internal byte[] GenerateSignature(Ed25519PrivateKeyParameters privateKey, Ed25519PublicKeyParameters publicKey)
{
#if PORTABLE
byte[] buf = ToArray();
int count = buf.Length;
#else
byte[] buf = GetBuffer();
int count = (int)Position;
#endif
byte[] signature = new byte[Ed25519PrivateKeyParameters.SignatureSize];
privateKey.Sign(Ed25519.Algorithm.Ed25519, publicKey, null, buf, 0, count, signature, 0);
Reset();
return(signature);
}
public virtual byte[] GenerateSignature()
{
if (!forSigning || null == privateKey)
{
throw new InvalidOperationException("Ed25519phSigner not initialised for signature generation.");
}
byte[] msg = new byte[Ed25519.PrehashSize];
if (Ed25519.PrehashSize != prehash.DoFinal(msg, 0))
{
throw new InvalidOperationException("Prehash digest failed");
}
byte[] signature = new byte[Ed25519PrivateKeyParameters.SignatureSize];
privateKey.Sign(Ed25519.Algorithm.Ed25519ph, publicKey, context, msg, 0, Ed25519.PrehashSize, signature, 0);
return(signature);
}
internal byte[] GenerateSignature(Ed25519PrivateKeyParameters privateKey, byte[] ctx)
{
lock (this)
{
#if PORTABLE || NETFX_CORE
byte[] buf = ToArray();
int count = buf.Length;
#else
byte[] buf = GetBuffer();
int count = (int)Position;
#endif
byte[] signature = new byte[Ed25519PrivateKeyParameters.SignatureSize];
privateKey.Sign(Ed25519.Algorithm.Ed25519ctx, ctx, buf, 0, count, signature, 0);
Reset();
return(signature);
}
}
public byte[] GenerateSignature()
{
if (privateKey == null)
{
throw new InvalidOperationException("Ed25519DigestSigner not initialised for signature generation.");
}
var hash = new byte[digest.GetDigestSize()];
digest.DoFinal(hash, 0);
var signature = new byte[Ed25519PrivateKeyParameters.SignatureSize];
privateKey.Sign(Ed25519.Algorithm.Ed25519, null, hash, 0, hash.Length, signature, 0);
Reset();
return(signature);
}
public byte[] GenerateSignature()
{
if (privateKey == null)
{
throw new InvalidOperationException("Ed25519DigestSigner not initialised for signature generation.");
}
var hashLength = digest.GetDigestSize();
var hash = ArrayPool <byte> .Shared.Rent(hashLength);
try {
digest.DoFinal(hash, 0);
var signature = new byte[Ed25519PrivateKeyParameters.SignatureSize];
privateKey.Sign(Ed25519.Algorithm.Ed25519, publicKey, null, hash, 0, hashLength, signature, 0);
Reset();
return(signature);
} finally {
ArrayPool <byte> .Shared.Return(hash);
}
}
