The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
It might be possible for individual actors in a marketplace to drive the adoption of particular privacy and security standards. Using HTTPS, two-factor authentication, and end-to-end encryption as case studies, the author tries to ascertain which factors are responsible for successful diffusion that improves the privacy of a large number of users.
Secure end-to-end communication has become a necessity for many people. In this research paper we survey the most popular and widely used secure anonymous Instant Messaging (IM) services and protocols, study them from a security and anonymity point of view, and investigate how these services or protocols could be compromised.
College associations play an important role in school culture. However, there are several disadvantages of current management of college associations, such as lax, labor-intensive, and time-consuming management. With the population of the mobile Internet, mobile phones become indispensable in daily life. In this paper, we attempt to explore mobile instant messaging to leverage management of college...
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 application implemented in Java programming...
Mobile Instant Messenger is one of the most application which use to exchange a message between Sender and Receiver over public network, so that it is very important building an application with good level of security aspect and fast communication. This paper propose a secure Mobile IM in excanging data over internet with an virtual network method. In this model, we propose a Mobile Instant Messenger...
Nowadays, instant messaging (IM) represents the most used messaging service for both home and corporate users. IM is used in many different application fields. Thus, it is an effective and easy means of network-based communication. Unfortunately, this technology does not provide built-in support for security features. This paper proposes a new and secure instant messaging protocol for a centralized...
The wide scale deployment of Internet combined with several advancements in hardware and software technologies created opportunities for several Internet based applications such as Voice Over IP (VoIP) that involves the delivery of voice, video and data to the end user. SIP, the Session Initiation Protocol, is a signaling protocol for Internet conferencing, telephony, presence, events notification...
SIP is a popular signaling protocol. In SIP, RFC4474 (SIP Identity) is used to verify integrity of a flow from a Proxy to a terminal of a callee while RFC3261 (Proxy Authenticate) is used to ensure authenticity of a flow from a terminal of a caller to a Proxy. However Proxy Authenticate only ensures authenticity and cannot verify the integrity of a flow. Thus, the flow from a terminal of caller to...
Session Initiation Protocol (SIP) is a signaling protocol for Internet conferencing, telephony, presence, events notification, and instant messaging. SIP is an application-layer protocol and operates on the TCP/IP stack, which means that it inherits all associated IP vulnerabilities. It has, therefore, possibility that SIP systems can be damaged by Flooding-based Denial of Service (DoS). Previous...
The most common method of system administration is accessing the remote system through the network by means of some client-server protocol, giving access to a privileged service always listening on the target system. There are important security and flexibility limitations deriving from the usage of a predictable access port for such a critical application, which can be summarized as the impossibility...
A global frame of secure instant messaging system based on Microsoft MSN is proposed to solve the security problems that exist in instant messaging. A secure add-in is designed and integrated seamlessly into the MSN client utilizing interfaces of the MSN client. The identity based cryptography is introduced into the secure instant messaging field and thus a secure instant messaging key management...
This paper focuses on design and implementation of a computer supported cooperative consultation platform based on P2P (peer-to-peer) communication mode. In view of the JXTA framework has the advantages such as, interoperability, platform independence and ubiquity, the consultation platform is implemented based on JXTA framework. First, the analysis and description of cooperative consultation under...
The IP Multimedia Subsystem (IMS) is a promising technology, designed to provide IP based telephony and real-time multimedia services. The 3 GPP specifications define a complex IMS architecture for the convergence of voice, video and data. It enables provisioning variety of multimedia services, such VoIP, video streaming, conferencing, instant messaging, web browsing, e-mail, push-to-talk, online...
Various network functions such as, Presence, Push to Talk Over Cellular (PoC), Instant Messaging (IM), etc. need to access and manipulate personal, group and professional information owned by the end users from multiple places (home, work, travel, etc.) and devices (mobile phones, PDA, computers, network, etc.). These information (contacts, calendars, task list, notes or files) are not always composed...
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.