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Database encryption and decryption circuit and method using subkeys 원문보기

IPC분류정보
국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판)
  • H04L-009/00
출원번호 US-0117140 (1980-01-30)
발명자 / 주소
  • Davida George I. (Whitefish Bay WI) Wells David L. (Milwaukee WI) Kam John B. (New York NY)
출원인 / 주소
  • Wisconsin Alumni Research Foundation (Madison WI 02)
인용정보 피인용 횟수 : 175  인용 특허 : 0

초록

An encryption and decryption circuit and method using subkeys which is therefore particularly useful for the encryption and decryption of database information. Each data field has a corresponding write key and a different read key. A database record is encrypted by multiplying each field by its corr

대표청구항

A method for encryption of a data record consisting of a plurality of fields, fi, and for decryption of a field, fi, from the encrypted record, comprising the steps of: choosing a read key, di, and write key, ei, corresponding to each field, i, such that each di is a prime number, D is the product o

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