From fd492ab1be4c04fa5eae726bf9af5e55967a2870 Mon Sep 17 00:00:00 2001 From: Dave Rodgman Date: Wed, 17 May 2023 15:17:29 +0100 Subject: [PATCH] Use new CT interface in mbedtls_mpi_core_random Signed-off-by: Dave Rodgman --- library/bignum_core.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/library/bignum_core.c b/library/bignum_core.c index 308f5c76f4..b41d046a54 100644 --- a/library/bignum_core.c +++ b/library/bignum_core.c @@ -672,7 +672,7 @@ int mbedtls_mpi_core_random(mbedtls_mpi_uint *X, int (*f_rng)(void *, unsigned char *, size_t), void *p_rng) { - unsigned ge_lower = 1, lt_upper = 0; + mbedtls_ct_condition_t ge_lower = MBEDTLS_CT_TRUE, lt_upper = MBEDTLS_CT_FALSE; size_t n_bits = mbedtls_mpi_core_bitlen(N, limbs); size_t n_bytes = (n_bits + 7) / 8; int ret = MBEDTLS_ERR_ERROR_CORRUPTION_DETECTED; @@ -717,7 +717,7 @@ int mbedtls_mpi_core_random(mbedtls_mpi_uint *X, ge_lower = mbedtls_mpi_core_uint_le_mpi(min, X, limbs); lt_upper = mbedtls_mpi_core_lt_ct(X, N, limbs); - } while (ge_lower == 0 || lt_upper == 0); + } while (mbedtls_ct_bool_and(ge_lower, lt_upper) == MBEDTLS_CT_FALSE); cleanup: return ret;