Question

使用Java进行3des加密时，与3des在线工具和oracle DB脚本相比，java代码生成错误的结果

3des加密，Java

  SET SERVEROUTPUT ON;

    declare
    l_mod_ofb pls_integer;  
     l_mod_ecb pls_integer;
      v_key raw(32);   
      v_iv  raw(16);
      v_test_in raw(16);   v_ciphertext raw(16);

    begin
      l_mod_ecb := dbms_crypto.ENCRYPT_3DES_2KEY + dbms_crypto.CHAIN_CBC  + DBMS_CRYPTO.PAD_NONE ;
      v_key      :=   hextoraw  ('1FB3F48A6D51832CE91C1C734554086D');
      v_iv       :=   hextoraw  ('041234FFFFFFFFFF');                
      v_test_in  :=   hextoraw  ('0000211111111110');                

      v_ciphertext := dbms_crypto.encrypt(src => v_test_in,
                                          TYP => l_mod_ecb,
                                          key => v_key,
                                          iv => v_iv);

      dbms_output.put_line(' Ciphertext  : '||rawtohex(v_ciphertext));

    end;

------------------- Java代码

import javax.crypto.BadPaddingException;
import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import javax.xml.bind.DatatypeConverter;
import org.apache.commons.codec.DecoderException;
import org.apache.commons.codec.binary.Hex;

public class TripleDes {

private static String SHARED_KEY = "1FB3F48A6D51832CE91C1C734554086D";
private static String ivString = "041234FFFFFFFFFF";
private static String valueStr = "0000211111111110";
static final String HEXES = "041217DB6AEFF7CF";

public static void main(String[] args) throws DecoderException, Exception {

    TripleDes tr = new TripleDes();
    byte[] plain = Hex.decodeHex(valueStr.toCharArray());
    byte[] codedtext = tr.encrypt(plain);
    System.out.println("Encrypted Result = " + getHex(codedtext));
}



public byte[] encrypt(byte[] plainTextBytes) throws Exception {
    TripleDes tr = new TripleDes();
    byte[] keyValue = getKey(Hex.decodeHex(SHARED_KEY.toCharArray()));
    System.out.println(Hex.encodeHex(keyValue));
    IvParameterSpec iv = new IvParameterSpec(Hex.decodeHex(ivString.toCharArray()));
    //DESede
    final SecretKey key = new SecretKeySpec(keyValue, "DESede");
    final Cipher cipher = Cipher.getInstance("DESede/CBC/NoPadding");
    cipher.init(Cipher.ENCRYPT_MODE, key, iv);
    final byte[] cipherText = cipher.doFinal(plainTextBytes);
    return cipherText;
}

public static byte[] getKey(byte[] keyBytes) {
    byte[] key;
    if (keyBytes.length == 16) {
        key = new byte[24];
        System.arraycopy(keyBytes, 0, key, 0, 16);
        System.arraycopy(keyBytes, 0, key, 16, 8);
    } else {
        key = keyBytes;
    }

    return key;
}

public static String getHex(byte[] raw) {
    if (raw == null) {
        return null;
    }
    final StringBuilder hex = new StringBuilder(2 * raw.length);
    for (final byte b : raw) {
        hex.append(HEXES.charAt((b & 0xF0) >> 4))
                .append(HEXES.charAt((b & 0x0F)));
    }
    return hex.toString();
}
}

-----------------在线工具使用以下参数

Input type: Text
Input text:(hex)0000211111111110
Function: 3DES  
Mode: CBS   
Key: (hex)1FB3F48A6D51832CE91C1C734554086D1FB3F48A6D51832C
Init. vector:   041234FFFFFFFFFF

预期结果是63CA0F38548CC8B5
在线工具和oracle脚本的结果等于预期结果
Java代码结果：D2FE0F26716FF6F7

Answer 1

HEXES变量的值不正确，因此将其替换为0123456789ABCDEF
byte [] plain = Hex.decodeHex（valueStr.toCharArray（））;错误的分配替换为DatatypeConverter.parseHexBinary（valueStr）;

3DES，Java代码结果与3des在线工具和oracle数据库脚本产生不同的结果

1 个答案: