11 	uchar buf[8];  in checksum()  local
13 	memset(buf, 0, 8);  in checksum()
14 	encrypt(key, buf, 8);  in checksum()
15 	sprint(csum, "C %.2ux%.2ux%.2ux%.2ux", buf[0], buf[1], buf[2], buf[3]);  in checksum()
27 	uchar buf[8];  in netresp()  local
29 	memset(buf, 0, 8);  in netresp()
30 	snprint((char *)buf, sizeof buf, "%lud", chal);  in netresp()
31 	if(encrypt(key, buf, 8) < 0)  in netresp()
33 	chal = (buf[0]<<24)+(buf[1]<<16)+(buf[2]<<8)+buf[3];  in netresp()
87 	uchar buf[2*8];  in smartcheck()  local
90 	snprint((char*)buf, sizeof buf, "%lud        ", chal);  in smartcheck()
94 		c = buf[i];  in smartcheck()
103 		buf[i] = c | (cshi & 0xf0);  in smartcheck()
106 	encrypt(key, buf, 8);  in smartcheck()
108 		if(response[i] != buf[i] % 10 + '0')  in smartcheck()