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National Repository of Grey Literature 2 records found  Search took 0.00 seconds. 
Use of one-time passwords OTP
 Maroušek, Petr ; Havránek, Martin (advisor) ; Benda, Petr (referee)
This bachelor thesis discusses the use of one time passwords. Thesis is initially focused on the ways of the authentication and then on the use of one time passwords. One-time passwords are those passwords which are valid for only one authentication or transaction. After that they lose their validity. One-time passwords no longer exist after their use, so they are resistant to repeated attacks. Furthermore, the comparation of security between ordinary passwords and one-time passwords is discussed. Further, there is shown a comparison of different types of one-time passwords. There is a description of their creation and distribution to users. The practical part describes the implementation of open-source solution of OTP. Implementation is carried out using a plug-in to a website created in WordPress content management system. In the first part of the practical part, the selection of the plugin by selected criteria is described. In the second part of the practical part, the implementation of plugin is realized.
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One Time Passwords
 Škarda, Filip ; Pavlíček, Luboš (advisor) ; Palovský, Radomír (referee)
This Bachelor thesis describes the one-time passwords and their various implementation possibilities. The one-time passwords are passwords, which are valid only for one login or transaction. In contrast to regular passwords, one-time passwords are immune against reply attacks, which means that if a possible attacker eavedroppes the used password, he cannot exploit it, because it is not valid anymore. The theoretical section of the thesis explains the reasons for using one-time passwords and demonstrates some particular OTP systems. The practical section shows two different examples of using open-source OTP systems. The first one describes the use of OTPasswd for authentication to a server over SSH, the other one uses MultiOTP PHP class for authentication to a web application.
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