/// <summary>
/// Constructor.
/// </summary>
/// <param name="groupType">DH group defined in [RFC2412] and MS-AIPS.</param>
public Oakley(DhGroupType groupType)
{
// The prime used for DH group
string primeString = null;
// Generator of the prime, both 768 bit and 1024 bit use the same value.
switch (groupType)
{
case DhGroupType.MODP768Bit:
primeString = Modp768BitPrimeString;
break;
case DhGroupType.MODP1024Bit:
primeString = Modp1024BitPrimeString;
break;
case DhGroupType.MODP2048Bit:
primeString = Modp2048BitPrimeString;
break;
case DhGroupType.ECP256:
case DhGroupType.ECP384:
throw new NotImplementedException();
default:
throw new InvalidOperationException("Invalid DH group type");
}
this.randomExponentLength = bitLength;
this.exponent = RandomBigInteger(randomExponentLength);
this.prime = BigInteger.Parse(primeString);
this.baseNum = new BigInteger(new byte[] { 0x02 });
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="groupType">DH group defined in [RFC2412] and MS-AIPS.</param>
public Oakley(DhGroupType groupType)
{
// The prime used for DH group
string primeString = null;
// Generator of the prime, both 768 bit and 1024 bit use the same value.
switch (groupType)
{
case DhGroupType.MODP768Bit:
primeString = Modp768BitPrimeString;
break;
case DhGroupType.MODP1024Bit:
primeString = Modp1024BitPrimeString;
break;
case DhGroupType.MODP2048Bit:
primeString = Modp2048BitPrimeString;
break;
case DhGroupType.ECP256:
case DhGroupType.ECP384:
throw new NotImplementedException();
default:
throw new InvalidOperationException("Invalid DH group type");
}
this.randomExponentLength = bitLength;
this.exponent = RandomBigInteger(randomExponentLength);
this.prime = BigInteger.Parse(primeString);
this.baseNum = new BigInteger(new byte[] { 0x02 });
}
