blocks|key|1704827|text|更新03/03/2021|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1704828|.NET+5现在开箱即可支持这一点。|1704829|要尝试下面的代码片段，请在http://travistidwell.com/jsencrypt/demo/上生成密钥对并加密一些文本|offset|length|1704830|var+privateKey+=+@"-----BEGIN+RSA+PRIVATE+KEY-----
{+the+full+PEM+private+key+}+
-----END+RSA+PRIVATE+KEY-----";

var+rsa+=+RSA.Create();
rsa.ImportFromPem(privateKey.ToCharArray());

var+decryptedBytes+=+rsa.Decrypt(
++++Convert.FromBase64String("{+base64-encoded+encrypted+string+}"),+
++++RSAEncryptionPadding.Pkcs1
);

//+this+will+print+the+original+unencrypted+string
Console.WriteLine(Encoding.UTF8.GetString(decryptedBytes));|code-block|syntax|javascript|1704831|原始答案|1704832|我解决了，谢谢。如果任何人感兴趣，bouncycastle做了这个把戏，只是由于缺乏我这方面的知识和文档，所以花了我一些时间。代码如下：|1704833|var+bytesToDecrypt+=+Convert.FromBase64String("la0Cz.....D43g==");+//+string+to+decrypt,+base64+encoded
+
AsymmetricCipherKeyPair+keyPair;+
+
using+(var+reader+=+File.OpenText(@"c:\myprivatekey.pem"))+//+file+containing+RSA+PKCS1+private+key
++++keyPair+=+(AsymmetricCipherKeyPair)+new+PemReader(reader).ReadObject();+
+
var+decryptEngine+=+new+Pkcs1Encoding(new+RsaEngine());
decryptEngine.Init(false,+keyPair.Private);+
+
var+decrypted+=+Encoding.UTF8.GetString(decryptEngine.ProcessBlock(bytesToDecrypt,+0,+bytesToDecrypt.Length));+|1704834|entityMap|0|LINK|mutability|MUTABLE|url|http://travistidwell.com/jsencrypt/demo/|1|http://www.bouncycastle.org/^0|0|0|D|14|0|0|0|0|H|C|1|0|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|14|8|@]|9|@$F|15|G|16|1|17]]|A|$]]|$1|H|3|I|5|J|7|18|8|@]|9|@]|A|$K|L]]|$1|M|3|N|5|6|7|19|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1A|8|@]|9|@$F|1B|G|1C|1|1D]]|A|$]]|$1|Q|3|R|5|J|7|1E|8|@]|9|@]|A|$K|L]]|$1|S|3|-4|5|6|7|1F|8|@]|9|@]|A|$]]]|T|$U|$5|V|W|X|A|$Y|Z]]|10|$5|V|W|X|A|$Y|11]]]]

<h3>Update 03/03/2021</h3>
.NET 5 now supports this out of the box.
To try the code snippet below, generate a keypair and encrypt some text at <a href="http://travistidwell.com/jsencrypt/demo/" rel="noreferrer">http://travistidwell.com/jsencrypt/demo/</a>
<pre><code>var privateKey = @&quot;-----BEGIN RSA PRIVATE KEY-----
{ the full PEM private key } 
-----END RSA PRIVATE KEY-----&quot;;

var rsa = RSA.Create();
rsa.ImportFromPem(privateKey.ToCharArray());

var decryptedBytes = rsa.Decrypt(
 Convert.FromBase64String(&quot;{ base64-encoded encrypted string }&quot;), 
 RSAEncryptionPadding.Pkcs1
);

// this will print the original unencrypted string
Console.WriteLine(Encoding.UTF8.GetString(decryptedBytes));
</code></pre>
<h3>Original answer</h3>
I solved, thanks. In case anyone's interested, <a href="http://www.bouncycastle.org/" rel="noreferrer">bouncycastle</a> did the trick, just took me some time due to lack of knowledge from on my side and documentation. This is the code:
<pre><code>var bytesToDecrypt = Convert.FromBase64String(&quot;la0Cz.....D43g==&quot;); // string to decrypt, base64 encoded
 
AsymmetricCipherKeyPair keyPair; 
 
using (var reader = File.OpenText(@&quot;c:\myprivatekey.pem&quot;)) // file containing RSA PKCS1 private key
 keyPair = (AsymmetricCipherKeyPair) new PemReader(reader).ReadObject(); 
 
var decryptEngine = new Pkcs1Encoding(new RsaEngine());
decryptEngine.Init(false, keyPair.Private); 
 
var decrypted = Encoding.UTF8.GetString(decryptEngine.ProcessBlock(bytesToDecrypt, 0, bytesToDecrypt.Length)); 
</code></pre>

blocks|key|1704899|text|关于无需使用第三方代码(如BouncyCastle+)即可轻松导入RSA私钥的问题，我认为答案是“不，不能只使用私钥的PEM”。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1704900|但是，正如Simone上面提到的，您可以简单地将私钥(*.key)的PEM和使用该密钥的证书文件(*.crt)组合到一个*.pfx文件中，然后可以轻松地导入该文件。|1704901|要从命令行生成PFX文件：|1704902|openssl+pkcs12+-in+a.crt+-inkey+a.key+-export+-out+a.pfx|code-block|syntax|javascript|1704903|然后通常与.NET证书类一起使用，例如：|1704904|using+System.Security.Cryptography.X509Certificates;

X509Certificate2+combinedCertificate+=+new+X509Certificate2(@"C:\path\to\file.pfx");|1704905|现在，您可以按照MSDN中的示例通过RSACryptoServiceProvider进行加密和解密：|offset|length|1704906|我没有提到，对于解密，您需要使用PFX密码和可导出标志进行导入。(请参阅：BouncyCastle+RSAPrivateKey+to+.NET+RSAPrivateKey)|1704907|X509KeyStorageFlags+flags+=+X509KeyStorageFlags.Exportable;
X509Certificate2+cert+=+new+X509Certificate2("my.pfx",+"somepass",+flags);

RSACryptoServiceProvider+rsa+=+(RSACryptoServiceProvider)cert.PrivateKey;
RSAParameters+rsaParam+=+rsa.ExportParameters(true);+|1704908|entityMap|0|LINK|mutability|MUTABLE|url|http://msdn.microsoft.com/en-us/library/system.security.cryptography.x509certificates.x509certificate2.aspx|1|https://stackoverflow.com/questions/949727/bouncycastle-rsaprivatekey-to-net-rsaprivatekey^0|0|0|0|0|0|0|8|4|0|0|11|1C|1|0|0^^$0|@$1|2|3|4|5|6|7|16|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|17|8|@]|9|@]|A|$]]|$1|D|3|E|5|6|7|18|8|@]|9|@]|A|$]]|$1|F|3|G|5|H|7|19|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|1A|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|1B|8|@]|9|@]|A|$I|J]]|$1|O|3|P|5|6|7|1C|8|@]|9|@$Q|1D|R|1E|1|1F]]|A|$]]|$1|S|3|T|5|6|7|1G|8|@]|9|@$Q|1H|R|1I|1|1J]]|A|$]]|$1|U|3|V|5|H|7|1K|8|@]|9|@]|A|$I|J]]|$1|W|3|-4|5|6|7|1L|8|@]|9|@]|A|$]]]|X|$Y|$5|Z|10|11|A|$12|13]]|14|$5|Z|10|11|A|$12|15]]]]

With respect to easily importing the RSA private key, without using 3rd party code such as BouncyCastle, I think the answer is "No, not with a PEM of the private key alone."

However, as alluded to above by Simone, you can simply combine the PEM of the private key (*.key) and the certificate file using that key (*.crt) into a *.pfx file which can then be easily imported.

To generate the PFX file from the command line:

<pre><code>openssl pkcs12 -in a.crt -inkey a.key -export -out a.pfx
</code></pre>

Then use normally with the .NET certificate class such as:

<pre><code>using System.Security.Cryptography.X509Certificates;

X509Certificate2 combinedCertificate = new X509Certificate2(@"C:\path\to\file.pfx");
</code></pre>

Now you can follow the example from <a href="http://msdn.microsoft.com/en-us/library/system.security.cryptography.x509certificates.x509certificate2.aspx" rel="noreferrer">MSDN</a> for encrypting and decrypting via RSACryptoServiceProvider:

I left out that for decrypting you would need to import using the PFX password and the Exportable flag. (see: <a href="https://stackoverflow.com/questions/949727/bouncycastle-rsaprivatekey-to-net-rsaprivatekey">BouncyCastle RSAPrivateKey to .NET RSAPrivateKey</a>)

