perf: faster ZipCrypto decompression #92
Merged
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Inspired by the report at #91, found some performance improvements for the ZipCrypto function, decrypt_weak_decompress. From some light testing of a password proteceted 100MB file of pseudo-random data on my local filesystem, it seems to reduce decryption+decompression time from ~55 seconds to ~45 seconds, which also makes it a bit faster than Python's zipfile, at least in this circumstance.