diff options
author | Herbert Xu <herbert@gondor.apana.org.au> | 2023-08-04 17:24:34 +0800 |
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committer | Herbert Xu <herbert@gondor.apana.org.au> | 2023-08-11 19:19:27 +0800 |
commit | 2a598d0b2800aa23ba51adcf060cec524aaa63b2 (patch) | |
tree | b7c035f0fa57dab30af2768114f71f64230dac5c /lib/mpi/generic_mpih-mul1.c | |
parent | 9ae4577bc077a7e32c3c7d442c95bc76865c0f17 (diff) |
crypto: lib - Move mpi into lib/crypto
As lib/mpi is mostly used by crypto code, move it under lib/crypto
so that patches touching it get directed to the right mailing list.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Reviewed-by: Mimi Zohar <zohar@linux.ibm.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'lib/mpi/generic_mpih-mul1.c')
-rw-r--r-- | lib/mpi/generic_mpih-mul1.c | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/lib/mpi/generic_mpih-mul1.c b/lib/mpi/generic_mpih-mul1.c deleted file mode 100644 index e020e61d47b9..000000000000 --- a/lib/mpi/generic_mpih-mul1.c +++ /dev/null @@ -1,44 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* mpihelp-mul_1.c - MPI helper functions - * Copyright (C) 1994, 1996, 1997, 1998, 2001 Free Software Foundation, Inc. - * - * This file is part of GnuPG. - * - * 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. - * The GNU MP Library itself is published under the LGPL; - * however I decided to publish this code under the plain GPL. - */ - -#include "mpi-internal.h" -#include "longlong.h" - -mpi_limb_t -mpihelp_mul_1(mpi_ptr_t res_ptr, mpi_ptr_t s1_ptr, mpi_size_t s1_size, - mpi_limb_t s2_limb) -{ - mpi_limb_t cy_limb; - mpi_size_t j; - mpi_limb_t prod_high, prod_low; - - /* The loop counter and index J goes from -S1_SIZE to -1. This way - * the loop becomes faster. */ - j = -s1_size; - - /* Offset the base pointers to compensate for the negative indices. */ - s1_ptr -= j; - res_ptr -= j; - - cy_limb = 0; - do { - umul_ppmm(prod_high, prod_low, s1_ptr[j], s2_limb); - prod_low += cy_limb; - cy_limb = (prod_low < cy_limb ? 1 : 0) + prod_high; - res_ptr[j] = prod_low; - } while (++j); - - return cy_limb; -} |