internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out RSAPrivateKeyAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
if (!sequenceReader.TryReadUInt8(out decoded.Version))
{
sequenceReader.ThrowIfNotEmpty();
}
decoded.Modulus = sequenceReader.ReadInteger();
decoded.PublicExponent = sequenceReader.ReadInteger();
decoded.PrivateExponent = sequenceReader.ReadInteger();
decoded.Prime1 = sequenceReader.ReadInteger();
decoded.Prime2 = sequenceReader.ReadInteger();
decoded.Exponent1 = sequenceReader.ReadInteger();
decoded.Exponent2 = sequenceReader.ReadInteger();
decoded.Coefficient = sequenceReader.ReadInteger();
sequenceReader.ThrowIfNotEmpty();
}
public static byte ReadUInt8(this AsnReader reader, Asn1Tag tag)
{
if (reader.TryReadUInt8(tag, out byte value))
{
return(value);
}
throw new CryptographicException(SR.Cryptography_Der_Invalid_Encoding);
}
internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out ECPrivateKey decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader explicitReader;
if (!sequenceReader.TryReadUInt8(out decoded.Version))
{
sequenceReader.ThrowIfNotEmpty();
}
if (sequenceReader.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpPrivateKey))
{
decoded.PrivateKey = tmpPrivateKey;
}
else
{
decoded.PrivateKey = sequenceReader.ReadOctetString();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
System.Security.Cryptography.Asn1.ECDomainParameters tmpParameters;
System.Security.Cryptography.Asn1.ECDomainParameters.Decode(explicitReader, out tmpParameters);
decoded.Parameters = tmpParameters;
explicitReader.ThrowIfNotEmpty();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 1));
if (explicitReader.TryGetPrimitiveBitStringValue(out _, out ReadOnlyMemory <byte> tmpPublicKey))
{
decoded.PublicKey = tmpPublicKey;
}
else
{
decoded.PublicKey = explicitReader.ReadBitString(out _);
}
explicitReader.ThrowIfNotEmpty();
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out PrivateKeyInfoAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader collectionReader;
if (!sequenceReader.TryReadUInt8(out decoded.Version))
{
sequenceReader.ThrowIfNotEmpty();
}
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(sequenceReader, out decoded.PrivateKeyAlgorithm);
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpPrivateKey))
{
decoded.PrivateKey = tmpPrivateKey;
}
else
{
decoded.PrivateKey = sequenceReader.ReadOctetString();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
// Decode SEQUENCE OF for Attributes
{
collectionReader = sequenceReader.ReadSetOf(new Asn1Tag(TagClass.ContextSpecific, 0));
var tmpList = new List <System.Security.Cryptography.Asn1.AttributeAsn>();
System.Security.Cryptography.Asn1.AttributeAsn tmpItem;
while (collectionReader.HasData)
{
System.Security.Cryptography.Asn1.AttributeAsn.Decode(collectionReader, out tmpItem);
tmpList.Add(tmpItem);
}
decoded.Attributes = tmpList.ToArray();
}
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out SpecifiedECDomain decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
if (!sequenceReader.TryReadUInt8(out decoded.Version))
{
sequenceReader.ThrowIfNotEmpty();
}
System.Security.Cryptography.Asn1.FieldID.Decode(sequenceReader, out decoded.FieldID);
System.Security.Cryptography.Asn1.CurveAsn.Decode(sequenceReader, out decoded.Curve);
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpBase))
{
decoded.Base = tmpBase;
}
else
{
decoded.Base = sequenceReader.ReadOctetString();
}
decoded.Order = sequenceReader.ReadIntegerBytes();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Integer))
{
decoded.Cofactor = sequenceReader.ReadIntegerBytes();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.ObjectIdentifier))
{
decoded.Hash = sequenceReader.ReadObjectIdentifier();
}
sequenceReader.ThrowIfNotEmpty();
}
