private static ICipherParameters GetPrivateParameters(IKey key)
{
DsaPrivateKeyParameters privateKeyParameters;
SecureRandom random;
if (key is KeyWithRandom)
{
KeyWithRandom k = (KeyWithRandom)key;
privateKeyParameters = GetPrivateKeyParameters((AsymmetricDsaPrivateKey)k.Key);
random = k.Random;
}
else
{
privateKeyParameters = GetPrivateKeyParameters((AsymmetricDsaPrivateKey)key);
random = CryptoServicesRegistrar.GetSecureRandom();
}
int effSizeInBits = privateKeyParameters.Parameters.P.BitLength;
if (CryptoServicesRegistrar.IsInApprovedOnlyMode())
{
if (effSizeInBits != 2048 && effSizeInBits != 3072)
{
throw new CryptoUnapprovedOperationError("attempt to create signer with unapproved keysize [" + effSizeInBits + "]", Alg);
}
}
return(new ParametersWithRandom(privateKeyParameters, random));
}
private static ICipherParameters GetPrivateParameters(IKey key)
{
AsymmetricECPrivateKey pK;
SecureRandom random;
if (key is KeyWithRandom)
{
KeyWithRandom k = (KeyWithRandom)key;
pK = (AsymmetricECPrivateKey)k.Key;
random = k.Random;
}
else
{
pK = (AsymmetricECPrivateKey)key;
random = CryptoServicesRegistrar.GetSecureRandom();
}
if (CryptoServicesRegistrar.IsInApprovedOnlyMode())
{
validateCurveSize(Alg, pK.DomainParameters);
}
return(new ParametersWithRandom(GetPrivateKeyParameters(pK), random));
}
private static ICipherParameters GetPrivateParameters(IKey privateKey, AsymmetricRsaKey.Usage rsaUsage)
{
if (privateKey is KeyWithRandom)
{
KeyWithRandom k = (KeyWithRandom)privateKey;
return(new ParametersWithRandom(GetPrivateKeyParameters((AsymmetricRsaPrivateKey)k.Key, rsaUsage), k.Random));
}
else
{
return(new ParametersWithRandom(GetPrivateKeyParameters((AsymmetricRsaPrivateKey)privateKey, rsaUsage), CryptoServicesRegistrar.GetSecureRandom()));
}
}
private static ICipherParameters GetPrivateParameters(IKey key)
{
DsaPrivateKeyParameters privateKeyParameters;
SecureRandom random;
if (key is KeyWithRandom)
{
KeyWithRandom k = (KeyWithRandom)key;
privateKeyParameters = GetPrivateKeyParameters((AsymmetricDsaPrivateKey)k.Key);
random = k.Random;
}
else
{
privateKeyParameters = GetPrivateKeyParameters((AsymmetricDsaPrivateKey)key);
random = CryptoServicesRegistrar.GetSecureRandom();
}
return(new ParametersWithRandom(privateKeyParameters, random));
}
