36 lines
1010 B
C
36 lines
1010 B
C
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#define TEST_NAME "auth7"
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#include "cmptest.h"
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static unsigned char key[32];
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static unsigned char c[600];
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static unsigned char a[64];
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int main(void)
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{
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size_t clen;
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for (clen = 0; clen < sizeof c; ++clen) {
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crypto_auth_keygen(key);
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randombytes_buf(c, clen);
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crypto_auth_hmacsha512(a, c, clen, key);
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if (crypto_auth_hmacsha512_verify(a, c, clen, key) != 0) {
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printf("fail %u\n", (unsigned int) clen);
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return 100;
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}
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if (clen > 0) {
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c[(size_t) rand() % clen] += 1 + (rand() % 255);
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if (crypto_auth_hmacsha512_verify(a, c, clen, key) == 0) {
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printf("forgery %u\n", (unsigned int) clen);
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return 100;
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}
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a[rand() % sizeof a] += 1 + (rand() % 255);
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if (crypto_auth_hmacsha512_verify(a, c, clen, key) == 0) {
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printf("forgery %u\n", (unsigned int) clen);
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return 100;
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}
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}
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}
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return 0;
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}
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