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comparison libtomcrypt/src/pk/ecc/ecc_ansi_x963_import.c @ 1471:6dba84798cd5

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Update to libtomcrypt 1.18.1, merged with Dropbear changes
author Matt Johnston <matt@ucc.asn.au>
date Fri, 09 Feb 2018 21:44:05 +0800
parents f849a5ca2efc
children
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1470:8bba51a55704 1471:6dba84798cd5
3 * LibTomCrypt is a library that provides various cryptographic 3 * LibTomCrypt is a library that provides various cryptographic
4 * algorithms in a highly modular and flexible manner. 4 * algorithms in a highly modular and flexible manner.
5 * 5 *
6 * The library is free for all purposes without any express 6 * The library is free for all purposes without any express
7 * guarantee it works. 7 * guarantee it works.
8 *
9 * Tom St Denis, [email protected], http://libtom.org
10 */ 8 */
11 9
12 /* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b 10 /* Implements ECC over Z/pZ for curve y^2 = x^3 - 3x + b
13 * 11 *
14 * All curves taken from NIST recommendation paper of July 1999 12 * All curves taken from NIST recommendation paper of July 1999
17 #include "tomcrypt.h" 15 #include "tomcrypt.h"
18 16
19 /** 17 /**
20 @file ecc_ansi_x963_import.c 18 @file ecc_ansi_x963_import.c
21 ECC Crypto, Tom St Denis 19 ECC Crypto, Tom St Denis
22 */ 20 */
23 21
24 #ifdef LTC_MECC 22 #ifdef LTC_MECC
25 23
26 /** Import an ANSI X9.63 format public key 24 /** Import an ANSI X9.63 format public key
27 @param in The input data to read 25 @param in The input data to read
28 @param inlen The length of the input data 26 @param inlen The length of the input data
29 @param key [out] destination to store imported key \ 27 @param key [out] destination to store imported key \
30 */ 28 */
31 int ecc_ansi_x963_import(const unsigned char *in, unsigned long inlen, ecc_key *key) 29 int ecc_ansi_x963_import(const unsigned char *in, unsigned long inlen, ecc_key *key)
34 } 32 }
35 33
36 int ecc_ansi_x963_import_ex(const unsigned char *in, unsigned long inlen, ecc_key *key, ltc_ecc_set_type *dp) 34 int ecc_ansi_x963_import_ex(const unsigned char *in, unsigned long inlen, ecc_key *key, ltc_ecc_set_type *dp)
37 { 35 {
38 int x, err; 36 int x, err;
39 37
40 LTC_ARGCHK(in != NULL); 38 LTC_ARGCHK(in != NULL);
41 LTC_ARGCHK(key != NULL); 39 LTC_ARGCHK(key != NULL);
42 40
43 /* must be odd */ 41 /* must be odd */
44 if ((inlen & 1) == 0) { 42 if ((inlen & 1) == 0) {
45 return CRYPT_INVALID_ARG; 43 return CRYPT_INVALID_ARG;
46 } 44 }
47 45
97 return err; 95 return err;
98 } 96 }
99 97
100 #endif 98 #endif
101 99
102 /* $Source$ */ 100 /* ref: $Format:%D$ */
103 /* $Revision$ */ 101 /* git commit: $Format:%H$ */
104 /* $Date$ */ 102 /* commit time: $Format:%ai$ */