diff options
Diffstat (limited to 'mpi')
| -rw-r--r-- | mpi/mpi-pow.c | 11 |
1 files changed, 2 insertions, 9 deletions
diff --git a/mpi/mpi-pow.c b/mpi/mpi-pow.c index 70bf9e84..0be153fe 100644 --- a/mpi/mpi-pow.c +++ b/mpi/mpi-pow.c @@ -507,7 +507,8 @@ _gcry_mpi_powm (gcry_mpi_t res, } - /* Make BASE, EXPO and MOD not overlap with RES. */ + /* Make BASE, EXPO not overlap with RES. We don't need to check MOD + because that has already been copied to the MP var. */ if ( rp == bp ) { /* RES and BASE are identical. Allocate temp. space for BASE. */ @@ -523,14 +524,6 @@ _gcry_mpi_powm (gcry_mpi_t res, ep = ep_marker = mpi_alloc_limb_space( esize, esec ); MPN_COPY(ep, rp, esize); } - if ( rp == mp ) - { - /* RES and MOD are identical. Allocate temporary space for MOD.*/ - gcry_assert (!mp_marker); - mp_nlimbs = msec?msize:0; - mp = mp_marker = mpi_alloc_limb_space( msize, msec ); - MPN_COPY(mp, rp, msize); - } /* Copy base to the result. */ if (res->alloced < size) |