Ubaid Ur Rehman

Learn More
Click jacking attacks are the emerging threats to websites, especially to online social networks (OSNs). In this paper, we describe some new attacks to online websites. The new Click jacking attacks cause serious damage to users by stealing their personal credentials or by sharing their personal information on social networks bringing moral degradation to(More)
Filter banks facilitate an estimation of the power spectral density of broad-band non-stationary signals, an operation required in many cognitive radio systems. The samples at the filter bank output may serve as a basis for an estimation of the input signal energy within any time-frequency (TF) region of interest. In order to achieve a high resolution in(More)
Voice over Internet Protocol (VoIP) is one of the most popular technologies nowadays that facilitate the user by providing different features as instant messages, phone calls, video calls, and voicemails. Basic VoIP protocols were designed to be efficient instead of secure. After numerous attacks on these protocols several solutions were proposed to prevent(More)
Cloud Computing is an emerging field of technology that relies on sharing of resources over the Internet to achieve economy of scales. It has gained momentum among both individuals and corporate sectors due to a variety of applications such as ease of administration, mobility and collaboration, reduction of hardware and licensing cost, and scalability.(More)
  • 1