annotate libtommath/bn_mp_init_copy.c @ 1928:333688ec53d0

Handle ecdsa-sk flags, reject no-touch For the time being Dropbear will only allow SK auth with default parameters, user-presence needs to be set. In future handling of authorized_keys option "no-touch-required" can be added. This code would also be refactored to share between ecdsa and ed25519 once I get hardware/emulation to test ed25519.
author Matt Johnston <matt@ucc.asn.au>
date Wed, 30 Mar 2022 21:06:15 +0800
parents 1051e4eea25a
children
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1 #include "tommath_private.h"
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2 #ifdef BN_MP_INIT_COPY_C
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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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6 /* creates "a" then copies b into it */
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7 mp_err mp_init_copy(mp_int *a, const mp_int *b)
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8 {
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9 mp_err err;
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10
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11 if ((err = mp_init_size(a, b->used)) != MP_OKAY) {
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12 return err;
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13 }
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14
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15 if ((err = mp_copy(b, a)) != MP_OKAY) {
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16 mp_clear(a);
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17 }
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18
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19 return err;
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20 }
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21 #endif