Cryptographic Systems
What are Cryptographic Systems?
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Confidentiality has always been the major goal of cryptography. However, today much more is expected, namely - authentication, integrity, and non-repudiation. Cryptographic systems have evolved as a packaged set of countermeasures for protecting dialogues.
Cryptographic systems typically include the following for each dialog:
handshaking stage 1 - initial negotiation of security parameters for the chosen cipher suitehandshaking stage 2 - mutual authenticationhandshaking stage 3 - secure exchange of keys and other secretsongoing communication stage - message by message
Two important cryptographic systems are IPSec and SSL.
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