Knowledge Base

Home > What is ... > What is a CRC?

Created 29 Nov 2002
Modified 20 May 2007

Article 146

What is a CRC?

A CRC (cyclic redundancy check) is a type of function that performs a mathematical calculation on a block of data and returns a number that represents the content and organization of that data. The CRC returns a number that uniquely identifies the data. CRC is the operation that generates a "fingerprint" for a block of data. The actual number, or fingerprint, that is used to identify the data is called a checksum.

Keywords