Information Security . Information Security Requirements. Confidentiality: •Protection from disclosure to unauthorised persons Access control: Unauthorised users are kept out Authentication: Assurance of identity of person or originator of data
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A typical security protocol provides one or more services
•Services are built from mechanisms
•Mechanisms are implemented using algorithms
Data Formats conventional encryption keysOne obviously-correct format for secured content allows straightforward one-pass processing for encapsulation and decapsulation
The further down you go, the more transparent it is
The further up you go, the easier it is to deploy