校验和与CRC的区别

1.校验和：
校验和是检测数据错误的广泛使用的方法。该方法比其他错误检测方法更可靠。这种方法在发送方使用Checksum Generator ，在接收方使用Checksum Checker。

1. CRC：
CRC或循环冗余校验是用于检测错误的错误检测方法，该方法由上层协议使用。它在发送方和接收方都包含多项式生成器。多项式生成器的类型为x ³ + x ² + x + 1。

校验和与CRC的区别：

S.No.	Checksum	CRC
1.	It is not a thorough concept for detection nd reporting of errors.	CRC is a thorough concept for detection and reporting of errors.
2.	It is capable of detecting single bit change in the data.	It is capable of detecting double digits errors.
3.	This method comes after CRC method.	It is the oldest method.
4.	Errors can be easily computed.	It follows a complex computation method.
5.	It can compute less number of errors than CRC.	Due to complex computation, it can detect more errors.
6.	It is based on addition approach.	It is based on hash approach.
7.	It is widely used in data validation during implementation of software.	It is widely used in analog transmission for data validation.