public static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory<byte> rebind, out X509ExtensionAsn decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
AsnValueReader defaultReader;
ReadOnlySpan<byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan<byte> tmpSpan;
decoded.ExtnId = sequenceReader.ReadObjectIdentifier();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Boolean))
{
decoded.Critical = sequenceReader.ReadBoolean();
}
else
{
defaultReader = new AsnValueReader(DefaultCritical, AsnEncodingRules.DER);
decoded.Critical = defaultReader.ReadBoolean();
}
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.ExtnValue = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.ExtnValue = sequenceReader.ReadOctetString();
}
sequenceReader.ThrowIfNotEmpty();
}
public static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out Rc2CbcParameters decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (!sequenceReader.TryReadInt32(out decoded.Rc2Version))
{
sequenceReader.ThrowIfNotEmpty();
}
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.Iv = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.Iv = sequenceReader.ReadOctetString();
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out Pbkdf2SaltChoice decoded)
{
decoded = default;
Asn1Tag tag = reader.PeekTag();
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (tag.HasSameClassAndValue(Asn1Tag.PrimitiveOctetString))
{
if (reader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.Specified = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.Specified = reader.ReadOctetString();
}
}
else if (tag.HasSameClassAndValue(Asn1Tag.Sequence))
{
Medikit.Security.Cryptography.Asn1.AlgorithmIdentifierAsn tmpOtherSource;
Medikit.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref reader, rebind, out tmpOtherSource);
decoded.OtherSource = tmpOtherSource;
}
else
{
throw new CryptographicException();
}
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out CurveAsn decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.A = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.A = sequenceReader.ReadOctetString();
}
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.B = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.B = sequenceReader.ReadOctetString();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.PrimitiveBitString))
{
if (sequenceReader.TryReadPrimitiveBitStringValue(out _, out tmpSpan))
{
decoded.Seed = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.Seed = sequenceReader.ReadBitString(out _);
}
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out ECPrivateKey decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
AsnValueReader explicitReader;
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (!sequenceReader.TryReadUInt8(out decoded.Version))
{
sequenceReader.ThrowIfNotEmpty();
}
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.PrivateKey = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.PrivateKey = sequenceReader.ReadOctetString();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
explicitReader = sequenceReader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 0));
Medikit.Security.Cryptography.Asn1.ECDomainParameters tmpParameters;
Medikit.Security.Cryptography.Asn1.ECDomainParameters.Decode(ref explicitReader, rebind, 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.TryReadPrimitiveBitStringValue(out _, out tmpSpan))
{
decoded.PublicKey = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.PublicKey = explicitReader.ReadBitString(out _);
}
explicitReader.ThrowIfNotEmpty();
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out PrivateKeyInfoAsn decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
AsnValueReader collectionReader;
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (!sequenceReader.TryReadUInt8(out decoded.Version))
{
sequenceReader.ThrowIfNotEmpty();
}
Medikit.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref sequenceReader, rebind, out decoded.PrivateKeyAlgorithm);
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.PrivateKey = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
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 <Medikit.Security.Cryptography.Asn1.AttributeAsn>();
Medikit.Security.Cryptography.Asn1.AttributeAsn tmpItem;
while (collectionReader.HasData)
{
Medikit.Security.Cryptography.Asn1.AttributeAsn.Decode(ref collectionReader, rebind, out tmpItem);
