Diff: wolfcrypt/src/wc_encrypt.c

Revision:

17:ff9d1e86ad5f

Parent:

16:048e5e270a58

--- a/wolfcrypt/src/wc_encrypt.c	Tue Nov 19 14:32:16 2019 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,606 +0,0 @@
-/* wc_encrypt.c
- *
- * Copyright (C) 2006-2017 wolfSSL Inc.
- *
- * This file is part of wolfSSL.
- *
- * wolfSSL is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * wolfSSL is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
- */
-
-
-#ifdef HAVE_CONFIG_H
-    #include <config.h>
-#endif
-
-#include <wolfssl/wolfcrypt/settings.h>
-#include <wolfssl/wolfcrypt/aes.h>
-#include <wolfssl/wolfcrypt/des3.h>
-#include <wolfssl/wolfcrypt/hash.h>
-#include <wolfssl/wolfcrypt/arc4.h>
-#include <wolfssl/wolfcrypt/wc_encrypt.h>
-#include <wolfssl/wolfcrypt/error-crypt.h>
-#include <wolfssl/wolfcrypt/asn.h>
-#include <wolfssl/wolfcrypt/coding.h>
-#include <wolfssl/wolfcrypt/pwdbased.h>
-#include <wolfssl/wolfcrypt/logging.h>
-
-#ifdef NO_INLINE
-    #include <wolfssl/wolfcrypt/misc.h>
-#else
-    #define WOLFSSL_MISC_INCLUDED
-    #include <wolfcrypt/src/misc.c>
-#endif
-
-#if !defined(NO_AES) && defined(HAVE_AES_CBC)
-#ifdef HAVE_AES_DECRYPT
-int wc_AesCbcDecryptWithKey(byte* out, const byte* in, word32 inSz,
-                                  const byte* key, word32 keySz, const byte* iv)
-{
-    int  ret = 0;
-#ifdef WOLFSSL_SMALL_STACK
-    Aes* aes = NULL;
-#else
-    Aes  aes[1];
-#endif
-
-    if (out == NULL || in == NULL || key == NULL || iv == NULL) {
-        return BAD_FUNC_ARG;
-    }
-
-#ifdef WOLFSSL_SMALL_STACK
-    aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
-    if (aes == NULL)
-        return MEMORY_E;
-#endif
-
-    ret = wc_AesInit(aes, NULL, INVALID_DEVID);
-    if (ret == 0) {
-        ret = wc_AesSetKey(aes, key, keySz, iv, AES_DECRYPTION);
-        if (ret == 0)
-            ret = wc_AesCbcDecrypt(aes, out, in, inSz);
-
-        wc_AesFree(aes);
-    }
-
-#ifdef WOLFSSL_SMALL_STACK
-    XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-
-    return ret;
-}
-#endif /* HAVE_AES_DECRYPT */
-
-int wc_AesCbcEncryptWithKey(byte* out, const byte* in, word32 inSz,
-                            const byte* key, word32 keySz, const byte* iv)
-{
-    int  ret = 0;
-#ifdef WOLFSSL_SMALL_STACK
-    Aes* aes = NULL;
-#else
-    Aes  aes[1];
-#endif
-
-#ifdef WOLFSSL_SMALL_STACK
-    aes = (Aes*)XMALLOC(sizeof(Aes), NULL, DYNAMIC_TYPE_TMP_BUFFER);
-    if (aes == NULL)
-        return MEMORY_E;
-#endif
-
-    ret = wc_AesInit(aes, NULL, INVALID_DEVID);
-    if (ret == 0) {
-        ret = wc_AesSetKey(aes, key, keySz, iv, AES_ENCRYPTION);
-        if (ret == 0)
-            ret = wc_AesCbcEncrypt(aes, out, in, inSz);
-
-        wc_AesFree(aes);
-    }
-
-#ifdef WOLFSSL_SMALL_STACK
-    XFREE(aes, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-
-    return ret;
-}
-#endif /* !NO_AES && HAVE_AES_CBC */
-
-
-#ifndef NO_DES3
-int wc_Des_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
-                             const byte* key, const byte* iv)
-{
-    int ret  = 0;
-#ifdef WOLFSSL_SMALL_STACK
-    Des* des = NULL;
-#else
-    Des  des[1];
-#endif
-
-#ifdef WOLFSSL_SMALL_STACK
-    des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
