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Fix for Cube HAL v2 back-to-back DES/DES3. Whitespace. Enable the new FIFO 16 block logic for all hardware that supports it.

pull/5243/head
David Garske 2022-06-10 08:16:56 -07:00 committed by Daniele Lacamera
parent c52c2e5dfb
commit fb10c90935
2 changed files with 22 additions and 7 deletions
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24
wolfcrypt/src/des3.c
View File

@ -173,7 +173,7 @@
(void)dir;
#ifndef WOLFSSL_STM32_CUBEMX
{
{
word32 *dkey1 = des->key[0];
word32 *dkey2 = des->key[1];
word32 *dkey3 = des->key[2];
@ -224,7 +224,6 @@
hcryp.Init.pInitVect = (STM_CRYPT_TYPE*)des->reg;
#ifdef STM32_HAL_V2
hcryp.Init.DataWidthUnit = CRYP_DATAWIDTHUNIT_BYTE;
ByteReverseWords(des->reg, des->reg, DES_BLOCK_SIZE);
if (mode == DES_CBC)
hcryp.Init.Algorithm = CRYP_DES_CBC;
else
@ -242,11 +241,14 @@
HAL_CRYP_Decrypt(&hcryp, (uint32_t*)in, sz, (uint32_t*)out,
STM32_HAL_TIMEOUT);
}
/* save off IV */
des->reg[0] = hcryp.Instance->IV0LR;
des->reg[1] = hcryp.Instance->IV0RR;
#else
while (sz > 0) {
/* if input and output same will overwrite input iv */
XMEMCPY(des->tmp, in + sz - DES_BLOCK_SIZE, DES_BLOCK_SIZE);
if (mode == DES_CBC) {
if (dir == DES_ENCRYPTION) {
HAL_CRYP_DESCBC_Encrypt(&hcryp, (uint8_t*)in,
@ -386,7 +388,6 @@
hcryp.Init.pInitVect = (STM_CRYPT_TYPE*)des->reg;
#ifdef STM32_HAL_V2
hcryp.Init.DataWidthUnit = CRYP_DATAWIDTHUNIT_BYTE;
ByteReverseWords(des->reg, des->reg, DES_BLOCK_SIZE);
hcryp.Init.Algorithm = CRYP_TDES_CBC;
#endif
@ -401,6 +402,9 @@
HAL_CRYP_Decrypt(&hcryp, (uint32_t*)in, sz, (uint32_t*)out,
STM32_HAL_TIMEOUT);
}
/* save off IV */
des->reg[0] = hcryp.Instance->IV0LR;
des->reg[1] = hcryp.Instance->IV0RR;
#else
while (sz > 0) {
if (dir == DES_ENCRYPTION) {
@ -1818,8 +1822,12 @@
void wc_Des_SetIV(Des* des, const byte* iv)
{
if (des && iv)
if (des && iv) {
XMEMCPY(des->reg, iv, DES_BLOCK_SIZE);
#ifdef STM32_HAL_V2
ByteReverseWords(des->reg, des->reg, DES_BLOCK_SIZE);
#endif
}
else if (des)
XMEMSET(des->reg, 0, DES_BLOCK_SIZE);
}
@ -1829,8 +1837,12 @@ int wc_Des3_SetIV(Des3* des, const byte* iv)
if (des == NULL) {
return BAD_FUNC_ARG;
}
if (iv)
if (iv) {
XMEMCPY(des->reg, iv, DES_BLOCK_SIZE);
#ifdef STM32_HAL_V2
ByteReverseWords(des->reg, des->reg, DES_BLOCK_SIZE);
#endif
}
else
XMEMSET(des->reg, 0, DES_BLOCK_SIZE);

5
wolfssl/wolfcrypt/port/st/stm32.h
View File

@ -60,7 +60,10 @@
/* STM32 register size in bytes */
#define STM32_HASH_REG_SIZE 4
#if defined(WOLFSSL_STM32U5) || defined(WOLFSSL_STM32H7)
#if defined(WOLFSSL_STM32F4) || defined(WOLFSSL_STM32F7) || \
defined(WOLFSSL_STM32L4) || defined(WOLFSSL_STM32L5) || \
defined(WOLFSSL_STM32H7) || defined(WOLFSSL_STM32U5) || \
defined(WOLFSSL_STM32WB)
#define STM32_HASH_FIFO_SIZE 16 /* FIFO is 16 deep 32-bits wide */
#else
#define STM32_HASH_FIFO_SIZE 1