同系列文章：
- 国家商用密码（一）SM2椭圆曲线公钥密码算法
- 国家商用密码（二）C#：基于BouncyCastle实现SM3密码杂凑算法
- 国家商用密码（三）C#：从HashAlgorithm类派生实现SM3密码杂凑算法
- 国家商用密码（四）开放动态库及演示程序
- 国家商用密码（五）基于SM2的软件授权码生成及校验
- 国家商用密码（六）椭圆曲线加密算法密钥生成器
- 国家商用密码（七）在Apache MINA上实现二进制流的SM4编解码器
- 国家商用密码（八）在Apache MINA上实现文本流的SM4编解码器
- 国家商用密码（九）在Apache MINA上实现二进制流数据报文的SM4编解码器
- 国家商用密码（十）在Apache MINA上实现文本流数据报文的SM4编解码器
- 国家商用密码（11）在Netty 5.0.X上实现文本流的SM4编解码器
- 国家商用密码（12）在Netty 4.1.12.Final上实现文本流的SM4编解码器
- 国家商用密码（13）在DotNetty 0.4.5上实现文本流的SM4编解码器
程序下载
软件界面
开发环境：
Visual Studio V2015
.NET Framework 4 Client Profile
源代码：
MainWindow.xaml.cs
using System.Windows;
using Com.FirstSolver.Security;
namespace Splash
{
/// <summary>
/// MainWindow.xaml 的交互逻辑
/// </summary>
public partial class MainWindow : Window
{
public MainWindow()
{
InitializeComponent();
rbRecommend.IsChecked = true;
rbCustom.IsChecked = false;
}
private void buttonKeyMaker_Click(object sender, RoutedEventArgs e)
{ // 清除原有数据
textBoxPrivateKey.Clear();
textBoxPublicKeyX.Clear();
textBoxPublicKeyY.Clear();
// 生成新的密钥
BigInteger d; // 私密密钥
ECPoint Q; // 公开密钥
if (rbRecommend.IsChecked == true)
{ // 官方推荐曲线
int SelectedIndex = cbRecommend.SelectedIndex;
switch (SelectedIndex)
{
case 0:
using (SM2 sm2 = new SM2())
{
d = sm2.GetKeyPair(out Q);
textBoxPrivateKey.Text = Utils.ToString(sm2.GetEncoded(d));
textBoxPublicKeyX.Text = Utils.ToString(sm2.GetEncoded(Q.mX));
textBoxPublicKeyY.Text = Utils.ToString(sm2.GetEncoded(Q.mY));
}
break;
case 1:
using (SM2 sm2 = SM2.CreateInstance(192))
{
d = sm2.GetKeyPair(out Q);
textBoxPrivateKey.Text = Utils.ToString(sm2.GetEncoded(d));
textBoxPublicKeyX.Text = Utils.ToString(sm2.GetEncoded(Q.mX));
textBoxPublicKeyY.Text = Utils.ToString(sm2.GetEncoded(Q.mY));
}
break;
case 2:
using (SM2 sm2 = SM2.CreateInstance(224))
{
d = sm2.GetKeyPair(out Q);
textBoxPrivateKey.Text = Utils.ToString(sm2.GetEncoded(d));
textBoxPublicKeyX.Text = Utils.ToString(sm2.GetEncoded(Q.mX));
textBoxPublicKeyY.Text = Utils.ToString(sm2.GetEncoded(Q.mY));
}
break;
case 3:
using (SM2 sm2 = SM2.CreateInstance(256))
{
d = sm2.GetKeyPair(out Q);
textBoxPrivateKey.Text = Utils.ToString(sm2.GetEncoded(d));
textBoxPublicKeyX.Text = Utils.ToString(sm2.GetEncoded(Q.mX));
textBoxPublicKeyY.Text = Utils.ToString(sm2.GetEncoded(Q.mY));
}
break;
case 4:
using (SM2 sm2 = SM2.CreateInstance(384))
{
d = sm2.GetKeyPair(out Q);
textBoxPrivateKey.Text = Utils.ToString(sm2.GetEncoded(d));
textBoxPublicKeyX.Text = Utils.ToString(sm2.GetEncoded(Q.mX));
textBoxPublicKeyY.Text = Utils.ToString(sm2.GetEncoded(Q.mY));
}
break;
case 5:
using (SM2 sm2 = SM2.CreateInstance(521))
{
d = sm2.GetKeyPair(out Q);
