32 lines
728 B
Python
32 lines
728 B
Python
#!/usr/bin/env python
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from hashlib import sha3_256
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from itertools import count
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from Crypto.Cipher import ChaCha20
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from math import ceil
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def derive_string(input, length, choices):
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result = ""
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cipher = ChaCha20.new(key=sha3_256(input).digest())
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print(len(choices))
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for pow in count():
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if 2**pow > len(choices):
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break
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print(pow)
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while len(result) < length:
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seek = int.from_bytes(cipher.encrypt(b'0'*ceil(pow/8)), byteorder='little')
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print(seek, len(choices))
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if seek < len(choices):
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result += choices[seek]
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else:
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continue
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return result
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print(
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derive_string(b'12345', length=100, choices='abcde12345')
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)
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