Computer Forensics was created to help various kinds of police investigations to quickly and reliably collect digital data from the suspect's electronic media (PCs, mobile phones, printers, etc.) and their presentation to the court.
The Open Computer Forensics Architecture is a program created by the Dutch police to accelerate police research, automate the collection of digital data and enable police researchers to have ongoing access to the data of the case that has been found so far.
Open Computer Forensics Architecture has been developed on Linux and requires good knowledge of SQL language and knowledge of Computer Forensics in general.
By connecting the Open Computer Forensics Architecture to the suspect's computer, it can be easily found and recovery digital data that can be presented in court as evidence data.
With OCFA's specialized use, data can be obtained that show information about a document or information that the suspect has attempted to delete. This data is called Meta Data.
Communication between the departments within the OCFA is determined by a communication system consisting of two levels.
At the first level there is the messaging system with centre the OCFA Anycast Relay which is responsible for message caching and undelivered message storage and for load balancing between same-type segments within OCFA. At the second level the OCFA XML Router distributes the evidence to the appropriate OCFA segments .For the distribution of the data the XML Router sees where the meta data was recorded from the previous sections.
Although OCFA is simple to use, its capabilities are highlighted in its specialized use and architecture.
The last OCFA tool is the OCFA Data Store Module. This tool processes the data and meta data and stores the useful information in a database. OCFA can be downloaded by anyone who wants it from the page http://ocfa.sourceforge.net/ since it is free.
Sources: http://ocfa.sourceforge.net/index-old.html http://www.forensicswiki.org/wiki/Open_Computer_Forensics_Architecture
From Danish Giannis and Gerasimos Kounadi @Wikibooks
