/*
?*?功??能:ECDSA簽名用于密碼技術
?*?
?*?用??法:將數據庫腳本復制到sqlserver新建查詢里執行，【加密】按鈕將輸入的密碼哈希生成簽名存入數據庫（包括公鑰），
?*???????【效驗】按鈕將公鑰以及簽名從數據庫中取出來，通過用簽名效驗用戶輸入的密碼哈希值是否正確
?*
?*?時??間:2010/3/29?15:10:30
?*
?*?程序員:王文壯
?*
?*?Q????Q:1020304029
?*
?*?郵??箱:WangWenzhuang_net@163.com
?*
?*?博??客:http://blog.csdn.net/wangwenzhuang
?*/
using?System;
using?System.Collections.Generic;
using?System.ComponentModel;
using?System.Data;
using?System.Drawing;
using?System.Linq;
using?System.Text;
using?System.Windows.Forms;
using?System.Data.SqlClient;
using?System.Security.Cryptography;

namespace?ECDSAEncryption
{
????public?partial?class?Form1?:?Form
????{
????????/*?數據庫腳本
???????????USE?MASTER
???????????GO
???????????IF?EXISTS（SELECT?*?FROM?SYSDATAbaseS?WHERE?NAME=‘TEMP_TEST‘）
	???????????BEGIN
		???????????DROP?DATAbase?TEMP_TEST
	???????????END
???????????GO
???????????CREATE?DATAbase?TEMP_TEST
???????????GO
???????????USE?TEMP_TEST
???????????GO
???????????IF?EXISTS（SELECT?*?FROM?SYSobjectS?WHERE?NAME=‘TEMP_USER‘）
	???????????BEGIN
		???????????DROP?TABLE?TEMP_USER?
	???????????END
???????????GO
???????????CREATE?TABLE?TEMP_USER
???????????（
	???????????PUBLICKEY?BINARY（140）?NOT?NULL			--公鑰
	???????????SIGNATURE?BINARY（132）?NOT?NULL			--簽名
???????????）
?????????*/
????????SqlConnection?con;

????????public?Form1（）
????????{
????????????InitializeComponent（）;
????????????con?=?new?SqlConnection（“Data?Source=.;Initial?Catalog=TEMP_TEST;Integrated?Security=True“）;
????????????con.Open（）;
????????}

????????private?void?buttonEncryption_Click（object?sender?EventArgs?e）
????????{
????????????///簽名
????????????byte[]?sign;
????????????///公鑰
????????????byte[]?pubKey;
????????????///哈希值
????????????byte[]?hash?=?new?MD5CryptoServiceProvider（）.ComputeHash（Encoding.UTF8.GetBytes（textBoxPasswordInit.Text））;
????????????///創建密鑰對
????????????using?（CngKey?key?=?CngKey.Create（CngAlgorithm.ECDsaP521））
????????????{
????????????????///從密鑰對中導出公鑰
????????????????pubKey?=?key.Export（CngKeyBlobFormat.GenericPublicBlob）;
????????????????ECDsaCng?eCDsaCng?=?new?ECDsaCng（key）;
????????????????///簽名
????????????????sign?=?eCDsaCng.SignHash（hash）;
????????????????eCDsaCng.Clear（）;
????????????}
????????????if?（Command（“INSERT?INTO?TEMP_USER（PUBLICKEYSIGNATURE）?VALUES（@PUBLICKEY@SIGNATURE）“?new?SqlParameter（“@PUBLICKEY“?pubKey）?new?SqlParameter（“@SIGNATURE“?sign））?>?0）
????????????{
????????????????MessageBox.Show（“存入數據庫!“）;
????????????}
????????}

????????private?void?buttonValidation_Click（object?sender?EventArgs?e）
????????{
????????????///簽名
????????????byte[]?sign?=?null;
????????????///公鑰
????????????byte[]?pubKey?=?null;
????????????///結果
????????????bool?result;
????????????///哈希值
????????????byte[]?hash?=?new?MD5CryptoServiceProvider（）.ComputeHash（Encoding.UTF8.GetBytes（textBoxPasswordLast.Text））;
????????????SqlCommand?cmd?=?new?SqlCommand（“SELECT?PUBLICKEYSIGNATURE?FROM?TEMP_USER“?con）;

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件??????11776??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\bin\Debug\ECDSAEncryption.exe

?????文件??????26112??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\bin\Debug\ECDSAEncryption.pdb

?????文件??????14328??2010-03-29?14:55??ECDSAEncryption\ECDSAEncryption\bin\Debug\ECDSAEncryption.vshost.exe

?????文件????????490??2009-06-11?05:14??ECDSAEncryption\ECDSAEncryption\bin\Debug\ECDSAEncryption.vshost.exe.manifest

?????文件???????3776??2010-03-29?14:24??ECDSAEncryption\ECDSAEncryption\ECDSAEncryption.csproj

?????文件???????4552??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\Form1.cs

?????文件???????5841??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\Form1.Designer.cs

?????文件???????5814??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\Form1.resx

?????文件????????668??2010-03-29?15:07??ECDSAEncryption\ECDSAEncryption\obj\Debug\ECDSAEncryption.csproj.FileListAbsolute.txt

?????文件????????847??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\obj\Debug\ECDSAEncryption.csproj.GenerateResource.Cache

?????文件??????11776??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\obj\Debug\ECDSAEncryption.exe

?????文件????????180??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\obj\Debug\ECDSAEncryption.Form1.resources

?????文件??????26112??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\obj\Debug\ECDSAEncryption.pdb

?????文件????????180??2010-03-29?14:24??ECDSAEncryption\ECDSAEncryption\obj\Debug\ECDSAEncryption.Properties.Resources.resources

?????文件????????496??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\Program.cs

?????文件???????1362??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\Properties\AssemblyInfo.cs

?????文件???????2880??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\Properties\Resources.Designer.cs

?????文件???????5612??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\Properties\Resources.resx

?????文件???????1100??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\Properties\Settings.Designer.cs

?????文件????????249??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\Properties\Settings.settings

?????文件????????935??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption.sln

????..A..H.?????14848??2010-03-29?15:25??ECDSAEncryption\ECDSAEncryption.suo

?????目錄??????????0??2010-03-29?14:16??ECDSAEncryption\ECDSAEncryption\obj\Debug\Refactor

?????目錄??????????0??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\obj\Debug\TempPE

?????目錄??????????0??2010-03-29?14:24??ECDSAEncryption\ECDSAEncryption\bin\Debug

?????目錄??????????0??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption\obj\Debug

?????目錄??????????0??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\bin

?????目錄??????????0??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\obj

?????目錄??????????0??2010-03-29?14:14??ECDSAEncryption\ECDSAEncryption\Properties

?????目錄??????????0??2010-03-29?15:18??ECDSAEncryption\ECDSAEncryption

............此處省略4個文件信息