SignVerifyPIXJWS.java

Example of PIX standard JWS signature and validation defined in the SPI (Instant Payment System).

See Note on examples.

package doxy.examples;
 
import java.io.IOException;
 
import com.dinamonetworks.Dinamo;
import com.dinamonetworks.JwsComponents;
 
public class SignVerifyPIXJWS {
 
    public static void main(String[] args) throws IOException {
 
        String strAddr = "127.0.0.1";
        String strUsrId = "master";
        String strPwd = " 12345678";
 
        int nPort = 4433;
        int nFlags = 0;
 
        String header =  "{\"alg\":\"RS256\"}";
        String payload = "{\"iss\":\"joe\"," +
                         "\"exp\":1300819380," +
                         "\"http://example.com/is_root\":true}";
 
        Dinamo api = new Dinamo();
 
        try {
            api.openSession(strAddr, strUsrId, strPwd, nPort, nFlags);
            System.out.println("Connected.");
 
            String strPrivKeyId = "key"; //Name of key in HSM
 
            byte[] signedJWS = api.signPIXJWS(strPrivKeyId,
                                              header.getBytes("UTF-8"),
                                              payload.getBytes("UTF-8"));
 
            System.out.println(new String(signedJWS));
 
            String strChainId = "key_chain"; //Name of the certificate chain in the HSM
 
            //Opção 1 de validação de assinatura PIX JWS
            boolean ret = api.checkPIXJWS(strChainId, null, signedJWS);
            System.out.println("Signature ok: " + ret);
 
            //Opção 2 de validação de assinatura PIX JWS
            JwsComponents jwsComponents = api.checkPIXJWS(strChainId, null, signedJWS, 0);
            System.out.println("Header: " + new String(jwsComponents.getHeader());
            System.out.println("Payload: " + new String(jwsComponents.getPayload());
            System.out.println("Return Code: " + jwsComponents.getRet_code());
            System.out.println("Signature ok: " + (jwsComponents.getRet_code() == 0));
            api.closeSession();
 
        } catch (br.com.trueaccess.TacException e) {
            e.printStackTrace();
        }
 
        System.out.println("Finished.");
    }
}