textBoxPrivateKey.Text = Utils.ToString(sm2.GetEncoded(d));
textBoxPublicKeyX.Text = Utils.ToString(sm2.GetEncoded(Q.mX));
textBoxPublicKeyY.Text = Utils.ToString(sm2.GetEncoded(Q.mY));
}
break;
default:
return;
}
}
else
{ // 自定义曲线
try
{
using (SM2 sm2 = new SM2(textBoxECCurveP.Text, textBoxECCurveA.Text, textBoxECCurveB.Text, textBoxECCurveN.Text, textBoxECCurveGx.Text, textBoxECCurveGy.Text))
{
d = sm2.GetKeyPair(out Q);
textBoxPrivateKey.Text = Utils.ToString(sm2.GetEncoded(d));
textBoxPublicKeyX.Text = Utils.ToString(sm2.GetEncoded(Q.mX));
textBoxPublicKeyY.Text = Utils.ToString(sm2.GetEncoded(Q.mY));
}
}
catch(System.Exception)
{
MessageBoxPlus.Show(this, "椭圆曲线参数错误", "错误", MessageBoxButton.OK, MessageBoxImage.Error);
}
}
}
private void buttonCopyPrivateKey_Click(object sender, RoutedEventArgs e)
{
textBoxPrivateKey.SelectAll();
textBoxPrivateKey.Copy();
}
private void buttonCopyPublicKeyX_Click(object sender, RoutedEventArgs e)
{
textBoxPublicKeyX.SelectAll();
textBoxPublicKeyX.Copy();
}
private void buttonCopyPublicKeyY_Click(object sender, RoutedEventArgs e)
{
textBoxPublicKeyY.SelectAll();
textBoxPublicKeyY.Copy();
}
private void rbRecommend_Checked(object sender, RoutedEventArgs e)
{
rbCustom.IsChecked = false;
expanderECCurve.IsExpanded = false;
}
private void rbCustom_Checked(object sender, RoutedEventArgs e)
{
rbRecommend.IsChecked = false;
expanderECCurve.IsExpanded = true;
}
}
}
MainWindow.xaml
<Window
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
xmlns:local="clr-namespace:Splash"
xmlns:System="clr-namespace:System;assembly=mscorlib" x:Class="Splash.MainWindow"
mc:Ignorable="d"
Title="椭圆曲线加密算法密钥生成器" Height="480" Width="640" ResizeMode="CanMinimize" WindowStartupLocation="CenterScreen" SizeToContent="Height" Icon="FireEyes.ico" FontSize="16">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<GroupBox Grid.Row="0" Margin="8">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<StackPanel Grid.Row="0" Orientation="Horizontal">
<RadioButton x:Name="rbRecommend" Content="官方推荐曲线" Margin="8" VerticalContentAlignment="Center" Checked="rbRecommend_Checked" />
<ComboBox x:Name="cbRecommend" Margin="8" Padding="8" SelectedIndex="0" VerticalContentAlignment="Center" >
<System:String>国家密码管理局 P-256</System:String>
<System:String>美国国家标准与技术研究院 P-192</System:String>
<System:String>美国国家标准与技术研究院 P-224</System:String>
<System:String>美国国家标准与技术研究院 P-256</System:String>
<System:String>美国国家标准与技术研究院 P-384</System:String>
<System:String>美国国家标准与技术研究院 P-521</System:String>
</ComboBox>
</StackPanel>
<StackPanel Grid.Row="1" Orientation="Vertical">
