| Abbreviation | Definition |
|---|---|
| ECMEA | Enhanced Cellular Message Encryption Algorithm |
| ECPP | Efficient Conditional Privacy Preservation |
| ED | Encryption Device |
| EDAC | Evidence-based Design Accreditation and Certification |
| EDES | Electronic Document Encryption System |
| EDESP | Endorsed Data Encryption Standard Product |
| EDESPL | Endorsed Data Encryption Standard Products List |
| EDS | Emergency Disaster Services |
| EED | Encryption and Encapsulation Device |
| EES | Escrowed Encryption Standard |
| EFS | Encrypting File System |
| EIA | Entry Identification and Access |
| EKG | Encryption Key Generator |
| EKM | Electronic Key Management |
| EKMC | Electronic Key Management Center |
| EKMP | Electronic Key Management Protocol |
| EKMS | Electronic Key Management System |
| EKOR | Trojan Backdoor.Sdbot.AQ computer virus |
| EL | Encryption Licensing |
| ELA | Encryption Licensing Arrangement |