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https://github.com/FreeRTOS/FreeRTOS-Kernel.git
synced 2025-09-06 14:17:41 -04:00
Add FreeRTOS-Plus directory with new directory structure so it matches the FreeRTOS directory.
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Richard Barry
parent
80f7e8cdd4
commit
64a3ab321a
528 changed files with 228252 additions and 0 deletions
319
FreeRTOS-Plus/Source/CyaSSL/ctaocrypt/src/pwdbased.c
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319
FreeRTOS-Plus/Source/CyaSSL/ctaocrypt/src/pwdbased.c
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/* pwdbased.c
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*
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* Copyright (C) 2006-2012 Sawtooth Consulting Ltd.
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*
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* This file is part of CyaSSL.
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*
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* CyaSSL is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* CyaSSL is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
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*/
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#ifdef HAVE_CONFIG_H
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#include <config.h>
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#endif
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#ifndef NO_PWDBASED
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#include <cyassl/ctaocrypt/pwdbased.h>
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#include <cyassl/ctaocrypt/hmac.h>
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#include <cyassl/ctaocrypt/integer.h>
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#include <cyassl/ctaocrypt/error.h>
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#ifdef CYASSL_SHA512
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#include <cyassl/ctaocrypt/sha512.h>
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#endif
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#ifdef NO_INLINE
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#include <cyassl/ctaocrypt/misc.h>
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#else
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#include <ctaocrypt/src/misc.c>
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#endif
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#ifndef min
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static INLINE word32 min(word32 a, word32 b)
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{
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return a > b ? b : a;
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}
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#endif /* min */
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int PBKDF1(byte* output, const byte* passwd, int pLen, const byte* salt,
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int sLen, int iterations, int kLen, int hashType)
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{
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Md5 md5;
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Sha sha;
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int hLen = (hashType == MD5) ? MD5_DIGEST_SIZE : SHA_DIGEST_SIZE;
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int i;
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byte buffer[SHA_DIGEST_SIZE]; /* max size */
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if (hashType != MD5 && hashType != SHA)
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return BAD_FUNC_ARG;
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if (kLen > hLen)
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return BAD_FUNC_ARG;
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if (iterations < 1)
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return BAD_FUNC_ARG;
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if (hashType == MD5) {
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InitMd5(&md5);
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Md5Update(&md5, passwd, pLen);
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Md5Update(&md5, salt, sLen);
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Md5Final(&md5, buffer);
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}
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else {
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InitSha(&sha);
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ShaUpdate(&sha, passwd, pLen);
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ShaUpdate(&sha, salt, sLen);
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ShaFinal(&sha, buffer);
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}
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for (i = 1; i < iterations; i++) {
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if (hashType == MD5) {
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Md5Update(&md5, buffer, hLen);
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Md5Final(&md5, buffer);
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}
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else {
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ShaUpdate(&sha, buffer, hLen);
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ShaFinal(&sha, buffer);
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}
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}
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XMEMCPY(output, buffer, kLen);
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return 0;
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}
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int PBKDF2(byte* output, const byte* passwd, int pLen, const byte* salt,
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int sLen, int iterations, int kLen, int hashType)
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{
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word32 i = 1;
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int hLen;
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int j;
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Hmac hmac;
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byte buffer[INNER_HASH_SIZE]; /* max size */
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if (hashType == MD5) {
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hLen = MD5_DIGEST_SIZE;
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}
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else if (hashType == SHA) {
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hLen = SHA_DIGEST_SIZE;
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}
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#ifndef NO_SHA256
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else if (hashType == SHA256) {
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hLen = SHA256_DIGEST_SIZE;
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}
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#endif
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#ifdef CYASSL_SHA512
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else if (hashType == SHA512) {
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hLen = SHA512_DIGEST_SIZE;
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}
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#endif
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else
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return BAD_FUNC_ARG;
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HmacSetKey(&hmac, hashType, passwd, pLen);
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while (kLen) {
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int currentLen;
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HmacUpdate(&hmac, salt, sLen);
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/* encode i */
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for (j = 0; j < 4; j++) {
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byte b = (byte)(i >> ((3-j) * 8));
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HmacUpdate(&hmac, &b, 1);
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}
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HmacFinal(&hmac, buffer);
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currentLen = min(kLen, hLen);
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XMEMCPY(output, buffer, currentLen);
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for (j = 1; j < iterations; j++) {
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HmacUpdate(&hmac, buffer, hLen);
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HmacFinal(&hmac, buffer);
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xorbuf(output, buffer, currentLen);
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}
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output += currentLen;
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kLen -= currentLen;
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i++;
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}
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return 0;
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}
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int PKCS12_PBKDF(byte* output, const byte* passwd, int passLen,const byte* salt,
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int saltLen, int iterations, int kLen, int hashType, int id)
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{
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/* all in bytes instead of bits */
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word32 u, v, dLen, pLen, iLen, sLen, totalLen;
