debug_ge("Z", s->k.g, Z); )
derive(&s->k, R, Z, "cipher", s->k.cc->name, s->k.cc->keysz, &kk, &ksz);
c = GC_INIT(s->k.cc, kk, ksz);
- derive(&s->k, R, Z, "mac", s->k.cc->name, s->k.cc->keysz, &kk, &ksz);
+ derive(&s->k, R, Z, "mac", s->k.mc->name, s->k.mc->keysz, &kk, &ksz);
m = GM_KEY(s->k.mc, kk, ksz);
/* Find where the MAC tag is. */