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Crypto microprocessor that executes enciphered programs

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • G06K-005/00
  • H04L-009/00
출원번호 US-0279833 (1981-07-02)
발명자 / 주소
  • Best Robert M. (16016 9th Ave. NE. Seattle WA 98155)
인용정보 피인용 횟수 : 223  인용 특허 : 10

초록

A microprocessor for executing computer programs which are stored in cipher to prevent software piracy. Such a crypto-microprocessor deciphers the enciphered program piecemeal as it executes it, so that a large enciphered program can be securely executed without disclosing the deciphered program or

대표청구항

A method of protecting a program of executable instructions during execution, comprising the steps of: storing said program in enciphered form as a plurality of addressable portions; generating a digital address for addressing a portion of said enciphered program; cryptographically scrambling togeth

이 특허에 인용된 특허 (10)

  1. Ehrsam William Friedrich (Hurley NY) Meyer Carl H. W. (Kingston NY) Powers Robert Lowell (West Hurley NY) Prentice Paul Norman (Hyde Park NY) Smith John Lynn (Woodstock NY) Tuchman Walter Leonard (Wo, Block cipher system for data security.
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