Java by API/javax.crypto/SealedObject — различия между версиями

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м (1 версия)
 
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Текущая версия на 14:47, 31 мая 2010

javax.crypto.SealedObject

  
import java.security.Key;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SealedObject;
public class MainClass {
  public static void main(String[] args) throws Exception {
    String creditCard = "1234567890";
    KeyGenerator keyGenerator = KeyGenerator.getInstance("DESede");
    Key key = keyGenerator.generateKey();
    Cipher cipher = Cipher.getInstance("DESede");
    cipher.init(Cipher.ENCRYPT_MODE, key);
    SealedObject so = new SealedObject(creditCard, cipher);
    String unencryptedCreditCard = (String) so.getObject(key);
    System.out.println(unencryptedCreditCard);
  }
}





SealedObject: getObject(Key key) throws IOException, ClassNotFoundException, NoSuchAlgorithmException, InvalidKeyException

  
import java.security.Key;
import javax.crypto.Cipher;
import javax.crypto.KeyGenerator;
import javax.crypto.SealedObject;
public class MainClass {
  public static void main(String[] args) throws Exception {
    String creditCard = "1234567890";
    KeyGenerator keyGenerator = KeyGenerator.getInstance("DESede");
    Key key = keyGenerator.generateKey();
    Cipher cipher = Cipher.getInstance("DESede");
    cipher.init(Cipher.ENCRYPT_MODE, key);
    SealedObject so = new SealedObject(creditCard, cipher);
    String unencryptedCreditCard = (String) so.getObject(key);
    System.out.println(unencryptedCreditCard);
  }
}