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US 7,254,232 B2Granted
Method and system for selecting encryption keys from a plurality of encryption keys
AssigneeCopytele, Inc.
InventorsFrank J. DiSanto, Denis A. Krusos
Life of this patent
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AssigneeCopytele, Inc.
InventorsFrank J. DiSanto, Denis A. Krusos
Estimating the term…
A method and system of alternatively selecting an encryption key used to transmit a known number data bits and providing sufficient information to inform the receiving part of the selected encryption key is presented. In one embodiment of the invention, a plurality of encryption keys are available to the parties of the communication network. The transmitting party selects an encryption key used to encrypt a message block based on the data content of a previously transmitted message block. The receiving party, having received, and decrypted, a previously transmitted message block has sufficient information to determine the encryption key used to encrypt a subsequent data block and is able to decrypt the subsequently transmitted message.
A method to encrypt a data message having a plurality of message data blocks prior to transmitting said message data blocks over a network, said method comprising:
A method to encrypt a data message having a plurality of message data blocks prior to transmitting said message data block over a network, said method comprising:
Dependencies are inferred from the claim text.