/// <summary>
/// 用私钥解密经加密后的Base64字符串
/// </summary>
/// <param name="base64Source"></param>
/// <param name="privateKey"></param>
/// <returns></returns>
public static string Decrypt(string base64Source, string privateKey)
{
var bs = Convert.FromBase64String(base64Source);
var rsa = new Rsa(privateKey);
var rst = rsa.Decrypt(bs);
return(Encoding.UTF8.GetString(rst));
}
/// <summary>
/// 用公钥加密字符串
/// </summary>
/// <param name="source">源有长度限制</param>
/// <param name="publicKey"></param>
/// <returns>返回加密后的Base64字符串</returns>
public static string Encrypt(string source, string publicKey)
{
var bs = Encoding.UTF8.GetBytes(source);
var rsa = new Rsa(publicKey);
var rst = rsa.Encrypt(bs);
return(Convert.ToBase64String(rst));
}
/// <summary>
/// 解密出原始Key
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
public static byte[] DeRsaKey(byte[] token)
{
var rsa = new Rsa(PrivateKey);
return rsa.Decrypt(token);
}
/// <summary>
/// 将Key用RSA加密
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public static byte[] RsaKey(byte[] key)
{
var rsa = new Rsa(PublicKey);
return rsa.Encrypt(key);
}
/// <summary>
/// 解密出原始Key
/// </summary>
/// <param name="token"></param>
/// <returns></returns>
public static byte[] DeRsaKey(byte[] token)
{
var rsa = new Rsa(PrivateKey);
return(rsa.Decrypt(token));
}
/// <summary>
/// 将Key用RSA加密
/// </summary>
/// <param name="key"></param>
/// <returns></returns>
public static byte[] RsaKey(byte[] key)
{
var rsa = new Rsa(PublicKey);
return(rsa.Encrypt(key));
}