Electrical computers and digital processing systems: support – Data processing protection using cryptography – Tamper resistant
Reexamination Certificate
2008-12-18
2010-12-14
Lipman, Jacob (Department: 2434)
Electrical computers and digital processing systems: support
Data processing protection using cryptography
Tamper resistant
C726S026000
Reexamination Certificate
active
07853806
ABSTRACT:
An original data circulation system for storing or circulating original data which is digital information is provided. The original data circulation system includes an issuer apparatus, a user apparatus and a collector apparatus. The issuer apparatus generates originality information including first information corresponding to the issuer apparatus and second information corresponding to data and sends the originality information. The user apparatus verifies the validity of the source apparatus of the originality information and stores the originality information when the validity is verified. The collector apparatus verifies the validity of the source apparatus of the originality information and processes data corresponding to the second information when the validity is verified.
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Fujimura Ko
Hanadate Masayuki
Kuno Hiroshi
Terada Masayuki
Kenyon & Kenyon LLP
Lipman Jacob
Nippon Telegraph and Telephone Corporation
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