103 lines
2.9 KiB
C
103 lines
2.9 KiB
C
/*
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==============================================================================
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Name : aes_testvectors_CCM.h
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Author : polfosol
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Version : 1.1.0.0
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Copyright : copyright © 2024 - polfosol
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Description : checking the test vectors for AES-CCM
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==============================================================================
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*/
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#ifndef _TESTING_CCM_H_
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#define _TESTING_CCM_H_
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#include "aes_testvectors.h"
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#ifdef CCM_TEST_FILE
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static int verifyccm(uint8_t* key, uint8_t* i, uint8_t* p, uint8_t* a, uint8_t* c,
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size_t np, size_t na, char* r)
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{
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char sk[2 * AES_KEY_SIZE + 1], si[33], sp[80], sc[96], sa[80], msg[30];
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uint8_t tmp[64], v = 0;
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strcpy(msg, "passed the test");
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AES_CCM_encrypt(key, i, p, np, a, na, tmp, tmp + np);
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if (memcmp(c, tmp, np + CCM_TAG_LEN))
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{
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strcpy(msg, "encrypt failure");
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v = 1;
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}
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memset(tmp, 0xcc, sizeof tmp);
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*sk = AES_CCM_decrypt(key, i, c, np, a, na, CCM_TAG_LEN, tmp);
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if (*sk || memcmp(p, tmp, np))
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{
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sprintf(msg, "%sdecrypt failure", v ? "encrypt & " : "");
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v |= 2;
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}
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bytes2str(key, sk, AES_KEY_SIZE);
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bytes2str(i, si, CCM_NONCE_LEN);
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bytes2str(p, sp, np);
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bytes2str(a, sa, na);
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bytes2str(c, sc, np + CCM_TAG_LEN);
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sprintf(r, "%s\nK: %s\ni: %s\nP: %s\nA: %s\nC: %s", msg, sk, si, sp, sa, sc);
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return v;
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}
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static void aes_ccm_test(FILE** files, unsigned* count)
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{
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const char *linehdr[] = CCM_HEADLINES;
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char buffer[0x800], *value = NULL;
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size_t s[5] = { 0 };
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uint8_t j, n = 0, key[AES_KEY_SIZE], iv[16], p[64], c[80], a[64];
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while (fgets(buffer, sizeof buffer, *files) != NULL)
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{
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buffer[strcspn(buffer, "\n")] = 0;
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if (strlen(buffer) < 4) continue;
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for (j = 0; j < 5; j++)
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{
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if (strncmp(buffer, linehdr[j], strlen(linehdr[j])) == 0)
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{
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value = strrchr(buffer, ' ') + 1;
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s[j] = strlen(value) / 2;
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n += j > 2;
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break;
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}
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}
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switch (j)
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{
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case 0:
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if (s[0] == AES_KEY_SIZE) str2bytes(value, key);
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break;
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case 1:
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if (s[1] == CCM_NONCE_LEN) str2bytes(value, iv);
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break;
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case 2:
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str2bytes(value, a);
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break;
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case 3:
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str2bytes(value, p);
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break;
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case 4:
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s[4] -= CCM_TAG_LEN;
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str2bytes(value, c);
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break;
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}
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if (n == 2)
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{
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if (s[0] == AES_KEY_SIZE && s[1] == CCM_NONCE_LEN && s[3] == s[4])
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{
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n = verifyccm(key, iv, p, a, c, s[3], s[2], buffer);
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fprintf(files[2 - !n], "%s\n", buffer); /* save the log */
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++count[0];
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if (n & 1) ++count[1];
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if (n & 2) ++count[2];
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}
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n = 0;
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}
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}
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}
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#endif
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#endif /* header guard */
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