2024年5月4日发(作者：)

crc循环冗余校验码校验规则

英文回答：

Introduction to CRC (Cyclic Redundancy Check)。

Cyclic Redundancy Check (CRC) is an error-detecting

code commonly used in digital networks and storage devices.

It is a type of polynomial code that generates a fixed-

length checksum based on the input data. The checksum is

appended to the data and used to verify the integrity of

the data during transmission or storage.

How CRC Works.

CRC works by dividing the input data by a predetermined

polynomial. The remainder of this division is known as the

CRC value. The CRC value is then appended to the input data

and transmitted or stored.

When the data is received or retrieved, the CRC value

is recalculated using the same polynomial. If the

recalculated CRC value matches the original CRC value, it

indicates that the data has not been corrupted during

transmission or storage.

Types of CRC Polynomials.

There are various types of CRC polynomials, each with

its own characteristics. Some common CRC polynomials

include:

CRC-16: Used in various applications, including data

communication protocols and storage devices.

CRC-32: Widely used in file transfer protocols, such

as ZMODEM and Kermit.

CRC-64: Used in high-performance computing and storage

systems.

Applications of CRC.