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| link encryption | |||
| шифрование связи: 45 phrases in 11 subjects |
| Computer networks | 1 |
| Computers | 1 |
| Cryptography | 3 |
| Electronics | 2 |
| Information security and data protection | 14 |
| Information technology | 1 |
| Mass media | 7 |
| Military | 3 |
| Security systems | 8 |
| Technology | 2 |
| Telecommunications | 3 |