React Native

Hash the Contents of a File (SHA256 and other hash algorithms)

See more Encryption Examples

Demonstrates how to hash the contents of a file using SHA256, SHA384, SHA512, MD2, MD5, HAVAL, RIPEMD, etc. React Native

import { Crypt2, StringBuilder } from '@chilkat/react-native'

async function chilkatExample() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  const crypt = new Crypt2();

  // Choose the hash algorithm.
  // Can be  "sha1", "sha256", "sha384", "sha512", "md2", "md5", "haval", "ripemd128", "ripemd160","ripemd256", or "ripemd320".
  crypt.hashAlgorithm = 'sha256';

  const hashBytes = await crypt.hashFileAsync('qa_data/jpg/starfish.jpg');

  // Let's examine the hash as a hex string.
  const sb = new StringBuilder();
  sb.appendEncoded(hashBytes, 'hex');
  console.log(`SHA256 hash = ${sb.getAsString()}`);
}