Session Key Generation
Original Publication Date: 1978-Apr-01
Included in the Prior Art Database: 2005-Feb-20
Operational or working keys are used in cryptographic systems for enciphering and deciphering data. In communication security applications, the operational key is a time-variant session key KS, which is provided for protecting communicated data and is different for each communication session between two stations in a communication network. In file security applications the operational key is a time-variant file key KF, which is provided for protecting file data and is different for each data file.