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Data Communications Hardware and Software
Programming for Receive Mode
LowLevel Transmit Monitor LLXMT
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algorithm alphabet application application software ARPANET bit pattern block buffer bytes channel cipher ciphertext CNCP communications software compression computer system control character control message cost cryptanalyst cryptographic cryptographic system data base data communications data compression Data Encryption Standard data link data message data processing datagram DDCMP deciphering designed devices distributed electronic mail enciphered equipment error control example facsimile Figure frame functions header Hellman HLXMT host IEEE Trans implementation Infotex input keystream keywheels known plaintext layer lease link control logical machine method mode modem monitor munications network architecture node operation output packet problem processor programs protocol public key cryptosystem rotor machine rotors running key cipher S-boxes SDLC shift register specific standards structure synchronous systems network architecture techniques telephone Teletex terminal tion transmission transmitted utilized Videotex word processing