<pre><code>X509KeyStorageFlags flags = X509KeyStorageFlags.Exportable;
X509Certificate2 cert = new X509Certificate2("my.pfx", "somepass", flags);

RSACryptoServiceProvider rsa = (RSACryptoServiceProvider)cert.PrivateKey;
RSAParameters rsaParam = rsa.ExportParameters(true); 
</code></pre>

blocks|key|1489973|text|对于那些不想使用Bouncy，并且正在尝试其他答案中包含的一些代码的人，我发现代码在大多数情况下都可以工作，但遇到一些RSA私有字符串时会出错，比如我在下面包含的那个。通过查看弹性代码，我将wprl提供的代码调整为|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1489974|++++RSAparams.D+=+ConvertRSAParametersField(D,+MODULUS.Length);
++++RSAparams.DP+=+ConvertRSAParametersField(DP,+P.Length);
++++RSAparams.DQ+=+ConvertRSAParametersField(DQ,+Q.Length);
++++RSAparams.InverseQ+=+ConvertRSAParametersField(IQ,+Q.Length);

++++private+static+byte[]+ConvertRSAParametersField(byte[]+bs,+int+size)
++++{
++++++++if+(bs.Length+==+size)
++++++++++++return+bs;

++++++++if+(bs.Length+>+size)
++++++++++++throw+new+ArgumentException("Specified+size+too+small",+"size");

++++++++byte[]+padded+=+new+byte[size];
++++++++Array.Copy(bs,+0,+padded,+size+-+bs.Length,+bs.Length);
++++++++return+padded;
++++}

-----BEGIN+RSA+PRIVATE+KEY-----
MIIEoQIBAAKCAQEAxCgWAYJtfKBVa6Px1Blrj%2B3Wq7LVXDzx%2BMiQFrLCHnou2Fvb
fxuDeRmd6ERhDWnsY6dxxm981vTlXukvYKpIZQYpiSzL5pyUutoi3yh0%2B/dVlsHZ
UHheVGZjSMgUagUCLX1p/augXltAjgblUsj8GFBoKJBr3TMKuR5TwF7lBNYZlaiR
k9MDZTROk6MBGiHEgD5RaPKA/ot02j3CnSGbGNNubN2tyXXAgk8/wBmZ4avT0U4y
5oiO9iwCF/Hj9gK/S/8Q2lRsSppgUSsCioSg1CpdleYzIlCB0li1T0flB51zRIpg
JhWRfmK1uTLklU33xfzR8zO2kkfaXoPTHSdOGQIDAQABAoIBAAkhfzoSwttKRgT8
sgUYKdRJU0oqyO5s59aXf3LkX0%2BL4HexzvCGbK2hGPihi42poJdYSV4zUlxZ31N2
XKjjRFDE41S/Vmklthv8i3hX1G%2BQ09XGBZekAsAVrrQfRtP957FhD83/GeKf3MwV
Bhe/GKezwSV3k43NvRy2N1p9EFa%2Bi7eq1e5i7MyDxgKmja5YgADHb8izGLx8Smdd
%2Bv8EhWkFOcaPnQRj/LhSi30v/CjYh9MkxHMdi0pHMMCXleiUK0Du6tnsB8ewoHR3
oBzL4F5WKyNHPvesYplgTlpMiT0uUuN8%2B9Pq6qsdUiXs0wdFYbs693mUMekLQ4a%2B
1FOWvQECgYEA7R%2BuI1r4oP82sTCOCPqPi%2BfXMTIOGkN0x/1vyMXUVvTH5zbwPp9E
0lG6XmJ95alMRhjvFGMiCONQiSNOQ9Pec5TZfVn3M/w7QTMZ6QcWd6mjghc%2BdGGE
URmCx8xaJb847vACir7M08AhPEt%2Bs2C7ZokafPCoGe0qw/OD1fLt3NMCgYEA08WK
S%2BG7dbCvFMrBP8SlmrnK4f5CRE3pV4VGneWp/EqJgNnWwaBCvUTIegDlqS955yVp
q7nVpolAJCmlUVmwDt4gHJsWXSQLMXy3pwQ25vdnoPe97y3xXsi0KQqEuRjD1vmw
K7SXoQqQeSf4z74pFal4CP38U3pivvoE4MQmJeMCfyJFceWqQEUEneL%2BIYkqrZSK
7Y8urNse5MIC3yUlcose1cWVKyPh4RCEv2rk0U1gKqX29Jb9vO2L7RflAmrLNFuA
J%2B72EcRxsB68RAJqA9VHr1oeAejQL0%2BJYF2AK4dJG/FsvvFOokv4eNU%2BFBHY6Tzo
k%2Bt63NDidkvb5jIF6lsCgYEAlnQ08f5Y8Z9qdCosq8JpKYkwM%2BkxaVe1HUIJzqpZ
X24RTOL3aa8TW2afy9YRVGbvg6IX9jJcMSo30Llpw2cl5xo21Dv24ot2DF2gGN%2Bs
peFF1Z3Naj1Iy99p5/KaIusOUBAq8pImW/qmc/1LD0T56XLyXekcuK4ts6Lrjkit
FaMCgYAusOLTsRgKdgdDNI8nMQB9iSliwHAG1TqzB56S11pl%2Bfdv9Mkbo8vrx6g0
NM4DluCGNEqLZb3IkasXXdok9e8kmX1en1lb5GjyPbc/zFda6eZrwIqMX9Y68eNR
IWDUM3ckwpw3rcuFXjFfa%2Bw44JZVIsgdoGHiXAdrhtlG/i98Rw==
-----END+RSA+PRIVATE+KEY-----|code-block|syntax|javascript|1489975|entityMap^0|0|0^^$0|@$1|2|3|4|5|6|7|I|8|@]|9|@]|A|$]]|$1|B|3|C|5|D|7|J|8|@]|9|@]|A|$E|F]]|$1|G|3|-4|5|6|7|K|8|@]|9|@]|A|$]]]|H|$]]

