HMAC signature

hmac_token_signature.java

		// base string - this string will be used to generate mac signature.
		StringBuilder baseString = new StringBuilder();

		/*
		 * The order is CRITICAL! And no "\n" at the end. 
		 * 
		 * Timestamp + \n + nonce + \n+ httpmethod + \n +
		 * host + \n + path + \n + bodyHash
		 */

		String newline = "\n";
		baseString.append(ts).append(newline).append(nonce).append(newline)
				.append(host).append(newline).append(resourcePath).append(newline)
				.append(bodyHash);
		
		// Generate signature using client secret (crypto initialized above)

		byte[] signatureBytes = mac.doFinal(baseString.toString().getBytes(UTF8_ENCODING));

		// now encode the cypher for the web

		String signatureStr = Base64.encodeBase64String(signatureBytes);