code如下，工作不与Android SDK的BufferdImage和ImageIO的没有解决。我试图实施位图和BitmapFactory，但它没有work.Please帮我在Android应用程序做到这一点。请更正为Android应用程序。 公共类计算器{

 公共静态无效的主要（字串[] ARG）抛出异常{

    扫描仪扫描=新的扫描仪（System.in）;
    byte []的盐= {（字节）0xc7，（字节）0x73（字节）为0x21，（字节）0x8c，
               （字节）0x7e格式，（字节）0xc8，（字节）0xee，（字节）0x99};

    {
        inputfile文件=新的文件（C：/Users/AMD/Desktop/bhp/pngg.jpg）;
        BufferedImage中输入= ImageIO.read（INPUTFILE）;
        密密码= Cipher.getInstance（AES / CBC / PKCS5Padding）;
        SecretKeyFactory keyFac = SecretKeyFactory.getInstance（PBEWithMD5AndDES）;

        PBEKeySpec pbeKeySpec =新PBEKeySpec（通.toCharArray（））;

        PBEParameterSpec pbeParamSpec =新PBEParameterSpec（盐，20）;
        SecretKey的PBEKey调用= keyFac.generateSecret（pbeKeySpec）;

        密pbeCipher = Cipher.getInstance（PBEWithMD5AndDES）;
        pbeCipher.init（Cipher.ENCRYPT_MODE，PBEKey调用，pbeParamSpec）;
        的FileOutputStream输出=新的FileOutputStream（C：/Users/AMD/Desktop/bhp/encrpngg.png）;
        CipherOutputStream COS =新CipherOutputStream（输出，pbeCipher）;

        ImageIO.write（输入，PNG，COS）;
        cos.close（）;
        inputFile.delete（）;

    }

    {
        PBEKeySpec pbeKeySpec =新PBEKeySpec（通.toCharArray（））;

        PBEParameterSpec pbeParamSpec =新PBEParameterSpec（盐，20）;
        SecretKeyFactory keyFac = SecretKeyFactory.getInstance（PBEWithMD5AndDES）;
        SecretKey的PBEKey调用= keyFac.generateSecret（pbeKeySpec）;

        密pbeCipher = Cipher.getInstance（PBEWithMD5AndDES）;
        pbeCipher.init（Cipher.DECRYPT_MODE，PBEKey调用，pbeParamSpec）;

        文件INFILE =新的文件（C：/Users/AMD/Desktop/bhp/encrpngg.png）;
        的FileInputStream FIS =新的FileInputStream（INFILE）;
        CipherInputStream顺=新CipherInputStream（FIS，pbeCipher）;
        BufferedImage的INPT = ImageIO.read（CIS）
        cis.close（）;
        的FileOutputStream输出=新的FileOutputStream（C：/Users/AMD/Desktop/bhp/decrpngg.jpg）;
        ImageIO.write（INPT，PNG，输出）;

    }
}
 

解决方案

我没有得到encrpted图像文件，可能是code不写加密文件。解密code具有同样的事情......

加密code：

  fileinputstrm =新的FileInputStream（路径）;
的BufferedInputStream输入=新的BufferedInputStream（fileinputstrm）;
密密码= Cipher.getInstance（AES / CBC / PKCS5Padding）;
SecretKeyFactory keyFac = SecretKeyFactory.getInstance（PBEWithMD5AndDES）;
PBEKeySpec pbeKeySpec =新PBEKeySpec（通.toCharArray（））;

PBEParameterSpec pbeParamSpec =新PBEParameterSpec（盐，20）;
SecretKey的PBEKey调用= keyFac.generateSecret（pbeKeySpec）;
密pbeCipher = Cipher.getInstance（PBEWithMD5AndDES）;
pbeCipher.init（Cipher.ENCRYPT_MODE，PBEKey调用，pbeParamSpec）;

的FileOutputStream输出=新的FileOutputStream（路径+.icrpt）;
CipherOutputStream COS =新CipherOutputStream（输出，pbeCipher）;

ByteArrayOutputStream字节=新ByteArrayOutputStream（）;
output.write（bytes.toByteArray（））;
cos.close（）;
 

解密code：

 字节[]盐= {（字节）0xc7，（字节）0x73（字节）为0x21，（字节）0x8c，
        （字节）0x7e格式，（字节）0xc8，（字节）0xee，（字节）0x99};
fileinputstrm =新的FileInputStream（路径）;

PBEKeySpec pbeKeySpec =新PBEKeySpec（通.toCharArray（））;

PBEParameterSpec pbeParamSpec =新PBEParameterSpec（盐，20）;
SecretKeyFactory keyFac = SecretKeyFactory.getInstance（PBEWithMD5AndDES）;
SecretKey的PBEKey调用= keyFac.generateSecret（pbeKeySpec）;

