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| author | Werner Koch <wk@gnupg.org> | 2003-12-19 19:50:04 +0000 |
|---|---|---|
| committer | Werner Koch <wk@gnupg.org> | 2003-12-19 19:50:04 +0000 |
| commit | 942783ba87c8d36cd0fb1e040c7ed78d0a6dce58 (patch) | |
| tree | 0dd63136838e63c6ae773027d0ecb81d8b3ea47a /mpi/mpi-mul.c | |
| parent | 87ab67996b2d67322fdeaf1753010130d5942af6 (diff) | |
| download | libgcrypt-942783ba87c8d36cd0fb1e040c7ed78d0a6dce58.tar.gz | |
* mpi-internal.h [M_DEBUG]: Removed this unused code.
(struct karatsuba_ctx): Added TSPACE_NLIMBS and TP_NLIMBS.
* mpiutil.c (_gcry_mpi_free_limb_space): Add arg NLIMBS and wipe
out the memory. Changed all callers.
* mpih-mul.c (_gcry_mpih_mul_karatsuba_case): Keep track of
allocated limbs.
* mpi-div.c (_gcry_mpi_tdiv_qr): Keep track of allocated limbs.
* mpi-mul.c (gcry_mpi_mul): Ditto.
* mpi-pow.c (gcry_mpi_powm): Ditto.
* mpiutil.c (gcry_mpi_randomize): Use gcry_create_nonce if WEAK
random has been requested.
Diffstat (limited to 'mpi/mpi-mul.c')
| -rw-r--r-- | mpi/mpi-mul.c | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/mpi/mpi-mul.c b/mpi/mpi-mul.c index 317a3c52..23beee0b 100644 --- a/mpi/mpi-mul.c +++ b/mpi/mpi-mul.c @@ -122,7 +122,7 @@ gcry_mpi_mul( gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v) int usign, vsign, usecure, vsecure, sign_product; int assign_wp=0; mpi_ptr_t tmp_limb=NULL; - + unsigned int tmp_limb_nlimbs = 0; if( u->nlimbs < v->nlimbs ) { /* Swap U and V. */ usize = v->nlimbs; @@ -170,6 +170,7 @@ gcry_mpi_mul( gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v) else { /* Make U and V not overlap with W. */ if( wp == up ) { /* W and U are identical. Allocate temporary space for U. */ + tmp_limb_nlimbs = usize; up = tmp_limb = mpi_alloc_limb_space( usize, usecure ); /* Is V identical too? Keep it identical with U. */ if( wp == vp ) @@ -179,6 +180,7 @@ gcry_mpi_mul( gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v) } else if( wp == vp ) { /* W and V are identical. Allocate temporary space for V. */ + tmp_limb_nlimbs = vsize; vp = tmp_limb = mpi_alloc_limb_space( vsize, vsecure ); /* Copy to the temporary space. */ MPN_COPY( vp, wp, vsize ); @@ -197,7 +199,7 @@ gcry_mpi_mul( gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v) /* copy the temp wp from secure memory back to normal memory */ mpi_ptr_t tmp_wp = mpi_alloc_limb_space (wsize, 0); MPN_COPY (tmp_wp, wp, wsize); - mpi_free_limb_space (wp); + _gcry_mpi_free_limb_space (wp, 0); wp = tmp_wp; } _gcry_mpi_assign_limb_space( w, wp, wsize ); @@ -205,7 +207,7 @@ gcry_mpi_mul( gcry_mpi_t w, gcry_mpi_t u, gcry_mpi_t v) w->nlimbs = wsize; w->sign = sign_product; if( tmp_limb ) - mpi_free_limb_space( tmp_limb ); + _gcry_mpi_free_limb_space (tmp_limb, tmp_limb_nlimbs); } |