4 typedef void (*hashfunc_t) (unsigned char *out, unsigned char *in, int n);
6 hashfunc_t hfunc, int hlen, int hblock,
8 unsigned char *in, int n,
9 unsigned char *key, int k
12 #define HMAC_MDFOUR_16BYTES(out, in, n, key, k) hmac(mdfour, 16, 64, out, in, n, key, k)