nrpc.py 文件源码

def ComputeSessionKeyStrongKey(sharedSecret, clientChallenge, serverChallenge, sharedSecretHash = None):
    # added the ability to receive hashes already

    if sharedSecretHash is None:
        M4SS = ntlm.NTOWFv1(sharedSecret)
    else:
        M4SS = sharedSecretHash

    md5 = hashlib.new('md5')
    md5.update('\x00'*4)
    md5.update(clientChallenge)
    md5.update(serverChallenge)
    finalMD5 = md5.digest()
    hm = hmac.new(M4SS) 
    hm.update(finalMD5)
    return hm.digest()