Diff: wolfcrypt/src/hash.c

Revision:

13:f67a6c6013ca

Parent:

11:cee25a834751

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/wolfcrypt/src/hash.c	Tue Aug 22 10:48:22 2017 +0000
@@ -0,0 +1,592 @@
+/* hash.c
+ *
+ * Copyright (C) 2006-2016 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/logging.h>
+#include <wolfssl/wolfcrypt/error-crypt.h>
+#ifndef NO_ASN
+#include <wolfssl/wolfcrypt/asn.h>
+#endif
+
+#include <wolfssl/wolfcrypt/hash.h>
+
+
+#if !defined(NO_ASN) || !defined(NO_DH) || defined(HAVE_ECC)
+
+#ifdef NO_ASN
+enum Hash_Sum  {
+    MD2h    = 646,
+    MD5h    = 649,
+    SHAh    =  88,
+    SHA224h = 417,
+    SHA256h = 414,
+    SHA384h = 415,
+    SHA512h = 416
+};
+#endif
+
+int wc_HashGetOID(enum wc_HashType hash_type)
+{
+    int oid = HASH_TYPE_E; /* Default to hash type error */
+    switch(hash_type)
+    {
+        case WC_HASH_TYPE_MD2:
+        #ifdef WOLFSSL_MD2
+            oid = MD2h;
+        #endif
+            break;
+        case WC_HASH_TYPE_MD5_SHA:
+        case WC_HASH_TYPE_MD5:
+        #ifndef NO_MD5
+            oid = MD5h;
+        #endif
+            break;
+        case WC_HASH_TYPE_SHA:
+        #ifndef NO_SHA
+            oid = SHAh;
+        #endif
+            break;
+        case WC_HASH_TYPE_SHA224:
+        #if defined(WOLFSSL_SHA224)
+            oid = SHA224h;
+        #endif
+            break;
+        case WC_HASH_TYPE_SHA256:
+        #ifndef NO_SHA256
+            oid = SHA256h;
+        #endif
+            break;
+        case WC_HASH_TYPE_SHA384:
+        #if defined(WOLFSSL_SHA512) && defined(WOLFSSL_SHA384)
+            oid = SHA384h;
+        #endif
+            break;
+        case WC_HASH_TYPE_SHA512:
+        #ifdef WOLFSSL_SHA512
+            oid = SHA512h;
+        #endif
+            break;
+
+        /* Not Supported */
+        case WC_HASH_TYPE_MD4:
+        case WC_HASH_TYPE_NONE:
+        default:
+            oid = BAD_FUNC_ARG;
+            break;
+    }
+    return oid;
+}
+#endif
+
+/* Get Hash digest size */
+int wc_HashGetDigestSize(enum wc_HashType hash_type)
+{
+    int dig_size = HASH_TYPE_E; /* Default to hash type error */
+    switch(hash_type)
+    {
+        case WC_HASH_TYPE_MD5:
+#ifndef NO_MD5
+            dig_size = MD5_DIGEST_SIZE;
+#endif
+            break;
+        case WC_HASH_TYPE_SHA:
+#ifndef NO_SHA
+            dig_size = SHA_DIGEST_SIZE;
+#endif
+            break;
+        case WC_HASH_TYPE_SHA224:
+#ifdef WOLFSSL_SHA224
+            dig_size = SHA224_DIGEST_SIZE;
+#endif
+            break;
+        case WC_HASH_TYPE_SHA256:
+#ifndef NO_SHA256
+            dig_size = SHA256_DIGEST_SIZE;
+#endif
+            break;
+        case WC_HASH_TYPE_SHA384:
+#if defined(WOLFSSL_SHA512) && defined(WOLFSSL_SHA384)
+            dig_size = SHA384_DIGEST_SIZE;
+#endif
+            break;
+        case WC_HASH_TYPE_SHA512:
+#ifdef WOLFSSL_SHA512
+            dig_size = SHA512_DIGEST_SIZE;
+#endif
+            break;
+        case WC_HASH_TYPE_MD5_SHA:
+#if !defined(NO_MD5) && !defined(NO_SHA)
+            dig_size = MD5_DIGEST_SIZE + SHA_DIGEST_SIZE;
+#endif
+            break;
+
+        /* Not Supported */
+        case WC_HASH_TYPE_MD2:
+        case WC_HASH_TYPE_MD4:
+        case WC_HASH_TYPE_NONE:
+        default:
+            dig_size = BAD_FUNC_ARG;
+            break;
+    }
+    return dig_size;
+}
+
+/* Generic Hashing Wrapper */
+int wc_Hash(enum wc_HashType hash_type, const byte* data,
+    word32 data_len, byte* hash, word32 hash_len)
+{
+    int ret = HASH_TYPE_E; /* Default to hash type error */
+    word32 dig_size;
+
+    /* Validate hash buffer size */
+    dig_size = wc_HashGetDigestSize(hash_type);
