mirror/mbedtls
1
0
Fork 0
mirror of https://github.com/Mbed-TLS/mbedtls.git synced 2025-02-25 00:39:55 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

Zeroize sensitive data

Browse Source 
Signed-off-by: Gilles Peskine <Gilles.Peskine@arm.com>
This commit is contained in:
Gilles Peskine 2022-11-16 22:54:14 +01:00 committed by Janos Follath
parent 0b270a5603
commit 7d89d351e6
1 changed files with 7 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
library/bignum_core.c
View File

@ -624,6 +624,12 @@ static void exp_mod_precompute_window( const mbedtls_mpi_uint *A,
}
}
/* Exponentiation: X := A^E mod N.
*
* As in other bignum functions, assume that AN_limbs and E_limbs are nonzero.
*
* RR must contain 2^{2*biL} mod N.
*/
int mbedtls_mpi_core_exp_mod( mbedtls_mpi_uint *X,
const mbedtls_mpi_uint *A,
const mbedtls_mpi_uint *N,
@ -722,6 +728,7 @@ int mbedtls_mpi_core_exp_mod( mbedtls_mpi_uint *X,
const mbedtls_mpi_uint one = 1;
mbedtls_mpi_core_montmul( X, X, &one, 1, N, AN_limbs, mm, temp );
mbedtls_platform_zeroize( mempool, total_limbs * sizeof(mbedtls_mpi_uint) );
mbedtls_free( mempool );
return( 0 );
}