react-native-ssl-publickey

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Overview

react-native-ssl-publickey is a React Native library that provides functionality to fetch and compute the SHA-256 hash of the public key from SSL certificates of a given domain. This library is particularly useful for scenarios where you need to verify the SSL certificate of a remote server programmatically within your React Native application.

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Installation

To install react-native-ssl-publickey, you can use npm or yarn:

npm install react-native-ssl-publickey

or

yarn add react-native-ssl-publickey

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Usage

After installing the package, you can use the getPublicHashKey function to fetch the SHA-256 hash of the public key for a given domain. Here's an example of how you can use it in your React Native application:

import { useEffect, useState } from 'react';
import { StyleSheet, Text, View } from 'react-native';
import { getPublicHashKey } from 'react-native-ssl-publickey';

export default function App() {
  const [hash, setHash] = useState("");

  useEffect(() => {
    getPublicHashKey && getPublicHashKey('randomuser.me').then((_hash: string) => {
      setHash(_hash)
    })
  }, []);

  return (
    <View style={styles.container}>
      <Text>PinSHA256{hash}</Text>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    backgroundColor: '#fff',
    alignItems: 'center',
    justifyContent: 'center',
  },
});

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Under the Hood

The library utilizes native code to establish a connection with the specified domain and extract the SSL certificates. It then computes the SHA-256 hash of the public key from the certificates and returns it to the calling React Native component.

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Contributing

Contributions to react-native-ssl-publickey are welcome! If you find any bugs or want to suggest improvements, feel free to open an issue or submit a pull request on the GitHub repository.

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License

react-native-ssl-publickey is licensed under the MIT License. You are free to use, modify, and distribute this software as per the terms of the license.

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