Computer System Implemented Method for Generating a Symmetric Encryption Key Used for Encrypting and Decrypting a Computer System User's Hidden Data

摘要

Aspects of invention include: methods and apparatus implemented in a computer system, the methods and apparatus producing a symmetric encryption key termed a Cipherkey produced for protecting a computer system user's hidden data from unauthorised access by an intruder. The methods and apparatus receive a first input item being a user supplied Secret, and a second input item termed Encrypted Random Data. A computer system performs a precise method of computation based on this input. Six steps are disclosed that result in a hash value result termed a Cipherkey, a hash value that can be used as a symmetric encryption key for protecting a computer system user's hidden data.