iPhone中的图像加密和解密算法？ [英] Encrypt and decrypt algorithm for image in iPhone?

问题描述

有没有任何算法加密/解密图像在iPhone的密码保护？

Is there any algorithm to encrypt/decrypt the image in iPhone with password protection?

推荐答案

有很多算法可通过OpenSSL，如AES和3DES。 OpenSSL不容易使用，但它是强大的。此外，还有很多教程。例如，这里是如何使用AES加密/解密的示例纯C。

There are a lot of algorithms available through OpenSSL, like AES and 3DES. OpenSSL isn't easy to use but it's mighty. Also, there are a lot of tutorials out there. For example, here's a sample on how to en/decrypt with AES in plain C.

然后是CommonCrypto库。查看问题 iPhone上的NSString的AES加密< a> ，您可能最感兴趣的部分是将NSData扩展为使用AES进行加密和解密的方法< a>。

And then there's the CommonCrypto library. See the question AES Encryption for an NSString on the iPhone, the part you're likely most interested in are methods that extend NSData for encryption and decryption with AES.

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