bcrypt
Password-based key derivation function / From Wikipedia, the free encyclopedia
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bcrypt is a password-hashing function designed by Niels Provos and David Mazières, based on the Blowfish cipher and presented at USENIX in 1999.[1] Besides incorporating a salt to protect against rainbow table attacks, bcrypt is an adaptive function: over time, the iteration count can be increased to make it slower, so it remains resistant to brute-force search attacks even with increasing computation power.
General | |
---|---|
Designers | Niels Provos, David Mazières |
First published | 1999 |
Derived from | Blowfish (cipher) |
Detail | |
Digest sizes | 184 bit |
Rounds | variable via cost parameter |
The bcrypt function is the default password hash algorithm for OpenBSD,[2][non-primary source needed] and was the default for some Linux distributions such as SUSE Linux.[3][failed verification]
There are implementations of bcrypt in C, C++, C#, Embarcadero Delphi, Elixir,[4] Go,[5] Java,[6][7] JavaScript,[8] Perl, PHP, Ruby, python and other languages.