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Method and system for securing digital assets using time-based security criteria

  • US 20050071657A1
  • Filed: 09/30/2003
  • Published: 03/31/2005
  • Est. Priority Date: 09/30/2003
  • Status: Abandoned Application
First Claim
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1. A file security system for restricting access to electronic files, said file security system comprising:

  • a key store that stores a plurality of cryptographic key pairs, each of the cryptographic key pairs includes a public key and a private key, at least one of the cryptographic key pairs pertaining to a predetermined time; and

    an access manager operatively connected to said key store, said access manager determines whether the private key of the at least one of the cryptographic key pairs pertaining to the predetermined time is permitted to be provided to a requestor based on a current time, wherein the requester requires the private key of the at least one of the cryptographic key pairs pertaining to the predetermined time to access a secured electronic file, and wherein the secured electronic file was previously secured using the public key of the at least one of the cryptographic key pairs pertaining to the predetermined time.

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