| Subject | English | French |
| comp., MS | Challenge Handshake Authentication Protocol A challenge-response authentication protocol for Point-to-Point Protocol (PPP) connections described in RFC 1994. It uses the industry-standard MD5 hashing algorithm to hash the combination of a challenge string issued by the authenticating server and the user's password in the response | protocole CHAP (Challenge Handshake Authentication Protocol) |
| comp. | handshake control | commande sur base de quittances |
| comp. | handshake I/O control | commande d’E/S en régime de quittance |
| comp. | handshake mode | mode de régime à quittance |