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Quick XOR hash function for OneDrive for Business

Project description

This python library is a Cython wrapper for the [original C implementation](https://https://github.com/flowerysong/quickxorhash). quickxorhash is a C library (libqxh) implementing Microsoft’s QuickXORHash algorithm.

## Algorithm

QuickXORHash is a non-cryptographic hash function that XORs the input bytes in a circular shift pattern, then XORs the least significant bits of the hash with the input length. The canonical representation of the resulting hash is a Base64 encoded string, because hexadecimal is too plebeian.

## Usage `python >>> import quickxorhash >>> h = quickxorhash.quickxorhash() >>> h.update(b'hello world') >>> print(h.digest()) b'h(\x03\x1b\xd8\xf0\x06\x10\xdc\xe1\rrk\x03\x19\x00\x00\x00\x00\x00' >>> import base64 >>> print(base64.b64encode(h.digest())) b'aCgDG9jwBhDc4Q1yawMZAAAAAAA=' `

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