tmpList.Add(tmpItem);
}
decoded.Attributes = tmpList.ToArray();
}
}
sequenceReader.ThrowIfNotEmpty();
}
private bool TryReadPrimitiveOctetStringBytes(
Asn1Tag expectedTag,
UniversalTagNumber universalTagNumber,
out ReadOnlyMemory <byte> contents)
{
AsnValueReader valueReader = OpenValueReader();
ReadOnlySpan <byte> span;
if (valueReader.TryReadPrimitiveOctetStringBytes(expectedTag, universalTagNumber, out span))
{
contents = AsnValueReader.Slice(_data, span);
valueReader.MatchSlice(ref _data);
return(true);
}
contents = default;
return(false);
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out SpecifiedECDomain decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (!sequenceReader.TryReadUInt8(out decoded.Version))
{
sequenceReader.ThrowIfNotEmpty();
}
Medikit.Security.Cryptography.Asn1.FieldID.Decode(ref sequenceReader, rebind, out decoded.FieldID);
Medikit.Security.Cryptography.Asn1.CurveAsn.Decode(ref sequenceReader, rebind, out decoded.Curve);
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.Base = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.Base = sequenceReader.ReadOctetString();
}
tmpSpan = sequenceReader.ReadIntegerBytes();
decoded.Order = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Integer))
{
tmpSpan = sequenceReader.ReadIntegerBytes();
decoded.Cofactor = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.ObjectIdentifier))
{
decoded.Hash = sequenceReader.ReadObjectIdentifier();
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out EncryptedPrivateKeyInfoAsn decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
Medikit.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(ref sequenceReader, rebind, out decoded.EncryptionAlgorithm);
if (sequenceReader.TryReadPrimitiveOctetStringBytes(out tmpSpan))
{
decoded.EncryptedData = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.EncryptedData = sequenceReader.ReadOctetString();
}
sequenceReader.ThrowIfNotEmpty();
}
public static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out GeneralNameAsn decoded)
{
decoded = default;
Asn1Tag tag = reader.PeekTag();
AsnValueReader explicitReader;
ReadOnlySpan <byte> rebindSpan = rebind.Span;
int offset;
ReadOnlySpan <byte> tmpSpan;
if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
Medikit.Security.Cryptography.Asn1.OtherNameAsn tmpOtherName;
Medikit.Security.Cryptography.Asn1.OtherNameAsn.Decode(ref reader, new Asn1Tag(TagClass.ContextSpecific, 0), rebind, out tmpOtherName);
decoded.OtherName = tmpOtherName;
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
decoded.Rfc822Name = reader.ReadCharacterString(new Asn1Tag(TagClass.ContextSpecific, 1), UniversalTagNumber.IA5String);
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 2)))
{
decoded.DnsName = reader.ReadCharacterString(new Asn1Tag(TagClass.ContextSpecific, 2), UniversalTagNumber.IA5String);
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 3)))
{
tmpSpan = reader.ReadEncodedValue();
decoded.X400Address = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 4)))
{
explicitReader = reader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 4));
tmpSpan = explicitReader.ReadEncodedValue();
decoded.DirectoryName = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
explicitReader.ThrowIfNotEmpty();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 5)))
{
Medikit.Security.Cryptography.Asn1.EdiPartyNameAsn tmpEdiPartyName;
Medikit.Security.Cryptography.Asn1.EdiPartyNameAsn.Decode(ref reader, new Asn1Tag(TagClass.ContextSpecific, 5), rebind, out tmpEdiPartyName);
decoded.EdiPartyName = tmpEdiPartyName;
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 6)))
{
decoded.Uri = reader.ReadCharacterString(new Asn1Tag(TagClass.ContextSpecific, 6), UniversalTagNumber.IA5String);
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 7)))
{
if (reader.TryReadPrimitiveOctetStringBytes(new Asn1Tag(TagClass.ContextSpecific, 7), out tmpSpan))
{
decoded.IPAddress = rebindSpan.Overlaps(tmpSpan, out offset) ? rebind.Slice(offset, tmpSpan.Length) : tmpSpan.ToArray();
}
else
{
decoded.IPAddress = reader.ReadOctetString(new Asn1Tag(TagClass.ContextSpecific, 7));
}
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 8)))
{
decoded.RegisteredId = reader.ReadObjectIdentifierAsString(new Asn1Tag(TagClass.ContextSpecific, 8));
}
else
{
throw new CryptographicException();
}
}
