使用 Bouncy Castle 生成密钥对 [英] Generating keyPair using Bouncy Castle

问题描述

我有使用 BC 生成密钥对的 Java 代码，如下所示:

I have Java code for generating keypair using BC as follows:

KeyPairGenerator keyGen = KeyPairGenerator.getInstance("RSA");
keyGen.initialize(1024);
KeyPair key = keyGen.generateKeyPair();
PrivateKey priv = key.getPrivate();
PublicKey pub = key.getPublic();
String privateKey = new String(Base64.encode(priv.getEncoded(), 0,priv.getEncoded().length, Base64.NO_WRAP));
String publicKey1 = new String(Base64.encode(pub.getEncoded(), 0,pub.getEncoded().length, Base64.NO_WRAP));
String publicKey = new String(Base64.encode(publicKey1.getBytes(),0, publicKey1.getBytes().length, Base64.NO_WRAP));

现在我想在 C# 中使用 BC 做同样的事情.我已经通过 nuget 包管理器下载了 WP8BouncyCastle 库.我已经写成:

Now I want to do same in C# using BC. I have downloaded WP8BouncyCastle library via nuget package manager. I have written as:

var kpgen = new RsaKeyPairGenerator();

kpgen.Init(new KeyGenerationParameters(new SecureRandom(new CryptoApiRandomGenerator()), 1024));

var keyPair = kpgen.GenerateKeyPair();
AsymmetricKeyParameter privateKey = keyPair.Private;
AsymmetricKeyParameter publicKey = keyPair.Public;


string prvKey = Convert.ToBase64String(UTF8Encoding.UTF8.GetBytes(privateKey.ToString()));
string pubKey = Convert.ToBase64String(UTF8Encoding.UTF8.GetBytes(publicKey.ToString()));
string pubKey1 = Convert.ToBase64String(UTF8Encoding.UTF8.GetBytes(pubKey.ToString()));

但我需要 Java 中可用的 getEncoded() 方法，而 C# 中的 BC 库中没有该方法.这个 getEncoded() 方法用于将给定的密钥转换为 X.509 编码的密钥.在 Java 的情况下，公钥被转换两次(getencoded() 和 getBytes()) ，我不能在 C# 中做同样的事情.

But I need getEncoded() method available in Java which is not available in BC library in C#. This getEncoded() method is used to convert given key into X.509 encoded key.In case of Java, public key getting twice converted (getencoded() and getBytes()) ,I am not able to do same in C#.

有什么解决办法吗?

推荐答案

私钥使用如下代码:

PrivateKeyInfo pkInfo = PrivateKeyInfoFactory.CreatePrivateKeyInfo(keyPair.Private);
String privateKey = Convert.ToBase64String(pkInfo.GetDerEncoded());

并关注公众:

SubjectPublicKeyInfo info = SubjectPublicKeyInfoFactory.CreateSubjectPublicKeyInfo(keyPair.Public);
String publicKey = Convert.ToBase64String(info.GetDerEncoded());

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