CRYPTOGRAPHIC KEY MANAGEMENT SYSTEMS COMPRISING

Brand	Owner (click to sort)	Address	Description
KEYNET	TECHNICAL COMMUNICATIONS CORPORATION	100 Domino Drive Concord MA 01742	cryptographic key management systems comprising key storage encryption units networked with a control computer, and software therefor;KEY NET;
KEYNET	TECHNICAL COMMUNICATIONS CORPORATION	100 Domino Drive Concord MA 01742	Cryptographic Key Management Systems Comprising Key Storage Encryption Units For Networking With A Control Computer, Computer-Operating Software There-for and User's Manuals Sold As A Unit Therewith;KEY NETWORK;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

The invention is directed to a data-processing system comprising a processor, a second encrypted cryptographic key stored in a first persistent memory, and a cryptographic co-processor that comprises a first register and a second register. The cryptographic co-processor serves for decrypting in a decryption step the second encrypted cryptographic key, thereby generating therefrom a second unencrypted cryptographic key that is usable by the processor for executing an operation. For the decryption step the first register is loadable with the second encrypted cryptographic key and the second register is loadable with a first cryptographic key. The resulting second unencrypted cryptographic key is maintainable in one of the registers for being used by the cryptographic co-processor for decrypting encrypted information or encrypting unencrypted information for the operation.