rsa3.py 文件源码

def get_pkey():
    print "DH key exchange system:"
    P = getPrime(m)
    print "P: ", hex(P)
    G = getRandomNBitInteger(m)
    a = getRandomNBitInteger(m/4)
    Ya = pow(G, a, P)
    print "Please enter you secret key: "
    try:
        b = raw_input()
        b = int(b)
        assert size(b) == m/4
    except:
        m_exit(-1)
    Yb = pow(G, b, P)
    K = pow(Yb, a, P)
    return (Ya, K)