U.S. patents available from 1976 to present.
U.S. patent applications available from 2005 to present.

Security system for data processing

Patent 4262329 Issued on April 14, 1981. Estimated Expiration Date: Icon_subject April 14, 1998. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.

Patent References

3796830

3798359

3798360

3798605

3806882

3906448

Electronic data processing security system and method
Patent #: 3931504
Issued on: 01/06/1976
Inventor: Jacoby

Block cipher system for data security Patent #: 3958081
Issued on: 05/18/1976
Inventor: Ehrsam ,   et al.

Inventors

Assignee

Application

No. 05/890468 filed on 03/27/1978

US Classes:

713/164, Security kernel or utility380/277, KEY MANAGEMENT713/155Central trusted authority provides computer authentication

Examiners

Primary: Shaw, Gareth D.
Assistant: Chan, E.

Attorney, Agent or Firm

International Classes

G06F 21/00 (20060101)
G06F 1/00 (20060101)

Abstract

A data processing security system employs a secure enclosure, such as a vault, for all cryptographic processes, and the maintenance of digital information in storage outside of the enclosure in encrypted form and when not in use by the host computer system, where the information is used in plain text form and which communicates with the enclosed encryption system by a standard interface.

Other References

  • Bisbey and Popeck, "Encapsulation: An Approach to Operating System Security" USC/Info. Sci. Inst. California, Oct. 73, pp. 666-675
  • "Encryption Methods in Data Networks", Blom et al. Ericsson Technics No. 2, 1978, pp. 74-105
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