-    if (des == NULL)
-        return MEMORY_E;
-#endif
-
-    ret = wc_Des_SetKey(des, key, iv, DES_ENCRYPTION);
-    if (ret == 0)
-        ret = wc_Des_CbcEncrypt(des, out, in, sz);
-
-#ifdef WOLFSSL_SMALL_STACK
-    XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-
-    return ret;
-}
-
-int wc_Des_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
-                             const byte* key, const byte* iv)
-{
-    int ret  = 0;
-#ifdef WOLFSSL_SMALL_STACK
-    Des* des = NULL;
-#else
-    Des  des[1];
-#endif
-
-#ifdef WOLFSSL_SMALL_STACK
-    des = (Des*)XMALLOC(sizeof(Des), NULL, DYNAMIC_TYPE_TMP_BUFFER);
-    if (des == NULL)
-        return MEMORY_E;
-#endif
-
-    ret = wc_Des_SetKey(des, key, iv, DES_DECRYPTION);
-    if (ret == 0)
-        ret = wc_Des_CbcDecrypt(des, out, in, sz);
-
-#ifdef WOLFSSL_SMALL_STACK
-    XFREE(des, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-
-    return ret;
-}
-
-
-int wc_Des3_CbcEncryptWithKey(byte* out, const byte* in, word32 sz,
-                              const byte* key, const byte* iv)
-{
-    int ret    = 0;
-#ifdef WOLFSSL_SMALL_STACK
-    Des3* des3 = NULL;
-#else
-    Des3  des3[1];
-#endif
-
-#ifdef WOLFSSL_SMALL_STACK
-    des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
-    if (des3 == NULL)
-        return MEMORY_E;
-#endif
-
-    ret = wc_Des3Init(des3, NULL, INVALID_DEVID);
-    if (ret == 0) {
-        ret = wc_Des3_SetKey(des3, key, iv, DES_ENCRYPTION);
-        if (ret == 0)
-            ret = wc_Des3_CbcEncrypt(des3, out, in, sz);
-        wc_Des3Free(des3);
-    }
-
-#ifdef WOLFSSL_SMALL_STACK
-    XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-
-    return ret;
-}
-
-
-int wc_Des3_CbcDecryptWithKey(byte* out, const byte* in, word32 sz,
-                              const byte* key, const byte* iv)
-{
-    int ret    = 0;
-#ifdef WOLFSSL_SMALL_STACK
-    Des3* des3 = NULL;
-#else
-    Des3  des3[1];
-#endif
-
-#ifdef WOLFSSL_SMALL_STACK
-    des3 = (Des3*)XMALLOC(sizeof(Des3), NULL, DYNAMIC_TYPE_TMP_BUFFER);
-    if (des3 == NULL)
-        return MEMORY_E;
-#endif
-
-    ret = wc_Des3Init(des3, NULL, INVALID_DEVID);
-    if (ret == 0) {
-        ret = wc_Des3_SetKey(des3, key, iv, DES_DECRYPTION);
-        if (ret == 0)
-            ret = wc_Des3_CbcDecrypt(des3, out, in, sz);
-        wc_Des3Free(des3);
-    }
-
-#ifdef WOLFSSL_SMALL_STACK
-    XFREE(des3, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-
-    return ret;
-}
-
-#endif /* !NO_DES3 */
-
-
-#ifdef WOLFSSL_ENCRYPTED_KEYS
-
-int wc_BufferKeyDecrypt(EncryptedInfo* info, byte* der, word32 derSz,
-    const byte* password, int passwordSz, int hashType)
-{
-    int ret = NOT_COMPILED_IN;
-#ifdef WOLFSSL_SMALL_STACK
-    byte* key      = NULL;
-#else
-    byte  key[WC_MAX_SYM_KEY_SIZE];
-#endif
-
-    (void)derSz;
-    (void)passwordSz;
-    (void)hashType;
-
-    if (der == NULL || password == NULL || info == NULL || info->keySz == 0) {
-        return BAD_FUNC_ARG;
-    }
-
-    /* use file's salt for key derivation, hex decode first */
-    if (Base16_Decode(info->iv, info->ivSz, info->iv, &info->ivSz) != 0) {
-        return BUFFER_E;
-    }
-    if (info->ivSz < PKCS5_SALT_SZ)
-        return BUFFER_E;
-
