Zoran Djuric

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Web applications vulnerabilities allow attackers to perform malicious actions that range from gaining unauthorized account access to obtaining sensitive data. The number of web application vulnerabilities in last decade is growing constantly. Improper input validation and sanitization are reasons for most of them. The most important of these vulnerabilities(More)
In order to be considered secure, a payment system needs to address a number of security issues. Besides fundamental security requirements, like confidentiality, data integrity, authentication and non-repudiation, another important requirement for a secure payment system is fair exchange. Many existing payment protocols require that customers must pay for(More)
Snowden's whistleblower from the last year made people more aware of the fact that we are living in the Internet surveillance era. Privacy of Internet communication has been disrupted. In this paper, application for privacy protection in chat communication, named CryptoCloak, is presented. CryptoCloak provides privacy protection for chat communication.(More)
Number of instant messaging (chat) applications grows rapidly, not only in everyday communication of ordinary people, but in business correspondence. Consequently, security and privacy of these kinds of applications are very important. In this paper, CryptoCloak protocol for secure and private chat communication is introduced, together with the prototype IM(More)
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