Pkcs11 and Sign Problem

Question

hi:
i have a usbkey and use it do the sign work with the PKCS11 .
the programme is below:
import java.lang.*;
import java.security.*;
import java.security.cert.*;
import sun.misc.BASE64Encoder;
import javax.crypto.spec.SecretKeySpec;
import java.util.*;
public class TestPkcs11 {
public static void main(String[] args) throws Exception {
String configName = "pkcs11.cfg";
Provider p = new sun.security.pkcs11.SunPKCS11(configName);
Security.addProvider(p);
String pin = "1234";
KeyStore ks = KeyStore.getInstance("PKCS11");
ks.load(null, pin.toCharArray());
java.security.cert.Certificate certs[]=null;
Enumeration e = ks.aliases();
int i=0;
String alias[]=new String[2];
PrivateKey pKey[]=new PrivateKey[2];
java.security.cert.Certificate cert=null;
while (e.hasMoreElements())
     alias[i] = String.valueOf(e.nextElement());
     cert=ks.getCertificate(alias);
     pKey[i]=(PrivateKey)ks.getKey(alias[i],pin.toCharArray());
     i++;                    
Signature sig = Signature.getInstance("MD5withRSA",p);
sig.initSign(pKey[0]);//Problem is here;
String s = "Hello World";
sig.update(s.getBytes());
System.out.println("signning�I");
byte[] sigBytes = sig.sign();
System.out.println(s +
"signned byte�F" +
new BASE64Encoder().encode(sigBytes));
System.out.println("Verifying�I");
sig.initVerify(cert.getPublicKey());
sig.update(s.getBytes());
if (sig.verify(sigBytes))
System.out.println( "success�I");
Exception in thread "main" java.security.InvalidKeyException: Private key must be instance of RSAPrivate(Crt)Key or have PKCS#8 encoding
at sun.security.pkcs11.P11RSAKeyFactory.implTranslatePrivateKey(P11RSAKeFactory.java:82)
at sun.security.pkcs11.P11KeyFactory.engineTranslateKey(P11KeyFactory.java:115)
at sun.security.pkcs11.P11KeyFactory.convertKey(P11KeyFactory.java:48)
at sun.security.pkcs11.P11Signature.engineInitSign(P11Signature.java:273)
at java.security.Signature$Delegate.engineInitSign(Signature.java:1098)
at java.security.Signature.initSign(Signature.java:485)
at TestPkcs11.main(TestPkcs11.java:50)
it is urgent! Help!!!!!!!!!!!

Answer 1

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