public virtual byte[] GenerateSignature()
{
if (forSigning)
{
byte[] array = new byte[digest.GetDigestSize()];
digest.DoFinal(array, 0);
try
{
BigInteger[] array2 = dsaSigner.GenerateSignature(array);
byte[] array3 = new byte[64];
byte[] array4 = array2[0].ToByteArrayUnsigned();
byte[] array5 = array2[1].ToByteArrayUnsigned();
array5.CopyTo(array3, 32 - array5.Length);
array4.CopyTo(array3, 64 - array4.Length);
return(array3);
IL_0081:
byte[] result;
return(result);
}
catch (Exception ex)
{
throw new SignatureException(ex.Message, ex);
IL_0097:
byte[] result;
return(result);
}
}
throw new InvalidOperationException("GOST3410DigestSigner not initialised for signature generation.");
}
/**
* Generate a signature for the message we've been loaded with using
* the key we were initialised with.
*/
public virtual byte[] GenerateSignature()
{
if (!forSigning)
{
throw new InvalidOperationException("GOST3410DigestSigner not initialised for signature generation.");
}
byte[] hash = new byte[digest.GetDigestSize()];
digest.DoFinal(hash, 0);
try
{
BigInteger[] sig = dsaSigner.GenerateSignature(hash);
byte[] sigBytes = new byte[64];
// TODO Add methods to allow writing BigInteger to existing byte array?
byte[] r = sig[0].ToByteArrayUnsigned();
byte[] s = sig[1].ToByteArrayUnsigned();
s.CopyTo(sigBytes, 32 - s.Length);
r.CopyTo(sigBytes, 64 - r.Length);
return(sigBytes);
}
catch (Exception e)
{
throw new SignatureException(e.Message, e);
}
}
/**
* Generate a signature for the message we've been loaded with using
* the key we were initialised with.
*/
public virtual byte[] GenerateSignature()
{
if (!forSigning)
{
throw new InvalidOperationException("GOST3410DigestSigner not initialised for signature generation.");
}
byte[] hash = new byte[digest.GetDigestSize()];
digest.DoFinal(hash, 0);
try
{
BigInteger[] sig = dsaSigner.GenerateSignature(hash);
if (hash.Length != 32 && hash.Length != 64)
{
throw new InvalidOperationException("Unexpected hash length " + hash.Length);
}
// TBD: may be better to pass key size in constructor parameters.
int hashSize = hash.Length; // hash size 32 for 256 bit key and 64 for 512 bit key.
byte[] sigBytes = new byte[hashSize * 2];
// TODO Add methods to allow writing BigInteger to existing byte array?
byte[] r = sig[0].ToByteArrayUnsigned();
byte[] s = sig[1].ToByteArrayUnsigned();
s.CopyTo(sigBytes, hashSize - s.Length);
r.CopyTo(sigBytes, hashSize * 2 - r.Length);
return(sigBytes);
}
catch (Exception e)
{
throw new SignatureException(e.Message, e);
}
}
public virtual byte[] GenerateSignature()
{
if (!forSigning)
{
throw new InvalidOperationException("DSADigestSigner not initialised for signature generation.");
}
byte[] array = new byte[digest.GetDigestSize()];
digest.DoFinal(array, 0);
BigInteger[] array2 = dsaSigner.GenerateSignature(array);
return(DerEncode(array2[0], array2[1]));
}
public virtual byte[] GenerateSignature()
{
//IL_000d: Unknown result type (might be due to invalid IL or missing references)
if (!forSigning)
{
throw new InvalidOperationException("DSADigestSigner not initialised for signature generation.");
}
byte[] array = new byte[digest.GetDigestSize()];
digest.DoFinal(array, 0);
BigInteger[] array2 = dsaSigner.GenerateSignature(array);
return(DerEncode(array2[0], array2[1]));
}
/**
* Generate a signature for the message we've been loaded with using
* the key we were initialised with.
