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The '''Open Computer Forensics Architecture''' or '''(OCFA''') is an [[distributed computing|distributed]] [[open source]] [[computer forensics]] framework/backend/architecture used to analyze [[digital media]] within a digital forensics laboratory environment. The framework was built by the [[Holland|Dutch]] national police.
==Architecture==
OCFA provides a framework for weaving together both computer forensics and generic media and file processing tools and libraries into an automated process that allows for the processing of
TheOCFA Openconsists Computer Forensics Architecture is distributed primary asof a [[back end]] architecture for the [[Linux]] platform . The results of the digital media processing are, storedit inuses a [[PostgreSQL]] database for data storage, a custom [[Content-addressable storage]] or CarvFS based data repository and a [[Lucene]] index. AThe [[front end]] for OCFA has not been made publicly available due to licencing issues. ▼vast amounts of digital media data within the context of a computer forensic investigation. OCFA was built by the dutch national police to address the shortcomings of the commercial computer
forensics tools like [[EnCase]] and [[Forensic Toolkit]] with respect to scalability, speed and most of all extendability.
The framework integrates with other open source forensic tools and includes modules for [[The Sleuth Kit]], Scalpel, Photorec, libmagic,
▲The Open Computer Forensics Architecture is distributed primary as a [[back end]] architecture for the [[Linux]] platform. The results of the digital media processing are stored in a [[PostgreSQL]] database, a custom [[Content-addressable storage]] or CarvFS based data repository and a [[Lucene]] index. A [[front end]] for OCFA has not been made publicly available due to licencing issues.
[[GNU Privacy Guard]], [[objdump]], exiftags, zip, [[7-zip]], [[tar]], [[gzip]], [[bzip2]], [[rar]], [[antiword]], qemu-img , and mbx2mbox ,. strings,OCFA manyis perlextensible modulesin for[[C++]] mailor and[[Java]]. dbx processing, libewf and others.▼
==See also==
OCFA comes with a small set of modules that integrate some common open source tools and libraries into the architecture. These include modules for integration of [[The Sleuth Kit]], Scalpel, Photorec, libmagic,
* [[List of digital forensics tools]]
▲[[GNU Privacy Guard]], [[objdump]], exiftags, zip, [[7-zip]], [[tar]], [[gzip]], [[bzip2]], [[rar]], [[antiword]], qemu-img, mbx2mbox, strings, many perl modules for mail and dbx processing, libewf and others.
While these standard modules provide a reasonable environment for processing digital media, most of the power of OCFA comes from its extendability. OCFA comes with libraries for building your own modules in [[C++]] or [[Java]].
Both the Java and C++ library provide an API for building custom OCFA modules for integration of other tools or libraries into the computer forensics process. Basic modules like this can produce derived data and add extracted meta-data to both the input data and the derived data. The C++ library also provides a second more advanced API for building modules that produce derived output with meta data at more than one level deep.
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