Hashing

Common cryptographic hash functions:

• legacy algorithms:
  • md4
  • md5
  • sha-1
• current algorithms:
  • sha-2
  • sha-3

Common non-cryptographic hash functions:

These hash functions are faster than cryptographic hash functions, but less secure, which can be useful for applications such as bloom filters:

• xxhash
  • has several versions and a handy benchmarks table vs other hashes
• murmur3
  • hosted as part of the handy smhasher tool which includes a website with a table of many more hashes than I will list here, and information on their performance and quality
• jenkins
• fxhash
  • developed for use in firefox, and implemented in rust
• city hash, which comes out of work done at google
• fnv hash, a series of fast hash functions