java 加密后的结果为： D8B5E8E040EAFDB4E7D02A4D235A2462193D557C7DEE2D0E
package com.oa.base;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESKeySpec;
import javax.crypto.spec.IvParameterSpec;
import org.w3c.dom.*;
import com.primeton.crimson.tree.ElementNode;
import com.primeton.eos.bizlets.util.BNXmlUtil;
import com.primeton.tp.core.api.BizContext;
public class Encrypt {
private static final String keys="8b57d0d3";
public static String myDecrypt(String message, String key) throws Exception {
byte[] bytesrc = convertHexString(message);
Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("US-ASCII"));
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
IvParameterSpec iv = new IvParameterSpec(key.getBytes("US-ASCII"));
cipher.init(Cipher.DECRYPT_MODE, secretKey, iv);
byte[] retByte = cipher.doFinal(bytesrc);
return new String(retByte);
}
public static String myEncrypt(String message, String key) throws Exception {
// message = java.net.URLEncoder.encode(message, "ascii");
Cipher cipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
DESKeySpec desKeySpec = new DESKeySpec(key.getBytes("US-ASCII"));
SecretKeyFactory keyFactory = SecretKeyFactory.getInstance("DES");
SecretKey secretKey = keyFactory.generateSecret(desKeySpec);
IvParameterSpec iv = new IvParameterSpec(key.getBytes("US-ASCII"));
cipher.init(Cipher.ENCRYPT_MODE, secretKey, iv);
byte[] encryptbyte = cipher.doFinal(message.getBytes());
return toHexString(encryptbyte).toUpperCase();
}
public static byte[] convertHexString(String ss) {
byte digest[] = new byte[ss.length() / 2];
for (int i = 0; i < digest.length; i++) {
String byteString = ss.substring(2 * i, 2 * i + 2);
int byteValue = Integer.parseInt(byteString, 16);
digest[i] = (byte) byteValue;
}
return digest;
}
public static String toHexString(byte b[]) {
StringBuffer hexString = new StringBuffer();
for (int i = 0; i < b.length; i++) {
String plainText = Integer.toHexString(0xff & b[i]);
if (plainText.length() < 2)
plainText = "0" + plainText;
hexString.append(plainText);
}
return hexString.toString();
}
/**
*
* @param doc type: Document, DOM;
* @param param type: BizContext;
* @return: int ,运算逻辑返回值，如果失败返回0，成功返回1
* @throws Exception
* <p>
* ** bizlet 的显示名称 **
* @bizlet_displayName Encrypt
*/
public static int Encrypt(Document doc, BizContext param) throws Exception{
Node userID = (Node)param.getParaObjectAt(0);
String user = myDecrypt(BNXmlUtil.getNodeValue(userID), keys);
BNXmlUtil.setNodeValue(userID, user);
return 1;
}
}
这个是 Java 方面的加密方式及解密方式， 如何在 ruby 中使用 DES 解密 Java 中加密的内容？ ruby 解密之后的结果应该为 2018h03e29h11eng
我自己编写的 ruby 解密：
@string = params[:user_name]
@length = @string.length/2
@my_range = 0..@length
@my_array = []
for i in @my_range
temp_string = @string[2 * i, 2]
temp_integer = temp_string.to_i(16)
@my_array << [temp_integer].pack("C").unpack("c")[0]
end
@my_array.delete(@my_array.last)
@my_array = [-40, -75, -24, -32, 64, -22, -3, -76, -25, -48, 42, 77, 35, 90, 36, 98, 25, 61, 85, 124, 125, -18, 45, 14]
@key = "8b57d0d3"
@cipher = OpenSSL::Cipher.new('DES-EDE3-CBC')
@des_key = @key.encode('US-ASCII')
@cipher.pkcs5_keyivgen(@key, @des_key)
@cipher.decrypt
@cipher.update(@my_array) + @cipher.final
可是我的解密就是解不出来，我不知道如何办了，请大神指教
@miserytan 拿去，不谢！^_^
require 'openssl'
# DES加密
def encrypt(context, key: '8b57d0d3')
cipher = OpenSSL::Cipher::DES.new.encrypt.tap { |obj| obj.key = obj.iv = key }
(cipher.update(context) + cipher.final).unpack1('H*').upcase
end
2.5.0 :001 > encrypt('2018h03e29h11eng') == 'D8B5E8E040EAFDB4E7D02A4D235A2462193D557C7DEE2D0E'
=> true
# DES解密
def decrypt(context, key: '8b57d0d3')
cipher = OpenSSL::Cipher::DES.new.decrypt.tap { |obj| obj.key = obj.iv = key }
cipher.update([context].pack('H*')) + cipher.final
end
2.5.0 :002 > decrypt('D8B5E8E040EAFDB4E7D02A4D235A2462193D557C7DEE2D0E') == '2018h03e29h11eng'
=> true