java - 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
问题描述
使用 java 应用 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 脚本的结果与预期结果相同
- Java 代码结果:D2FE0F26716FF6F7
解决方案
HEXES 变量没有正确的值,因此将其替换为 0123456789ABCDEF
byte[] plain = Hex.decodeHex(valueStr.toCharArray()); 错误的赋值替换为 DatatypeConverter.parseHexBinary(valueStr);
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