Category:File Format Identification
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Revision as of 01:01, 22 May 2013
The purpose of File Format Identification is to determine the file format of a digital object.
Basically, there are 3 ways to identify a digital object.
Extension
The file extension is used, e.g. ".doc" if the file is named "example.doc". This tells us the file might be a Word document.
Content Header
The content header is used to determine the file type based on the mime-type. As an example, your browser identified this webpage to be a "text/html" file.
Signature
The file is scanned for certain bytes, just as one would scan text looking for a keyword. Academic and forensic file format identification software make use of signatures, also known as magic bytes. Each signature is assigned a unique identifier, such as a PUID.
Furthermore, all anti-virus software use signatures to detect viruses, next to using semantics.
Pages in category "File Format Identification"
The following 18 pages are in this category, out of 18 total.