-#ifdef WOLFSSL_SMALL_STACK
-    key = (byte*)XMALLOC(WC_MAX_SYM_KEY_SIZE, NULL, DYNAMIC_TYPE_SYMETRIC_KEY);
-    if (key == NULL) {
-        return MEMORY_E;
-    }
-#endif
-
-#ifndef NO_PWDBASED
-    if ((ret = wc_PBKDF1(key, password, passwordSz, info->iv, PKCS5_SALT_SZ, 1,
-                                        info->keySz, hashType)) != 0) {
-#ifdef WOLFSSL_SMALL_STACK
-        XFREE(key, NULL, DYNAMIC_TYPE_SYMETRIC_KEY);
-#endif
-        return ret;
-    }
-#endif
-
-#ifndef NO_DES3
-    if (info->cipherType == WC_CIPHER_DES)
-        ret = wc_Des_CbcDecryptWithKey(der, der, derSz, key, info->iv);
-    if (info->cipherType == WC_CIPHER_DES3)
-        ret = wc_Des3_CbcDecryptWithKey(der, der, derSz, key, info->iv);
-#endif /* NO_DES3 */
-#if !defined(NO_AES) && defined(HAVE_AES_CBC) && defined(HAVE_AES_DECRYPT)
-    if (info->cipherType == WC_CIPHER_AES_CBC)
-        ret = wc_AesCbcDecryptWithKey(der, der, derSz, key, info->keySz,
-            info->iv);
-#endif /* !NO_AES && HAVE_AES_CBC && HAVE_AES_DECRYPT */
-
-#ifdef WOLFSSL_SMALL_STACK
-    XFREE(key, NULL, DYNAMIC_TYPE_SYMETRIC_KEY);
-#endif
-
-    return ret;
-}
-
-int wc_BufferKeyEncrypt(EncryptedInfo* info, byte* der, word32 derSz,
-    const byte* password, int passwordSz, int hashType)
-{
-    int ret = NOT_COMPILED_IN;
-#ifdef WOLFSSL_SMALL_STACK
-    byte* key      = NULL;
-#else
-    byte  key[WC_MAX_SYM_KEY_SIZE];
-#endif
-
-    (void)derSz;
-    (void)passwordSz;
-    (void)hashType;
-
-    if (der == NULL || password == NULL || info == NULL || info->keySz == 0 ||
-            info->ivSz < PKCS5_SALT_SZ) {
-        return BAD_FUNC_ARG;
-    }
-
-#ifdef WOLFSSL_SMALL_STACK
-    key = (byte*)XMALLOC(WC_MAX_SYM_KEY_SIZE, NULL, DYNAMIC_TYPE_SYMETRIC_KEY);
-    if (key == NULL) {
-        return MEMORY_E;
-    }
-#endif /* WOLFSSL_SMALL_STACK */
-
-#ifndef NO_PWDBASED
-    if ((ret = wc_PBKDF1(key, password, passwordSz, info->iv, PKCS5_SALT_SZ, 1,
-                                        info->keySz, hashType)) != 0) {
-#ifdef WOLFSSL_SMALL_STACK
-        XFREE(key, NULL, DYNAMIC_TYPE_SYMETRIC_KEY);
-#endif
-        return ret;
-    }
-#endif
-
-#ifndef NO_DES3
-    if (info->cipherType == WC_CIPHER_DES)
-        ret = wc_Des_CbcEncryptWithKey(der, der, derSz, key, info->iv);
-    if (info->cipherType == WC_CIPHER_DES3)
-        ret = wc_Des3_CbcEncryptWithKey(der, der, derSz, key, info->iv);
-#endif /* NO_DES3 */
-#ifndef NO_AES
-    if (info->cipherType == WC_CIPHER_AES_CBC)
-        ret = wc_AesCbcEncryptWithKey(der, der, derSz, key, info->keySz,
-            info->iv);
-#endif /* NO_AES */
-
-#ifdef WOLFSSL_SMALL_STACK
-    XFREE(key, NULL, DYNAMIC_TYPE_SYMETRIC_KEY);
-#endif
-
-    return ret;
-}
-
-#endif /* WOLFSSL_ENCRYPTED_KEYS */
-
-
-#ifndef NO_PWDBASED
-
-/* Decrypt/Encrypt input in place from parameters based on id
- *
- * returns a negative value on fail case
- */
-int wc_CryptKey(const char* password, int passwordSz, byte* salt,
-                      int saltSz, int iterations, int id, byte* input,
-                      int length, int version, byte* cbcIv, int enc)
-{
-    int typeH;
-    int derivedLen;
-    int ret = 0;
-#ifdef WOLFSSL_SMALL_STACK
-    byte* key;
-#else
-    byte key[MAX_KEY_SIZE];
-#endif
-
