SYSTEM AND METHOD FOR COMPRESSING SECURE E-MAIL FOR EXCHANGE WITH A MOBILE DATA COMMUNICATION DEVICE
First Claim
1. A method of reducing the size of an encrypted message at a host system before the message is transmitted to a wireless mobile communication device, the method comprising:
- (a) receiving at the host system an encrypted message from a message sender addressed to first and second message receivers, the encrypted message including an encrypted message body and an encrypted session key for each of the message receivers;
(b) generating at the host system a first reduced size encrypted message that contains the encrypted message body and the encrypted session key for the first message receiver, the first reduced size encrypted message not including the encrypted session key for the second message receiver; and
(c) transmitting the first reduced size encrypted message to a wireless mobile communication device that corresponds to the first message receiver;
wherein the encrypted sessions keys were encrypted via public keys that are electronically available from different companies over a network to which the host system is connected.
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Accused Products
Abstract
A system and method are provided for pre-processing encrypted and/or signed messages at a host system before the message is transmitted to a wireless mobile communication device. The message is received at the host system from a message sender. There is a determination as to whether any of the message receivers has a corresponding wireless mobile communication device. For each message receiver that has a corresponding wireless mobile communication device: the message is processed so as to modify the message with respect to encryption and/or authentication aspect. The processed message is transmitted to a wireless mobile communication device that corresponds to the first message receiver. The system and method may include post-processing messages sent from a wireless mobile communications device to a remote system. Authentication and/or encryption message processing is performed upon the message. The processed message may then be sent through the remote system to one or more receivers.
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Citations
1 Claim
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1. A method of reducing the size of an encrypted message at a host system before the message is transmitted to a wireless mobile communication device, the method comprising:
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(a) receiving at the host system an encrypted message from a message sender addressed to first and second message receivers, the encrypted message including an encrypted message body and an encrypted session key for each of the message receivers;
(b) generating at the host system a first reduced size encrypted message that contains the encrypted message body and the encrypted session key for the first message receiver, the first reduced size encrypted message not including the encrypted session key for the second message receiver; and
(c) transmitting the first reduced size encrypted message to a wireless mobile communication device that corresponds to the first message receiver;
wherein the encrypted sessions keys were encrypted via public keys that are electronically available from different companies over a network to which the host system is connected.
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Specification