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curve448: Use constant time zero check function
[openssl.git]
/
crypto
/
ec
/
curve448
/
arch_64
/
arch_intrinsics.h
diff --git
a/crypto/ec/curve448/arch_64/arch_intrinsics.h
b/crypto/ec/curve448/arch_64/arch_intrinsics.h
index ef611b903f8df1ac0601fd466089bf898ee6d5a2..30be38e99b3e310f88f64e0b1c1e11cc25e9eb20 100644
(file)
--- a/
crypto/ec/curve448/arch_64/arch_intrinsics.h
+++ b/
crypto/ec/curve448/arch_64/arch_intrinsics.h
@@
-13,13
+13,11
@@
#ifndef OSSL_CRYPTO_EC_CURVE448_ARCH_64_INTRINSICS_H
# define OSSL_CRYPTO_EC_CURVE448_ARCH_64_INTRINSICS_H
#ifndef OSSL_CRYPTO_EC_CURVE448_ARCH_64_INTRINSICS_H
# define OSSL_CRYPTO_EC_CURVE448_ARCH_64_INTRINSICS_H
+# include "internal/constant_time.h"
+
# define ARCH_WORD_BITS 64
# define ARCH_WORD_BITS 64
-static ossl_inline uint64_t word_is_zero(uint64_t a)
-{
- /* let's hope the compiler isn't clever enough to optimize this. */
- return (((__uint128_t) a) - 1) >> 64;
-}
+# define word_is_zero(a) constant_time_is_zero_64(a)
static ossl_inline uint128_t widemul(uint64_t a, uint64_t b)
{
static ossl_inline uint128_t widemul(uint64_t a, uint64_t b)
{