyncWithUnreadableStream()
{
using Stream stream = GetTestStream(s_sampleContent);
byte[] encodedMsg = await CoseMultiSignMessage.SignDetachedAsync(stream, GetCoseSigner(DefaultKey, DefaultHash));
CoseMultiSignMessage msg = CoseMessage.DecodeMultiSign(encodedMsg);
using Stream unseekableStream = GetTestStream(s_sampleContent, StreamKind.Unreadable);
await Assert.ThrowsAsync <ArgumentException>("detachedContent", () => msg.Signatures[0].VerifyDetachedAsync(DefaultKey, unseekableStream));
}
public void DecodeMultiSign_VerifyUntagged()
{
// https://github.com/cose-wg/Examples/blob/master/ecdsa-examples/ecdsa-01.json minus first 2 bytes.
CoseMultiSignMessage msg = CoseMessage.DecodeMultiSign(ByteUtils.HexToByteArray("8443A10300A054546869732069732074686520636F6E74656E742E818343A10126A1044231315840D71C05DB52C9CE7F1BF5AAC01334BBEACAC1D86A2303E6EEAA89266F45C01ED602CA649EAF790D8BC99D2458457CA6A872061940E7AFBE48E289DFAC146AE258"));
ReadOnlyCollection <CoseSignature> signatures = msg.Signatures;
Assert.Equal(1, signatures.Count);
Assert.True(signatures[0].VerifyEmbedded(DefaultKey));
}
public void DecodeMultiSign_IncorrectStructure()
{
var writer = new CborWriter();
writer.WriteStartArray(4);
writer.WriteNull();
writer.WriteNull();
writer.WriteNull();
writer.WriteNull();
writer.WriteEndArray();
Assert.Throws <CryptographicException>(() => CoseMessage.DecodeMultiSign(writer.Encode()));
}
public void DecodeMultiSign_VerifyDetachedContent()
{
// Content is replaced with CBOR null - https://github.com/cose-wg/Examples/blob/master/ecdsa-examples/ecdsa-01.json.
CoseMultiSignMessage msg = CoseMessage.DecodeMultiSign(ByteUtils.HexToByteArray("D8628443A10300A0F6818343A10126A1044231315840D71C05DB52C9CE7F1BF5AAC01334BBEACAC1D86A2303E6EEAA89266F45C01ED602CA649EAF790D8BC99D2458457CA6A872061940E7AFBE48E289DFAC146AE258"));
Assert.Null(msg.Content);
ReadOnlyCollection <CoseSignature> signatures = msg.Signatures;
Assert.Equal(1, signatures.Count);
Assert.True(signatures[0].VerifyDetached(DefaultKey, s_sampleContent));
}
public void DecodeMultiSign_ThrowsWithDuplicateHeaders(bool shouldContainInnerException, string hexCborMessage)
{
CryptographicException ex = Assert.Throws <CryptographicException>(() => CoseMessage.DecodeMultiSign(ByteUtils.HexToByteArray(hexCborMessage)));
if (shouldContainInnerException) // if the duplicate headers were in one bucket the exception comes from CborReader because we use CborConformanceMode.Strict.
{
Assert.IsType <CborContentException>(ex.InnerException);
}
else
{
Assert.Null(ex.InnerException);
}
}
internal override CoseMessage Decode(ReadOnlySpan <byte> cborPayload) => CoseMessage.DecodeMultiSign(cborPayload);
internal override CoseMessage Decode(byte[] cborPayload) => CoseMessage.DecodeMultiSign(cborPayload);
public void DecodeMultiSign_IncorrectTag(string hexCborMessage)
{
Assert.Throws <CryptographicException>(() => CoseMessage.DecodeMultiSign(ByteUtils.HexToByteArray(hexCborMessage)));
}