| Abbreviation | Definition |
|---|---|
| ROS | Remote Operations Security |
| RPA | Remote Password Authentication |
| RPA | Remote Patron Authentication |
| RPC | Region Protection Control |
| RPCA | Responsable du Plan de Continuité d'Activité |
| RPG | Random Password Generator |
| RPG | Real Private Group |
| RPK | Rapid Public Key |
| RPKS | Random Pairwise Keys Scheme |
| RPL | Requested Privilege Level |
| RPSS | Reverse Proxy Security Server |
| RPSS | Routing Policy System Security |
| RRD | Resonant Reed Decoder |
| RSAES-OAEP | Rivest-Shamir-Adleman Encryption Scheme - Optimal Asymmetric Encryption Padding |
| RSTR | Request Security Token Response |
| RTAL | Real-Time Audit Log |
| RTP | Real-Time Protection |
| RUID | Real User IDentification |
| RUIM | Removable User Identity Module |
| R-UIM | Removable User Identity Module |