crypto: lib - Move mpi into lib/crypto

[linux-2.6-microblaze.git] / lib / mpi / mpi-add.c

diff --git a/lib/mpi/mpi-add.c b/lib/mpi/mpi-add.c
deleted file mode 100644 (file)
index 9056fc5..0000000
--- a/lib/mpi/mpi-add.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/* mpi-add.c  -  MPI functions
- * Copyright (C) 1994, 1996, 1998, 2001, 2002,
- *               2003 Free Software Foundation, Inc.
- *
- * This file is part of Libgcrypt.
- *
- * Note: This code is heavily based on the GNU MP Library.
- *      Actually it's the same code with only minor changes in the
- *      way the data is stored; this is to support the abstraction
- *      of an optional secure memory allocation which may be used
- *      to avoid revealing of sensitive data due to paging etc.
- */
-
-#include "mpi-internal.h"
-
-/****************
- * Add the unsigned integer V to the mpi-integer U and store the
- * result in W. U and V may be the same.
- */
-void mpi_add_ui(MPI w, MPI u, unsigned long v)
-{
-       mpi_ptr_t wp, up;
-       mpi_size_t usize, wsize;
-       int usign, wsign;
-
-       usize = u->nlimbs;
-       usign = u->sign;
-       wsign = 0;
-
-       /* If not space for W (and possible carry), increase space.  */
-       wsize = usize + 1;
-       if (w->alloced < wsize)
-               mpi_resize(w, wsize);
-
-       /* These must be after realloc (U may be the same as W).  */
-       up = u->d;
-       wp = w->d;
-
-       if (!usize) {  /* simple */
-               wp[0] = v;
-               wsize = v ? 1:0;
-       } else if (!usign) {  /* mpi is not negative */
-               mpi_limb_t cy;
-               cy = mpihelp_add_1(wp, up, usize, v);
-               wp[usize] = cy;
-               wsize = usize + cy;
-       } else {
-               /* The signs are different.  Need exact comparison to determine
-                * which operand to subtract from which.
-                */
-               if (usize == 1 && up[0] < v) {
-                       wp[0] = v - up[0];
-                       wsize = 1;
-               } else {
-                       mpihelp_sub_1(wp, up, usize, v);
-                       /* Size can decrease with at most one limb. */
-                       wsize = usize - (wp[usize-1] == 0);
-                       wsign = 1;
-               }
-       }
-
-       w->nlimbs = wsize;
-       w->sign   = wsign;
-}
-
-
-void mpi_add(MPI w, MPI u, MPI v)
-{
-       mpi_ptr_t wp, up, vp;
-       mpi_size_t usize, vsize, wsize;
-       int usign, vsign, wsign;
-
-       if (u->nlimbs < v->nlimbs) { /* Swap U and V. */
-               usize = v->nlimbs;
-               usign = v->sign;
-               vsize = u->nlimbs;
-               vsign = u->sign;
-               wsize = usize + 1;
-               RESIZE_IF_NEEDED(w, wsize);
-               /* These must be after realloc (u or v may be the same as w).  */
-               up = v->d;
-               vp = u->d;
-       } else {
-               usize = u->nlimbs;
-               usign = u->sign;
-               vsize = v->nlimbs;
-               vsign = v->sign;
-               wsize = usize + 1;
-               RESIZE_IF_NEEDED(w, wsize);
-               /* These must be after realloc (u or v may be the same as w).  */
-               up = u->d;
-               vp = v->d;
-       }
-       wp = w->d;
-       wsign = 0;
-
-       if (!vsize) {  /* simple */
-               MPN_COPY(wp, up, usize);
-               wsize = usize;
-               wsign = usign;
-       } else if (usign != vsign) { /* different sign */
-               /* This test is right since USIZE >= VSIZE */
-               if (usize != vsize) {
-                       mpihelp_sub(wp, up, usize, vp, vsize);
-                       wsize = usize;
-                       MPN_NORMALIZE(wp, wsize);
-                       wsign = usign;
-               } else if (mpihelp_cmp(up, vp, usize) < 0) {
-                       mpihelp_sub_n(wp, vp, up, usize);
-                       wsize = usize;
-                       MPN_NORMALIZE(wp, wsize);
-                       if (!usign)
-                               wsign = 1;
-               } else {
-                       mpihelp_sub_n(wp, up, vp, usize);
-                       wsize = usize;
-                       MPN_NORMALIZE(wp, wsize);
-                       if (usign)
-                               wsign = 1;
-               }
-       } else { /* U and V have same sign. Add them. */
-               mpi_limb_t cy = mpihelp_add(wp, up, usize, vp, vsize);
-               wp[usize] = cy;
-               wsize = usize + cy;
-               if (usign)
-                       wsign = 1;
-       }
-
-       w->nlimbs = wsize;
-       w->sign = wsign;
-}
-EXPORT_SYMBOL_GPL(mpi_add);
-
-void mpi_sub(MPI w, MPI u, MPI v)
-{
-       MPI vv = mpi_copy(v);
-       vv->sign = !vv->sign;
-       mpi_add(w, u, vv);
-       mpi_free(vv);
-}
-EXPORT_SYMBOL_GPL(mpi_sub);
-
-void mpi_addm(MPI w, MPI u, MPI v, MPI m)
-{
-       mpi_add(w, u, v);
-       mpi_mod(w, w, m);
-}
-EXPORT_SYMBOL_GPL(mpi_addm);
-
-void mpi_subm(MPI w, MPI u, MPI v, MPI m)
-{
-       mpi_sub(w, u, v);
-       mpi_mod(w, w, m);
-}
-EXPORT_SYMBOL_GPL(mpi_subm);