Checksum
A checksum is a number. It is a kind of redundancy check. There are different ways to calculate it. It serves as a check, that no errors have been made when writing down the number. In its simplest form, the digits are simply added up. This can however not detect errors of swapping digits around. One of the uses of checksums is to check that account numbers have been entered correctly.
Use of checksums in this project
In Sanatio, Checksum is implemented as a validator. It is used to check that a number has been entered correctly or to identify any malicious activity. The checksum validator is used to validate the following. Checksum Algorithm are helpful to identify if the number is valid or not.
Document |
Algorithm |
|---|---|
Credit Card |
Luhn |
Aadhar card |
Verhoeff |
Ean13 |
Ean13 checksum |