109 lines
3.4 KiB
C
109 lines
3.4 KiB
C
// main.c
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// 19-Nov-11 Markku-Juhani O. Saarinen <mjos@iki.fi>
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#include <stdio.h>
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#include <string.h>
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#include "sha3.h"
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// read a hex string, return byte length or -1 on error.
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static int test_hexdigit(char ch)
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{
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if (ch >= '0' && ch <= '9')
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return ch - '0';
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if (ch >= 'A' && ch <= 'F')
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return ch - 'A' + 10;
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if (ch >= 'a' && ch <= 'f')
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return ch - 'a' + 10;
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return -1;
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}
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static int test_readhex(uint8_t *buf, const char *str, int maxbytes)
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{
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int i, h, l;
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for (i = 0; i < maxbytes; i++) {
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h = test_hexdigit(str[2 * i]);
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if (h < 0)
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return i;
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l = test_hexdigit(str[2 * i + 1]);
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if (l < 0)
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return i;
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buf[i] = (h << 4) + l;
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}
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return i;
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}
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// returns zero on success, nonzero + stderr messages on failure
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int test_sha3()
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{
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// message / digest pairs, lifted from ShortMsgKAT_SHA3-xxx.txt files
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// in the official package: https://github.com/gvanas/KeccakCodePackage
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const char *testvec[][2] = {
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{ // SHA3-224, corner case with 0-length message
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"",
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"6B4E03423667DBB73B6E15454F0EB1ABD4597F9A1B078E3F5B5A6BC7"
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},
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{ // SHA3-256, short message
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"9F2FCC7C90DE090D6B87CD7E9718C1EA6CB21118FC2D5DE9F97E5DB6AC1E9C10",
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"2F1A5F7159E34EA19CDDC70EBF9B81F1A66DB40615D7EAD3CC1F1B954D82A3AF"
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},
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{ // SHA3-384, exact block size
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"E35780EB9799AD4C77535D4DDB683CF33EF367715327CF4C4A58ED9CBDCDD486"
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"F669F80189D549A9364FA82A51A52654EC721BB3AAB95DCEB4A86A6AFA93826D"
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"B923517E928F33E3FBA850D45660EF83B9876ACCAFA2A9987A254B137C6E140A"
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"21691E1069413848",
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"D1C0FA85C8D183BEFF99AD9D752B263E286B477F79F0710B0103170173978133"
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"44B99DAF3BB7B1BC5E8D722BAC85943A"
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},
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{ // SHA3-512, multiblock message
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"3A3A819C48EFDE2AD914FBF00E18AB6BC4F14513AB27D0C178A188B61431E7F5"
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"623CB66B23346775D386B50E982C493ADBBFC54B9A3CD383382336A1A0B2150A"
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"15358F336D03AE18F666C7573D55C4FD181C29E6CCFDE63EA35F0ADF5885CFC0"
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"A3D84A2B2E4DD24496DB789E663170CEF74798AA1BBCD4574EA0BBA40489D764"
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"B2F83AADC66B148B4A0CD95246C127D5871C4F11418690A5DDF01246A0C80A43"
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"C70088B6183639DCFDA4125BD113A8F49EE23ED306FAAC576C3FB0C1E256671D"
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"817FC2534A52F5B439F72E424DE376F4C565CCA82307DD9EF76DA5B7C4EB7E08"
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"5172E328807C02D011FFBF33785378D79DC266F6A5BE6BB0E4A92ECEEBAEB1",
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"6E8B8BD195BDD560689AF2348BDC74AB7CD05ED8B9A57711E9BE71E9726FDA45"
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"91FEE12205EDACAF82FFBBAF16DFF9E702A708862080166C2FF6BA379BC7FFC2"
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}
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};
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int i, fails, msg_len, sha_len;
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uint8_t sha[64], buf[64], msg[256];
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fails = 0;
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for (i = 0; i < 4; i++) {
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memset(sha, 0, sizeof(sha));
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memset(buf, 0, sizeof(buf));
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memset(msg, 0, sizeof(msg));
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msg_len = test_readhex(msg, testvec[i][0], sizeof(msg));
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sha_len = test_readhex(sha, testvec[i][1], sizeof(sha));
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sha3(msg, msg_len, buf, sha_len);
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if (memcmp(sha, buf, sha_len) != 0) {
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fails++;
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fprintf(stderr, "[%d] SHA3-%d, len %d test FAILED.\n",
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i, sha_len * 8, msg_len);
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}
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}
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return fails;
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}
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// main
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int main(int argc, char **argv)
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{
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if (test_sha3() == 0)
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printf("SHA-3 Self-Test OK!\n");
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return 0;
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}
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