Revert "crypto: GnuPG based MPI lib - additional sources (part 4)"

This reverts commit 7e8dec918ef8e0f68b4937c3c50fa57002077a4d.

RSA verification implementation does not use this code.
James Morris has asked to remove that.

Signed-off-by: Dmitry Kasatkin <dmitry.kasatkin@intel.com>
Requested-by: James Morris <james.l.morris@oracle.com>
Signed-off-by: James Morris <james.l.morris@oracle.com>

1 files changed, 0 insertions, 136 deletions

diff --git a/lib/mpi/mpi-scan.c b/lib/mpi/mpi-scan.c
deleted file mode 100644
index b2da5ad96199..000000000000
--- a/lib/mpi/mpi-scan.c
+++ /dev/null
@@ -1,136 +0,0 @@
-/* mpi-scan.c  -  MPI functions
- * Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
- *
- * This file is part of GnuPG.
- *
- * GnuPG is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * GnuPG is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
- */
-
-#include "mpi-internal.h"
-#include "longlong.h"
-
-/****************
- * Scan through an mpi and return byte for byte. a -1 is returned to indicate
- * the end of the mpi. Scanning is done from the lsb to the msb, returned
- * values are in the range of 0 .. 255.
- *
- * FIXME: This code is VERY ugly!
- */
-int mpi_getbyte(const MPI a, unsigned idx)
-{
-        int i, j;
-        unsigned n;
-        mpi_ptr_t ap;
-        mpi_limb_t limb;
-
-        ap = a->d;
-        for (n = 0, i = 0; i < a->nlimbs; i++) {
-                limb = ap[i];
-                for (j = 0; j < BYTES_PER_MPI_LIMB; j++, n++)
-                        if (n == idx)
-                                return (limb >> j * 8) & 0xff;
-        }
-        return -1;
-}
-
-/****************
- * Put a value at position IDX into A. idx counts from lsb to msb
- */
-void mpi_putbyte(MPI a, unsigned idx, int xc)
-{
-        int i, j;
-        unsigned n;
-        mpi_ptr_t ap;
-        mpi_limb_t limb, c;
-
-        c = xc & 0xff;
-        ap = a->d;
-        for (n = 0, i = 0; i < a->alloced; i++) {
-                limb = ap[i];
-                for (j = 0; j < BYTES_PER_MPI_LIMB; j++, n++)
-                        if (n == idx) {
-#if BYTES_PER_MPI_LIMB == 4
-                                if (j == 0)
-                                        limb = (limb & 0xffffff00) | c;
-                                else if (j == 1)
-                                        limb = (limb & 0xffff00ff) | (c << 8);
-                                else if (j == 2)
-                                        limb = (limb & 0xff00ffff) | (c << 16);
-                                else
-                                        limb = (limb & 0x00ffffff) | (c << 24);
-#elif BYTES_PER_MPI_LIMB == 8
-                                if (j == 0)
-                                        limb = (limb & 0xffffffffffffff00) | c;
-                                else if (j == 1)
-                                        limb =
-                                            (limb & 0xffffffffffff00ff) | (c <<
-                                                                           8);
-                                else if (j == 2)
-                                        limb =
-                                            (limb & 0xffffffffff00ffff) | (c <<
-                                                                           16);
-                                else if (j == 3)
-                                        limb =
-                                            (limb & 0xffffffff00ffffff) | (c <<
-                                                                           24);
-                                else if (j == 4)
-                                        limb =
-                                            (limb & 0xffffff00ffffffff) | (c <<
-                                                                           32);
-                                else if (j == 5)
-                                        limb =
-                                            (limb & 0xffff00ffffffffff) | (c <<
-                                                                           40);
-                                else if (j == 6)
-                                        limb =
-                                            (limb & 0xff00ffffffffffff) | (c <<
-                                                                           48);
-                                else
-                                        limb =
-                                            (limb & 0x00ffffffffffffff) | (c <<
-                                                                           56);
-#else
-#error please enhance this function, its ugly - i know.
-#endif
-                                if (a->nlimbs <= i)
-                                        a->nlimbs = i + 1;
-                                ap[i] = limb;
-                                return;
-                        }
-        }
-        log_bug("index out of range\n");
-}
-
-/****************
- * Count the number of zerobits at the low end of A
- */
-unsigned mpi_trailing_zeros(const MPI a)
-{
-        unsigned n, count = 0;
-
-        for (n = 0; n < a->nlimbs; n++) {
-                if (a->d[n]) {
-                        unsigned nn;
-                        mpi_limb_t alimb = a->d[n];
-
-                        count_trailing_zeros(nn, alimb);
-                        count += nn;
-                        break;
-                }
-                count += BITS_PER_MPI_LIMB;
-        }
-        return count;
-
-}