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Fix representation of mod-random output

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mbedtls_mpi_mod_raw_random() and mbedtls_mpi_mod_random() were producing
output in the Montgomery representation, instead of obeying the
representation chosen in the modulus structure. Fix this.

Duplicate the test cases for mod-random output to have separate test cases
for each representation.

Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine
2022-12-20 19:31:09 +01:00
parent be69c7d559
commit e1d8326e90
3 changed files with 58 additions and 30 deletions
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2
library/bignum_mod_raw.c
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@ -215,7 +215,7 @@ int mbedtls_mpi_mod_raw_random( mbedtls_mpi_uint *X,
int ret = mbedtls_mpi_core_random( X, min, N->p, N->limbs, f_rng, p_rng );
if( ret != 0 )
return( ret );
return( mbedtls_mpi_mod_raw_to_mont_rep( X, N ) );
return( mbedtls_mpi_mod_raw_canonical_to_modulus_rep( X, N ) );
}
/* END MERGE SLOT 6 */