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How can data be recovered from a system using file header and footer?

How can data be recovered from a system using file header and footer?

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Answer: Hey!! kindly find your solution below. Let me know if any issue. Thanks.

File Carving is a technique used for searching files in a data stream based on knowledge of file formats rather than any other metadata. When your file system metadata is damaged, it is very useful. The most common example is Fat file system, typically used in small media. Once the media is formatted, the file is deleted, the location of data is lost.

Carving needs the ability to identify the file header. In carving process first step is- to scan media and produce the list of headers, which represents file start points. If start points are found, there are several ways to choose from.

Header and fixed size carving- In this, take some fixed size starting at the header. For example- jpeg hardly exceeded 100 mb, you can take 256 mb worth of data starting at the header.

Header and size carving- It is substitute of fixed size method. This only works, where file size is stored in header.

Header and footer carving- If your file has some kind of footer we can identify at the end of a file, The size of capture can be limited to the nearest footer after the header,

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