reversehash.py

# ASCII - SHA3-512 - any
# Sudo>EngSoc xx
import hashlib
import base64
import random
import string

#INPUT_STRING = "Sudo>EngSoc,"
INPUT_STRING = "Sudo, better than Eng Soc "
SEARCH_TERM = "Sudo"
ALLOWED_CHARACTERS = string.ascii_letters + string.digits
NUMBER_OF_CHARACTERS = len(ALLOWED_CHARACTERS)

def characterToIndex(char):
    return ALLOWED_CHARACTERS.index(char)

def indexToCharacter(index):
    if NUMBER_OF_CHARACTERS <= index:
        raise ValueError("Index out of range.")
    else:
        return ALLOWED_CHARACTERS[index]

def next(string):
    if len(string) <= 0:
        string.append(indexToCharacter(0))
    else:
        string[0] = indexToCharacter((characterToIndex(string[0]) + 1) % NUMBER_OF_CHARACTERS)
        if characterToIndex(string[0]) == 0:
            return list(string[0]) + next(string[1:])
    return string

#print(base64.b32encode(hash))
#print(getRandCharOfLength(2))
class color:
   PURPLE = '\033[95m'
   CYAN = '\033[96m'
   DARKCYAN = '\033[36m'
   BLUE = '\033[94m'
   GREEN = '\033[92m'
   YELLOW = '\033[93m'
   RED = '\033[91m'
   BOLD = '\033[1m'
   UNDERLINE = '\033[4m'
   END = '\033[0m'

def main():
    sequence = list()
    foundFlag = True
    #print(base64.b64encode(hashlib.sha384('Sudo, better than Eng Soc jdXla'.encode('ascii')).digest()))
    while foundFlag:
        sequence = next(sequence)
        testString = INPUT_STRING + "".join(sequence)
        #hash = hashlib.sha3_512(testString.encode('ascii')).digest()
        hash = hashlib.sha3_384(testString.encode('ascii')).digest()
        #testHash = hashlib.md5(testString.encode('ascii')).hexdigest()     
        
        #enc = base64.b32encode(hash)
        enc = base64.b64encode(hash)
        result = str(enc).find(SEARCH_TERM, 4, 10)
        slen = len(SEARCH_TERM)
        if result != -1:
            print("" + testString + "")
            encstr = str(enc)
            print(encstr[:result] + color.UNDERLINE + encstr[result:result+slen] + color.END + encstr[result+slen:])

            print()
            #input()

if __name__ == "__main__":
    main()