C# 问题 RSA密钥加密时报错

[a1100nn]

    RSAParameters priPara ;

                priPara = getPrivateKeyFromPem(priFileName);
                RSA = new RSACryptoServiceProvider();
                //RSA.FromXmlString(NET_PRIVATE_KEY);
                RSAParameters RSAParams = RSA.ExportParameters(false);
                RSACryptoServiceProvider RSA2 = new RSACryptoServiceProvider();
                RSA2.ImportParameters(priPara);

                byte[] data = Encoding.UTF8.GetBytes(dataToBeSigned);

                byte[] endata = RSA2.SignData(data, "SHA1");

                return Convert.ToBase64String(endata);

会在
RSA2.ImportParameters(priPara);
行时报错：抛出异常 不正确的数据

[暗尘掩月]

/// <summary>
    /// RSA加解密
    /// </summary>
    public class RSA
    {
        /// <summary>
        /// RSA加密
        /// </summary>
        /// <param name="xmlPublicKey">私钥</param>
        /// <param name="encryptString">需要加密的数据</param>
        /// <returns>RSA公钥加密后的数据</returns>
        public static string RSAEncrypt(string xmlPublicKey, string encryptString)
        {
            string result;
            try
            {
                RSACryptoServiceProvider.UseMachineKeyStore = true;
                RSACryptoServiceProvider provider = new RSACryptoServiceProvider();
                provider.FromXmlString(xmlPublicKey);
                byte[] bytes = new UnicodeEncoding().GetBytes(encryptString);
                result = Convert.ToBase64String(provider.Encrypt(bytes, false));
            }
            catch (Exception exception)
            {
                throw exception;
            }
            return result;
        }

        /// <summary>
        /// RSA解密
        /// </summary>
        /// <param name="xmlPrivateKey">公钥</param>
        /// <param name="decryptString">需要解密的数据</param>
        /// <returns>解密后的数据</returns>
        public static string RSADecrypt(string xmlPrivateKey, string decryptString)
        {
            string result;
            try
            {
                RSACryptoServiceProvider.UseMachineKeyStore = true;
                RSACryptoServiceProvider provider = new RSACryptoServiceProvider();
                provider.FromXmlString(xmlPrivateKey);
                byte[] rgb = Convert.FromBase64String(decryptString);
                byte[] buffer2 = provider.Decrypt(rgb, false);
                result = new UnicodeEncoding().GetString(buffer2);
            }
            catch (Exception exception)
            {
                throw exception;
            }
            return result;
        }

        /// <summary>
        /// 生成公钥、私钥
        /// </summary>
        /// <param name="PrivateKeyPath">私钥文件保存路径，包含文件名</param>
        /// <param name="PublicKeyPath">公钥文件保存路径，包含文件名</param>
        public static void CreateKey(out string privateKey, out string publicKey)
        {
            RSACryptoServiceProvider.UseMachineKeyStore = true;
            RSACryptoServiceProvider provider = new RSACryptoServiceProvider();
            privateKey = provider.ToXmlString(true);
            publicKey = provider.ToXmlString(false);
        }
    }

[save4me]

你用的是RSA加密（公钥加密，私钥解密）这个类吗？测试过用文章里介绍的openssl生成密钥，然后RSAUtil.signData签名，不会报错。可能是你的密钥文件有问题。