public unsafe int SignHash(IHashProvider provider, SignatureScheme scheme, ref WritableBuffer writer, byte *message, int messageLength)
{
var hash = provider.GetHashInstance(_hashType);
hash.HashData(message, messageLength);
var digest = new byte[hash.HashSize];
fixed(byte *dPtr = digest)
{
hash.InterimHash(dPtr, digest.Length);
}
writer.Ensure(_privateKey.KeySize);
var result = _privateKey.SignHash(digest);
writer.Write(result);
return(result.Length);
}
public unsafe int SignHash(IHashProvider provider, SignatureScheme scheme, ref WritableBuffer writer, byte *message, int messageLength)
{
var hash = provider.GetHashInstance(_hashType);
hash.HashData(message, messageLength);
var digest = new byte[hash.HashSize];
fixed(byte *dPtr = digest)
{
hash.InterimHash(dPtr, digest.Length);
}
var result = _privateKey.SignHash(digest);
var enc = new System.Security.Cryptography.AsnEncodedData(_certificate.SignatureAlgorithm, result);
writer.Write(result);
return(result.Length);
}
public unsafe int SignHash(IHashProvider provider, SignatureScheme scheme, ref WritableBuffer writer, byte *message, int messageLength)
{
var hash = provider.GetHashInstance(_hashType);
hash.HashData(message, messageLength);
var digest = new byte[hash.HashSize];
fixed(byte *dPtr = digest)
{
hash.InterimHash(dPtr, digest.Length);
}
writer.Ensure(ECDSA_size(_ecKey));
GCHandle handle;
var output = writer.Memory.GetPointer(out handle);
try
{
fixed(byte *iPtr = digest)
{
var sigSize = writer.Memory.Length;
ThrowOnError(ECDSA_sign(0, iPtr, digest.Length, output, ref sigSize, _ecKey));
writer.Advance(sigSize);
return(sigSize);
}
}
finally
{
if (handle.IsAllocated)
{
handle.Free();
}
}
}
