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AssigneeInternational Business Machines Corporation
InventorsMihir Bellare, Roch Andre Guerin, Phillip Walder Rogaway
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A method and system for providing data authentication, within a data communication environment, in a manner which is simple, fast, and provably secure. A data message to be sent is partitioned into data blocks. Each data block is combined with a block index to create a word. A pseudo-random function is applied to each word to create a plurality of enciphered data strings. An identifying header, comprising the identity of the sender and a counter value, is also enciphered using a pseudo-random function. These enciphered data strings and header are logically combined to create a tag. As the enciphering of a particular word occurs independent of the other words, each block can be enciphered independently of the others. The method and system can thus be performed and structured in either a parallel or pipelined fashion. A receiving component or system generates a second tag which can then be compared with the transmitted tag to determine message authentication.
An article of manufacture for allowing a data processing system to determine an authentication tag to be used in conjunction with transfer of data using a communication channel comprising:
An article of manufacture for allowing a data processing system to determine an authentication tag to be used in conjunction with transfer of data using a communication channel comprising:
An article of manufacture for allowing a data processing system to determine authenticity of a received data packet from a communication channel comprising:
Dependencies are inferred from the claim text.