Mercurial > dropbear
comparison libtomcrypt/src/pk/ecc/ltc_ecc_is_valid_idx.c @ 1471:6dba84798cd5
Update to libtomcrypt 1.18.1, merged with Dropbear changes
author | Matt Johnston <matt@ucc.asn.au> |
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date | Fri, 09 Feb 2018 21:44:05 +0800 |
parents | f849a5ca2efc |
children |
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1470:8bba51a55704 | 1471:6dba84798cd5 |
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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 ltc_ecc_is_valid_idx.c | 18 @file ltc_ecc_is_valid_idx.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 /** Returns whether an ECC idx is valid or not | 24 /** Returns whether an ECC idx is valid or not |
27 @param n The idx number to check | 25 @param n The idx number to check |
28 @return 1 if valid, 0 if not | 26 @return 1 if valid, 0 if not |
29 */ | 27 */ |
30 int ltc_ecc_is_valid_idx(int n) | 28 int ltc_ecc_is_valid_idx(int n) |
31 { | 29 { |
32 int x; | 30 int x; |
33 | 31 |
34 for (x = 0; ltc_ecc_sets[x].size != 0; x++); | 32 for (x = 0; ltc_ecc_sets[x].size != 0; x++); |
38 } | 36 } |
39 return 0; | 37 return 0; |
40 } | 38 } |
41 | 39 |
42 #endif | 40 #endif |
43 /* $Source$ */ | 41 /* ref: $Format:%D$ */ |
44 /* $Revision$ */ | 42 /* git commit: $Format:%H$ */ |
45 /* $Date$ */ | 43 /* commit time: $Format:%ai$ */ |
46 | 44 |