关于AES 256加密:
答案 0 :(得分:32)
在.Net中,您可以像这样创建密钥对:
public static Tuple<string, string> CreateKeyPair()
{
CspParameters cspParams = new CspParameters { ProviderType = 1 };
RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(1024, cspParams);
string publicKey = Convert.ToBase64String(rsaProvider.ExportCspBlob(false));
string privateKey = Convert.ToBase64String(rsaProvider.ExportCspBlob(true));
return new Tuple<string, string>(privateKey, publicKey);
}
然后,您可以使用公钥来加密消息,如下所示:
public static byte[] Encrypt(string publicKey, string data)
{
CspParameters cspParams = new CspParameters { ProviderType = 1 };
RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(cspParams);
rsaProvider.ImportCspBlob(Convert.FromBase64String(publicKey));
byte[] plainBytes = Encoding.UTF8.GetBytes(data);
byte[] encryptedBytes = rsaProvider.Encrypt(plainBytes, false);
return encryptedBytes;
}
并使用您的私钥解密,如下所示:
public static string Decrypt(string privateKey, byte[] encryptedBytes)
{
CspParameters cspParams = new CspParameters { ProviderType = 1 };
RSACryptoServiceProvider rsaProvider = new RSACryptoServiceProvider(cspParams);
rsaProvider.ImportCspBlob(Convert.FromBase64String(privateKey));
byte[] plainBytes = rsaProvider.Decrypt(encryptedBytes, false);
string plainText = Encoding.UTF8.GetString(plainBytes, 0, plainBytes.Length);
return plainText;
}
答案 1 :(得分:9)
我认为你正在混淆。 AES是对称密码,因此只有一个密钥用于加密和解密。像RSA这样的非对称密码有两个密钥。用于加密的公钥和用于解密的私钥。
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