internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out PBEParameter decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
if (sequenceReader.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpSalt))
{
decoded.Salt = tmpSalt;
}
else
{
decoded.Salt = sequenceReader.ReadOctetString();
}
if (!sequenceReader.TryReadInt32(out decoded.IterationCount))
{
sequenceReader.ThrowIfNotEmpty();
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(AsnReader reader, out Pbkdf2SaltChoice decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
Asn1Tag tag = reader.PeekTag();
if (tag.HasSameClassAndValue(Asn1Tag.PrimitiveOctetString))
{
if (reader.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpSpecified))
{
decoded.Specified = tmpSpecified;
}
else
{
decoded.Specified = reader.ReadOctetString();
}
}
else if (tag.HasSameClassAndValue(Asn1Tag.Sequence))
{
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn tmpOtherSource;
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(reader, out tmpOtherSource);
decoded.OtherSource = tmpOtherSource;
}
else
{
throw new CryptographicException();
}
}
public static ReadOnlyMemory <byte> GetOctetStringBytes(this AsnReader reader, Asn1Tag expectedTag)
{
if (reader.TryGetPrimitiveOctetStringBytes(expectedTag, out ReadOnlyMemory <byte> contents))
{
return(contents);
}
// Guaranteed too big, because it has the tag and length.
int length = reader.PeekEncodedValue().Length;
byte[] rented = ArrayPool <byte> .Shared.Rent(length);
try
{
if (reader.TryCopyOctetStringBytes(expectedTag, rented, out int bytesWritten))
{
return(new ReadOnlyMemory <byte>(rented.AsSpan(0, bytesWritten).ToArray()));
}
Debug.Fail("TryCopyOctetStringBytes produced more data than the encoded size");
throw new CryptographicException();
}
finally
{
Array.Clear(rented, 0, length);
ArrayPool <byte> .Shared.Return(rented);
}
}
internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out CurveAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
if (sequenceReader.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpA))
{
decoded.A = tmpA;
}
else
{
decoded.A = sequenceReader.ReadOctetString();
}
if (sequenceReader.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpB))
{
decoded.B = tmpB;
}
else
{
decoded.B = sequenceReader.ReadOctetString();
}
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.PrimitiveBitString))
{
if (sequenceReader.TryGetPrimitiveBitStringValue(out _, out ReadOnlyMemory <byte> tmpSeed))
{
decoded.Seed = tmpSeed;
}
else
{
decoded.Seed = sequenceReader.ReadBitString(out _);
}
}
sequenceReader.ThrowIfNotEmpty();
}
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.TryGetPrimitiveOctetStringBytes(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.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpBase))
{
decoded.Base = tmpBase;
}
else
{
decoded.Base = sequenceReader.ReadOctetString();
}
decoded.Order = sequenceReader.GetIntegerBytes();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Integer))
{
decoded.Cofactor = sequenceReader.GetIntegerBytes();
}
decoded.Hash = sequenceReader.ReadObjectIdentifier();
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out EncryptedPrivateKeyInfoAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
System.Security.Cryptography.Asn1.AlgorithmIdentifierAsn.Decode(sequenceReader, out decoded.EncryptionAlgorithm);
if (sequenceReader.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpEncryptedData))
{
decoded.EncryptedData = tmpEncryptedData;
}
else
{
decoded.EncryptedData = sequenceReader.ReadOctetString();
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out X509ExtensionAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader defaultReader;
decoded.ExtnId = sequenceReader.ReadObjectIdentifier();
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(Asn1Tag.Boolean))
{
decoded.Critical = sequenceReader.ReadBoolean();
}
else
{
defaultReader = new AsnReader(s_defaultCritical, AsnEncodingRules.DER);
decoded.Critical = defaultReader.ReadBoolean();
}
if (sequenceReader.TryGetPrimitiveOctetStringBytes(out ReadOnlyMemory <byte> tmpExtnValue))
{
decoded.ExtnValue = tmpExtnValue;
}
else
{
decoded.ExtnValue = sequenceReader.ReadOctetString();
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(AsnReader reader, out GeneralNameAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
Asn1Tag tag = reader.PeekTag();
AsnReader explicitReader;
if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 0)))
{
System.Security.Cryptography.Asn1.OtherNameAsn tmpOtherName;
System.Security.Cryptography.Asn1.OtherNameAsn.Decode(reader, new Asn1Tag(TagClass.ContextSpecific, 0), out tmpOtherName);
decoded.OtherName = tmpOtherName;
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
decoded.Rfc822Name = reader.GetCharacterString(new Asn1Tag(TagClass.ContextSpecific, 1), UniversalTagNumber.IA5String);
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 2)))
{
decoded.DnsName = reader.GetCharacterString(new Asn1Tag(TagClass.ContextSpecific, 2), UniversalTagNumber.IA5String);
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 3)))
{
decoded.X400Address = reader.GetEncodedValue();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 4)))
{
explicitReader = reader.ReadSequence(new Asn1Tag(TagClass.ContextSpecific, 4));
decoded.DirectoryName = explicitReader.GetEncodedValue();
explicitReader.ThrowIfNotEmpty();
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 5)))
{
System.Security.Cryptography.Asn1.EdiPartyNameAsn tmpEdiPartyName;
System.Security.Cryptography.Asn1.EdiPartyNameAsn.Decode(reader, new Asn1Tag(TagClass.ContextSpecific, 5), out tmpEdiPartyName);
decoded.EdiPartyName = tmpEdiPartyName;
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 6)))
{
decoded.Uri = reader.GetCharacterString(new Asn1Tag(TagClass.ContextSpecific, 6), UniversalTagNumber.IA5String);
}
else if (tag.HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 7)))
{
if (reader.TryGetPrimitiveOctetStringBytes(new Asn1Tag(TagClass.ContextSpecific, 7), out ReadOnlyMemory <byte> tmpIPAddress))
{
decoded.IPAddress = tmpIPAddress;
}
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();
}
}
