Method and system for the processing of messages in a telecommunication system
First Claim
1. In a method of encryption and decryption of messages in a telecommunication system that includes a telecommunication network, a message switching center connected to the telecommunication network for directing messages through the telecommunication system, a service provider, transmission software connecting the message switching center to the service provider, a subscriber'"'"'s mobile station connected to the telecommunication network and from which messages are generated and are sent and received via the message switching center, and a subscriber identity module connected to the mobile station for storing on the subscriber identity module a message to be one of encrypted and decrypted and applications and parameters for encryption and decryption of the stored message, the improvement comprising the steps of:
- monitoring a predetermined memory location of the subscriber identity module for presence at said memory location of a predetermined string, and initiating, in response to monitored detection of the predetermined string at said memory location, one of encryption and decryption of the message stored on the subscriber identity module.
3 Assignments
0 Petitions
Accused Products
Abstract
A method and system for encrypting, in a telecommunication system, outgoing message traffic between mobile stations operating in accordance with current mobile communication standards and/or between a mobile station and a service provider, and for decrypting incoming message traffic, includes directing encrypted messages to and receiving encrypted messages from only those members of a limited closed receiver group that are located in a given geographic area.
153 Citations
19 Claims
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1. In a method of encryption and decryption of messages in a telecommunication system that includes a telecommunication network, a message switching center connected to the telecommunication network for directing messages through the telecommunication system, a service provider, transmission software connecting the message switching center to the service provider, a subscriber'"'"'s mobile station connected to the telecommunication network and from which messages are generated and are sent and received via the message switching center, and a subscriber identity module connected to the mobile station for storing on the subscriber identity module a message to be one of encrypted and decrypted and applications and parameters for encryption and decryption of the stored message, the improvement comprising the steps of:
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monitoring a predetermined memory location of the subscriber identity module for presence at said memory location of a predetermined string, and initiating, in response to monitored detection of the predetermined string at said memory location, one of encryption and decryption of the message stored on the subscriber identity module. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. In a system for encryption and decryption of messages in a telecommunication system that includes a telecommunication network, a message switching center connected to the telecommunication network for directing messages through the telecommunication system, a service provider, transmission software connecting the message switching center to the service provider, a mobile station connected to the telecommunication network and from which messages are generated and are sent and received via the message switching center, and a subscriber identity module connected to the mobile station for storing on the subscriber identity module a message to be one of encrypted and decrypted and applications and parameters for encryption and decryption of the stored message, the improvement comprising:
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means on the subscriber identity module for monitoring a predetermined memory location of the subscriber identity module for presence at said memory location of a predetermined string; and
means on the subscriber identity module for initiating, in response to monitored detection of the predetermined string at said predetermined memory location, one of encryption and decryption of a message stored on the subscriber identity module. - View Dependent Claims (11, 12, 13, 14, 15)
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16. In a subscriber identity module for use in conjunction with a mobile telecommunication station and which includes a data processing device, a storage device connected to the data processing device, a data transfer device connected to the data processing device, and an interface for transfer of information between the mobile station and the subscriber identity module, the improvement comprising:
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means for monitoring a predetermined memory location of the subscriber identity module for presence at said memory location of a predetermined string; and
means for initiating, in response to monitored detection of the predetermined string at the predetermined memory location, one of encryption and decryption of a message. - View Dependent Claims (17, 18, 19)
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Specification