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Field of the Invention

CRYPTOGRAPHIC ACCESS AND LABELING SYSTEM

This invention relates in general to a cryptographic control system.  Many encryption systems use a publicly known mathematical encryption algorithm that is initialized with a privately known, secret key or vector.  The present invention in particular relates to a system of managing the encrypting keys, which is one of the means by which access to private information protected by cryptography is controlled.  Because keys or vectors are usually lengthy alphanumeric numbers that are difficult to remember, many encryption systems use a rememberable word or phrase, called passwords or passphrases, respectively, to initiate a key generation system.  The present invention also relates to a computer program and a programmed computer system which permits or denies access to protected data by the use of a passphrase.  Sophisticated encryption systems usually use labels, which are words or information that are related to the message being encrypted, that are encrypted and removeably attached to the message.  The present invention also relates to a computer program and a programmed computer system that generates encrypted labels for attachment to a message as a header or trailer thereof.  In addition, the present invention is related to a computer program and a programmed computer system that can reverse the process and decrypt a message, including the label information.

 

 

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