using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.IO;
using?Org.BouncyCastle.Crypto.Parameters;
using?Org.BouncyCastle.Security;
using?System.Security.Cryptography;
using?System.Windows.Forms;

namespace?WindowsFormsApplication2
{
????public?partial?class?Form1?:?Form
????{
????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????}

????????private?void?button1_Click（object?sender?EventArgs?e）
????????{
????????????string?pkey?=?this.pkcs8PublicKey.Text.Trim（）;
????????????int?i1?=?0?i2?=?0;
????????????i1?=?pkey.IndexOf（“--“）;
????????????while?（i1?>=?0）
????????????{
????????????????i2?=?pkey.IndexOf（“\n“?i1）;
????????????????if?（i2?==?-1）?i2?=?pkey.Length?-?1;
????????????????if?（i1?????????????????{
????????????????????pkey?=?pkey.Substring（0?i1）?+?pkey.Substring（i2?+?1）;
????????????????}
????????????????i1?=?pkey.IndexOf（“--“）;
????????????}
????????????pkey?=?pkey.Replace（“\r“““）.Replace（“\n“““）;
????????????this.xmlPublicKey.Text?=?RSAConverter.RSAPublicKeyJava2DotNet（pkey）;
????????}

????????private?void?button2_Click（object?sender?EventArgs?e）
????????{
????????????string?pkey?=?this.pkcs8PrivateKey.Text.Trim（）;
????????????int?i1?=?0?i2?=?0;
????????????i1?=?pkey.IndexOf（“--“）;
????????????while?（i1?>=?0）
????????????{
????????????????i2?=?pkey.IndexOf（“\n“?i1）;
????????????????if?（i2?==?-1）?i2?=?pkey.Length?-?1;
????????????????if?（i1?????????????????{
????????????????????pkey?=?pkey.Substring（0?i1）?+?pkey.Substring（i2?+?1）;
????????????????}
????????????????i1?=?pkey.IndexOf（“--“）;
????????????}
????????????pkey?=?pkey.Replace（“\r“?““）.Replace（“\n“?““）;
????????????this.xmlPrivateKey.Text?=?RSAConverter.RSAPrivateKeyJava2DotNet（pkey）;
????????}
????}
????class?base64
????{
????????///?

????????///?base64編碼
????????///?

????????///?
????????///?
????????public?static?string?encode（byte[]?bytes）
????????{
????????????return?Convert.Tobase64String（bytes）;
????????}
????????///?

????????///?base64解碼
????????///?

????????///?
????????///?
????????public?static?byte[]?decode（string?str）
????????{
????????????return?Convert.Frombase64String（str）;
????????}
????????///?

????????///?中文轉(zhuǎn)碼
????????///?

????????///?
????????///?
????????public?static?string?GetChinese（byte[]?buffer）
????????{
????????????byte[]?buffer2?=?Encoding.Convert（Encoding.UTF8?Encoding.Default?buffer?0?buffer.Length）;
????????????string?strBuffer?=?Encoding.Default.GetString（buffer2?0?buffer2.Length）;
????????????return?strBuffer;
????????}
????}
????class?RSAConverter
????{

????????///?

????????///?RSA私鑰格式轉(zhuǎn)

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2017-10-18?11:37??WindowsFormsApplication2\
?????文件?????2236416??2017-08-08?13:20??WindowsFormsApplication2\BouncyCastle.Crypto.dll
?????文件????????7961??2017-10-18?11:27??WindowsFormsApplication2\Form1.Designer.cs
?????文件????????4873??2017-10-18?11:37??WindowsFormsApplication2\Form1.cs
?????文件????????5817??2017-10-18?11:27??WindowsFormsApplication2\Form1.resx
?????文件?????????505??2017-10-18?09:42??WindowsFormsApplication2\Program.cs
?????目錄???????????0??2017-10-18?09:42??WindowsFormsApplication2\Properties\
?????文件????????1356??2017-10-18?09:42??WindowsFormsApplication2\Properties\AssemblyInfo.cs
?????文件????????2861??2017-10-18?09:42??WindowsFormsApplication2\Properties\Resources.Designer.cs
?????文件????????5612??2017-10-18?09:42??WindowsFormsApplication2\Properties\Resources.resx
?????文件????????1111??2017-10-18?09:42??WindowsFormsApplication2\Properties\Settings.Designer.cs
?????文件?????????249??2017-10-18?09:42??WindowsFormsApplication2\Properties\Settings.settings
?????文件????????3881??2017-10-18?11:17??WindowsFormsApplication2\WindowsFormsApplication2.csproj
?????目錄???????????0??2017-10-18?09:42??WindowsFormsApplication2\bin\
?????目錄???????????0??2017-10-18?11:37??WindowsFormsApplication2\bin\Debug\
?????文件?????2236416??2017-08-08?13:20??WindowsFormsApplication2\bin\Debug\BouncyCastle.Crypto.dll
?????文件???????13312??2017-10-18?11:37??WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.exe
?????文件???????26112??2017-10-18?11:37??WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.pdb
?????文件???????22688??2017-10-18?11:37??WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.vshost.exe
?????文件?????????490??2013-06-18?20:28??WindowsFormsApplication2\bin\Debug\WindowsFormsApplication2.vshost.exe.manifest
?????目錄???????????0??2017-10-18?09:42??WindowsFormsApplication2\obj\
?????目錄???????????0??2017-10-18?11:37??WindowsFormsApplication2\obj\Debug\
?????文件?????????864??2017-10-18?09:42??WindowsFormsApplication2\obj\Debug\DesignTimeResolveAssemblyReferences.cache
?????文件????????7207??2017-10-18?11:06??WindowsFormsApplication2\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache
?????目錄???????????0??2017-10-18?11:38??WindowsFormsApplication2\obj\Debug\TempPE\
?????文件?????????180??2017-10-18?11:37??WindowsFormsApplication2\obj\Debug\WindowsFormsApplication2.Form1.resources
?????文件?????????180??2017-10-18?11:37??WindowsFormsApplication2\obj\Debug\WindowsFormsApplication2.Properties.Resources.resources
?????文件????????1268??2017-10-18?11:37??WindowsFormsApplication2\obj\Debug\WindowsFormsApplication2.csproj.FileListAbsolute.txt
?????文件????????1012??2017-10-18?11:37??WindowsFormsApplication2\obj\Debug\WindowsFormsApplication2.csproj.GenerateResource.Cache
?????文件???????13312??2017-10-18?11:37??WindowsFormsApplication2\obj\Debug\WindowsFormsApplication2.exe
?????文件???????26112??2017-10-18?11:37??WindowsFormsApplication2\obj\Debug\WindowsFormsApplication2.pdb
............此處省略1個文件信息