form1.cs

RSACryptoServiceProvider机密方法的使用方法

using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.Security.Cryptography;
using System.IO;
using System.Text;

namespace WindowsApplication4
{
	/// <summary>
	/// Form1 的摘要说明。
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		private System.Windows.Forms.Button button1;
		private System.Windows.Forms.Button button2;
		/// <summary>
		/// 必需的设计器变量。
		/// </summary>
		private System.ComponentModel.Container components = null;

		public Form1()
		{
			//
			// Windows 窗体设计器支持所必需的
			//
			InitializeComponent();

			//
			// TODO: 在 InitializeComponent 调用后添加任何构造函数代码
			//
		}

		/// <summary>
		/// 清理所有正在使用的资源。
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows 窗体设计器生成的代码
		/// <summary>
		/// 设计器支持所需的方法 - 不要使用代码编辑器修改
		/// 此方法的内容。
		/// </summary>
		private void InitializeComponent()
		{
			this.button1 = new System.Windows.Forms.Button();
			this.button2 = new System.Windows.Forms.Button();
			this.SuspendLayout();
			// 
			// button1
			// 
			this.button1.Location = new System.Drawing.Point(40, 136);
			this.button1.Name = "button1";
			this.button1.TabIndex = 0;
			this.button1.Text = "生成";
			this.button1.Click += new System.EventHandler(this.button1_Click);
			// 
			// button2
			// 
			this.button2.Location = new System.Drawing.Point(136, 136);
			this.button2.Name = "button2";
			this.button2.TabIndex = 1;
			this.button2.Text = "验证";
			this.button2.Click += new System.EventHandler(this.button2_Click);
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(6, 14);
			this.ClientSize = new System.Drawing.Size(292, 273);
			this.Controls.Add(this.button2);
			this.Controls.Add(this.button1);
			this.Name = "Form1";
			this.Text = "Form1";
			this.ResumeLayout(false);

		}
		#endregion

		/// <summary>
		/// 应用程序的主入口点。
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		byte[] Hash = {59,4,248,102,77,97,142,201,210,12,224,93,25,41,100,197,213,134,130,135};

		byte[] SignedHash ;

		private void button1_Click(object sender, System.EventArgs e)
		{
			try
			{
				string path = @".\temp\PrivateKey.dat";
				RSAParameters gRSAKeyInfo = new RSAParameters();

				if (File.Exists(path)) 
				{
					// Open the stream and read it back.
					using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read)) 
					{
						byte[] bDInfo = new byte[128];
						byte[] bDPInfo = new byte[64];
						byte[] bDQInfo = new byte[64];
						byte[] bExponentinfo = new byte[3];
						byte[] bInverseQinfo = new byte[64];
						byte[] bModulusinfo = new byte[128];
						byte[] bPInfo = new byte[64];
						byte[] bQInfo = new byte[64];

						UnicodeEncoding temp = new UnicodeEncoding();

						BinaryReader r = new BinaryReader(fs);
						// Read data from PrivateKey.dat.
						for (int i =0 ; i < 128; i++) 
						{
							bDInfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bDPInfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bDQInfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 3; i++) 
						{
							bExponentinfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bInverseQinfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 128; i++) 
						{
							bModulusinfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bPInfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bQInfo[i] = r.ReadByte();
						}
						r.Close();						
						gRSAKeyInfo.D = bDInfo;
						gRSAKeyInfo.DP = bDPInfo;
						gRSAKeyInfo.DQ = bDQInfo;
						gRSAKeyInfo.Exponent = bExponentinfo;
						gRSAKeyInfo.InverseQ = bInverseQinfo;
						gRSAKeyInfo.Modulus = bModulusinfo;
						gRSAKeyInfo.P = bPInfo;
						gRSAKeyInfo.Q = bQInfo;					
					}
				}

				//Create a new instance of RSACryptoServiceProvider.
				RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();

				RSA.ImportParameters(gRSAKeyInfo);

				//The hash to sign.			

				//Create an RSAOPKCS1SignatureFormatter object and pass it the 
				//RSACryptoServiceProvider to transfer the key information.
				RSAPKCS1SignatureFormatter RSAFormatter = new RSAPKCS1SignatureFormatter(RSA);

				//Set the hash algorithm to SHA1.
				RSAFormatter.SetHashAlgorithm("SHA1");

				//Create a signature for HashValue and return it.
				SignedHash = RSAFormatter.CreateSignature(Hash);
			}
			catch(CryptographicException es)
			{
				MessageBox.Show(es.Message);
			}
		}

		private void button2_Click(object sender, System.EventArgs e)
		{
			try
			{
				string path = @".\temp\PrivateKey.dat";
				RSAParameters gRSAKeyInfo = new RSAParameters();

				if (File.Exists(path)) 
				{
					// Open the stream and read it back.
					using (FileStream fs = new FileStream(path, FileMode.Open, FileAccess.Read)) 
					{
						byte[] bDInfo = new byte[128];
						byte[] bDPInfo = new byte[64];
						byte[] bDQInfo = new byte[64];
						byte[] bExponentinfo = new byte[3];
						byte[] bInverseQinfo = new byte[64];
						byte[] bModulusinfo = new byte[128];
						byte[] bPInfo = new byte[64];
						byte[] bQInfo = new byte[64];

						UnicodeEncoding temp = new UnicodeEncoding();

						BinaryReader r = new BinaryReader(fs);
						// Read data from PrivateKey.dat.
						for (int i =0 ; i < 128; i++) 
						{
							bDInfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bDPInfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bDQInfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 3; i++) 
						{
							bExponentinfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bInverseQinfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 128; i++) 
						{
							bModulusinfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bPInfo[i] = r.ReadByte();
						}
						for (int i =0 ; i < 64; i++) 
						{
							bQInfo[i] = r.ReadByte();
						}
						r.Close();						
						gRSAKeyInfo.D = bDInfo;
						gRSAKeyInfo.DP = bDPInfo;
						gRSAKeyInfo.DQ = bDQInfo;
						gRSAKeyInfo.Exponent = bExponentinfo;
						gRSAKeyInfo.InverseQ = bInverseQinfo;
						gRSAKeyInfo.Modulus = bModulusinfo;
						gRSAKeyInfo.P = bPInfo;
						gRSAKeyInfo.Q = bQInfo;					
					}
				}	
				//Create a new instance of RSACryptoServiceProvider.
				RSACryptoServiceProvider RSA = new RSACryptoServiceProvider();	

				RSA.ImportParameters(gRSAKeyInfo);

				//Create an RSAPKCS1SignatureDeformatter object and pass it the 
				//RSACryptoServiceProvider to transfer the key information.
				RSAPKCS1SignatureDeformatter RSADeformatter = new RSAPKCS1SignatureDeformatter(RSA);

				RSADeformatter.SetHashAlgorithm("SHA1");

				//Verify the hash and display the results to the console.
				if(RSADeformatter.VerifySignature(Hash, SignedHash))
				{
					MessageBox.Show("The signature was verified.");
				}
				else
				{
					MessageBox.Show("The signature was not verified.");
				}

			}
			catch(CryptographicException es)
			{
				MessageBox.Show(es.Message);
			}
		}
	}
}