internal static EssCertIdV2 Read(DerSequenceReader reader)
{
var sequenceReader = reader.ReadSequence();
AlgorithmIdentifier algorithm;
if (sequenceReader.HasTag(DerSequenceReader.ConstructedSequence))
{
algorithm = AlgorithmIdentifier.Read(sequenceReader);
}
else
{
algorithm = new AlgorithmIdentifier(new Oid(Oids.Sha256));
}
var hash = sequenceReader.ReadOctetString();
IssuerSerial issuerSerial = null;
if (sequenceReader.HasData)
{
issuerSerial = IssuerSerial.Read(sequenceReader);
if (sequenceReader.HasData)
{
throw new SignatureException(Strings.SigningCertificateV2Invalid);
}
}
return(new EssCertIdV2(algorithm, hash, issuerSerial));
}
public void Read_WithExplicitNullParameters_ReturnsAlgorithmIdentifier()
{
var bytes = new BcAlgorithmIdentifier(new DerObjectIdentifier(Oids.Sha256), DerNull.Instance).GetDerEncoded();
var algorithmId = AlgorithmIdentifier.Read(bytes);
Assert.Equal(Oids.Sha256, algorithmId.Algorithm.Value);
}
public void Read_WithValidInput_ReturnsAlgorithmIdentifier(string oid)
{
var bytes = new BcAlgorithmIdentifier(new DerObjectIdentifier(oid)).GetDerEncoded();
var algorithmId = AlgorithmIdentifier.Read(bytes);
Assert.Equal(oid, algorithmId.Algorithm.Value);
}
internal static MessageImprint Read(DerSequenceReader reader)
{
var imprintReader = reader.ReadSequence();
var hashAlgorithm = AlgorithmIdentifier.Read(imprintReader);
var hashedMessage = imprintReader.ReadOctetString();
if (hashedMessage == null || hashedMessage.Length == 0)
{
throw new CryptographicException(Strings.InvalidAsn1);
}
if (imprintReader.HasData)
{
throw new CryptographicException(Strings.InvalidAsn1);
}
return(new MessageImprint(hashAlgorithm, hashedMessage));
}
public void Read_WithInvalidAsn1_Throws()
{
Assert.Throws <CryptographicException>(
() => AlgorithmIdentifier.Read(new byte[] { 0x30, 0x0b }));
}