Abdulrahman Alhothaily

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Security plays a crucial role in payment systems; however, some implementations of payment card security rely on weak cardholder verification methods, such as card and a signature, or use the card without having any cardholder verification process at all. Other vulnerable implementations of cardholder verification methods suffer from many security attacks,(More)
Digital certificates, the primary mechanism for providing secure communications in the Internet, have been widely deployed. In this paper, we propose X.509 Check, a tool designed to analyze the security properties and the quality of digital certificates. X.509 Check can be used to verify digital certificates and provide a deep analysis on the quality and(More)
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