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fb-tiger-hash

v1.0.0

Published

Native JS implementation of the Tiger hash. Optionally supports flipped byte ordering found in PHP-5.3

Downloads

3,399

Vulnerabilities

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Links

Git

Maintainers

fbfb

Keywords

cryptofacebookfbthash

Readme

fb-tiger-hash

A Native JS implementation of Tiger hash.

Provides a cross-platform Tiger hash implementation that supports the flipped byte-order (endianness) of PHP's original Tiger implementation for backwards compatability.

See its use in HHVM

It's main intended use is for the Facebook FBT internationalization framework, where a hashing algorithm is supplied to create unique identifiers from source strings and their descriptions.

NOTE: This implementation is not optimized for reading large blocks of data or streams. It both expects a simple string AND loads the entire input into memory in a Buffer.

More on the Tiger algorithm:

  • https://www.cs.technion.ac.il/~biham/Reports/Tiger/tiger/node3.html
  • https://www.cl.cam.ac.uk/~rja14/Papers/tiger.pdf