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Fix non-opaque use of mbedtls_ct_condition_t

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman 2023-05-18 13:28:21 +01:00
parent 1e8b6ac09c
commit 2c76484005
1 changed files with 2 additions and 2 deletions
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4
library/bignum.c
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@ -96,8 +96,8 @@ int mbedtls_mpi_lt_mpi_ct(const mbedtls_mpi *X,
/* This is used to conditionally swap the pointers in const time */
void * const p[2] = { X->p, Y->p };
mbedtls_ct_condition_t lt = mbedtls_mpi_core_lt_ct(
p[X_is_negative & 1], p[(X_is_negative & 1) ^ 1], X->n);
size_t i = mbedtls_ct_size_if0(X_is_negative, 1);
mbedtls_ct_condition_t lt = mbedtls_mpi_core_lt_ct(p[i], p[i ^ 1], X->n);
result = mbedtls_ct_bool_or(result, mbedtls_ct_bool_and(mbedtls_ct_bool_not(cond), lt));