Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2006-02-14
2006-02-14
Barron, Jr., Gilberto (Department: 2132)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C726S004000, C713S193000
Reexamination Certificate
active
07000115
ABSTRACT:
A smart chip protection system contains a unique public/private identity key pair and uses a separate public/private signature key pair. The identity private key is stored in permanent, secure storage such that it can not be read outside the chip. An issuing entity generates a descriptor containing the identity public key, attribute data, and a digital signature. The digital signature is generated by enciphering a derivation of the identity public key and the attribute data with the signature private key known only to the issuer. The authenticity of the descriptor data is verified by decrypting the signature with the signature public key using a known algorithm, and comparing the result to the derivation of the descriptor data. The identity of the object can be verified requesting the smart chip ro perform an encryption/decryption operation using its identity private key, and performing the complement using the public key.
REFERENCES:
patent: 4868877 (1989-09-01), Fischer
patent: 5351302 (1994-09-01), Leighton et al.
patent: 5606609 (1997-02-01), Houser et al.
patent: 5734819 (1998-03-01), Lewis
patent: 5875248 (1999-02-01), Lewis
patent: 5910989 (1999-06-01), Naccache
patent: 6035303 (2000-03-01), Baer et al.
patent: 8328470 (1996-12-01), None
IBM Corp., “High Integrity Distributed Configuration Management”, IBM Technical Disclosure Bulletin, vol. 37, No. 9, Sep., 1994, pp. 453-457.
IBM Corp., “Public-Key Enciphering/Deciphering Transformations Using a Conventional Algorithm”, IBM Technical Disclosure Bulletin, vol. 25, No. 3A, Aug., 1982, pp. 1241-1249.
Lewis David Otto
Remfert Jeffrey Earl
Barron Jr. Gilberto
Gurshman Gurshmen
Truelson Roy W.
LandOfFree
Method and apparatus for uniquely and authoritatively... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for uniquely and authoritatively..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for uniquely and authoritatively... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3646289