Java snippet to generate Twitter Webhooks CRC response
import javax.crypto.Mac;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;
public class CRC_Example {
public static void main(String[] args) {
try {
String consumer_secret = "secret";
String crc_token = "Message";
Mac sha256_HMAC = Mac.getInstance("HmacSHA256");
SecretKeySpec secret_key = new SecretKeySpec(consumer_secret.getBytes("UTF-8"), "HmacSHA256");
sha256_HMAC.init(secret_key);
String hash = Base64.encodeBase64String(sha256_HMAC.doFinal(crc_token.getBytes("UTF-8")));
System.out.println("sha256=" + hash);
}
catch (Exception e){
System.out.println("Error");
}
}
}
Requires Apache Commons Codec
Usage:
$ javac ./CRC_Example.java -cp ./commons-codec-1.10/commons-codec-1.10.jar
$ java -cp .:./commons-codec-1.10/commons-codec-1.10.jar CRC_Example