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Detection of encrypted packet streams

  • US 7,761,705 B2
  • Filed: 09/17/2004
  • Issued: 07/20/2010
  • Est. Priority Date: 09/17/2004
  • Status: Active Grant
First Claim
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1. A method carried out using a processor circuit, comprising:

  • detecting an observable parameter of an encrypted stream of packets, the parameter being observable despite encryption obscuring the contents of the encrypted stream of packets, wherein the observable parameter is observed without decrypting any portion of the stream of packets; and

    estimating the type of data within the encrypted stream of packets from the observable parameter, wherein, despite the encryption, the type of data within the encrypted stream of packets may be estimated, wherein the type of data is estimated without decrypting any portion of the stream of packets.

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