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Entries Tagged ‘Thawte’

Public Key Infrastructure: Certificate Authority and Its Role in PKI: An Example

Aug.19, 2008 in Cryptography, Network Security

Public Key Infrastructure is also named PKI. What is the role of Certificate Authority in PKI? Before we talk on this, let’s discuss the term “trust”. The operation of Public Key Infrastructure strongly depends on “trust”.  And this is also related to the application of asymmetric cryptography technique. To illustrate this, let’s suppose Bob wants […]

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DNS – Domain name system security issues

Mar.31, 2008 in Attack Methodologies, Cryptography, Network Security

Domain Name System (DNS) is the magical ability of Internet hosts to translate the machine-readable IP address numbers like 216.109.112.135 to something meaningful to humans, like www.yahoo.com. A sophisticated hierarchical database system in the Internet is required to accomplish this task. One of the core components of that system is the DNS server, which serves […]

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