hash

This article needs a technical review. How you can help.

The hash function takes a variable length message input and produces a fixed-length hash output. It is commonly in the form of a 128-bit "fingerprint" or "message digest". Hashes are very useful for cryptography — they insure the integrity of transmitted data. This provides the basis for HMAC's, which provide message authentication.

Learn more

General knowledge

Document Tags and Contributors

 Contributors to this page: chrisdavidmills, klez, rolfedh, hbloomer
 Last updated by: chrisdavidmills,