Mercurial > dropbear
annotate libtomcrypt/src/misc/compare_testvector.c @ 1938:77bc00dcc19f default tip main master
Bump version to 2022.82
author | Matt Johnston <matt@ucc.asn.au> |
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date | Fri, 01 Apr 2022 14:43:27 +0800 |
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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: $Format:%ai$ */ |