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Access to data stored in an embedded database

  • US 7,891,571 B2
  • Filed: 09/30/2002
  • Issued: 02/22/2011
  • Est. Priority Date: 10/01/2001
  • Status: Expired due to Fees
First Claim
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1. A smartcard (CAR) implementing a structured card query language, including a number of data files, wherein the smart card comprises:

  • a privilege file (P1-P3) associated with a user type (ADM, PUBLIC, USER1, USER2), said privilege file identifying for at least one command (SEL, INS, UPD, SUP) the data files on which said command can be executed, anda microcontroller programmed to create, when a user accesses the data files, a set of flags from the privilege file, each set of flags being associated with a unique data file and each flag being associated with a command, the flag indicating whether or not the command can be executed by the user on the associated file.

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