97 lines
2.8 KiB
C
97 lines
2.8 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 : 1.2.0.0
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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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#include "aes_testvectors.h"
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#if defined(_TESTING_CCM_H_) ^ defined(CCM_TEST_FILE)
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#define _TESTING_CCM_H_
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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_KEYLENGTH + 1], si[30], 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, a, na, p, np, tmp);
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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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*r = AES_CCM_decrypt(key, i, a, na, c, np, tmp);
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if (*r || memcmp(p, tmp, np))
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{
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strcat(strcpy(msg, v ? "encrypt & " : ""), "decrypt failure");
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v |= 2;
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}
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bytes2str(key, sk, AES_KEYLENGTH);
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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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void aes_ccm_test(FILE** files, unsigned* count)
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{
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const char* head[] = 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 h, e = 0, key[32], iv[15], 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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for (h = strlen(buffer) < 4 ? 5 : 0; h < 5; ++h)
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{
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if (strncmp(buffer, head[h], strlen(head[h])) != 0) continue;
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value = strrchr(buffer, ' ') + 1;
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s[h] = strlen(value) / 2 - CCM_TAG_LEN * (h == 4);
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switch (h)
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{
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case 0:
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str2bytes(value, key);
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break;
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case 1:
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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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str2bytes(value, c);
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break;
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}
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e += (h == 3 || h == 4);
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}
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if (e == 2)
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{
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if (AES_KEYLENGTH == *s && CCM_NONCE_LEN == s[1] && s[3] == s[4])
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{
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e = verifyccm(key, iv, p, a, c, s[3], s[2], buffer);
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fprintf(files[2 - !e], "%s\n", buffer); /* save the log */
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++count[0];
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if (e & 1) ++count[1];
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if (e & 2) ++count[2];
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}
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e = 0;
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}
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}
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}
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#endif /* header guard */
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