using?System;
using?System.Collections.Generic;
using?System.Linq;
using?System.Text;
using?System.Security;
using?System.Security.Cryptography;
using?System.Security.Cryptography.Pkcs;
using?System.Security.Cryptography.X509Certificates;
using?System.IO;

namespace?P7Verify_CSharp
{
????class?PKCS7Tool
????{
????????public?static?byte[]?DecodeFromFile（string?inFileName）
????????{
????????????Frombase64Transform?myTransform?=?new?Frombase64Transform（Frombase64TransformMode.IgnoreWhiteSpaces）;

????????????byte[]?myOutputBytes?=?new?byte[myTransform.OutputBlockSize];

????????????//Open?the?input?and?output?files.
????????????FileStream?myInputFile?=?new?FileStream（inFileName?FileMode.Open?FileAccess.Read）;

????????????//Retrieve?the?file?contents?into?a?byte?array.
????????????byte[]?myInputBytes?=?new?byte[myInputFile.Length];
????????????myInputFile.Read（myInputBytes?0?myInputBytes.Length）;

????????????MemoryStream?outputDataStream?=?new?MemoryStream（myInputBytes.Length）;

????????????//Transform?the?data?in?chunks?the?size?of?InputBlockSize.
????????????int?i?=?0;
????????????int?inputBlockSize?=?4;
????????????while?（myInputBytes.Length?-?i?>?inputBlockSize）
????????????{
????????????????int?nOutput?=?myTransform.TransformBlock（myInputBytes?i?inputBlockSize?myOutputBytes?0）;
????????????????i?+=?inputBlockSize;
????????????????if?（nOutput?>?0）
????????????????{
????????????????????outputDataStream.Write（myOutputBytes?0?nOutput）;
????????????????}
????????????}

????????????//Transform?the?final?block?of?data.
????????????myOutputBytes?=?myTransform.TransformFinalBlock（myInputBytes?i?myInputBytes.Length?-?i）;
????????????outputDataStream.Write（myOutputBytes?0?myOutputBytes.Length）;

????????????//Free?up?any?used?resources.
????????????myTransform.Clear（）;

????????????myInputFile.Close（）;
????????????outputDataStream.Position?=?0;
????????????byte[]?outputData?=?new?byte[outputDataStream.Length];
????????????outputDataStream.Read（outputData?0?（int）outputDataStream.Length）;
????????????outputDataStream.Close（）;

????????????return?outputData;
????????}

????????public?static?Boolean?Verify（byte[]?sig?byte[]?msgstring?dn）
????????{
????????????Boolean?b?=?true;
????????????try
????????????{
????????????????ContentInfo?signedData?=?new?ContentInfo（msg）;
????????????????SignedCms?cms?=?new?SignedCms（signedData?true）;
????????????????cms.Decode（sig）;
????????????????//Check?Signature
????????????????cms.CheckSignature（true）;
????????????????//Check?dn
????????????????if?（cms.Certificates.Count?>?0?）
????????????????{
????????????????????X509Certificate2?cert?=?cms.Certificates[0];
????????????????????if?（!string.IsNullOrEmpty（dn）?&&?!dn.Equals（cert.Subject））
????????????????????{
????????????????????????b?=?false;
????????????????????}
????????????????}

????????????????byte[]?data?=?cms.Encode（）;
????????????}
????????????catch?（Exception?e）
????

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

????.......???????117??2012-05-15?11:08??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp\app.config

????.......??????2677??2012-05-15?11:08??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp\P7Verify_CSharp.csproj

????.......???????330??2012-05-15?11:08??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp\P7Verify_CSharp.csproj.user

????.......???????257??2012-05-15?11:08??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp\P7Verify_CSharp.csproj.vspscc

????.......??????5763??2012-05-15?11:08??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp\PKCS7Tool.cs

????.......??????3968??2012-05-15?11:08??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp\Program.cs

????.......??????1442??2012-05-15?11:08??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp\Properties\AssemblyInfo.cs

????.......??????1393??2012-05-15?11:08??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp.sln

????.......???????222??2012-05-15?11:08??網上支付接口.net語言開發示例\readme.txt

????.......??????1046??2012-05-15?11:08??網上支付接口.net語言開發示例\證書以及測試文件\BOC-CA.cer

????.......??????1900??2012-05-15?11:08??網上支付接口.net語言開發示例\證書以及測試文件\demo.pfx

????.......??????1308??2012-05-15?11:08??網上支付接口.net語言開發示例\證書以及測試文件\sign.txt

????.......??????1276??2012-05-15?11:08??網上支付接口.net語言開發示例\證書以及測試文件\signDotNet.txt

????.......????????34??2012-05-15?11:08??網上支付接口.net語言開發示例\證書以及測試文件\text.txt

?????目錄??????????0??2013-04-23?11:09??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp\Properties

?????目錄??????????0??2013-04-23?11:09??網上支付接口.net語言開發示例\P7Verify_CSharp\P7Verify_CSharp

?????目錄??????????0??2013-04-23?11:09??網上支付接口.net語言開發示例\P7Verify_CSharp

?????目錄??????????0??2013-04-23?11:09??網上支付接口.net語言開發示例\證書以及測試文件

?????目錄??????????0??2013-04-23?11:09??網上支付接口.net語言開發示例

????.......???1048064??2012-05-15?11:08??中行公鑰證書（電子支付二級根證書）下載指引.ppt

?????文件?????565760??2011-12-17?17:04??B2C商戶端接口說明（ver?2.3）.doc

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??????????????1635557????????????????????21