Architecture of instant messaging systems for secure data transmision

The use of online messaging systems to exchange information has changed due to the ability to share text, video and pictures almost immediately. Also it has become an excellent alternative for transmitting data with certain reserve levels in places or where voice signals and other forms of communication are not of high quality and/or availability, creating gaps in critical information security systems. This article describes the inherent risk of use messaging apphcations for transmission of classified information, based on user needs, but with a concept of organizational use. The analyzed elements are usability, privacy of contacts and content, data security, safe storage of information, traceability of messages, lifespan of the message, information storage encryption protocols and channel codification. Because of this, in this project, a survey has been conducted in regards to acceptable requirements applicable to these technologies in the work sector. This has led to the design of a set of applications from a usability standpoint while ensuring adequate and flexible security levels. Work completed in this research included aspects of design and architecture of a XMPP messaging system, privacy of information, use of local databases and storage of information according to relevant corporate security policies and agreements, biometric recognition systems for authentication encryption protocols.