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int dynamic = 0;
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int ret = 0;
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int i;
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byte *D, *S, *P, *I;
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byte staticBuffer[1024];
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byte* buffer = staticBuffer;
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#ifdef CYASSL_SHA512
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byte Ai[SHA512_DIGEST_SIZE];
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byte B[SHA512_BLOCK_SIZE];
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#elif !defined(NO_SHA256)
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byte Ai[SHA256_DIGEST_SIZE];
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byte B[SHA256_BLOCK_SIZE];
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#else
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byte Ai[SHA_DIGEST_SIZE];
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byte B[SHA_BLOCK_SIZE];
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#endif
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if (!iterations)
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iterations = 1;
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if (hashType == MD5) {
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v = MD5_BLOCK_SIZE;
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u = MD5_DIGEST_SIZE;
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}
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else if (hashType == SHA) {
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v = SHA_BLOCK_SIZE;
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u = SHA_DIGEST_SIZE;
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}
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#ifndef NO_SHA256
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else if (hashType == SHA256) {
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v = SHA256_BLOCK_SIZE;
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u = SHA256_DIGEST_SIZE;
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}
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#endif
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#ifdef CYASSL_SHA512
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else if (hashType == SHA512) {
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v = SHA512_BLOCK_SIZE;
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u = SHA512_DIGEST_SIZE;
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}
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#endif
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else
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return BAD_FUNC_ARG;
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dLen = v;
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sLen = v * ((saltLen + v - 1) / v);
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if (passLen)
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pLen = v * ((passLen + v - 1) / v);
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else
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pLen = 0;
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iLen = sLen + pLen;
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totalLen = dLen + sLen + pLen;
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if (totalLen > sizeof(staticBuffer)) {
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buffer = (byte*)XMALLOC(totalLen, 0, DYNAMIC_TYPE_KEY);
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if (buffer == NULL) return MEMORY_E;
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dynamic = 1;
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}
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D = buffer;
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S = D + dLen;
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P = S + sLen;
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I = S;
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XMEMSET(D, id, dLen);
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for (i = 0; i < (int)sLen; i++)
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S[i] = salt[i % saltLen];
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for (i = 0; i < (int)pLen; i++)
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P[i] = passwd[i % passLen];
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while (kLen > 0) {
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word32 currentLen;
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mp_int B1;
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if (hashType == MD5) {
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}
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else if (hashType == SHA) {
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Sha sha;
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InitSha(&sha);
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ShaUpdate(&sha, buffer, totalLen);
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ShaFinal(&sha, Ai);
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for (i = 1; i < iterations; i++) {
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ShaUpdate(&sha, Ai, u);
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ShaFinal(&sha, Ai);
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}
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}
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#ifndef NO_SHA256
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else if (hashType == SHA256) {
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}
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#endif
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#ifdef CYASSL_SHA512
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else if (hashType == SHA512) {
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}
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#endif
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for (i = 0; i < (int)v; i++)
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B[i] = Ai[i % u];
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mp_init(&B1);
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if (mp_read_unsigned_bin(&B1, B, v) != MP_OKAY)
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ret = MP_READ_E;
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else if (mp_add_d(&B1, (mp_digit)1, &B1) != MP_OKAY) {
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ret = MP_ADD_E;
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mp_clear(&B1);
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break;
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}
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for (i = 0; i < (int)iLen; i += v) {
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int outSz;
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mp_int i1;
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mp_int res;
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mp_init(&i1);
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mp_init(&res);
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if (mp_read_unsigned_bin(&i1, I + i, v) != MP_OKAY)
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ret = MP_READ_E;
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else if (mp_add(&i1, &B1, &res) != MP_OKAY)
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ret = MP_ADD_E;
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else if ( (outSz = mp_unsigned_bin_size(&res)) < 0)
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ret = MP_TO_E;
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else {
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if (outSz > (int)v) {
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/* take off MSB */
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byte tmp[129];
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mp_to_unsigned_bin(&res, tmp);
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XMEMCPY(I + i, tmp + 1, v);
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}
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else if (outSz < (int)v) {
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XMEMSET(I + i, 0, v - outSz);
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mp_to_unsigned_bin(&res, I + i + v - outSz);
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}
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else
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mp_to_unsigned_bin(&res, I + i);
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}
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mp_clear(&i1);
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mp_clear(&res);
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if (ret < 0) break;
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}
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currentLen = min(kLen, (int)u);
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XMEMCPY(output, Ai, currentLen);
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output += currentLen;
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kLen -= currentLen;
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mp_clear(&B1);
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}
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if (dynamic) XFREE(buffer, 0, DYNAMIC_TYPE_KEY);
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return ret;
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}
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#endif /* NO_PWDBASED */
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