*/
public virtual byte[] GenerateSignature()
{
if (!forSigning)
{
throw new InvalidOperationException("DSADigestSigner not initialised for signature generation.");
}
byte[] hash = BouncyCastle.Utilities.Digests.DoFinal(digest);
BigInteger[] sig = dsaSigner.GenerateSignature(hash);
return(DerEncode(sig[0], sig[1]));
}
/**
* Generate a signature for the message we've been loaded with using
* the key we were initialised with.
*/
public byte[] GenerateSignature()
{
if (!forSigning)
{
throw new InvalidOperationException("DSADigestSigner not initialised for signature generation.");
}
byte[] hash = new byte[digest.GetDigestSize()];
digest.DoFinal(hash, 0);
BigInteger[] sig = dsaSigner.GenerateSignature(hash);
return(DerEncode(sig[0], sig[1]));
}
/**
* Generate a signature for the message we've been loaded with using
* the key we were initialised with.
*/
public byte[] GenerateSignature()
{
if (!forSigning)
{
throw new InvalidOperationException("GOST3410DigestSigner not initialised for signature generation.");
}
byte[] hash = new byte[digest.GetDigestSize()];
digest.DoFinal(hash, 0);
try
{
BigInteger[] sig = dsaSigner.GenerateSignature(hash);
byte[] r = sig[0].ToByteArray();
byte[] s = sig[1].ToByteArray();
byte[] sigBytes = new byte[64];
if (s[0] != 0)
{
Array.Copy(s, 0, sigBytes, 32 - s.Length, s.Length);
}
else
{
Array.Copy(s, 1, sigBytes, 32 - (s.Length - 1), s.Length - 1);
}
if (r[0] != 0)
{
Array.Copy(r, 0, sigBytes, 64 - r.Length, r.Length);
}
else
{
Array.Copy(r, 1, sigBytes, 64 - (r.Length - 1), r.Length - 1);
}
return(sigBytes);
}
catch (Exception e)
{
throw new SignatureException(e.Message, e);
}
}
/**
* Generate a signature for the message we've been loaded with using
* the key we were initialised with.
*/
public virtual byte[] GenerateSignature()
{
if (!forSigning)
{
throw new InvalidOperationException("DSADigestSigner not initialised for signature generation.");
}
byte[] hash = new byte[digest.GetDigestSize()];
digest.DoFinal(hash, 0);
BigInteger[] sig = dsa.GenerateSignature(hash);
try
{
return(encoding.Encode(GetOrder(), sig[0], sig[1]));
}
catch (Exception)
{
throw new InvalidOperationException("unable to encode signature");
}
}
public virtual byte[] GenerateSignature()
{
//IL_000d: Unknown result type (might be due to invalid IL or missing references)
if (!forSigning)
{
throw new InvalidOperationException("GOST3410DigestSigner not initialised for signature generation.");
}
byte[] array = new byte[digest.GetDigestSize()];
digest.DoFinal(array, 0);
try
{
BigInteger[] array2 = dsaSigner.GenerateSignature(array);
byte[] array3 = new byte[64];
byte[] array4 = array2[0].ToByteArrayUnsigned();
byte[] array5 = array2[1].ToByteArrayUnsigned();
((global::System.Array)array5).CopyTo((global::System.Array)array3, 32 - array5.Length);
((global::System.Array)array4).CopyTo((global::System.Array)array3, 64 - array4.Length);
return(array3);
}
catch (global::System.Exception ex)
{
throw new SignatureException(ex.get_Message(), ex);
}
}
private void DoTestHMacDetECDsa(IDsa detSigner, IDigest digest, byte[] data, ICipherParameters privKey, BigInteger r, BigInteger s)
{
byte[] m = new byte[digest.GetDigestSize()];
digest.BlockUpdate(data, 0, data.Length);
digest.DoFinal(m, 0);
detSigner.Init(true, privKey);
BigInteger[] rs = detSigner.GenerateSignature(m);
if (!r.Equals(rs[0]))
{
Fail("r value wrong");
}
if (!s.Equals(rs[1]))
{
Fail("s value wrong");
}
}
