(Java) Hash File: SHA-1, HAVAL, MD2, MD5, SHA-256, SHA-384, SHA-512

Computing the hash for a file of any size.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkCrypt2 crypt = new CkCrypt2();

    // Any type of file may be hashed.
    // There is  no size limitation because the file is consumed
    // in streaming mode internally.
    String filename;
    filename = "something.zip";

    crypt.put_HashAlgorithm("sha1");
    crypt.put_EncodingMode("hex");

    // Other possible EncodingMode settings are: 
    // "quoted-printable", "base64", "base32", and "url"

    String hash = crypt.hashFileENC(filename);
    System.out.println("SHA1:");
    System.out.println(hash);

    // Hash using MD2
    crypt.put_HashAlgorithm("md2");
    hash = crypt.hashFileENC(filename);
    System.out.println("MD2:");
    System.out.println(hash);

    // Hash using MD5
    crypt.put_HashAlgorithm("md5");
    hash = crypt.hashFileENC(filename);
    System.out.println("MD5:");
    System.out.println(hash);

    // Hash using SHA-256
    crypt.put_HashAlgorithm("sha256");
    hash = crypt.hashFileENC(filename);
    System.out.println("SHA256:");
    System.out.println(hash);

    // Hash using SHA-384
    crypt.put_HashAlgorithm("sha384");
    hash = crypt.hashFileENC(filename);
    System.out.println("SHA384:");
    System.out.println(hash);

    // Hash using SHA-512
    crypt.put_HashAlgorithm("sha512");
    hash = crypt.hashFileENC(filename);
    System.out.println("SHA512:");
    System.out.println(hash);

    // Hash using HAVAL
    // There are two additional properties relevant to HAVAL:
    // HavalRounds, and KeyLength.
    // HavalRounds can have values of 3, 4, or 5.
    // KeyLength can have values of 128, 160, 192, 224, or 256
    crypt.put_HashAlgorithm("haval");
    crypt.put_HavalRounds(5);
    crypt.put_KeyLength(256);
    hash = crypt.hashFileENC(filename);
    System.out.println("Haval:");
    System.out.println(hash);
  }
}