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Add mbedtls_ct_bool_if and mbedtls_ct_bool_if_else_0

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Signed-off-by: Dave Rodgman <dave.rodgman@arm.com>
This commit is contained in:
Dave Rodgman
2023-09-19 21:51:13 +01:00
parent 437500c5b1
commit 143f5f7c68
3 changed files with 50 additions and 0 deletions
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14
library/constant_time_impl.h
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@ -350,6 +350,14 @@ static inline unsigned mbedtls_ct_uint_if(mbedtls_ct_condition_t condition,
return (unsigned) mbedtls_ct_if(condition, (mbedtls_ct_uint_t) if1, (mbedtls_ct_uint_t) if0);
}
static inline mbedtls_ct_condition_t mbedtls_ct_bool_if(mbedtls_ct_condition_t condition,
mbedtls_ct_condition_t if1,
mbedtls_ct_condition_t if0)
{
return (mbedtls_ct_condition_t) mbedtls_ct_if(condition, (mbedtls_ct_uint_t) if1,
(mbedtls_ct_uint_t) if0);
}
#if defined(MBEDTLS_BIGNUM_C)
static inline mbedtls_mpi_uint mbedtls_ct_mpi_uint_if(mbedtls_ct_condition_t condition,
@ -373,6 +381,12 @@ static inline unsigned mbedtls_ct_uint_if_else_0(mbedtls_ct_condition_t conditio
return (unsigned) (condition & if1);
}
static inline mbedtls_ct_condition_t mbedtls_ct_bool_if_else_0(mbedtls_ct_condition_t condition,
mbedtls_ct_condition_t if1)
{
return (mbedtls_ct_condition_t) (condition & if1);
}
#if defined(MBEDTLS_BIGNUM_C)
static inline mbedtls_mpi_uint mbedtls_ct_mpi_uint_if_else_0(mbedtls_ct_condition_t condition,