Phase2
Phase2((u_int8_t *)wepseed, k->k_key, ctx->txttak, k->k_tsc & 0xffff);
Phase2((u_int8_t *)wepseed, k->k_key, ctx->rxttak, tsc & 0xffff);
static void Phase2(byte *, const byte *, const u16b *, u16b);