initialization-vector

Good AES Initialization Vector practice

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per my question Aes Encryption... missing an important piece , I have now learned that my assumption for creating a reversible encryption on a string was a bit off. I now have public static byte[] EncryptString(string toEncrypt, byte[] encryptionKey) { var toEncryptBytes = Encoding.UTF8.GetBytes(toEncrypt); using (var provider = new AesCryptoServiceProvider()) { provider.Key = encryptionKey; provider.Mode = CipherMode.CBC; provider.Padding = PaddingMode.PKCS7; using (var encryptor = provider.CreateEncryptor(provider.Key, provider.IV)) { using (var ms = new MemoryStream()) { using (var cs = new

Encrypt & Decrypt using PyCrypto AES 256

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问题 I\'m trying to build two functions using PyCrypto that accept two parameters: the message and the key, and then encrypt/decrypt the message. I found several links on the web to help me out, but each one of them has flaws: This one at codekoala uses os.urandom, which is discouraged by PyCrypto. Moreover, the key I give to the function is not guaranteed to have the exact length expected. What can I do to make that happen ? Also, there are several modes, which one is recommended? I don\'t know

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