CRC16CCITTFALSE

CRC16CCITTFALSE refers to a specific variant of the Cyclic Redundancy Check (CRC) algorithm. CRCs are error-detection codes used to detect accidental changes to raw data. The CRC16CCITTFALSE designation indicates several key parameters of the CRC calculation. "CRC16" signifies that the checksum generated is 16 bits long. "CCITT" refers to the Consultative Committee on International Telegraphy and Telephony, which standardized many CRC algorithms. The "FALSE" part of the name is crucial. It denotes that the initial value of the checksum register is 0xFFFF (all bits set to 1), and the final XOR value is also 0xFFFF. This is in contrast to other CCITT CRC variants, such as CRC16CCITTTRUE, which might use a different initial value or a final XOR operation. This specific configuration, CRC16CCITTFALSE, is commonly employed in various communication protocols and data storage systems due to its widespread adoption and established reliability in detecting common transmission errors.