For people who don't want to use Bouncy, and are trying some of the code included in other answers, I've found that the code works MOST of the time, but trips up on some RSA private strings, such as the one I've included below. By looking at the bouncy code, I tweaked the code provided by wprl to 

<pre><code> RSAparams.D = ConvertRSAParametersField(D, MODULUS.Length);
 RSAparams.DP = ConvertRSAParametersField(DP, P.Length);
 RSAparams.DQ = ConvertRSAParametersField(DQ, Q.Length);
 RSAparams.InverseQ = ConvertRSAParametersField(IQ, Q.Length);

 private static byte[] ConvertRSAParametersField(byte[] bs, int size)
 {
 if (bs.Length == size)
 return bs;

 if (bs.Length &gt; size)
 throw new ArgumentException("Specified size too small", "size");

 byte[] padded = new byte[size];
 Array.Copy(bs, 0, padded, size - bs.Length, bs.Length);
 return padded;
 }

-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
</code></pre>

blocks|key|1705060|text|我已经创建了PemUtils库，它就是这样做的。可以从NuGet安装GitHub上的代码|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|1705061|PM>+Install-Package+PemUtils|code-block|syntax|javascript|1705062|或者如果你只想要一个DER转换器：|1705063|PM>+Install-Package+DerConverter|1705064|从PEM数据读取RSA密钥的用法：|1705065|using+(var+stream+=+File.OpenRead(path))
using+(var+reader+=+new+PemReader(stream))
{
++++var+rsaParameters+=+reader.ReadRsaKey();
++++//+...
}|1705066|entityMap|0|LINK|mutability|MUTABLE|url|https://www.nuget.org/packages?q=pemutils|1|https://github.com/huysentruitw/pem-utils^0|R|5|0|Y|6|1|0|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|10|8|@]|9|@$A|11|B|12|1|13]|$A|14|B|15|1|16]]|C|$]]|$1|D|3|E|5|F|7|17|8|@]|9|@]|C|$G|H]]|$1|I|3|J|5|6|7|18|8|@]|9|@]|C|$]]|$1|K|3|L|5|F|7|19|8|@]|9|@]|C|$G|H]]|$1|M|3|N|5|6|7|1A|8|@]|9|@]|C|$]]|$1|O|3|P|5|F|7|1B|8|@]|9|@]|C|$G|H]]|$1|Q|3|-4|5|6|7|1C|8|@]|9|@]|C|$]]]|R|$S|$5|T|U|V|C|$W|X]]|Y|$5|T|U|V|C|$W|Z]]]]

