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annotate libtomcrypt/src/misc/compare_testvector.c @ 1659:d32bcb5c557d

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Add Ed25519 support (#91) * Add support for Ed25519 as a public key type Ed25519 is a elliptic curve signature scheme that offers better security than ECDSA and DSA and good performance. It may be used for both user and host keys. OpenSSH key import and fuzzer are not supported yet. Initially inspired by Peter Szabo. * Add curve25519 and ed25519 fuzzers * Add import and export of Ed25519 keys
author Vladislav Grishenko <themiron@users.noreply.github.com>
date Wed, 11 Mar 2020 21:09:45 +0500
parents 6dba84798cd5
children
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rev   line source
1471
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 */
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9
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10 #include "tomcrypt.h"
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11
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12 /**
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13 @file compare_testvector.c
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14 Function to compare two testvectors and print a (detailed) error-message if required, Steffen Jaeckel
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15 */
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16
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17 #if defined(LTC_TEST) && defined(LTC_TEST_DBG)
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18 static void _print_hex(const char* what, const void* v, const unsigned long l)
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19 {
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20 const unsigned char* p = v;
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21 unsigned long x, y = 0, z;
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22 fprintf(stderr, "%s contents: \n", what);
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23 for (x = 0; x < l; ) {
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24 fprintf(stderr, "%02X ", p[x]);
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25 if (!(++x % 16) || x == l) {
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26 if((x % 16) != 0) {
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27 z = 16 - (x % 16);
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28 if(z >= 8)
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29 fprintf(stderr, " ");
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30 for (; z != 0; --z) {
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31 fprintf(stderr, " ");
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32 }
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33 }
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34 fprintf(stderr, " | ");
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35 for(; y < x; y++) {
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36 if((y % 8) == 0)
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37 fprintf(stderr, " ");
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38 if(isgraph(p[y]))
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39 fprintf(stderr, "%c", p[y]);
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40 else
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41 fprintf(stderr, ".");
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42 }
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43 fprintf(stderr, "\n");
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44 }
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45 else if((x % 8) == 0) {
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46 fprintf(stderr, " ");
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47 }
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48 }
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49 }
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50 #endif
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51
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52 /**
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53 Compare two test-vectors
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54
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55 @param is The data as it is
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56 @param is_len The length of is
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57 @param should The data as it should
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58 @param should_len The length of should
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59 @param what The type of the data
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60 @param which The iteration count
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61 @return 0 on equality, -1 or 1 on difference
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62 */
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63 int compare_testvector(const void* is, const unsigned long is_len, const void* should, const unsigned long should_len, const char* what, int which)
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64 {
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65 int res = 0;
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66 if(is_len != should_len)
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67 res = is_len > should_len ? -1 : 1;
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68 else
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69 res = XMEMCMP(is, should, is_len);
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70
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71 #if defined(LTC_TEST) && defined(LTC_TEST_DBG)
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72 if (res != 0) {
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73 fprintf(stderr, "Testvector #%i of %s failed:\n", which, what);
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74 _print_hex("SHOULD", should, should_len);
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75 _print_hex("IS ", is, is_len);
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76 }
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77 #else
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78 LTC_UNUSED_PARAM(which);
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79 LTC_UNUSED_PARAM(what);
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80 #endif
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81
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82 return res;
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83 }
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84
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85 /* ref: $Format:%D$ */
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86 /* git commit: $Format:%H$ */
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87 /* commit time: $Format:%ai$ */