Pure Python hash length extension.
Project description
PureHLE
Pure Python hash length extension.
Installation
pip install purehle
Usage
import hashlib
import purehle
hle = purehle.MD5(hashlib.md5(b"ABCDE").digest(), b"DE")
padding, m = hle.with_length(3)
m.update(b"FG")
message = hle.original + padding + b"FG"
message # b"DE\x80\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00(\x00\x00\x00\x00\x00\x00\x00FG"
m.hexdigest() # 4bbc3725884dad7b4e1358c51959f0b0
hashlib.md5(b"ABC" + message).digest() == m.digest()
Supported Hash Algorithms
- MD5 (
MD%) - SHA-1 (
SHA1) - SHA-256 (
SHA256) - SHA-512 (
SHA512)
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