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Added MPI_CHK around unguarded mpi calls

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This commit is contained in:
Paul Bakker 2014-01-23 20:38:35 +01:00
parent 3cb407107d
commit 1dc45f15a6
1 changed files with 6 additions and 3 deletions
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9
library/bignum.c
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@ -1456,8 +1456,11 @@ int mpi_exp_mod( mpi *X, const mpi *A, const mpi *E, const mpi *N, mpi *_RR )
* W[1] = A * R^2 * R^-1 mod N = A * R mod N * W[1] = A * R^2 * R^-1 mod N = A * R mod N
*/ */
if( mpi_cmp_mpi( A, N ) >= 0 ) if( mpi_cmp_mpi( A, N ) >= 0 )
mpi_mod_mpi( &W[1], A, N ); {
else mpi_copy( &W[1], A ); MPI_CHK( mpi_mod_mpi( &W[1], A, N ) );
}
else
MPI_CHK( mpi_copy( &W[1], A ) );
mpi_montmul( &W[1], &RR, N, mm, &T ); mpi_montmul( &W[1], &RR, N, mm, &T );
@ -1577,7 +1580,7 @@ int mpi_exp_mod( mpi *X, const mpi *A, const mpi *E, const mpi *N, mpi *_RR )
if( neg ) if( neg )
{ {
X->s = -1; X->s = -1;
mpi_add_mpi( X, N, X ); MPI_CHK( mpi_add_mpi( X, N, X ) );
} }
cleanup: cleanup: