hashandsalt.py

#!/bin/env python
import sys
import time
import string
import random
import hashlib
import os

out = "ERROR: No argument was given or the given argument was invalid."

try:
    elp = time.time()#int(time.time() * 1000)
    psw = sys.argv[3]
    ins = sys.argv[2]
    slt = int(sys.argv[1])
    anp = list(string.lowercase + string.uppercase + string.digits + string.punctuation)
    out = ""

    # I guess it is recommended that the salt size be at least the size of the hash
    if slt % 8 != 0:
        out = "ERROR: Salt length not a multiple of 8"
        raise Exception
    
    if ins.lower() in hashlib.algorithms:
        h = hashlib.new(ins.lower());
    else:
        out = "ERROR: Unsupported Algorithm."
        raise Exception

    if slt == 0:
        slt = h.digest_size()
        print("No salt length given, generating a %d size hash"%(slt, ));
    h.update(psw)

    if slt != 0:
        slt = os.urandom(slt);
        h.update(slt);

    print("String Hashed......: %s" % psw)
    print("Salt Generated(hex): %s" % slt.encode("hex"))
    #print("Regular Digest: %s" % h.digest())
    print("Hex Digest.........: %s" % h.hexdigest())
    print("Digest Size........: %d bytes" % int(h.digest_size())
    print("Block Size.........: %d bytes" % int(h.block_size())
    print(" ")
    out = "Time Elapsed.......: %d" % int((time.time()-elp) * 1000)

finally:
    sys.exit(out)