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- #include "api.h"
- #include "randombytes.h"
- #include "hal.h"
-
- #include <string.h>
-
- #define NTESTS 10
-
- const uint8_t canary[8] = {
- 0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF
- };
-
- /* allocate a bit more for all keys and messages and
- * make sure it is not touched by the implementations.
- */
- static void write_canary(uint8_t *d) {
- for (size_t i = 0; i < 8; i++) {
- d[i] = canary[i];
- }
- }
-
- static int check_canary(const uint8_t *d) {
- for (size_t i = 0; i < 8; i++) {
- if (d[i] != canary[i]) {
- return -1;
- }
- }
- return 0;
- }
-
- static int test_keys(void)
- {
- unsigned char key_a[CRYPTO_BYTES+16], key_b[CRYPTO_BYTES+16];
- unsigned char pk[CRYPTO_PUBLICKEYBYTES+16];
- unsigned char sendb[CRYPTO_CIPHERTEXTBYTES+16];
- unsigned char sk_a[CRYPTO_SECRETKEYBYTES+16];
-
- write_canary(key_a); write_canary(key_a+sizeof(key_a)-8);
- write_canary(key_b); write_canary(key_b+sizeof(key_b)-8);
- write_canary(pk); write_canary(pk+sizeof(pk)-8);
- write_canary(sendb); write_canary(sendb+sizeof(sendb)-8);
- write_canary(sk_a); write_canary(sk_a+sizeof(sk_a)-8);
-
-
- int i;
-
- for(i=0; i<NTESTS; i++)
- {
- //Alice generates a public key
- crypto_kem_keypair(pk+8, sk_a+8);
- hal_send_str("DONE key pair generation!");
-
- //Bob derives a secret key and creates a response
- crypto_kem_enc(sendb+8, key_b+8, pk+8);
- hal_send_str("DONE encapsulation!");
-
- //Alice uses Bobs response to get her secret key
- crypto_kem_dec(key_a+8, sendb+8, sk_a+8);
- hal_send_str("DONE decapsulation!");
-
- if(memcmp(key_a+8, key_b+8, CRYPTO_BYTES))
- {
- hal_send_str("ERROR KEYS\n");
- }
- else if(check_canary(key_a) || check_canary(key_a+sizeof(key_a)-8) ||
- check_canary(key_b) || check_canary(key_b+sizeof(key_b)-8) ||
- check_canary(pk) || check_canary(pk+sizeof(pk)-8) ||
- check_canary(sendb) || check_canary(sendb+sizeof(sendb)-8) ||
- check_canary(sk_a) || check_canary(sk_a+sizeof(sk_a)-8))
- {
- hal_send_str("ERROR canary overwritten\n");
- }
- else
- {
- hal_send_str("OK KEYS\n");
- }
- }
-
- return 0;
- }
-
-
- int main(void)
- {
- hal_setup(CLOCK_FAST);
-
- int i;
- // marker for automated testing
- for(i=0;i<10;i++)
- hal_send_str("==========================");
- test_keys();
- hal_send_str("## That's all folks! #");
-
- while(1);
-
- return 0;
- }
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