+    if (hash_len < dig_size) {
+        return BUFFER_E;
+    }
+
+    /* Suppress possible unused arg if all hashing is disabled */
+    (void)data;
+    (void)data_len;
+    (void)hash;
+    (void)hash_len;
+
+    switch(hash_type)
+    {
+        case WC_HASH_TYPE_MD5:
+#ifndef NO_MD5
+            ret = wc_Md5Hash(data, data_len, hash);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA:
+#ifndef NO_SHA
+            ret = wc_ShaHash(data, data_len, hash);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA224:
+#ifdef WOLFSSL_SHA224
+            ret = wc_Sha224Hash(data, data_len, hash);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA256:
+#ifndef NO_SHA256
+            ret = wc_Sha256Hash(data, data_len, hash);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA384:
+#if defined(WOLFSSL_SHA512) && defined(WOLFSSL_SHA384)
+            ret = wc_Sha384Hash(data, data_len, hash);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA512:
+#ifdef WOLFSSL_SHA512
+            ret = wc_Sha512Hash(data, data_len, hash);
+#endif
+            break;
+        case WC_HASH_TYPE_MD5_SHA:
+#if !defined(NO_MD5) && !defined(NO_SHA)
+            ret = wc_Md5Hash(data, data_len, hash);
+            if (ret == 0) {
+                ret = wc_ShaHash(data, data_len, &hash[MD5_DIGEST_SIZE]);
+            }
+#endif
+            break;
+
+        /* Not Supported */
+        case WC_HASH_TYPE_MD2:
+        case WC_HASH_TYPE_MD4:
+        case WC_HASH_TYPE_NONE:
+        default:
+            ret = BAD_FUNC_ARG;
+            break;
+    }
+    return ret;
+}
+
+int wc_HashInit(wc_HashAlg* hash, enum wc_HashType type)
+{
+    int ret = HASH_TYPE_E; /* Default to hash type error */
+
+    if (hash == NULL)
+        return BAD_FUNC_ARG;
+
+    switch (type) {
+        case WC_HASH_TYPE_MD5:
+#ifndef NO_MD5
+            wc_InitMd5(&hash->md5);
+            ret = 0;
+#endif
+            break;
+        case WC_HASH_TYPE_SHA:
+#ifndef NO_SHA
+            ret = wc_InitSha(&hash->sha);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA224:
+#ifdef WOLFSSL_SHA224
+            ret = wc_InitSha224(&hash->sha224);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA256:
+#ifndef NO_SHA256
+            ret = wc_InitSha256(&hash->sha256);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA384:
+#ifdef WOLFSSL_SHA384
+            ret = wc_InitSha384(&hash->sha384);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA512:
+#ifdef WOLFSSL_SHA512
+            ret = wc_InitSha512(&hash->sha512);
+#endif
+            break;
+
+        /* not supported */
+        case WC_HASH_TYPE_MD5_SHA:
+        case WC_HASH_TYPE_MD2:
+        case WC_HASH_TYPE_MD4:
+        case WC_HASH_TYPE_NONE:
+        default:
+            ret = BAD_FUNC_ARG;
+    };
+
+    return ret;
+}
+
+int wc_HashUpdate(wc_HashAlg* hash, enum wc_HashType type, const byte* data,
+                  word32 dataSz)
+{
+    int ret = HASH_TYPE_E; /* Default to hash type error */
+
+    if (hash == NULL || data == NULL)
+        return BAD_FUNC_ARG;
+
+    switch (type) {
+        case WC_HASH_TYPE_MD5:
+#ifndef NO_MD5
+            wc_Md5Update(&hash->md5, data, dataSz);
+            ret = 0;
+#endif
+            break;
+        case WC_HASH_TYPE_SHA:
+#ifndef NO_SHA
+            ret = wc_ShaUpdate(&hash->sha, data, dataSz);
+            if (ret != 0)
+                return ret;
+#endif
+            break;
+        case WC_HASH_TYPE_SHA224:
+#ifdef WOLFSSL_SHA224
+            ret = wc_Sha224Update(&hash->sha224, data, dataSz);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA256:
+#ifndef NO_SHA256
