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System and method for proving time and content of digital data in a monitored system

  • US 20060053294A1
  • Filed: 09/06/2005
  • Published: 03/09/2006
  • Est. Priority Date: 09/09/2004
  • Status: Abandoned Application
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1. A method for monitoring and saving a data record in a monitored system for preventing the possibility to tamper with said data record at a later time, comprising saving data content together with a time-limited active key and encrypting said saved data content and active key using an encryption algorithm not possible for the encryptor to decrypt, said encrypted data content and active key comprising said data record.

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