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Diffstat (limited to 'FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/hc128.c')
-rw-r--r--FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/hc128.c109
1 files changed, 70 insertions, 39 deletions
diff --git a/FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/hc128.c b/FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/hc128.c
index bcfa148e0..96f02d16d 100644
--- a/FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/hc128.c
+++ b/FreeRTOS-Plus/Source/WolfSSL/wolfcrypt/src/hc128.c
@@ -1,8 +1,8 @@
/* hc128.c
*
- * Copyright (C) 2006-2015 wolfSSL Inc.
+ * Copyright (C) 2006-2020 wolfSSL Inc.
*
- * This file is part of wolfSSL. (formerly known as CyaSSL)
+ * 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
@@ -16,9 +16,10 @@
*
* 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 02110-1301, USA
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
+
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
@@ -34,6 +35,7 @@
#include <wolfssl/wolfcrypt/hc128.h>
#include <wolfssl/wolfcrypt/misc.h>
#else
+ #define WOLFSSL_MISC_INCLUDED
#include <wolfcrypt/src/misc.c>
#endif
@@ -71,7 +73,7 @@
(ctx->T[(u)]) += tem2+(tem0 ^ tem1); \
(ctx->X[(a)]) = (ctx->T[(u)]); \
(n) = tem3 ^ (ctx->T[(u)]) ; \
-}
+}
/*one step of HC-128, update Q and generate 32 bits keystream*/
#define step_Q(ctx,u,v,a,b,c,d,n){ \
@@ -83,17 +85,17 @@
(ctx->T[(u)]) += tem2 + (tem0 ^ tem1); \
(ctx->Y[(a)]) = (ctx->T[(u)]); \
(n) = tem3 ^ (ctx->T[(u)]) ; \
-}
+}
/*16 steps of HC-128, generate 512 bits keystream*/
-static void generate_keystream(HC128* ctx, word32* keystream)
+static void generate_keystream(HC128* ctx, word32* keystream)
{
word32 cc,dd;
cc = ctx->counter1024 & 0x1ff;
dd = (cc+16)&0x1ff;
- if (ctx->counter1024 < 512)
- {
+ if (ctx->counter1024 < 512)
+ {
ctx->counter1024 = (ctx->counter1024 + 16) & 0x3ff;
step_P(ctx, cc+0, cc+1, 0, 6, 13,4, keystream[0]);
step_P(ctx, cc+1, cc+2, 1, 7, 14,5, keystream[1]);
@@ -112,7 +114,7 @@ static void generate_keystream(HC128* ctx, word32* keystream)
step_P(ctx, cc+14,cc+15,14,4, 11,2, keystream[14]);
step_P(ctx, cc+15,dd+0, 15,5, 12,3, keystream[15]);
}
- else
+ else
{
ctx->counter1024 = (ctx->counter1024 + 16) & 0x3ff;
step_Q(ctx, 512+cc+0, 512+cc+1, 0, 6, 13,4, keystream[0]);
@@ -148,7 +150,7 @@ static void generate_keystream(HC128* ctx, word32* keystream)
h1((ctx),(ctx->X[(d)]),tem3); \
(ctx->T[(u)]) = ((ctx->T[(u)]) + tem2+(tem0^tem1)) ^ tem3; \
(ctx->X[(a)]) = (ctx->T[(u)]); \
-}
+}
/*update table Q*/
#define update_Q(ctx,u,v,a,b,c,d){ \
@@ -159,7 +161,7 @@ static void generate_keystream(HC128* ctx, word32* keystream)
h2((ctx),(ctx->Y[(d)]),tem3); \
(ctx->T[(u)]) = ((ctx->T[(u)]) + tem2+(tem0^tem1)) ^ tem3; \
(ctx->Y[(a)]) = (ctx->T[(u)]); \
-}
+}
/*16 steps of HC-128, without generating keystream, */
/*but use the outputs to update P and Q*/
@@ -169,8 +171,8 @@ static void setup_update(HC128* ctx) /*each time 16 steps*/
cc = ctx->counter1024 & 0x1ff;
dd = (cc+16)&0x1ff;
- if (ctx->counter1024 < 512)
- {
+ if (ctx->counter1024 < 512)
+ {
ctx->counter1024 = (ctx->counter1024 + 16) & 0x3ff;
update_P(ctx, cc+0, cc+1, 0, 6, 13, 4);
update_P(ctx, cc+1, cc+2, 1, 7, 14, 5);
@@ -187,9 +189,9 @@ static void setup_update(HC128* ctx) /*each time 16 steps*/
update_P(ctx, cc+12,cc+13,12,2, 9, 0);
update_P(ctx, cc+13,cc+14,13,3, 10, 1);
update_P(ctx, cc+14,cc+15,14,4, 11, 2);
- update_P(ctx, cc+15,dd+0, 15,5, 12, 3);
+ update_P(ctx, cc+15,dd+0, 15,5, 12, 3);
}
- else
+ else
{
ctx->counter1024 = (ctx->counter1024 + 16) & 0x3ff;
update_Q(ctx, 512+cc+0, 512+cc+1, 0, 6, 13, 4);
@@ -207,8 +209,8 @@ static void setup_update(HC128* ctx) /*each time 16 steps*/
update_Q(ctx, 512+cc+12,512+cc+13,12,2, 9, 0);
update_Q(ctx, 512+cc+13,512+cc+14,13,3, 10, 1);
update_Q(ctx, 512+cc+14,512+cc+15,14,4, 11, 2);
- update_Q(ctx, 512+cc+15,512+dd+0, 15,5, 12, 3);
- }
+ update_Q(ctx, 512+cc+15,512+dd+0, 15,5, 12, 3);
+ }
}
