public SRP6Server() 
{

}

 public BigInteger calculateSecret(BigInteger clientA) throws CryptoException 
{
        this.A = SRP6Util.validatePublicValue(N, clientA);
        this.u = SRP6Util.calculateU(digest, N, A, B);
        this.S = calculateS();
        return S;
}

Processes the client's credentials. If valid the shared secret is generated and returned.

 public BigInteger generateServerCredentials() 
{
        BigInteger k = SRP6Util.calculateK(digest, N, g);
        this.b = selectPrivateValue();
    	this.B = k.multiply(v).mod(N).add(g.modPow(b, N)).mod(N);
        return B;
}

Generates the server's credentials that are to be sent to the client.

 public  void init(BigInteger N,
    BigInteger g,
    BigInteger v,
    Digest digest,
    SecureRandom random) 
{
        this.N = N;
        this.g = g;
        this.v = v;
        this.random = random;
        this.digest = digest;
}

Initialises the server to accept a new client authentication attempt

 protected BigInteger selectPrivateValue() 
{
    	return SRP6Util.generatePrivateValue(digest, N, g, random);
}