C# 如何在C语言中生成Key和Key IV aes#

如何生成密钥和密钥IV，而不显式地写入它们

public sealed class MyCryptoClass
{
    protected RijndaelManaged myRijndael;

    private static string encryptionKey = "142eb4a7ab52dbfb971e18daed7056488446b4b2167cf61187f4bbc60fc9d96d";

    private static string initialisationVector ="26744a68b53dd87bb395584c00f7290a";

我尝试生成encryptionKey和initialisationVector

    protected static readonly MyCryptoClass _instance = new MyCryptoClass();
    public static MyCryptoClass Instance
    {
        get { return _instance; }
    }
        public string EncryptText(string plainText)
    {
        using (myRijndael = new RijndaelManaged())
        {

            myRijndael.Key = HexStringToByte(encryptionKey);
            myRijndael.IV = HexStringToByte(initialisationVector);
            myRijndael.Mode = CipherMode.CBC;
            myRijndael.Padding = PaddingMode.PKCS7;

            byte[] encrypted = EncryptStringToBytes(plainText, myRijndael.Key, myRijndael.IV);
            string encString = Convert.ToBase64String(encrypted);

            return encString;
        }
    }

---

让我们一步一步来保持简单

你需要两种方法来实现你的目标。我将从加密方法开始：

static byte[] Encrypt(string input, byte[] Key, byte[] IV)
{
    byte[] encryptedBytes;

    using (RijndaelManaged rijndael = new RijndaelManaged())
    {
        rijndael.Key = Key;
        rijndael.IV = IV;

        ICryptoTransform encryptor = rijndael.CreateEncryptor(rijndael.Key, rijndael.IV);

        using (var memoryStream = new MemoryStream())
        {
            using (var cryptoStream = new CryptoStream(memoryStream,
                    encryptor, CryptoStreamMode.Write))
            {
                using (var streamWriter = new StreamWriter(cryptoStream))
                {
                    streamWriter.Write(input);
                }
                encryptedBytes = memoryStream.ToArray();
            }
        }
    }
    return encryptedBytes;
}

接下来我们需要一种解密方法：

static string Decrypt(byte[] cipher, byte[] Key, byte[] IV)
{
    string plaintext = null;

    using (RijndaelManaged rijndael = new RijndaelManaged())
    {
        rijndael.Key = Key;
        rijndael.IV = IV;

        ICryptoTransform decryptor = rijndael.CreateDecryptor(rijndael.Key, rijndael.IV);

        using (var memoryStream = new MemoryStream(cipher))
        {
            using (var cryptoStream = new CryptoStream(memoryStream, decryptor, CryptoStreamMode.Read))
            {
                using (var streamReader = new StreamReader(cryptoStream))
                {
                    plaintext = streamReader.ReadToEnd();
                }
            }
        }

    }

    return plaintext;
}

注意：最好将

加密

和

解密

方法包装在一个类中，然后使用它们

您可以调用如下方法：

string original = "This is what would be encrypted!";

using (RijndaelManaged myRijndael = new RijndaelManaged())
{

    myRijndael.GenerateKey(); // this line generates key
    myRijndael.GenerateIV(); // this line generates initialization vektor

    // This line returns encrypted text
    byte[] encryptedBytes = Encrypt(original, myRijndael.Key, myRijndael.IV);

    // You can decrypt the encrypted text like so
    string decryptedString = Decrypt(encryptedBytes, myRijndael.Key, myRijndael.IV);
}

---

不清楚你的问题是什么。你不明确地写它们是什么意思？显式写入什么？而不是提供声明的密钥

private static string encryptionKey=“142EB4A7AB52DBFB971E18DAED7056488446B4B2167CF61187F4BC60FC9D96D”；私有静态字符串initialisationVector=“26744a68b53dd87bb395584c00f7290a”我想生成它们不想使用Rijndael算法的生成方法吗？在这里使用（RijndaelManaged rijAlg=new RijndaelManaged（））{rijAlg.key=key；rijAlg.IV=IV；ICryptTransform encryptor=rijAlg.CreateEncryptor（rijAlg.key，rijAlg.IV）生成密钥；

但我需要随机加密密钥和InitialisActionVector我是AES新手