diff options
| -rw-r--r-- | mpi/mpi-pow.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/mpi/mpi-pow.c b/mpi/mpi-pow.c index 0be153fe..a780ebd1 100644 --- a/mpi/mpi-pow.c +++ b/mpi/mpi-pow.c @@ -83,6 +83,7 @@ _gcry_mpi_powm (gcry_mpi_t res, rp = res->d; ep = expo->d; + MPN_NORMALIZE(ep, esize); if (!msize) _gcry_divide_by_zero(); @@ -429,6 +430,9 @@ _gcry_mpi_powm (gcry_mpi_t res, size = 2 * msize; msign = mod->sign; + ep = expo->d; + MPN_NORMALIZE(ep, esize); + if (esize * BITS_PER_MPI_LIMB > 512) W = 5; else if (esize * BITS_PER_MPI_LIMB > 256) @@ -445,7 +449,6 @@ _gcry_mpi_powm (gcry_mpi_t res, bsec = mpi_is_secure(base); rp = res->d; - ep = expo->d; if (!msize) _gcry_divide_by_zero(); |