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88 lines
2.4 KiB
88 lines
2.4 KiB
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
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*
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* LibTomCrypt is a library that provides various cryptographic
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* algorithms in a highly modular and flexible manner.
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*
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* The library is free for all purposes without any express
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* guarantee it works.
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*/
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#include "tomcrypt.h"
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/**
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@file compare_testvector.c
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Function to compare two testvectors and print a (detailed) error-message if required, Steffen Jaeckel
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*/
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#if defined(LTC_TEST) && defined(LTC_TEST_DBG)
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static void _print_hex(const char* what, const void* v, const unsigned long l)
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{
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const unsigned char* p = v;
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unsigned long x, y = 0, z;
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fprintf(stderr, "%s contents: \n", what);
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for (x = 0; x < l; ) {
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fprintf(stderr, "%02X ", p[x]);
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if (!(++x % 16) || x == l) {
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if((x % 16) != 0) {
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z = 16 - (x % 16);
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if(z >= 8)
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fprintf(stderr, " ");
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for (; z != 0; --z) {
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fprintf(stderr, " ");
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}
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}
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fprintf(stderr, " | ");
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for(; y < x; y++) {
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if((y % 8) == 0)
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fprintf(stderr, " ");
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if(isgraph(p[y]))
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fprintf(stderr, "%c", p[y]);
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else
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fprintf(stderr, ".");
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}
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fprintf(stderr, "\n");
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}
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else if((x % 8) == 0) {
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fprintf(stderr, " ");
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}
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}
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}
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#endif
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/**
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Compare two test-vectors
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@param is The data as it is
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@param is_len The length of is
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@param should The data as it should
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@param should_len The length of should
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@param what The type of the data
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@param which The iteration count
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@return 0 on equality, -1 or 1 on difference
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*/
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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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{
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int res = 0;
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if(is_len != should_len)
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res = is_len > should_len ? -1 : 1;
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else
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res = XMEMCMP(is, should, is_len);
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#if defined(LTC_TEST) && defined(LTC_TEST_DBG)
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if (res != 0) {
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fprintf(stderr, "Testvector #%i of %s failed:\n", which, what);
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_print_hex("SHOULD", should, should_len);
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_print_hex("IS ", is, is_len);
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}
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#else
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LTC_UNUSED_PARAM(which);
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LTC_UNUSED_PARAM(what);
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#endif
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return res;
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}
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/* ref: $Format:%D$ */
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/* git commit: $Format:%H$ */
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/* commit time: $Format:%ai$ */
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