CRYPTO_STATUS sidhjs_secret (
uint8_t* public_key,
uint8_t* private_key,
uint8_t* secret
) {
int is_alice = sodium_compare(
public_key,
private_key + full_private_key_bytes,
full_public_key_bytes
);
if (is_alice == 1) {
public_key += public_key_bytes;
}
else if (is_alice == -1) {
is_alice = 0;
private_key += private_key_bytes;
}
else {
return CRYPTO_ERROR_INVALID_PARAMETER;
}
return sidhjs_secret_base(
public_key,
private_key,
secret,
is_alice
);
}
int main(void)
{
unsigned char buf1[1000];
unsigned char buf2[1000];
char buf3[33];
unsigned char buf4[4];
unsigned char nonce[24];
char nonce_hex[49];
const char *hex;
const char *hex_end;
size_t bin_len;
int i;
randombytes_buf(buf1, sizeof buf1);
memcpy(buf2, buf1, sizeof buf2);
printf("%d\n", sodium_memcmp(buf1, buf2, sizeof buf1));
sodium_memzero(buf1, 0U);
printf("%d\n", sodium_memcmp(buf1, buf2, sizeof buf1));
sodium_memzero(buf1, sizeof buf1 / 2);
printf("%d\n", sodium_memcmp(buf1, buf2, sizeof buf1));
printf("%d\n", sodium_memcmp(buf1, buf2, 0U));
sodium_memzero(buf2, sizeof buf2 / 2);
printf("%d\n", sodium_memcmp(buf1, buf2, sizeof buf1));
printf("%s\n",
sodium_bin2hex(buf3, 33U, (const unsigned char *)"0123456789ABCDEF",
16U));
hex = "Cafe : 6942";
sodium_hex2bin(buf4, sizeof buf4, hex, strlen(hex), ": ", &bin_len, &hex_end);
printf("%lu:%02x%02x%02x%02x\n", (unsigned long)bin_len, buf4[0], buf4[1],
buf4[2], buf4[3]);
printf("dt1: %ld\n", (long) (hex_end - hex));
hex = "Cafe : 6942";
sodium_hex2bin(buf4, sizeof buf4, hex, strlen(hex), ": ", &bin_len, NULL);
printf("%lu:%02x%02x%02x%02x\n", (unsigned long)bin_len, buf4[2], buf4[3],
buf4[2], buf4[3]);
hex = "deadbeef";
if (sodium_hex2bin(buf1, 1U, hex, 8U, NULL, &bin_len, &hex_end) != -1) {
printf("sodium_hex2bin() overflow not detected\n");
}
printf("dt2: %ld\n", (long) (hex_end - hex));
hex = "de:ad:be:eff";
if (sodium_hex2bin(buf1, 4U, hex, 12U, ":", &bin_len, &hex_end) != -1) {
printf("sodium_hex2bin() with an odd input length and a short output buffer\n");
}
printf("dt3: %ld\n", (long) (hex_end - hex));
hex = "de:ad:be:eff";
if (sodium_hex2bin(buf1, sizeof buf1, hex, 12U, ":", &bin_len, &hex_end) != 0) {
printf("sodium_hex2bin() with an odd input length\n");
}
printf("dt4: %ld\n", (long) (hex_end - hex));
hex = "de:ad:be:eff";
if (sodium_hex2bin(buf1, sizeof buf1, hex, 13U, ":", &bin_len, &hex_end) != 0) {
printf("sodium_hex2bin() with an odd input length\n");
}
printf("dt5: %ld\n", (long) (hex_end - hex));
memset(nonce, 0, sizeof nonce);
sodium_increment(nonce, sizeof nonce);
printf("%s\n", sodium_bin2hex(nonce_hex, sizeof nonce_hex,
nonce, sizeof nonce));
memset(nonce, 255, sizeof nonce);
sodium_increment(nonce, sizeof nonce);
printf("%s\n", sodium_bin2hex(nonce_hex, sizeof nonce_hex,
nonce, sizeof nonce));
nonce[1] = 1U;
sodium_increment(nonce, sizeof nonce);
printf("%s\n", sodium_bin2hex(nonce_hex, sizeof nonce_hex,
nonce, sizeof nonce));
nonce[1] = 0U;
sodium_increment(nonce, sizeof nonce);
printf("%s\n", sodium_bin2hex(nonce_hex, sizeof nonce_hex,
nonce, sizeof nonce));
nonce[0] = 255U;
nonce[2] = 255U;
sodium_increment(nonce, sizeof nonce);
printf("%s\n", sodium_bin2hex(nonce_hex, sizeof nonce_hex,
nonce, sizeof nonce));
for (i = 0; i < 1000; i++) {
bin_len = (size_t) randombytes_uniform(sizeof buf1);
randombytes_buf(buf1, bin_len);
randombytes_buf(buf2, bin_len);
if (memcmp(buf1, buf2, bin_len) *
sodium_compare(buf1, buf2, bin_len) < 0) {
printf("sodium_compare() failure with length=%u\n",
(unsigned int) bin_len);
}
memcpy(buf1, buf2, bin_len);
if (sodium_compare(buf1, buf2, bin_len)) {
printf("sodium_compare() equality failure with length=%u\n",
(unsigned int) bin_len);
}
}
return 0;
}