public void Init(
bool forSigning,
ICipherParameters parameters)
{
this.forSigning = forSigning;
AsymmetricKeyParameter k;
if (parameters is ParametersWithRandom)
{
k = (AsymmetricKeyParameter)((ParametersWithRandom)parameters).Parameters;
}
else
{
k = (AsymmetricKeyParameter)parameters;
}
if (forSigning && !k.IsPrivate)
{
throw new InvalidKeyException("Signing Requires Private Key.");
}
if (!forSigning && k.IsPrivate)
{
throw new InvalidKeyException("Verification Requires Public Key.");
}
Reset();
dsaSigner.Init(forSigning, parameters);
}
/// <summary>
/// Initialise the signer for signing or verification.
/// </summary>
/// <param name="forSigning"></param>
/// <param name="parameters"></param>
/// <exception cref="InvalidKeyException">
/// Signing Requires Private Key.
/// or
/// Verification Requires Public Key.
/// </exception>
public void Init(bool forSigning, ICipherParameters parameters)
{
_forSigning = forSigning;
IAsymmetricKeyParameter k;
var parametersWithRandom = parameters as ParametersWithRandom;
if (parametersWithRandom != null)
{
k = (AsymmetricKeyParameter)parametersWithRandom.Parameters;
}
else
{
k = (AsymmetricKeyParameter)parameters;
}
if (forSigning && !k.IsPrivate)
{
throw new InvalidKeyException("Signing Requires Private Key.");
}
if (!forSigning && k.IsPrivate)
{
throw new InvalidKeyException("Verification Requires Public Key.");
}
this.Reset();
_dsaSigner.Init(forSigning, parameters);
}
public virtual void Init(bool forSigning, ICipherParameters parameters)
{
this.forSigning = forSigning;
AsymmetricKeyParameter asymmetricKeyParameter = (!(parameters is ParametersWithRandom)) ? ((AsymmetricKeyParameter)parameters) : ((AsymmetricKeyParameter)((ParametersWithRandom)parameters).Parameters);
if (forSigning && !asymmetricKeyParameter.IsPrivate)
{
throw new InvalidKeyException("Signing Requires Private Key.");
}
if (!forSigning && asymmetricKeyParameter.IsPrivate)
{
throw new InvalidKeyException("Verification Requires Public Key.");
}
Reset();
dsaSigner.Init(forSigning, parameters);
}
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");
}
}