Archives For November 30, 1999

This simple tutorial shows how to install the most recent xxHash for faster hash checking in Ubuntu Linux.

xxHash is extremely fast non-cryptographic hash algorithm, working at RAM speed limit. It can be useful to check integrity for large amounts of data, index data, and/or used in cryptographic applications like digital signatures.

The library includes the following algorithms:

  • XXH32 : generates 32-bit hashes.
  • XXH64 : generates 64-bit hashes.
  • XXH3/XXH128 (since v0.8.0): generates 64 or 128-bit hashes, using vectorized arithmetic.

I’m new to hash algorithm, but doing hash check regularly when trying out different Linux distributions. And I use sha256, since the most sites provide sha256sum files for the hash code of their disco images.

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