| /* |
| * cifra - embedded cryptography library |
| * Written in 2014 by Joseph Birr-Pixton <jpixton@gmail.com> |
| * |
| * To the extent possible under law, the author(s) have dedicated all |
| * copyright and related and neighboring rights to this software to the |
| * public domain worldwide. This software is distributed without any |
| * warranty. |
| * |
| * You should have received a copy of the CC0 Public Domain Dedication |
| * along with this software. If not, see |
| * <http://creativecommons.org/publicdomain/zero/1.0/>. |
| */ |
| |
| #ifndef PBKDF2_H |
| #define PBKDF2_H |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #include "chash.h" |
| |
| /** |
| * PBKDF2-HMAC |
| * =========== |
| * This is PBKDF2 as described by PKCS#5/RFC2898 with HMAC as the PRF. |
| */ |
| |
| /* .. c:function:: $DECL |
| * This computes PBKDF2-HMAC with the given hash functon. |
| * |
| * :param pw: password input buffer. |
| * :param npw: password length. |
| * :param salt: salt input buffer. |
| * :param nsalt: salt length. |
| * :param iterations: non-zero iteration count. Tune this for performance/security tradeoff. |
| * :param out: key material output buffer. `nout` bytes are written here. |
| * :param nout: key material length. |
| * :param hash: hash function description. |
| */ |
| void cf_pbkdf2_hmac(const uint8_t *pw, size_t npw, |
| const uint8_t *salt, size_t nsalt, |
| uint32_t iterations, |
| uint8_t *out, size_t nout, |
| const cf_chash *hash); |
| |
| #endif |
