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System and method for compressing secure E-mail for exchange with a mobile data communication device

  • US 8,898,473 B2
  • Filed: 09/12/2012
  • Issued: 11/25/2014
  • Est. Priority Date: 06/12/2001
  • Status: Expired due to Term
First Claim
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1. A method of reducing size of an encoded message at a host system before the encrypted message is transmitted to a wireless mobile communication device, the method comprising:

  • receiving at the host system the encoded message from a message sender addressed to at least one message receiver, the encoded message comprising a digital signature, a certificate, and a message body; and

    determining whether any of the at least one message receiver has a corresponding wireless mobile communication device; and

    for each message receiver that has a corresponding wireless mobile communication device;

    rearranging the digital signature and certificate in the encoded message so that the message body is transmitted to the wireless mobile communications device before the digital signature and the certificate; and

    transmitting the processed message to said corresponding wireless mobile communication device.

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