I've created the PemUtils library that does exactly that. The code is available on <a href="https://github.com/huysentruitw/pem-utils" rel="nofollow noreferrer">GitHub</a> and can be installed from <a href="https://www.nuget.org/packages?q=pemutils" rel="nofollow noreferrer">NuGet</a>:

<pre><code>PM&gt; Install-Package PemUtils
</code></pre>

or if you only want a DER converter:

<pre><code>PM&gt; Install-Package DerConverter
</code></pre>

Usage for reading a RSA key from PEM data:

<pre><code>using (var stream = File.OpenRead(path))
using (var reader = new PemReader(stream))
{
 var rsaParameters = reader.ReadRsaKey();
 // ...
}
</code></pre>

blocks|key|1490098|text|我尝试过使用the+accepted+answer作为PEM编码的PKCS#8+RSA私钥，结果生成了带有malformed+sequence+in+RSA+private+key消息的PemException。原因是Org.BouncyCastle.OpenSsl.PemReader似乎只支持PKCS#1私钥。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1490099|我可以通过切换到Org.BouncyCastle.Utilities.IO.Pem.PemReader来获得私钥(注意类型名匹配！)像这样|1490100|private+static+RSAParameters+GetRsaParameters(string+rsaPrivateKey)
{
++++var+byteArray+=+Encoding.ASCII.GetBytes(rsaPrivateKey);
++++using+(var+ms+=+new+MemoryStream(byteArray))
++++{
++++++++using+(var+sr+=+new+StreamReader(ms))
++++++++{
++++++++++++var+pemReader+=+new+Org.BouncyCastle.Utilities.IO.Pem.PemReader(sr);
++++++++++++var+pem+=+pemReader.ReadPemObject();
++++++++++++var+privateKey+=+PrivateKeyFactory.CreateKey(pem.Content);

++++++++++++return+DotNetUtilities.ToRSAParameters(privateKey+as+RsaPrivateCrtKeyParameters);
++++++++}
++++}
}|code-block|syntax|javascript|1490101|entityMap|0|LINK|mutability|MUTABLE|url|https://stackoverflow.com/a/251757^0|1H|11|2L|C|31|Y|6|J|0|0|8|17|0|0^^$0|@$1|2|3|4|5|6|7|U|8|@$9|V|A|W|B|C]|$9|X|A|Y|B|C]|$9|Z|A|10|B|C]]|D|@$9|11|A|12|1|13]]|E|$]]|$1|F|3|G|5|6|7|14|8|@$9|15|A|16|B|C]]|D|@]|E|$]]|$1|H|3|I|5|J|7|17|8|@]|D|@]|E|$K|L]]|$1|M|3|-4|5|6|7|18|8|@]|D|@]|E|$]]]|N|$O|$5|P|Q|R|E|$S|T]]]]

I've tried <a href="https://stackoverflow.com/a/251757">the accepted answer</a> for PEM-encoded PKCS#8 RSA private key and it resulted in <code>PemException</code> with <code>malformed sequence in RSA private key</code> message. The reason is that <code>Org.BouncyCastle.OpenSsl.PemReader</code> seems to only support PKCS#1 private keys.

I was able to get the private key by switching to <code>Org.BouncyCastle.Utilities.IO.Pem.PemReader</code> (note that type names match!) like this

<pre><code>private static RSAParameters GetRsaParameters(string rsaPrivateKey)
{
 var byteArray = Encoding.ASCII.GetBytes(rsaPrivateKey);
 using (var ms = new MemoryStream(byteArray))
 {
 using (var sr = new StreamReader(ms))
 {
 var pemReader = new Org.BouncyCastle.Utilities.IO.Pem.PemReader(sr);
 var pem = pemReader.ReadPemObject();
 var privateKey = PrivateKeyFactory.CreateKey(pem.Content);

 return DotNetUtilities.ToRSAParameters(privateKey as RsaPrivateCrtKeyParameters);
 }
 }
}
</code></pre>

I've got an <code>RSA</code> private key in <code>PEM</code> format, is there a straight forward way to read that from .NET and instantiate an <code>RSACryptoServiceProvider</code> to decrypt data encrypted with the corresponding public key?

How to read a PEM RSA private key from .NET

我有一个PEM格式的RSA私钥，有没有一种直接的方法可以从.NET中读取它并实例化一个RSACryptoServiceProvider来解密用相应的公钥加密的数据？

问如何从.NET读取PEM RSA私钥
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