| Abbreviation | Definition |
|---|---|
| SK | Spatial Key |
| SK | Stop Keying |
| SK | Strengthened Key |
| SK | Surrogate Key |
| SKA | Secret Key Algorithm |
| SKIA | Secure Key Issuing Authority |
| SKIP | Simple Key Management for Internet Protocols |
| SKL | Simple Key Loader |
| SKL | Site Key Library |
| SKM | Standard Key Management |
| SKMM | Standard Key Management Module |
| SKMP | Standard Key Management Protocol |
| SKS | Smart Key System |
| SKS | Synchronizing Key Server |
| SKT | Sectioned Key Tree |
| SKU | Security Kernel Unit |
| SLAM | Site Logging And Monitoring |
| SLED | Specification Language for Encoding and Decoding |
| SLR | Steam Lock Release |
| SMC | Super Map Controller |