解密使用黑莓的AES / CBC / PKCS5Padding数据

问题描述

我使用AES / CBC / PKCS5Padding AES加密和解密在Java密码实例
我怎样才能解密使用BlackBerry通过上述在java中加密的数据。

I am using AES/CBC/PKCS5Padding cipher instance for AES encryption and decryption in javaHow can I decrypt the data using blackberry encrypted by above in java.

与使用AES / CBC / PKCS5Padding解密黑莓数据

decrypting data with AES/CBC/PKCS5Padding using blackberry

谢谢
BAPI

ThanksBapi

推荐答案

我建议使用黑莓API（充气城堡的工作，但为什么事情复杂化？）。

I recommend using the BlackBerry API (Bouncy Castle will work, but why complicate things?).

使用的net.rim.crypto包 - 你正在使用的所有对称加密，所以你只需要标准的在设备上运行（$ 20 2-3天拿到） - 在此期间你可以用模拟器一切

Use the net.rim.crypto package - you're using all symmetric encryption so you'll only need the standard RIM signing keys to run on a device ($20 and 2-3 days to get) - in the meantime you can do everything with the simulator.

基本上，你要创建一个封装了CBCDecryptorEngine包装了一个AESDecryptorEngine一个PKCS5UnformatterEngine。在BlockDecryptor也许换一切，所以你可以把是在InputStream的。喜欢的东西（它已经有一会儿，因为我已经做到了这一点，所以它可能无法正常工作，写100％）：

Basically you'll want to create a PKCS5UnformatterEngine which wraps a CBCDecryptorEngine which wraps an AESDecryptorEngine. Probably wrap everything in a BlockDecryptor so you can treat is as in InputStream. Something like (and it's been a little while since I've done this, so it may not work 100% as written):

InputStream encryptedInput;  // if you have a byte[] of data, use a ByteArrayInputStream
AESKey key = new AESKey(<your key data as a byte[]>)
InitializationVector iv = new InitializationVector(<your iv data as a byte[]>) // of course you need to know your IV since you're doing CBC encryption

BlockDecryptor decryptor = new BlockDecryptor(
   new PKCS5UnformatterEngine(
      new CBCDecryptorEngine(
         new AESDecryptorEngine(key),
         iv
      )
   )
);

// then decryptor acts as an InputStream which gives you your decrypted, unpacked data

decryptor.read(buffer); // buffer will contain decrypted, unpacked data

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