public ElGamalKeyGenerationParameters(
SecureRandom random,
ElGamalParameters parameters)
: base(random, GetStrength(parameters))
{
this.parameters = parameters;
}
protected ElGamalKeyParameters(
bool isPrivate,
ElGamalParameters parameters)
: base(isPrivate)
{
// TODO Should we allow 'parameters' to be null?
this.parameters = parameters;
}
public ElGamalPublicKeyParameters(
BigInteger y,
ElGamalParameters parameters)
: base(false, parameters)
{
if (y == null)
{
throw new ArgumentNullException("y");
}
this.y = y;
}
public ElGamalPrivateKeyParameters(
BigInteger x,
ElGamalParameters parameters)
: base(true, parameters)
{
if (x == null)
{
throw new ArgumentNullException("x");
}
this.x = x;
}
public override bool Equals(
object obj)
{
if (obj == this)
{
return(true);
}
ElGamalParameters other = obj as ElGamalParameters;
if (other == null)
{
return(false);
}
return(Equals(other));
}
protected bool Equals(
ElGamalParameters other)
{
return(p.Equals(other.p) && g.Equals(other.g) && l == other.l);
}
internal static int GetStrength(
ElGamalParameters parameters)
{
return(parameters.L != 0 ? parameters.L : parameters.P.BitLength);
}