diff options
author | Dan Klein <danklei@cisco.com> | 2015-08-24 13:22:48 +0300 |
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committer | Dan Klein <danklei@cisco.com> | 2015-08-24 13:22:48 +0300 |
commit | dab741a80699f86e86c91718872a052cca9bbb25 (patch) | |
tree | 1959c4a2cea440170a5113dcb067796cb20ffb64 /external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pbkdf2-sha256.c | |
parent | d3f26ece7d4383df0b22fe9c3cb3e695381ec737 (diff) |
Fixed dependencies of Control Plane to use external_lib sources
Diffstat (limited to 'external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pbkdf2-sha256.c')
-rw-r--r-- | external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pbkdf2-sha256.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pbkdf2-sha256.c b/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pbkdf2-sha256.c new file mode 100644 index 00000000..9b585a27 --- /dev/null +++ b/external_libs/python/pyzmq-14.7.0/bundled/libsodium/src/libsodium/crypto_pwhash/scryptsalsa208sha256/pbkdf2-sha256.c @@ -0,0 +1,85 @@ +/*- + * Copyright 2005,2007,2009 Colin Percival + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * + * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + */ + +#include <sys/types.h> + +#include <stdint.h> +#include <stdlib.h> +#include <string.h> + +#include "crypto_auth_hmacsha256.h" +#include "pbkdf2-sha256.h" +#include "sysendian.h" +#include "utils.h" + +/** + * PBKDF2_SHA256(passwd, passwdlen, salt, saltlen, c, buf, dkLen): + * Compute PBKDF2(passwd, salt, c, dkLen) using HMAC-SHA256 as the PRF, and + * write the output to buf. The value dkLen must be at most 32 * (2^32 - 1). + */ +void +PBKDF2_SHA256(const uint8_t * passwd, size_t passwdlen, const uint8_t * salt, + size_t saltlen, uint64_t c, uint8_t * buf, size_t dkLen) +{ + crypto_auth_hmacsha256_state PShctx, hctx; + size_t i; + uint8_t ivec[4]; + uint8_t U[32]; + uint8_t T[32]; + uint64_t j; + int k; + size_t clen; + + crypto_auth_hmacsha256_init(&PShctx, passwd, passwdlen); + crypto_auth_hmacsha256_update(&PShctx, salt, saltlen); + + for (i = 0; i * 32 < dkLen; i++) { + be32enc(ivec, (uint32_t)(i + 1)); + memcpy(&hctx, &PShctx, sizeof(crypto_auth_hmacsha256_state)); + crypto_auth_hmacsha256_update(&hctx, ivec, 4); + crypto_auth_hmacsha256_final(&hctx, U); + + memcpy(T, U, 32); + /* LCOV_EXCL_START */ + for (j = 2; j <= c; j++) { + crypto_auth_hmacsha256_init(&hctx, passwd, passwdlen); + crypto_auth_hmacsha256_update(&hctx, U, 32); + crypto_auth_hmacsha256_final(&hctx, U); + + for (k = 0; k < 32; k++) { + T[k] ^= U[k]; + } + } + /* LCOV_EXCL_STOP */ + + clen = dkLen - i * 32; + if (clen > 32) { + clen = 32; + } + memcpy(&buf[i * 32], T, clen); + } + sodium_memzero((void *) &PShctx, sizeof PShctx); +} |