> For the complete documentation index, see [llms.txt](https://docs.payon.com.kh/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payon.com.kh/payons-library/how-to-encrypt-data-with-rsa.md).
# How to encrypt data with RSA
## Init required library to you page
```html
```
### Prepare your JavaScript
```javascript
let encrypt = new JSEncrypt({
default_key_size: 2048
})
//YOUR PUBLIC KEY
var publicKey = $('#pubKey').val();
var data = "TO BE ENCRYPTED DATA"
encrypt.setPublicKey(publicKey);
var _encryptedData = encrypt.encrypt(data);
```
##