Implementation of RSA Algorithm Encryption and Decryption in IONIC Application

HI , i am new to ionic application development so i need your guidance in the below :-

We are building a Ionic Phonegap Application targeting IOS and Android Devices.

I want to Encrypt and store data in my local database for that i want to use RSA Algorithm Encryption and Decryption , but i want to know how can i implement this ??

can you provide some codebase or reference for the below :-

1) RSA Algorithm Encryption and Decryption in Ionic

2) RSA Algorithm Encryption and Decryption in Angular JS

3) RSA Algorithm Encryption and Decryption in javascript

Request you to please help me out in this.

Looking forward for your response.