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annotate libtommath/bn_mp_init.c @ 1938:77bc00dcc19f default tip main master

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Bump version to 2022.82
author Matt Johnston <matt@ucc.asn.au>
date Fri, 01 Apr 2022 14:43:27 +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
diff changeset
1 #include "tommath_private.h"
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2 #ifdef BN_MP_INIT_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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5
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6 /* init a new mp_int */
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7 mp_err mp_init(mp_int *a)
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8 {
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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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9 /* allocate memory required and clear it */
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parents: 1655
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10 a->dp = (mp_digit *) MP_CALLOC((size_t)MP_PREC, sizeof(mp_digit));
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Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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11 if (a->dp == NULL) {
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parents: 1470
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12 return MP_MEM;
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Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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13 }
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14
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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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15 /* set the used to zero, allocated digits to the default precision
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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16 * and sign to positive */
f52919ffd3b1 update ltm to 1.1.0 and enable FIPS 186.4 compliant key-generation (#79)
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parents: 1470
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17 a->used = 0;
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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18 a->alloc = MP_PREC;
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Steffen Jaeckel <s_jaeckel@gmx.de>
parents: 1470
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19 a->sign = MP_ZPOS;
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20
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parents: 1470
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21 return MP_OKAY;
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22 }
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23 #endif