PROVIDING RANDOM NUMBERS OVER AN INSECURE CHANNEL USING DISGUISED CYPHERTEXTS
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United States of America
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Issued Date -
Jan 30, 2025
app pub date -
Jul 29, 2024
filing date -
Jul 29, 2024
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Abstract
Methods, systems, apparatuses, and computer program products for providing random numbers over an insecure channel using disguised cyphertexts are disclosed. A secure access portal application receives a first cyphertext from a key deliver center (KDC), decrypts the first cyphertext using paired keys shared between the first SAP application and the KDC to obtain a transformed second cyphertext, de-transforms the transformed second cyphertext using a transformation function based on the paired keys to obtain a second cyphertext, decrypts the second cyphertext using the paired keys to obtain first a random number generated by the KDC, and generates a delivery key based at least on the first random number. The SAP application may be use the delivery key to securely receive a symmetric key from the KDC, and securely communicate with another secure access portal application using the symmetric key.
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