Reza Jahantigh

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Nowadays with widespread employment of the Internet, servers provide various services for legal users. The vital issue in client/server connections is authentication protocols that make the communication channel safe and secure against famous attacks. Recently, Kumari et al. and Chaudhry et al. proposed two authentication and key agreement protocols and(More)
Nowadays, with the expansion of telemedicine networks, providing security of medical documents plays an important role in medical society especially in protection of patient privacy. For this reason, medical centers spend a lot of money to improve their information security. One of the methods of improving medical information security is encryption of(More)
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