+            ret = wc_Sha256Update(&hash->sha256, data, dataSz);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA384:
+#ifdef WOLFSSL_SHA384
+            ret = wc_Sha384Update(&hash->sha384, data, dataSz);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA512:
+#ifdef WOLFSSL_SHA512
+            ret = wc_Sha512Update(&hash->sha512, data, dataSz);
+#endif
+            break;
+
+        /* not supported */
+        case WC_HASH_TYPE_MD5_SHA:
+        case WC_HASH_TYPE_MD2:
+        case WC_HASH_TYPE_MD4:
+        case WC_HASH_TYPE_NONE:
+        default:
+            ret = BAD_FUNC_ARG;
+    };
+
+    return ret;
+}
+
+int wc_HashFinal(wc_HashAlg* hash, enum wc_HashType type, byte* out)
+{
+    int ret = HASH_TYPE_E; /* Default to hash type error */
+
+    if (hash == NULL || out == NULL)
+        return BAD_FUNC_ARG;
+
+    switch (type) {
+        case WC_HASH_TYPE_MD5:
+#ifndef NO_MD5
+            wc_Md5Final(&hash->md5, out);
+            ret = 0;
+#endif
+            break;
+        case WC_HASH_TYPE_SHA:
+#ifndef NO_SHA
+            ret = wc_ShaFinal(&hash->sha, out);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA224:
+#ifdef WOLFSSL_SHA224
+            ret = wc_Sha224Final(&hash->sha224, out);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA256:
+#ifndef NO_SHA256
+            ret = wc_Sha256Final(&hash->sha256, out);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA384:
+#ifdef WOLFSSL_SHA384
+            ret = wc_Sha384Final(&hash->sha384, out);
+#endif
+            break;
+        case WC_HASH_TYPE_SHA512:
+#ifdef WOLFSSL_SHA512
+            ret = wc_Sha512Final(&hash->sha512, out);
+#endif
+            break;
+
+        /* not supported */
+        case WC_HASH_TYPE_MD5_SHA:
+        case WC_HASH_TYPE_MD2:
+        case WC_HASH_TYPE_MD4:
+        case WC_HASH_TYPE_NONE:
+        default:
+            ret = BAD_FUNC_ARG;
+    };
+
+    return ret;
+}
+
+
+#if !defined(WOLFSSL_TI_HASH)
+
+#if !defined(NO_MD5)
+    int wc_Md5Hash(const byte* data, word32 len, byte* hash)
+    {
+        int ret;
+    #ifdef WOLFSSL_SMALL_STACK
+        Md5* md5;
+    #else
+        Md5  md5[1];
+    #endif
+
+    #ifdef WOLFSSL_SMALL_STACK
+        md5 = (Md5*)XMALLOC(sizeof(Md5), NULL, DYNAMIC_TYPE_TMP_BUFFER);
+        if (md5 == NULL)
+            return MEMORY_E;
+    #endif
+
+        ret = wc_InitMd5(md5);
+        if (ret == 0) {
+            ret = wc_Md5Update(md5, data, len);
+            if (ret == 0) {
+                ret = wc_Md5Final(md5, hash);
+            }
+        }
+
+    #ifdef WOLFSSL_SMALL_STACK
+        XFREE(md5, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+    #endif
+
+        return ret;
+    }
+#endif /* !NO_MD5 */
+
+#if !defined(NO_SHA)
+    int wc_ShaHash(const byte* data, word32 len, byte* hash)
+    {
+        int ret = 0;
+    #ifdef WOLFSSL_SMALL_STACK
+        Sha* sha;
+    #else
+        Sha sha[1];
+    #endif
+
+    #ifdef WOLFSSL_SMALL_STACK
+        sha = (Sha*)XMALLOC(sizeof(Sha), NULL, DYNAMIC_TYPE_TMP_BUFFER);
+        if (sha == NULL)
+            return MEMORY_E;
+    #endif
+
+        if ((ret = wc_InitSha(sha)) != 0) {
+            WOLFSSL_MSG("wc_InitSha failed");
+        }
+        else {
+            wc_ShaUpdate(sha, data, len);
+            wc_ShaFinal(sha, hash);
+        }
+
+    #ifdef WOLFSSL_SMALL_STACK
+        XFREE(sha, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+    #endif
+
+        return ret;
+    }
+#endif /* !NO_SHA */
+
+#if defined(WOLFSSL_SHA224)
+int wc_Sha224Hash(const byte* data, word32 len, byte* hash)
+{
+    int ret = 0;
+#ifdef WOLFSSL_SMALL_STACK
+    Sha224* sha224;
+#else
+    Sha224 sha224[1];
+#endif
+
+#ifdef WOLFSSL_SMALL_STACK