-    (void)input;
-    (void)length;
-    (void)enc;
-
-    WOLFSSL_ENTER("wc_CryptKey");
-
-    switch (id) {
-    #ifndef NO_DES3
-        #ifndef NO_MD5
-        case PBE_MD5_DES:
-            typeH = WC_MD5;
-            derivedLen = 16;           /* may need iv for v1.5 */
-            break;
-        #endif
-        #ifndef NO_SHA
-        case PBE_SHA1_DES:
-            typeH = WC_SHA;
-            derivedLen = 16;           /* may need iv for v1.5 */
-            break;
-
-        case PBE_SHA1_DES3:
-            typeH = WC_SHA;
-            derivedLen = 32;           /* may need iv for v1.5 */
-            break;
-        #endif /* !NO_SHA */
-    #endif /* !NO_DES3 */
-    #if !defined(NO_SHA) && !defined(NO_RC4)
-        case PBE_SHA1_RC4_128:
-            typeH = WC_SHA;
-            derivedLen = 16;
-            break;
-    #endif
-    #ifdef WOLFSSL_AES_256
-        case PBE_AES256_CBC:
-            typeH = WC_SHA256;
-            derivedLen = 32;
-            break;
-    #endif
-        default:
-            WOLFSSL_MSG("Unknown/Unsupported encrypt/decrypt id");
-            return ALGO_ID_E;
-    }
-
-#ifdef WOLFSSL_SMALL_STACK
-    key = (byte*)XMALLOC(MAX_KEY_SIZE, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-    if (key == NULL)
-        return MEMORY_E;
-#endif
-
-    if (version == PKCS5v2)
-        ret = wc_PBKDF2(key, (byte*)password, passwordSz,
-                        salt, saltSz, iterations, derivedLen, typeH);
-#ifndef NO_SHA
-    else if (version == PKCS5)
-        ret = wc_PBKDF1(key, (byte*)password, passwordSz,
-                        salt, saltSz, iterations, derivedLen, typeH);
-#endif
-    else if (version == PKCS12v1) {
-        int  i, idx = 0;
-        byte unicodePasswd[MAX_UNICODE_SZ];
-
-        if ( (passwordSz * 2 + 2) > (int)sizeof(unicodePasswd)) {
-#ifdef WOLFSSL_SMALL_STACK
-            XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-            return UNICODE_SIZE_E;
-        }
-
-        for (i = 0; i < passwordSz; i++) {
-            unicodePasswd[idx++] = 0x00;
-            unicodePasswd[idx++] = (byte)password[i];
-        }
-        /* add trailing NULL */
-        unicodePasswd[idx++] = 0x00;
-        unicodePasswd[idx++] = 0x00;
-
-        ret =  wc_PKCS12_PBKDF(key, unicodePasswd, idx, salt, saltSz,
-                            iterations, derivedLen, typeH, 1);
-        if (id != PBE_SHA1_RC4_128)
-            ret += wc_PKCS12_PBKDF(cbcIv, unicodePasswd, idx, salt, saltSz,
-                                iterations, 8, typeH, 2);
-    }
-    else {
-#ifdef WOLFSSL_SMALL_STACK
-        XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-        WOLFSSL_MSG("Unknown/Unsupported PKCS version");
-        return ALGO_ID_E;
-    }
-
-    if (ret != 0) {
-#ifdef WOLFSSL_SMALL_STACK
-        XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-        return ret;
-    }
-
-    switch (id) {
-#ifndef NO_DES3
-    #if !defined(NO_SHA) || !defined(NO_MD5)
-        case PBE_MD5_DES:
-        case PBE_SHA1_DES:
-        {
-            Des    des;
-            byte*  desIv = key + 8;
-
-            if (version == PKCS5v2 || version == PKCS12v1)
-                desIv = cbcIv;
-
-            if (enc) {
