java.security.InvalidKeyException: Parameters missing

Question

java.security.InvalidKeyException: Parameters missing
at com.sun.crypto.provider.SunJCE_h.a(DashoA12275)
at com.sun.crypto.provider.DESCipher.engineInit(DashoA12275)
at javax.crypto.Cipher.a(DashoA12275)
at javax.crypto.Cipher.a(DashoA12275)
at javax.crypto.Cipher.init(DashoA12275)
at javax.crypto.Cipher.init(DashoA12275)
at com.commom.encrypt.impl.DESMessageEncryptor.decryptMessage(DESMessageEncryptor.java:48)
at com.commom.encrypt.impl.DESMessageEncryptor.main(DESMessageEncryptor.java:96)请大家帮忙看一下!这是什么原应的错误

Answer 1

import java.security.SecureRandom;
import java.security.Security;import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;import com.commom.constants.Constants;
import com.commom.encrypt.IMessageEncryptor;public class DESMessageEncryptor implements IMessageEncryptor { public String decryptMessage(String encryptedText) {
// TODO Auto-generated method stub
String passwordString = encryptedText.substring(0, 12);
String cipherString = encryptedText.substring(12, encryptedText
.length());
BASE64Decoder decoder = new BASE64Decoder();
try {
byte[] password = decoder.decodeBuffer(passwordString);
System.out.println(new BASE64Encoder().encode(password));
byte[] cipherText = decoder.decodeBuffer(cipherString);
System.out.println(new BASE64Encoder().encode(cipherText));
Security.addProvider(new com.sun.crypto.provider.SunJCE());
DESKeySpec keySpec = new DESKeySpec(password);
SecretKeyFactory keyFactory = SecretKeyFactory
.getInstance(Constants.DES_ALGORITHM);
SecretKey key = keyFactory.generateSecret(keySpec);
Cipher cipher = Cipher
.getInstance(Constants.DES_OFB32_PKCS5PADDING);
cipher.init(Cipher.DECRYPT_MODE, key);
return new String(cipher.doFinal(cipherText));
} catch (Exception e) {
e.printStackTrace();
return null;
}
} public String encryptMessage(String plainText) {
// TODO Auto-generated method stub
try {
byte[] password = new byte[8];
SecureRandom random = new SecureRandom();
random.nextBytes(password);
System.out.println(new BASE64Encoder().encode(password));
Security.addProvider(new com.sun.crypto.provider.SunJCE());
DESKeySpec keySpec = new DESKeySpec(password);
SecretKeyFactory keyFactory = SecretKeyFactory
.getInstance(Constants.DES_ALGORITHM);
SecretKey key = keyFactory.generateSecret(keySpec);
Cipher cipher = Cipher
.getInstance(Constants.DES_OFB32_PKCS5PADDING);
cipher.init(Cipher.ENCRYPT_MODE, key);
byte[] cipherText = cipher.doFinal(plainText.getBytes());
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(password).concat(encoder.encode(cipherText));
} catch (Exception e) {
e.printStackTrace();
return null;
}
} public static void main(String[] args) {
DESMessageEncryptor test1 = new DESMessageEncryptor();
String cipher = test1.encryptMessage("programmer");
System.out.println(cipher);
System.out.println(test1.decryptMessage(cipher));
}
}

Answer 2

at com.sun.crypto.provider.SunJCE_h.a(DashoA12275)
at com.sun.crypto.provider.DESCipher.engineInit(DashoA12275)
at javax.crypto.Cipher.a(DashoA12275)
at javax.crypto.Cipher.a(DashoA12275)
at javax.crypto.Cipher.init(DashoA12275)
at javax.crypto.Cipher.init(DashoA12275)
--------------------------------------------------------------------------------
自己看看这些包里的函数参数个数和类型跟你调用的对不对。

Answer 3

DES是非对称加密,加密和解密使用的密钥\初始化向量都要相同,否则当然解不了密

Answer 4

非要设置它的Initializatin Vector(IV)吗?

Answer 5

我没有设置Initializatin Vector(IV)为什么可以加密阿!

Answer 6

http://www.cnjbb.org/thread.jsp?boardid=3&threadid=42335如果使用函数,要把密钥保存下来.或者是生成密钥,供加密和解密时使用

Answer 7

http://www.cnjbb.org/thread.jsp?boardid=3&threadid=42335
这里面和我这没区别阿，我这里只是哪了个密码生成密钥！
它那里就是直接拿个密钥进行加密解密，一样的阿！　我这为什么什么会出
parameters  missing

Answer 8

package com.uitv.mboss.payment.test;import java.security.SecureRandom;
import java.security.Security;import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;public class DESMessageEncryptor { public String decryptMessage(String encryptedText) {
// TODO Auto-generated method stub
String passwordString = encryptedText.substring(0, 12);
String cipherString = encryptedText.substring(12, encryptedText
.length());
BASE64Decoder decoder = new BASE64Decoder();
try {
byte[] password = decoder.decodeBuffer(passwordString);
System.out.println(new BASE64Encoder().encode(password));
byte[] cipherText = decoder.decodeBuffer(cipherString);
System.out.println(new BASE64Encoder().encode(cipherText));
Security.addProvider(new com.sun.crypto.provider.SunJCE());
DESKeySpec keySpec = new DESKeySpec(password);
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey key = keyFactory.generateSecret(keySpec);
byte[] iv = new sun.misc.BASE64Decoder().decodeBuffer("t4JPbY+rXgk="); javax.crypto.spec.IvParameterSpec ips = new javax.crypto.spec.IvParameterSpec(
iv);
Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
cipher.init(Cipher.DECRYPT_MODE, key,ips);
System.out.println("IV1:");
System.out.println(new BASE64Encoder().encode(cipher.getIV()));
return new String(cipher.doFinal(cipherText));
} catch (Exception e) {
e.printStackTrace();
return null;
}
} public String encryptMessage(String plainText) {
// TODO Auto-generated method stub
try {
byte[] password = new byte[8];
SecureRandom random = new SecureRandom();
random.nextBytes(password);
System.out.println(new BASE64Encoder().encode(password));
Security.addProvider(new com.sun.crypto.provider.SunJCE());
DESKeySpec keySpec = new DESKeySpec(password);
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey key = keyFactory.generateSecret(keySpec);
Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
byte[] iv = new sun.misc.BASE64Decoder().decodeBuffer("t4JPbY+rXgk="); javax.crypto.spec.IvParameterSpec ips = new javax.crypto.spec.IvParameterSpec(
iv);
cipher.init(Cipher.ENCRYPT_MODE, key,ips);
System.out.println("IV0:");
System.out.println(new BASE64Encoder().encode(cipher.getIV()));
byte[] cipherText = cipher.doFinal(plainText.getBytes());
BASE64Encoder encoder = new BASE64Encoder();
return encoder.encode(password).concat(encoder.encode(cipherText));
} catch (Exception e) {
e.printStackTrace();
return null;
}
} public static void main(String[] args) {
DESMessageEncryptor test1 = new DESMessageEncryptor();
String cipher = test1.encryptMessage("programmer");
System.out.println(cipher);
System.out.println(test1.decryptMessage(cipher));
}
}

Answer 9

输出
fu8cCytO/PM=
IV0:
t4JPbY+rXgk=
fu8cCytO/PM=BKagejANzX2bpOL2WQAaqw==
fu8cCytO/PM=
BKagejANzX2bpOL2WQAaqw==
IV1:
t4JPbY+rXgk=
programmer