internal static void Decode(AsnReader reader, out EncryptedDataAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
Decode(reader, Asn1Tag.Sequence, out decoded);
}
internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out EncryptedDataAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader collectionReader;
if (!sequenceReader.TryReadInt32(out decoded.Version))
{
sequenceReader.ThrowIfNotEmpty();
}
System.Security.Cryptography.Asn1.Pkcs7.EncryptedContentInfoAsn.Decode(sequenceReader, out decoded.EncryptedContentInfo);
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
// Decode SEQUENCE OF for UnprotectedAttributes
{
collectionReader = sequenceReader.ReadSetOf(new Asn1Tag(TagClass.ContextSpecific, 1));
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.UnprotectedAttributes = tmpList.ToArray();
}
}
sequenceReader.ThrowIfNotEmpty();
}
private static void DecodeCore(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out EncryptedDataAsn decoded)
{
decoded = default;
AsnValueReader sequenceReader = reader.ReadSequence(expectedTag);
AsnValueReader collectionReader;
if (!sequenceReader.TryReadInt32(out decoded.Version))
{
sequenceReader.ThrowIfNotEmpty();
}
System.Security.Cryptography.Asn1.Pkcs7.EncryptedContentInfoAsn.Decode(ref sequenceReader, rebind, out decoded.EncryptedContentInfo);
if (sequenceReader.HasData && sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag(TagClass.ContextSpecific, 1)))
{
// Decode SEQUENCE OF for UnprotectedAttributes
{
collectionReader = sequenceReader.ReadSetOf(new Asn1Tag(TagClass.ContextSpecific, 1));
var tmpList = new List <System.Security.Cryptography.Asn1.AttributeAsn>();
System.Security.Cryptography.Asn1.AttributeAsn tmpItem;
while (collectionReader.HasData)
{
System.Security.Cryptography.Asn1.AttributeAsn.Decode(ref collectionReader, rebind, out tmpItem);
tmpList.Add(tmpItem);
}
decoded.UnprotectedAttributes = tmpList.ToArray();
}
}
sequenceReader.ThrowIfNotEmpty();
}
internal static void Decode(ref AsnValueReader reader, Asn1Tag expectedTag, ReadOnlyMemory <byte> rebind, out EncryptedDataAsn decoded)
{
try
{
DecodeCore(ref reader, expectedTag, rebind, out decoded);
}
catch (AsnContentException e)
{
throw new CryptographicException(SR.Cryptography_Der_Invalid_Encoding, e);
}
}
internal static void Decode(ref AsnValueReader reader, ReadOnlyMemory <byte> rebind, out EncryptedDataAsn decoded)
{
Decode(ref reader, Asn1Tag.Sequence, rebind, out decoded);
}
