Android AES Decrypt decryptUrlDecode(String dataPassword, String encrypted)

Description

decrypt Url Decode

License

Apache License

Declaration

public static String decryptUrlDecode(String dataPassword,
        String encrypted) throws Exception 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import org.apache.commons.codec.binary.Base64;

import java.net.URLDecoder;

public class Main {
    private static final byte[] ENCRYPT_IV = { 0x0, 0x0, 0x0, 0x0, 0x0,
            0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0 };
    private static final String CHARSET = "UTF-8";

    public static String decryptUrlDecode(String dataPassword,
            String encrypted) throws Exception {
        return decrypt(dataPassword, URLDecoder.decode(encrypted, CHARSET));
    }/*w w  w .  java  2 s  .c  o m*/

    public static String decrypt(String dataPassword, String encrypted)
            throws Exception {
        byte[] byteMi = Base64.decodeBase64(encrypted);
        IvParameterSpec zeroIv = new IvParameterSpec(ENCRYPT_IV);
        SecretKeySpec key = new SecretKeySpec(dataPassword.getBytes(),
                "AES");
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        cipher.init(Cipher.DECRYPT_MODE, key, zeroIv);
        byte[] decryptedData = cipher.doFinal(byteMi);

        return new String(decryptedData, CHARSET);
    }
}

Related

1. decryptBytes(String seed, byte[] encrypted)
2. decryptBytes(byte[] data, byte[] key)
3. decryptHex(String content, String key)
4. decryptHex(String content, String username, String password)
5. decryptNumberWithAES(String encrypted)
6. aesDecode(String seed, String encrypted)
7. decrypt(byte[] raw, byte[] encrypted)
8. decrypt(Context context, String encrypted)
9. decrypt(Context context, String encrypted)