73 lines
1.7 KiB
C#
73 lines
1.7 KiB
C#
#if !BESTHTTP_DISABLE_ALTERNATE_SSL && (!UNITY_WEBGL || UNITY_EDITOR)
|
|
#pragma warning disable
|
|
using System;
|
|
|
|
using BestHTTP.SecureProtocol.Org.BouncyCastle.Math;
|
|
|
|
namespace BestHTTP.SecureProtocol.Org.BouncyCastle.Crypto.Parameters
|
|
{
|
|
public class DsaPublicKeyParameters
|
|
: DsaKeyParameters
|
|
{
|
|
private static BigInteger Validate(BigInteger y, DsaParameters parameters)
|
|
{
|
|
// we can't validate without params, fortunately we can't use the key either...
|
|
if (parameters != null)
|
|
{
|
|
if (y.CompareTo(BigInteger.Two) < 0
|
|
|| y.CompareTo(parameters.P.Subtract(BigInteger.Two)) > 0
|
|
|| !y.ModPow(parameters.Q, parameters.P).Equals(BigInteger.One))
|
|
{
|
|
throw new ArgumentException("y value does not appear to be in correct group");
|
|
}
|
|
}
|
|
|
|
return y;
|
|
}
|
|
|
|
private readonly BigInteger y;
|
|
|
|
public DsaPublicKeyParameters(
|
|
BigInteger y,
|
|
DsaParameters parameters)
|
|
: base(false, parameters)
|
|
{
|
|
if (y == null)
|
|
throw new ArgumentNullException("y");
|
|
|
|
this.y = Validate(y, parameters);
|
|
}
|
|
|
|
public BigInteger Y
|
|
{
|
|
get { return y; }
|
|
}
|
|
|
|
public override bool Equals(object obj)
|
|
{
|
|
if (obj == this)
|
|
return true;
|
|
|
|
DsaPublicKeyParameters other = obj as DsaPublicKeyParameters;
|
|
|
|
if (other == null)
|
|
return false;
|
|
|
|
return Equals(other);
|
|
}
|
|
|
|
protected bool Equals(
|
|
DsaPublicKeyParameters other)
|
|
{
|
|
return y.Equals(other.y) && base.Equals(other);
|
|
}
|
|
|
|
public override int GetHashCode()
|
|
{
|
|
return y.GetHashCode() ^ base.GetHashCode();
|
|
}
|
|
}
|
|
}
|
|
#pragma warning restore
|
|
#endif
|