 |
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| multichannel encryption; multiplex link encryption; multiplexed ciphering; multiplexed encryption | |||
| bulk ciphering; bulk encryption | |||
| групповое шифрование: 10 phrases in 5 subjects |
| Cryptography | 1 |
| Electronics | 1 |
| Information security and data protection | 2 |
| Military | 2 |
| Security systems | 4 |