我使用3DES算法同时使用java代码和oracle数据库对String进行加密，oracle数据库的结果正确无误，需要java代码生成相同的oracle数据库结果，但是java代码抛出异常（java.security.InvalidKeyException：无效的密钥长度：16个字节）
--------------------- Oracle script-----------------------
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;
脚本输出结果：63CA0F38548CC8B5
以下Java，3DES加密算法代码：
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
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 {
byte[] keyValue = Hex.decodeHex(SHARED_KEY.toCharArray());
IvParameterSpec iv = new IvParameterSpec(ivString.getBytes());
//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 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();
}
}