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(Java) HMAC SHA-1 to Match RFC 2022 Test Vectors

Demonstrates using Chilkat in Java to computer HMAC SHA-1 message authentication codes to match the test vectors given by RFC 2202.

Chilkat Java Downloads

Java Libs for Windows, Linux, Alpine Linux,
MAC OS X, Solaris, FreeBSD, OpenBSD,
Raspberry Pi and other single board computers

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[])
  {
    CkCrypt2 crypt = new CkCrypt2();

    //  Any string argument automatically begins the 30-day trial.
    boolean success = crypt.UnlockComponent("Anything for 30-day trial.");
    if (success != true) {
        System.out.println(crypt.lastErrorText());
        return;
    }

    //  The output will be Hex, so set the EncodingMode:
    crypt.put_EncodingMode("hex");

    //  Set the hash algorithm:
    //  Choices are: md5, sha-1, sha256, sha384, sha512, md2, haval
    crypt.put_HashAlgorithm("sha-1");

    String mac;

    //  Set the HMAC key:
    crypt.SetHmacKeyEncoded("0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b0b","hex");
    mac = crypt.hmacStringENC("Hi There");
    System.out.println(mac);

    crypt.SetHmacKeyEncoded("Jefe","ansi");
    mac = crypt.hmacStringENC("what do ya want for nothing?");
    System.out.println(mac);

  }
}

 

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