密pbeCipher = Cipher.getInstance（PBEWithMD5AndDES）;
pbeCipher.init（Cipher.DECRYPT_MODE，PBEKey调用，pbeParamSpec）;

的FileInputStream FIS =新的FileInputStream（路径）;
CipherInputStream顺=新CipherInputStream（FIS，pbeCipher）;
的BufferedInputStream BFI =新的BufferedInputStream（CIS）
bfi.read（）;
cis.close（）;
FileOutputStream中输出1 =新的FileOutputStream（路径+JPEG）;
ByteArrayOutputStream BAOS =新ByteArrayOutputStream（）;
的BufferedOutputStream BFO =新的BufferedOutputStream（第一路）;
output1.write（baos.toByteArray（））;
 

Code given below ,is not working with the android sdk "BufferdImage and ImageIO " not resolved . I've tried to implement "Bitmap" and "BitmapFactory", but it did not work.Please help me to do this at android application . Please correct in for an android application . public class stackoverflow {

public static void main(String[] arg) throws Exception {

    Scanner scanner = new Scanner(System.in);
    byte[] salt = { (byte) 0xc7, (byte) 0x73, (byte) 0x21, (byte) 0x8c,
               (byte) 0x7e, (byte) 0xc8, (byte) 0xee, (byte) 0x99 };

    {
        File inputFile = new File("C:/Users/AMD/Desktop/bhp/pngg.jpg");
        BufferedImage input = ImageIO.read(inputFile);
        Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
        SecretKeyFactory keyFac = SecretKeyFactory.getInstance("PBEWithMD5AndDES");

        PBEKeySpec pbeKeySpec = new PBEKeySpec("pass".toCharArray());          

        PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 20);
        SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);

        Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
        pbeCipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParamSpec);
        FileOutputStream output = new FileOutputStream("C:/Users/AMD/Desktop/bhp/encrpngg.png");
        CipherOutputStream cos = new CipherOutputStream(output, pbeCipher);

        ImageIO.write(input,"PNG",cos);
        cos.close();
        inputFile.delete();

    }

    {
        PBEKeySpec pbeKeySpec = new PBEKeySpec("pass".toCharArray());

        PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 20);
        SecretKeyFactory keyFac = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
        SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);

        Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
        pbeCipher.init(Cipher.DECRYPT_MODE, pbeKey, pbeParamSpec);

        File inFile=new File("C:/Users/AMD/Desktop/bhp/encrpngg.png");
        FileInputStream fis=new FileInputStream(inFile);
        CipherInputStream cis=new CipherInputStream(fis, pbeCipher);
        BufferedImage inpt=ImageIO.read(cis);
        cis.close();
        FileOutputStream output = new FileOutputStream("C:/Users/AMD/Desktop/bhp/decrpngg.jpg");
        ImageIO.write(inpt,"PNG",  output);

    }
}

I was not getting the encrpted image file, may be the code not write the encrypted file. Decryption code has the same thing ....

Encryption Code:

fileinputstrm=new FileInputStream(path);
BufferedInputStream input=new BufferedInputStream(fileinputstrm);
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
SecretKeyFactory keyFac = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
PBEKeySpec pbeKeySpec = new PBEKeySpec("pass".toCharArray());          

PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 20);
SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);
Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
pbeCipher.init(Cipher.ENCRYPT_MODE, pbeKey, pbeParamSpec);

FileOutputStream output = new FileOutputStream(path + ".icrpt");
CipherOutputStream cos = new CipherOutputStream(output, pbeCipher);

ByteArrayOutputStream bytes = new ByteArrayOutputStream();
output.write(bytes.toByteArray());
cos.close();

Decryption Code :

byte[] salt = { (byte) 0xc7, (byte) 0x73, (byte) 0x21, (byte) 0x8c,
        (byte) 0x7e, (byte) 0xc8, (byte) 0xee, (byte) 0x99 };
fileinputstrm = new FileInputStream(path);

PBEKeySpec pbeKeySpec = new PBEKeySpec("pass".toCharArray());

PBEParameterSpec pbeParamSpec = new PBEParameterSpec(salt, 20);
SecretKeyFactory keyFac = SecretKeyFactory.getInstance("PBEWithMD5AndDES");
SecretKey pbeKey = keyFac.generateSecret(pbeKeySpec);

Cipher pbeCipher = Cipher.getInstance("PBEWithMD5AndDES");
pbeCipher.init(Cipher.DECRYPT_MODE, pbeKey, pbeParamSpec);

FileInputStream fis=new FileInputStream(path);
CipherInputStream cis=new CipherInputStream(fis, pbeCipher);
BufferedInputStream bfi=new BufferedInputStream(cis);
bfi.read();
cis.close();
FileOutputStream output1 = new FileOutputStream(path+".jpeg");
ByteArrayOutputStream baos=new ByteArrayOutputStream();
BufferedOutputStream bfo=new BufferedOutputStream(output1);
output1.write(baos.toByteArray());