https://github.com/europa502/luhn-algorithm
It is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers, etc.
https://github.com/europa502/luhn-algorithm
cpp javascipt javascript luhn-algorithm php python shell-script
Last synced: 7 months ago
JSON representation
It is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers, etc.
- Host: GitHub
- URL: https://github.com/europa502/luhn-algorithm
- Owner: europa502
- Created: 2017-11-30T05:54:20.000Z (over 7 years ago)
- Default Branch: master
- Last Pushed: 2017-11-30T10:09:29.000Z (over 7 years ago)
- Last Synced: 2024-01-14T19:51:55.701Z (over 1 year ago)
- Topics: cpp, javascipt, javascript, luhn-algorithm, php, python, shell-script
- Language: Shell
- Homepage:
- Size: 8.79 KB
- Stars: 6
- Watchers: 2
- Forks: 4
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
Awesome Lists containing this project
README
# Luhn-algorithm
The Luhn algorithm or Luhn formula, also known as the "modulus 10" or "mod 10" algorithm, is a simple checksum formula used to validate a variety of identification numbers, such as credit card numbers, IMEI numbers, National Provider Identifier numbers in the United States, Canadian Social Insurance Numbers, Israel ID Numbers and Greek Social Security Numbers (ΑΜΚΑ). It was created by IBM scientist Hans Peter Luhn and described in U.S. Patent No. 2,950,048, filed on January 6, 1954, and granted on August 23, 1960.
The algorithm is in the public domain and is in wide use today. It is specified in ISO/IEC 7812-1. It is not intended to be a cryptographically secure hash function; it was designed to protect against accidental errors, not malicious attacks. Most credit cards and many government identification numbers use the algorithm as a simple method of distinguishing valid numbers from mistyped or otherwise incorrect numbers.
## Usage
**C++**
```cpp
string number= '1234567879855431';
luhn(number);
```
**Java**
```java
String number= '1234567879855431';
luhn(number);
```
**Javascript**
```js
var number= '1234567879855431';
luhn(number);
```
**php**
```php
$number= '1234567879855431';
luhn($number);
```
**Bash**
```shell
bash luhn.sh 1234567879855431
```
**Python**
```python
number= '1234567879855431'
luhn(number)
```