/// <summary>
/// RSA字符串加密
/// </summary>
/// <param name="source">源字符串 明文</param>
/// <param name="key">密匙</param>
/// <returns>加密遇到错误将会返回原字符串</returns>
public static string RsaEncrypt(string source, string keyFilePath)
{
byte[] en = Encoding.UTF8.GetBytes(source);
RSAParameters param = PemConverter.GetPemPublicKey(keyFilePath);
RSACryptoServiceProvider rsasp = new RSACryptoServiceProvider();
rsasp.ImportParameters(param);
byte[] encryptedData = rsasp.Encrypt(en, false);
return(Convert.ToBase64String(encryptedData));
}
/// <summary>
/// RSA字符串解密
/// </summary>
/// <param name="encryptString">密文</param>
/// <param name="key">密钥</param>
/// <returns>遇到解密失败将会返回原字符串</returns>
public static string RsaDecrypt(string encryptString, string keyFilePath)
{
byte[] de = Convert.FromBase64String(encryptString);
RSAParameters param = PemConverter.GetPemPrivateKey(keyFilePath);
RSACryptoServiceProvider rsa = new RSACryptoServiceProvider();
rsa.ImportParameters(param);
byte[] decryptedData = rsa.Decrypt(de, false);
return(Encoding.UTF8.GetString(decryptedData));
}