<RadioButton Name="rbCustom" Content="自定义曲线" Margin="8" VerticalContentAlignment="Center" Checked="rbCustom_Checked" />
<Expander Name="expanderECCurve" Margin="8" Header="椭圆曲线参数设置（16进制字符串）">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Margin="4,8" Text="P" />
<TextBlock Grid.Row="1" Grid.Column="0" Margin="4,8" Text="A" />
<TextBlock Grid.Row="2" Grid.Column="0" Margin="4,8" Text="B" />
<TextBlock Grid.Row="3" Grid.Column="0" Margin="4,8" Text="N" />
<TextBlock Grid.Row="4" Grid.Column="0" Margin="4,8" Text="Gx" />
<TextBlock Grid.Row="5" Grid.Column="0" Margin="4,8" Text="Gy" />
<TextBox Name="textBoxECCurveP" Grid.Row="0" Grid.Column="1" Margin="4,8" TextWrapping="Wrap" />
<TextBox Name="textBoxECCurveA" Grid.Row="1" Grid.Column="1" Margin="4,8" TextWrapping="Wrap" />
<TextBox Name="textBoxECCurveB" Grid.Row="2" Grid.Column="1" Margin="4,8" TextWrapping="Wrap" />
<TextBox Name="textBoxECCurveN" Grid.Row="3" Grid.Column="1" Margin="4,8" TextWrapping="Wrap" />
<TextBox Name="textBoxECCurveGx" Grid.Row="4" Grid.Column="1" Margin="4,8" TextWrapping="Wrap" />
<TextBox Name="textBoxECCurveGy" Grid.Row="5" Grid.Column="1" Margin="4,8" TextWrapping="Wrap" />
</Grid>
</Expander>
</StackPanel>
</Grid>
</GroupBox>
<Button x:Name="buttonKeyMaker" Grid.Row="1" Margin="8" Width="100" Height="40" Content="生成密钥" Click="buttonKeyMaker_Click" />
<GroupBox Grid.Row="2" Margin="8">
<Grid>
<Grid.RowDefinitions>
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
<RowDefinition Height="Auto" />
</Grid.RowDefinitions>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition />
<ColumnDefinition Width="Auto" />
</Grid.ColumnDefinitions>
<TextBlock Grid.Row="0" Grid.Column="0" Margin="4,8" Text="私钥d：" />
<TextBlock Grid.Row="1" Grid.Column="0" Margin="4,8" Text="公钥P.X：" />
<TextBlock Grid.Row="2" Grid.Column="0" Margin="4,8" Text="公钥P.Y：" />
<TextBox x:Name="textBoxPrivateKey" Grid.Row="0" Grid.Column="1" Margin="4,8" IsReadOnly="True" TextWrapping="Wrap" />
<TextBox x:Name="textBoxPublicKeyX" Grid.Row="1" Grid.Column="1" Margin="4,8" IsReadOnly="True" TextWrapping="Wrap" />
<TextBox x:Name="textBoxPublicKeyY" Grid.Row="2" Grid.Column="1" Margin="4,8" IsReadOnly="True" TextWrapping="Wrap" />
<Button x:Name="buttonCopyPrivateKey" Grid.Row="0" Grid.Column="2" Margin="4,8" Padding="4,0" Content="复制" Click="buttonCopyPrivateKey_Click" />
<Button x:Name="buttonCopyPublicKeyX" Grid.Row="1" Grid.Column="2" Margin="4,8" Padding="4,0" Content="复制" Click="buttonCopyPublicKeyX_Click" />
<Button x:Name="buttonCopyPublicKeyY" Grid.Row="2" Grid.Column="2" Margin="4,8" Padding="4,0" Content="复制" Click="buttonCopyPublicKeyY_Click" />
</Grid>
</GroupBox>
</Grid>
</Window>