C++ (Cpp) crypto_auth_hmacsha512_update Examples

Example #1

File: auth_hmacsha512256.c Project: Asunaya/RefinedGunz

int
crypto_auth_hmacsha512256_update(crypto_auth_hmacsha512256_state *state,
                                 const unsigned char             *in,
                                 unsigned long long               inlen)
{
    return crypto_auth_hmacsha512_update((crypto_auth_hmacsha512_state *) state,
                                         in, inlen);
}

Example #2

File: hmac_hmacsha512.c Project: 0njzy0/shadowsocks-libev

int
crypto_auth_hmacsha512(unsigned char *out, const unsigned char *in,
                       unsigned long long inlen, const unsigned char *k)
{
    crypto_auth_hmacsha512_state state;

    crypto_auth_hmacsha512_init(&state, k, crypto_auth_hmacsha512_KEYBYTES);
    crypto_auth_hmacsha512_update(&state, in, inlen);
    crypto_auth_hmacsha512_final(&state, out);

    return 0;
}

Example #3

File: metamorphic.c Project: chuckremes/rubinius

static void
mm_hmacsha512(void)
{
    crypto_auth_hmacsha512_state st;
    unsigned char *h, *h2;
    unsigned char *k;
    unsigned char *m;
    size_t         mlen;
    size_t         l1, l2;
    int            i;

    for (i = 0; i < MAX_ITER; i++) {
        mlen = randombytes_uniform(MAXLEN);
        m = (unsigned char *) sodium_malloc(mlen);
        k = (unsigned char *) sodium_malloc(crypto_auth_hmacsha512_KEYBYTES);
        h = (unsigned char *) sodium_malloc(crypto_auth_hmacsha512_BYTES);
        h2 = (unsigned char *) sodium_malloc(crypto_auth_hmacsha512_BYTES);

        crypto_auth_hmacsha512_keygen(k);
        randombytes_buf(m, mlen);

        crypto_auth_hmacsha512_init(&st, k, crypto_auth_hmacsha512_KEYBYTES);
        l1 = randombytes_uniform(mlen);
        l2 = randombytes_uniform(mlen - l1);
        crypto_auth_hmacsha512_update(&st, m, l1);
        crypto_auth_hmacsha512_update(&st, m + l1, l2);
        crypto_auth_hmacsha512_update(&st, m + l1 + l2, mlen - l1 - l2);
        crypto_auth_hmacsha512_final(&st, h);

        crypto_auth_hmacsha512(h2, m, mlen, k);

        assert(memcmp(h, h2, crypto_auth_hmacsha512_BYTES) == 0);

        sodium_free(h2);
        sodium_free(h);
        sodium_free(k);
        sodium_free(m);
    }
}