-                ret = wc_Des_SetKey(&des, key, desIv, DES_ENCRYPTION);
-            }
-            else {
-                ret = wc_Des_SetKey(&des, key, desIv, DES_DECRYPTION);
-            }
-            if (ret != 0) {
-#ifdef WOLFSSL_SMALL_STACK
-                XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-                return ret;
-            }
-
-            if (enc) {
-                wc_Des_CbcEncrypt(&des, input, input, length);
-            }
-            else {
-                wc_Des_CbcDecrypt(&des, input, input, length);
-            }
-            break;
-        }
-    #endif /* !NO_SHA || !NO_MD5 */
-
-    #ifndef NO_SHA
-        case PBE_SHA1_DES3:
-        {
-            Des3   des;
-            byte*  desIv = key + 24;
-
-            if (version == PKCS5v2 || version == PKCS12v1)
-                desIv = cbcIv;
-
-            ret = wc_Des3Init(&des, NULL, INVALID_DEVID);
-            if (ret != 0) {
-#ifdef WOLFSSL_SMALL_STACK
-                XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-                return ret;
-            }
-            if (enc) {
-                ret = wc_Des3_SetKey(&des, key, desIv, DES_ENCRYPTION);
-            }
-            else {
-                ret = wc_Des3_SetKey(&des, key, desIv, DES_DECRYPTION);
-            }
-            if (ret != 0) {
-#ifdef WOLFSSL_SMALL_STACK
-                XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-                return ret;
-            }
-            if (enc) {
-                ret = wc_Des3_CbcEncrypt(&des, input, input, length);
-            }
-            else {
-                ret = wc_Des3_CbcDecrypt(&des, input, input, length);
-            }
-            if (ret != 0) {
-#ifdef WOLFSSL_SMALL_STACK
-                XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-                return ret;
-            }
-            break;
-        }
-    #endif /* !NO_SHA */
-#endif
-#if !defined(NO_RC4) && !defined(NO_SHA)
-        case PBE_SHA1_RC4_128:
-        {
-            Arc4    dec;
-
-            wc_Arc4SetKey(&dec, key, derivedLen);
-            wc_Arc4Process(&dec, input, input, length);
-            break;
-        }
-#endif
-#ifndef NO_AES
-    #ifdef WOLFSSL_AES_256
-        case PBE_AES256_CBC:
-        {
-            Aes dec;
-            ret = wc_AesInit(&dec, NULL, INVALID_DEVID);
-            if (ret == 0)
-                ret = wc_AesSetKey(&dec, key, derivedLen,
-                                   cbcIv, AES_DECRYPTION);
-            if (ret == 0)
-                ret = wc_AesCbcDecrypt(&dec, input, input, length);
-            if (ret != 0) {
-#ifdef WOLFSSL_SMALL_STACK
-                XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-                return ret;
-            }
-            ForceZero(&dec, sizeof(Aes));
-            break;
-        }
-    #endif /* WOLFSSL_AES_256 */
-#endif
-
-        default:
-#ifdef WOLFSSL_SMALL_STACK
-            XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-            WOLFSSL_MSG("Unknown/Unsupported encrypt/decryption algorithm");
-            return ALGO_ID_E;
-    }
-
-#ifdef WOLFSSL_SMALL_STACK
-    XFREE(key, NULL, DYNAMIC_TYPE_TMP_BUFFER);
-#endif
-
-    return ret;
-}
-
-#endif /* !NO_PWDBASED */
-