System and method for encryption
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United States of America Patent
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Feb 20, 2018
Issued Date -
N/A
app pub date -
Jun 2, 2017
filing date -
Jun 12, 2013
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Abstract
A method for validating a signature request for a first message M, comprising: receiving, a validation challenge (VC) from a signature creation device (SCD), the VC created by the SCD, in response to receiving the signature request and message M from a user, using a second message M′ which is based on message M and a secret shared between the SCD and user, the VC generated by encrypting message M′ using the secret; generating, the message M′ from the VC by decrypting the VC using the secret; displaying the message M′ to the user; receiving confirmation from the user that the displayed message M′ corresponds to the message M; generating, a validation code confirming the signature request to create a signature; and outputting the code to the SCD, to cause the SCD to generate the signature for the user for message M based on successfully verifying the code.
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