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aes: fix potential unaligned access in aes-gcm

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This commit is contained in:
Marius Vikhammer
2021-10-27 12:41:46 +08:00
parent 79b59947d8
commit 1c9f018891
1 changed files with 3 additions and 6 deletions
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9
components/mbedtls/port/aes/esp_aes_gcm.c
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@@ -108,12 +108,9 @@ static void increment32_j0(esp_gcm_context *ctx, uint8_t *j)
/* Function to xor two data blocks */ /* Function to xor two data blocks */
static void xor_data(uint8_t *d, const uint8_t *s) static void xor_data(uint8_t *d, const uint8_t *s)
{ {
uint32_t *dst = (uint32_t *) d; for (int i = 0; i < AES_BLOCK_BYTES; i++) {
uint32_t *src = (uint32_t *) s; d[i] ^= s[i];
*dst++ ^= *src++; }
*dst++ ^= *src++;
*dst++ ^= *src++;
*dst++ ^= *src++;
} }