暗号化処理
import java.security.AlgorithmParameters;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec;
import org.apache.commons.codec.binary.Hex;
public class CipherSample{
static String FORMATION = "DESede/CBC/PKCS5Padding";
static String MY_KEY="123456789012345678901234"; // 24 charcter
public static void main(String args) throws Exception{
String str = "abcdあいう123";
String es,es2;
SecretKeyFactory keyFac = SecretKeyFactory.getInstance("DESede");
DESedeKeySpec keySpec = new DESedeKeySpec(MY_KEY.getBytes());
SecretKey secKey = keyFac.generateSecret(keySpec);
Cipher encoder = Cipher.getInstance(FORMATION);
encoder.init(Cipher.ENCRYPT_MODE,secKey);
byte tb = encoder.doFinal(str.getBytes());
byte iv = encoder.getIV();
IvParameterSpec ivSpec = new IvParameterSpec(iv);
String estr = new String(Hex.encodeHex(tb));
System.out.println("estr = "+estr);
Cipher decoder = Cipher.getInstance(FORMATION);
decoder.init(Cipher.DECRYPT_MODE,secKey,ivSpec);
String fk = new String(decoder.doFinal(Hex.decodeHex(estr.toCharArray())));
System.out.println(fk);
}
}