public override async Task <int> Write(IAsn1Serializer serializer, Asn1Boolean item, Stream stream,
CancellationToken cancellationToken)
{
var boolean = (Asn1Boolean)item;
var identBytes = await SerializerUtility.WriteIdentifier(item.Id, stream, cancellationToken);
var buffer = new byte[] { 1, boolean.Value?(byte)0xff :(byte)0x00 };
await stream.WriteBERBytes(buffer, cancellationToken : cancellationToken);
return(identBytes + buffer.Length);
}
public override async Task <int> Write(IAsn1Serializer asn1Serializer, Asn1Set item, Stream stream, CancellationToken cancellationToken)
{
var(ms, setItemBytes) =
await SerializerUtility.WriteItemsToBufferedStream(asn1Serializer, item.Items, cancellationToken);
var identBytes = await SerializerUtility.WriteIdentifier(item.Id, stream, cancellationToken);
var lenBytes = await SerializerUtility.WriteLength(setItemBytes, stream, cancellationToken);
await ms.CopyToAsync(stream, cancellationToken);
return(identBytes + lenBytes + setItemBytes);
}
public override async Task <(Asn1Object, int)> Read(IAsn1Serializer serializer, Identifier id, int length,
Stream stream, CancellationToken cancellationToken)
{
var totalLength = 0;
var lst = new List <Asn1Object>();
while (length > 0)
{
var(obj, bytesRead) = await serializer.Read(stream, cancellationToken);
lst.Add(obj);
length -= bytesRead;
totalLength += bytesRead;
}
return(new Asn1Set(lst), totalLength);
}
public static async Task <(MemoryStream ms, int innerLength)> WriteItemsToBufferedStream(
IAsn1Serializer asn1Serializer, IEnumerable <Asn1Object> items, CancellationToken cancellationToken)
{
var ms = new MemoryStream();
var sequenceItemsBytes = 0;
foreach (var part in items)
{
sequenceItemsBytes += await asn1Serializer.Write(part, ms, cancellationToken);
}
await ms.FlushAsync(cancellationToken);
ms.Position = 0;
return(ms, sequenceItemsBytes);
}
public CertificateRequestAsn1DEREncoder(IAsn1Serializer serializer)
{
this.serializer = serializer;
}
public override async Task <int> Write(IAsn1Serializer asn1Serializer, Asn1Null item, Stream stream, CancellationToken cancellationToken)
{
return(await SerializerUtility.WriteIdentifier(item.Id, stream, cancellationToken));
}
public override Task <(Asn1Object, int)> Read(IAsn1Serializer serializer, Identifier id, int length,
Stream stream,
CancellationToken cancellationToken)
{
return(Task.FromResult(((Asn1Object) new Asn1Null(), 0)));
}
public CertificateRequestAsn1DEREncoder(IAsn1Serializer serializer)
{
this.serializer = serializer;
}
public CertificateRequestAsn1DEREncoder(IAsn1Serializer serializer)
{
this.serializer = serializer ?? throw new ArgumentNullException(nameof(serializer));
}
public abstract Task <int> Write(IAsn1Serializer asn1Serializer, Asn1Object item, Stream stream, CancellationToken cancellationToken);
public abstract Task <(Asn1Object, int)> Read(IAsn1Serializer serializer, Identifier id, int length,
Stream stream,
CancellationToken cancellationToken);
