/*キーコンテナ削除*/
public static void DeleteKeys(string containerName)
{
//CspParametersオブジェクトの作成
System.Security.Cryptography.CspParameters cp =
new System.Security.Cryptography.CspParameters();
//キーコンテナ名を指定する
cp.KeyContainerName = containerName;
//CspParametersを指定してRSACryptoServiceProviderオブジェクトを作成
System.Security.Cryptography.RSACryptoServiceProvider rsa =
new System.Security.Cryptography.RSACryptoServiceProvider(cp);
//キーコンテナを削除
rsa.PersistKeyInCsp = false;
rsa.Clear();
}
/// <summary>
/// RSA加密
/// </summary>
/// <param name="byteArr_UTF8Content">加密内容</param>
/// <param name="publickey">公钥(可空)</param>
/// <returns>加密内容</returns>
public static byte[] Encrypt(byte[] byteArr_UTF8Content, string publickey = "")
{
if (publickey.IsNullOrEmpty())
{
publickey = sPublicKey;
}
System.Security.Cryptography.RSACryptoServiceProvider rsa = new System.Security.Cryptography.RSACryptoServiceProvider();
rsa.FromXmlString(publickey);
int keySize = rsa.KeySize / 8;
int bufferSize = keySize - 11;
byte[] buffer = new byte[bufferSize];
byte[] r = null;
using (System.IO.MemoryStream msInput = new System.IO.MemoryStream(byteArr_UTF8Content))
{
using (System.IO.MemoryStream msOutput = new System.IO.MemoryStream())
{
int readLen = msInput.Read(buffer, 0, bufferSize);
while (readLen > 0)
{
byte[] dataToEncrypt = new byte[readLen];
Array.Copy
(
sourceArray: buffer,
sourceIndex: 0,
destinationArray: dataToEncrypt,
destinationIndex: 0,
length: readLen
);
byte[] encrypted = rsa.Encrypt(rgb: dataToEncrypt, fOAEP: false);
msOutput.Write(encrypted, 0, encrypted.Length);
readLen = msInput.Read(buffer, 0, bufferSize);
}
r = msOutput.ToArray(); // 获得全部加密结果
rsa.Clear();
}
}
return(r);
}
