36 lines
693 B
Python
36 lines
693 B
Python
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# Lesson 8 Task e1900ba2: SHA-256 crack (?)
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# Author: Stanislav Mykhailenko
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# License: Unlicense
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# Return codes:
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# 0 - OK
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# 1 - Invalid hash
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# 2 - Not cracked
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import hashlib, itertools, sys
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def hashError():
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print("Invalid SHA-256 hash.")
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sys.exit(1)
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crackedHash = input("Enter SHA-256 hash: ")
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if len(crackedHash) != 64:
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hashError()
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try:
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int(crackedHash, 16)
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except ValueError:
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hashError()
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for product in itertools.product('abcdefghijklmnopqrstuvwxyz', repeat=4):
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string = ''
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for i in range(len(product)):
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string += product[i]
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if crackedHash == hashlib.sha256(string.encode('utf-8')).hexdigest():
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print("Cracked: " + string)
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sys.exit(0)
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print("Not cracked.")
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sys.exit(2)
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