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System for electronic repository of data enforcing access control on data retrieval

  • US 6,839,843 B1
  • Filed: 12/10/1999
  • Issued: 01/04/2005
  • Est. Priority Date: 12/23/1998
  • Status: Expired due to Term
First Claim
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1. A secure electron data storage and retrieval system with the electronic data stored therein maintained secure from the repository manager, comprising:

  • a data repository;

    a repository manager for managing storage and retrieval of encrypted electronic data of a deposing computer into and out of the data repository;

    an agent program of the depositing computer, accessible to the repository manager whether the depositing computer is online or off-line, the agent program having means in an environment secure from the repository manager to decrypt, on authentication of a requesting computer, the encrypted electronic data of the depositing computer retrieved from the data repository on request of the requesting computer;

    where the repository manager is further adapted to digitally sign the encrypted electronic prior to storage in the data repository, and to forward a copy of the signed encrypted data to the agent program of the depositing computer, and wherein the agent program of the depositing computer is adapted to verify in the environment secure from the repository manager against the signed encrypted data, the retrieved encrypted electronic following decryption; and

    where the agent program is further adapted to forward the decrypted electronic data directly from the environment secure from the repository manager to the requesting computer without providing access to the repository manager.

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