rsacryptoserviceprovider使用x509证书c＃ [英] rsacryptoserviceprovider using x509 certificates c#

问题描述

我使用由makecert生成的具有私钥和公钥的证书。
java端使用这个公钥加密数据，而.net解密它。

我试图解密Java的加密64位编码字符串，坏数据。

要查看是否所有都是好的在.net结束，我frist试图加密与公共密钥，然后使用相同的证书私人解密。我的代码如下所示。

  X509Certificate2 cert = GetCert（key，StoreName.My，StoreLocation.LocalMachine）; 
 RSACryptoServiceProvider provider =（RSACryptoServiceProvider）cert.PrivateKey; 
 
 RSACryptoServiceProvider publicprovider =（RSACryptoServiceProvider）cert.PublicKey.Key; 
 
 if（cert.HasPrivateKey）
 MessageBox.Show（Got private key）; 
 
 byte [] encrypted = publicprovider.Encrypt（Encoding.UTF8.GetBytes（text），false）; 
 byte [] decryptptedBytes = provider.Decrypt（encrypted，false）; 
  

即使在这里，我得到的错误。

解决方案

证书看起来对公钥和私钥都有效。 / div>

我终于找到了问题。我没有把钥匙makecert定义为RSA加密密钥。

i am using a certificate generated by makecert which has both private and public key. The java side uses this public key to encrypt the data and .net decrypts it back.

I am trying to decrypt Java's encrypted 64 bit encoded string and getting bad data.

To see if all is good on.Net end, I frist tried to encrypt with the public key and then decrypt with private using the same certificate. My code looks like this.

X509Certificate2 cert = GetCert(key, StoreName.My, StoreLocation.LocalMachine);
RSACryptoServiceProvider provider =  (RSACryptoServiceProvider)cert.PrivateKey;

RSACryptoServiceProvider publicprovider = (RSACryptoServiceProvider)cert.PublicKey.Key;

if (cert.HasPrivateKey)
    MessageBox.Show("Got private key");

byte[] encrypted = publicprovider.Encrypt(Encoding.UTF8.GetBytes(text), false);
byte[] decryptedBytes = provider.Decrypt(encrypted, false); 

Even here I am getting the error. Am i Missing something?

The certificate looks valid with both public and private key.

解决方案

I finally found the problem. I wasn't putting the key to makecert to define it as RSA Crypto key.

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