system indicator
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- [A] symbol or group of symbols in an off-line encrypted message identifying the specific cryptosystem or key used in the encryption. [INFOSEC-99]
ATIS - Cite This Source - This Definition - asymmetric encryption, BLACK signal, bulk encryption, ciphertext string, ciphony, data separation, encryption, encryption element, End to End Encryption, initialize, irreversible encryption, Link Encryption, multiplex link encryption, offset, offset encryption, one-way encryption, out-of-band notification, radio channel privacy, superencryption, traffic encryption key (TEK), Transposition