Mercurial > dropbear

annotate libtommath/bn_mp_abs.c @ 1885:5d8dbb6fdab7

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Fix SSH_PUBKEYINFO, limit characters, add tests We fix a bad_bufptr() failure from a previous commit. We now limit the allowed characters to those that will definitely be safe in a shell. Some scripts/programs may use arbitrary environment variables without escaping correctly - that could be a problem in a restricted environment. The current allowed set is a-z A-Z 0-9 .,_-+@ This also adds a test for SSH_PUBKEYINFO, by default it only runs under github actions (or "act -j build").
author Matt Johnston <matt@ucc.asn.au>
date Wed, 16 Mar 2022 17:17:23 +0800
parents 1051e4eea25a
children
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f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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1 #include "tommath_private.h"
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2 #ifdef BN_MP_ABS_C
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1051e4eea25a Update LibTomMath to 1.2.0 (#84)
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3 /* LibTomMath, multiple-precision integer library -- Tom St Denis */
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4 /* SPDX-License-Identifier: Unlicense */
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5
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f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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6 /* b = |a|
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7 *
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8 * Simple function copies the input and fixes the sign to positive
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9 */
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10 mp_err mp_abs(const mp_int *a, mp_int *b)
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11 {
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12 mp_err err;
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1655
f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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14 /* copy a to b */
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parents: 1470
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15 if (a != b) {
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16 if ((err = mp_copy(a, b)) != MP_OKAY) {
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17 return err;
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parents: 1470
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18 }
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parents: 1470
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19 }
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Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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21 /* force the sign of b to positive */
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parents: 1470
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22 b->sign = MP_ZPOS;
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1655
f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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24 return MP_OKAY;
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25 }
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26 #endif