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Methods and apparatus managing secure collaborative transactions

  • US 20060041752A1
  • Filed: 10/24/2005
  • Published: 02/23/2006
  • Est. Priority Date: 05/12/2000
  • Status: Active Grant
First Claim
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1. A method for managing secure collaborative transactions in which a first collaboration member and a second collaboration member update local data copies by exchanging delta messages which include data changes, comprising the steps of:

  • (a) prior to performing collaborative transactions, selecting a level of security which determines whether authenticity and integrity and confidentiality of delta messages shall be protected;

    (b) if a level of security selected in step (a) requires protecting the authenticity and integrity of delta messages, prior to transmission of a delta message from a sender to a receiver, appending to the data therein, a message authentication code comprising selected information in the message, protected by a predetermined MAC algorithm using an authentication key; and

    (c) if a level of security selected in step (a) requires protecting the confidentiality of delta messages, prior to transmission of a delta message from a sender to a receiver, encrypting the data by a predetermined encryption algorithm using an encryption key which is different than the authentication key.

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