+    sha224 = (Sha224*)XMALLOC(sizeof(Sha224), NULL, DYNAMIC_TYPE_TMP_BUFFER);
+    if (sha224 == NULL)
+        return MEMORY_E;
+#endif
+
+    if ((ret = wc_InitSha224(sha224)) != 0) {
+        WOLFSSL_MSG("InitSha224 failed");
+    }
+    else if ((ret = wc_Sha224Update(sha224, data, len)) != 0) {
+        WOLFSSL_MSG("Sha224Update failed");
+    }
+    else if ((ret = wc_Sha224Final(sha224, hash)) != 0) {
+        WOLFSSL_MSG("Sha224Final failed");
+    }
+
+#ifdef WOLFSSL_SMALL_STACK
+    XFREE(sha224, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+#endif
+
+    return ret;
+}
+#endif /* WOLFSSL_SHA224 */
+
+#if !defined(NO_SHA256)
+    int wc_Sha256Hash(const byte* data, word32 len, byte* hash)
+    {
+        int ret = 0;
+    #ifdef WOLFSSL_SMALL_STACK
+        Sha256* sha256;
+    #else
+        Sha256 sha256[1];
+    #endif
+
+    #ifdef WOLFSSL_SMALL_STACK
+        sha256 = (Sha256*)XMALLOC(sizeof(Sha256), NULL, DYNAMIC_TYPE_TMP_BUFFER);
+        if (sha256 == NULL)
+            return MEMORY_E;
+    #endif
+
+        if ((ret = wc_InitSha256(sha256)) != 0) {
+            WOLFSSL_MSG("InitSha256 failed");
+        }
+        else if ((ret = wc_Sha256Update(sha256, data, len)) != 0) {
+            WOLFSSL_MSG("Sha256Update failed");
+        }
+        else if ((ret = wc_Sha256Final(sha256, hash)) != 0) {
+            WOLFSSL_MSG("Sha256Final failed");
+        }
+
+    #ifdef WOLFSSL_SMALL_STACK
+        XFREE(sha256, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+    #endif
+
+        return ret;
+    }
+#endif /* !NO_SHA256 */
+
+#endif /* !defined(WOLFSSL_TI_HASH) */
+
+
+#if defined(WOLFSSL_SHA512)
+    int wc_Sha512Hash(const byte* data, word32 len, byte* hash)
+    {
+        int ret = 0;
+    #ifdef WOLFSSL_SMALL_STACK
+        Sha512* sha512;
+    #else
+        Sha512 sha512[1];
+    #endif
+
+    #ifdef WOLFSSL_SMALL_STACK
+        sha512 = (Sha512*)XMALLOC(sizeof(Sha512), NULL, DYNAMIC_TYPE_TMP_BUFFER);
+        if (sha512 == NULL)
+            return MEMORY_E;
+    #endif
+
+        if ((ret = wc_InitSha512(sha512)) != 0) {
+            WOLFSSL_MSG("InitSha512 failed");
+        }
+        else if ((ret = wc_Sha512Update(sha512, data, len)) != 0) {
+            WOLFSSL_MSG("Sha512Update failed");
+        }
+        else if ((ret = wc_Sha512Final(sha512, hash)) != 0) {
+            WOLFSSL_MSG("Sha512Final failed");
+        }
+
+    #ifdef WOLFSSL_SMALL_STACK
+        XFREE(sha512, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+    #endif
+
+        return ret;
+    }
+
+    #if defined(WOLFSSL_SHA384)
+        int wc_Sha384Hash(const byte* data, word32 len, byte* hash)
+        {
+            int ret = 0;
+        #ifdef WOLFSSL_SMALL_STACK
+            Sha384* sha384;
+        #else
+            Sha384 sha384[1];
+        #endif
+
+        #ifdef WOLFSSL_SMALL_STACK
+            sha384 = (Sha384*)XMALLOC(sizeof(Sha384), NULL, DYNAMIC_TYPE_TMP_BUFFER);
+            if (sha384 == NULL)
+                return MEMORY_E;
+        #endif
+
+            if ((ret = wc_InitSha384(sha384)) != 0) {
+                WOLFSSL_MSG("InitSha384 failed");
+            }
+            else if ((ret = wc_Sha384Update(sha384, data, len)) != 0) {
+                WOLFSSL_MSG("Sha384Update failed");
+            }
+            else if ((ret = wc_Sha384Final(sha384, hash)) != 0) {
+                WOLFSSL_MSG("Sha384Final failed");
+            }
+
+        #ifdef WOLFSSL_SMALL_STACK
+            XFREE(sha384, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+        #endif
+
+            return ret;
+        }
+    #endif /* WOLFSSL_SHA384 */
+#endif /* WOLFSSL_SHA512 */
+