Cryptography – Particular algorithmic function encoding – Nbs/des algorithm
Patent
1998-03-24
1999-12-21
Gregory, Bernarr E.
Cryptography
Particular algorithmic function encoding
Nbs/des algorithm
380 9, 380 21, 380 23, 380 24, 380 29, 380 30, 380 49, 380 50, 235379, 235380, H04L 900, H04L 908, G07F 708
Patent
active
060059427
ABSTRACT:
A system and method allow card issuers to securely add applications during the lifetime of the card after the card has already been issued (post issuance). Loading of an application and/or objects from an application server via a card acceptance device (and its supporting system infrastructure delivery mechanism) onto a card post issuance is performed in a secure and confidential manner. A smart card includes a card domain application that manages the card. Any number of security domain applications on the card provide security for loaded applications by managing keys; each application is associated with a security domain. Each of the card domain and security domains has a command interface for off-card communication, and an API for internal card use. The card life cycle includes the states of masked, initialized, load secured and blocked. An application life cycle includes the states of not available, loaded, installed, registered, personalized, activated and blocked. An application can block the card.
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Chan Alfred
Kekicheff Marc B.
Weise Joel M.
Wentker David C.
Gregory Bernarr E.
Visa International Service Association
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