Can anyone help me to convert C# code to angularjs or java

See more:

C#

Java

Base64

AngularJs

Am trying the following in c# and its working,

/*creating base64 encoded signature in C#*/

var secret = "#asecret#";
 var message = "Thu, 26 Oct 2017 06:41:08 GMT/myaccount/mymessage";
using (var hmac = new HMACSHA256())
  {
     hmac.Key = Convert.FromBase64String(secret);
     byte[] sigbyte = hmac.ComputeHash(Encoding.UTF8.GetBytes(message));
     sig = Convert.ToBase64String(sigbyte);
  }

Need help to convert the same to angularjs or java.

What I have tried:

I tried the following which is not working,

String secret = "#asecret#";
String message = "Thu, 26 Oct 2017 06:41:08 GMT/myaccount/mymessage";

Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
SecretKeySpec secret_key = new SecretKeySpec(secret.getBytes(),"HmacSHA256");
sha256_HMAC.init(secret_key);
String hash = Base64.encodeBase64String(sha256_HMAC.doFinal(message.getBytes()));