Method and device for communication using random codes
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United States of America Patent
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Issued Date -
Jul 26, 2007
app pub date -
Apr 11, 2006
filing date -
Apr 11, 2005
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A method and device for communication, in which a random code is used in the communication. The method comprises storing a random code in a first device; storing the random code in a second device; and using the random code in a subsequent communication. The invention may be employed in a financial transaction. That is, the random codes may be used either as keys to endorse payment instructions with a digital signature; or as 'virtual cash', in which case the codes themselves are transmitted between the parties. Another application of the invention is in transferring confidential information by a 'one time pad' security technique, in which a random list of numbers is used to encode the character code for a symbol, by a simple numerical operation.
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