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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
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Dave Rodgman
2023-06-15 20:27:53 +01:00
parent 3650a60586
commit 2dd15b3ab5
2 changed files with 7 additions and 4 deletions
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6
library/aes.c
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@@ -1083,8 +1083,8 @@ int mbedtls_aes_crypt_cbc(mbedtls_aes_context *ctx,
goto exit; goto exit;
} }
/* Avoid using the NEON implementation of mbedtls_xor. Because of the dependency on /* Avoid using the NEON implementation of mbedtls_xor. Because of the dependency on
* the result for the next block in CBC, and the cost of transferring that data from * the result for the next block in CBC, and the cost of transferring that data from
* NEON registers, NEON is slower on aarch64. */ * NEON registers, NEON is slower on aarch64. */
mbedtls_xor_no_simd(output, output, iv, 16); mbedtls_xor_no_simd(output, output, iv, 16);
memcpy(iv, temp, 16); memcpy(iv, temp, 16);
@@ -1130,7 +1130,7 @@ typedef unsigned char mbedtls_be128[16];
*/ */
MBEDTLS_OPTIMIZE_ALWAYS MBEDTLS_OPTIMIZE_ALWAYS
static inline void mbedtls_gf128mul_x_ble(unsigned char r[16], static inline void mbedtls_gf128mul_x_ble(unsigned char r[16],
const unsigned char x[16]) const unsigned char x[16])
{ {
uint64_t a, b, ra, rb; uint64_t a, b, ra, rb;

5
library/common.h
View File

@@ -168,7 +168,10 @@ inline void mbedtls_xor(unsigned char *r, const unsigned char *a, const unsigned
* \param b Pointer to input (buffer of at least \p n bytes) * \param b Pointer to input (buffer of at least \p n bytes)
* \param n Number of bytes to process. * \param n Number of bytes to process.
*/ */
static inline void mbedtls_xor_no_simd(unsigned char *r, const unsigned char *a, const unsigned char *b, size_t n) static inline void mbedtls_xor_no_simd(unsigned char *r,
const unsigned char *a,
const unsigned char *b,
size_t n)
{ {
size_t i = 0; size_t i = 0;
#if defined(MBEDTLS_EFFICIENT_UNALIGNED_ACCESS) #if defined(MBEDTLS_EFFICIENT_UNALIGNED_ACCESS)