Example to Convert any Input Value in MD5 in React Native

MD5 Encoding

This is an Example to Convert any Input Value in MD5 in React Native. We will use the function md5() to convert our Input Text into MD5. You need this useful example while making your login and registration screen because we do not store the user’s password as it is; we first encode the password and then stores it in the database.

Encoding password in md5 is the basic encoding and not recommended for the high-security platforms instead of that use SHA256 encoding for the password. You can also encode the password with both using MD5 and SHA256 after each other which will make the decoding of the password nearly impossible.

MD5 stands for ‘Message-Digest algorithm 5’. The MD5 algorithm is used as a cryptographic hash function or a file fingerprint. It is non-reversible and very safe for password security.

How to Encode any Text to MD5?

md5(this.state.text)

To Make a React Native App

Getting started with React Native will help you to know more about the way you can make a React Native project. We are going to use react-native init to make our React Native App. Assuming that you have node installed, you can use npm to install the react-native-cli command line utility. Open the terminal and go to the workspace and run

npm install -g react-native-cli

Run the following commands to create a new React Native project

react-native init ProjectName

If you want to start a new project with a specific React Native version, you can use the --version argument:

react-native init ProjectName --version X.XX.X
react-native init ProjectName --version react-native@next

This will make a project structure with an index file named App.js in your project directory.

Installation of Dependency

To use md5() we have to install md5 package.

To install this open the terminal and jump into your project using

cd ProjectName

Run the following command

npm install md5 --save

This command will copy all the dependencies into your node_module directory, You can find the directory in node_module the directory named md5. –save is optional, it is just to update the md5 dependency in your package.json file.

Code to Encode any Text to MD5

Now Open App.js in any code editor and replace the code with the following code

App.js

/*This is an Example to conver any value into MD5*/
import React from 'react';
//import React in our project
import { Text, View, StyleSheet, TextInput, Button } from 'react-native';
//import all the components we needed
import md5 from 'md5';
//import md5 to use md5()
export default class App extends React.Component {
  constructor(props) {
    super(props);
    //initial value of Text
    this.state = {
      text: '',
    };
  }
  render() {
    return (
      <View style={styles.container}>
        <Text>
          {this.state.text == ''
            ? 'Please insert any value to convert in md5'
            : md5(this.state.text) //<-----Here is the trick
          }
        </Text>
        <TextInput
          style={styles.inputStyle}
          onChangeText={text => this.setState({ text })}
          placeholder="Enter Any Value"
          value={this.state.text}
        />
      </View>
    );
  }
}
const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: 'center',
    alignItems: 'center',
    paddingTop: 20,
    backgroundColor: 'white',
  },
  inputStyle: {
    height: 40,
    width: 200,
    marginTop: 16,
    textAlign: 'center',
    borderColor: 'gray',
    backgroundColor: '#ecf0f1',
    borderWidth: 1,
  },
});

To Run the React Native App

Open the terminal again and jump into your project using.
cd ProjectName
To run the project on an Android Virtual Device or on real debugging device
react-native run-android
or on the iOS Simulator by running
react-native run-ios (macOS only).

Output Screenshots

   

Output in Online Emulator

This is how you can convert any Input Value in MD5 in React Native. If you have any doubts or you want to share something about the topic you can comment below or contact us here. There will be more posts coming soon. Stay tuned!

Hope you liked it. 🙂


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3 thoughts on “Example to Convert any Input Value in MD5 in React Native”

  1. DO NOT USE AN MD5 FOR STORING PASSWORDS. Make sure you read up on the topic before taking and storing users’ passwords. SHA-256 or BCrypt are safer alternatives.

    Reply

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