@@ -230,7 +232,7 @@ static void setup_update(HC128* ctx) /*each time 16 steps*/
static void Hc128_SetIV(HC128* ctx, const byte* inIv)
-{
+{
word32 i;
word32 iv[4];
@@ -238,46 +240,46 @@ static void Hc128_SetIV(HC128* ctx, const byte* inIv)
XMEMCPY(iv, inIv, sizeof(iv));
else
XMEMSET(iv, 0, sizeof(iv));
-
+
for (i = 0; i < (128 >> 5); i++)
ctx->iv[i] = LITTLE32(iv[i]);
-
+
for (; i < 8; i++) ctx->iv[i] = ctx->iv[i-4];
-
- /* expand the key and IV into the table T */
- /* (expand the key and IV into the table P and Q) */
-
+
+ /* expand the key and IV into the table T */
+ /* (expand the key and IV into the table P and Q) */
+
for (i = 0; i < 8; i++) ctx->T[i] = ctx->key[i];
for (i = 8; i < 16; i++) ctx->T[i] = ctx->iv[i-8];
- for (i = 16; i < (256+16); i++)
+ for (i = 16; i < (256+16); i++)
ctx->T[i] = f2(ctx->T[i-2]) + ctx->T[i-7] + f1(ctx->T[i-15]) +
ctx->T[i-16]+i;
-
+
for (i = 0; i < 16; i++) ctx->T[i] = ctx->T[256+i];
- for (i = 16; i < 1024; i++)
+ for (i = 16; i < 1024; i++)
ctx->T[i] = f2(ctx->T[i-2]) + ctx->T[i-7] + f1(ctx->T[i-15]) +
ctx->T[i-16]+256+i;
-
+
/* initialize counter1024, X and Y */
ctx->counter1024 = 0;
for (i = 0; i < 16; i++) ctx->X[i] = ctx->T[512-16+i];
for (i = 0; i < 16; i++) ctx->Y[i] = ctx->T[512+512-16+i];
-
+
/* run the cipher 1024 steps before generating the output */
- for (i = 0; i < 64; i++) setup_update(ctx);
+ for (i = 0; i < 64; i++) setup_update(ctx);
}
-static INLINE int DoKey(HC128* ctx, const byte* key, const byte* iv)
-{
- word32 i;
+static WC_INLINE int DoKey(HC128* ctx, const byte* key, const byte* iv)
+{
+ word32 i;
- /* Key size in bits 128 */
+ /* Key size in bits 128 */
for (i = 0; i < (128 >> 5); i++)
ctx->key[i] = LITTLE32(((word32*)key)[i]);
-
+
for ( ; i < 8 ; i++) ctx->key[i] = ctx->key[i-4];
Hc128_SetIV(ctx, iv);
@@ -286,10 +288,35 @@ static INLINE int DoKey(HC128* ctx, const byte* key, const byte* iv)
}
+int wc_Hc128_SetHeap(HC128* ctx, void* heap)
+{
+ if (ctx == NULL) {
+ return BAD_FUNC_ARG;
+ }
+
+#ifdef XSTREAM_ALIGN
+ ctx->heap = heap;
+#endif
+
+ (void)heap;
+ return 0;
+}
+
/* Key setup */
int wc_Hc128_SetKey(HC128* ctx, const byte* key, const byte* iv)
{
+ if (ctx == NULL || key == NULL) {
+ return BAD_FUNC_ARG;
+ }
+
#ifdef XSTREAM_ALIGN
+ /* default heap to NULL or heap test value */
+ #ifdef WOLFSSL_HEAP_TEST
+ ctx->heap = (void*)WOLFSSL_HEAP_TEST;
+ #else
+ ctx->heap = NULL;
+ #endif /* WOLFSSL_HEAP_TEST */
+
if ((wolfssl_word)key % 4) {
int alignKey[4];
@@ -308,7 +335,7 @@ int wc_Hc128_SetKey(HC128* ctx, const byte* key, const byte* iv)
/* The following defines the encryption of data stream */
-static INLINE int DoProcess(HC128* ctx, byte* output, const byte* input,
+static WC_INLINE int DoProcess(HC128* ctx, byte* output, const byte* input,
word32 msglen)
{
word32 i, keystream[16];
@@ -345,7 +372,7 @@ static INLINE int DoProcess(HC128* ctx, byte* output, const byte* input,
{
word32 wordsLeft = msglen / sizeof(word32);
if (msglen % sizeof(word32)) wordsLeft++;
-
+
ByteReverseWords(keystream, keystream, wordsLeft * sizeof(word32));
}
#endif
@@ -361,20 +388,24 @@ static INLINE int DoProcess(HC128* ctx, byte* output, const byte* input,
/* Encrypt/decrypt a message of any size */
int wc_Hc128_Process(HC128* ctx, byte* output, const byte* input, word32 msglen)
{
+ if (ctx == NULL || output == NULL || input == NULL) {
+ return BAD_FUNC_ARG;
+ }
+
#ifdef XSTREAM_ALIGN
if ((wolfssl_word)input % 4 || (wolfssl_word)output % 4) {
#ifndef NO_WOLFSSL_ALLOC_ALIGN
byte* tmp;
WOLFSSL_MSG("Hc128Process unaligned");
- tmp = (byte*)XMALLOC(msglen, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+ tmp = (byte*)XMALLOC(msglen, ctx->heap, DYNAMIC_TYPE_TMP_BUFFER);
if (tmp == NULL) return MEMORY_E;
XMEMCPY(tmp, input, msglen);
DoProcess(ctx, tmp, tmp, msglen);
XMEMCPY(output, tmp, msglen);
- XFREE(tmp, NULL, DYNAMIC_TYPE_TMP_BUFFER);
+ XFREE(tmp, ctx->heap, DYNAMIC_TYPE_TMP_BUFFER);
return 0;
#else
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