| Subject | English | Latvian |
| IT, transp. | authentication of messages | autentificēšana |
| IT, transp. | message authentication | autentificēšana |
| comp., MS | Message Authentication Code | ziņojuma autentifikācijas kods (An algorithm that allows a receiver to ensure that a block of data has retained its integrity from the time it was sent until the time it was received) |