7.3. Using Cryptographic Systems
A cryptographic system is a system, method, or process that is used to provide encryption and decryption. It may be a hardware, software, or manually performed process. Cryptographic systems exist for the same reasons that security exists: to provide confidentiality, integrity, authentication, nonrepudiation, and access control. The following sections discuss these issues within the framework of cryptographic systems.
One of the major reasons to implement a cryptographic system is to ensure the confidentiality of the information being used. Confidentiality may be intended to prevent the unauthorized disclosure of information in a local network or to prevent the unauthorized disclosure ...