通过修改系统文件的命令代码，同时相应修改源程序的语句代码，达到对源程序加密的目的。
By modifying the commands code of system files and the statements code in source program files, the source program files Can be secreted.
本文沿用传统密码学的基本观念，对集中式计算机系统中的软件程序加密、解密实用技术进行了论述。
Based on the basic principles of traditional secret code theory, this paper analyses and discusses the practical technology keeping and undoing a program secret in the concentrative computer system.
该技术使用一个自动机来记录程序加密和解密的方法，并且使用瘦虚拟机来完成对加密过的程序解释执行。
This technology employed an automata to record encrypt and decrypt ways. Furthermore, the thin virtual machine was responsible for interpretation and execution of these encrypted programs.
将加密后的事件文本写到磁盘，然后运行解密程序，这将创建一个不加密的事件文本文件。
Writing the encrypted event text to disk and running the decrypt process will create a file with the unencrypted event text.
也许程序会检查密码以认证用户，或者对数据加密以将它隐藏等等。
Perhaps the program checks passwords to authenticate users, or encrypts data to keep it hidden, and so on.
清单5的代码表示将文本事件写到一个文件中并运行加密程序。
Code sections in Listing 5 demonstrated writing the text event to a file and running the encryption process.
这个包包含从前面的消息获取的 TGT和一个由客户机生成的用会话密匙加密的身份验证程序。
This packet includes the TGT obtained from the previous message and an authenticator generated by the client and encrypted with the session key.
处理程序可以处理加密和解密、日志记录和审计等。
Handlers can manage encryption and decryption, logging and auditing, and so on.
这是一项极佳的邮件加密程序，活干的很棒，对收发重要的商业邮件非常重要。
This is an awesome email encryption program that really works great and is especially useful for sending and receiving important business email.
在启用SSL时，每个信息包都将被加密，这样一来，需要在客户机和服务器之间来回进行很多传输的应用程序就需要进行很多加密。
When SSL is enabled, each packet of information is encrypted, so an application that requires many transmissions back and forth between client and server requires many encryptions.
例如，安全性日志记录程序可以在将日志写入目的地之前对消息进行加密。
For example, the security logger can encrypt a message before it is written to the destination.
并且为了生成鼠标单击次数的加密散列，您需要mkpasswd程序。
And for generating encrypted hashes of the mouse-click times, you'll need the mkpasswd program.
OpenSSH (OpenBSDSecureShell)是一组计算机程序，使用SSH协议通过网络提供加密通信会话。
OpenSSH (OpenBSD Secure Shell) is a set of computer programs providing encrypted communication sessions over a computer network using the SSH protocol.
编写您自己的程序，借助GoogleCalendarSOAPAPI提取、加密和存储以前和将来的日程表事件。
Write your own program using the Google calendar SOAP API's to extract, encrypt, and store every calendar event in the past and future.
tmp/CalendarCrypt.pl是一个Perl程序（将在后面介绍），它处理加密、解密和安全删除函数。
tmp/CalendarCrypt.pl is a Perl program described in a later section that handles the encryption, decryption, and secure delete functions.
关于Dropbox业已到位的安全程序或者他们如何实施加密以阻止对你的文件的未授权访问，根本没有更多的细节。
There really are no more details on what procedures Dropbox has in place or how they implement the crypto to prevent unauthorized access to your files.
现在将拦截、加密使用GoogleCalendarQuickAdd程序添加的事件，然后以加密的形式将其发布到Google服务器。
Each event added using the Google Calendar Quick add procedure will now be intercepted, encrypted, and posted to Google's servers in an encrypted form.
如果确定文档已加密，那么应用程序就可以使用新的安全api对其解密。
If it determines that the note is encrypted, then your application can make use of the new security APIs. One approach would be to use the following steps as a guideline.
对于某些应用程序，可以将数据加密作为安全性的一种附加措施。
For certain applications you may decide to encrypt data as an additional measure of security.
xml加密允许应用程序使用对预先约定的对称密钥的引用来加密部分或全部XML文档。
XML encryption allows applications to encrypt part or all of an XML document using references to pre-agreed symmetric keys.
本节总结了安全XML消息传递应用程序中签名、验证、加密和解密等全部概念。
This section concludes by putting together all the concepts of signature, verification, encryption, and decryption in secure XML messaging applications.
如果你对所有部署的程序包进行SHA哈希加密，那么就可以证实没有在自动部署过程之外做过任何的修改。
If you keep SHA hashes of all deployed packages, then it's possible to verify that nothing has changed outside of the automated deployment process.
由于所有应用程序数据通过对称密钥技术进行加密后才进行交换，因此没有提供不可否认特性。
There is no provision for non-repudiation as all application data that is exchanged has been encrypted using symmetric key technology.
很多应用程序平台都支持通过使用公钥加密相对容易地对消息进行加密、发送和解密。
Many application platforms allow the use of public key cryptography to encrypt, send, and decrypt messages with relative ease.
XKMS的这一部分为允许客户机应用程序认证经过加密/签名的数据提供机制。
This part of XKMS addresses the mechanism that allows client applications to authenticate encrypted/signed data.
所以，要求数据安全性的应用程序可能需要提供自己的加密工具。
So, applications requiring data security may need to provide their own encryption facilities.
名称空间登录的细节将会加密并存储于应用程序数据库。
Namespace login details will be encrypted and stored in the application database.
客户机通过将相应的密钥信息传递给服务提供程序来认证经过加密或签名的数据。
The client authenticates the encrypted/signed data by passing the corresponding key information to the service provider.
默认设置是允许所有V2和V3加密程序。
它的设计目的是，通过使用密钥加密技术，为客户端-服务器应用程序提供强大的身份验证和加密通信。
It is designed to provide strong authentication and encrypted communication for client-server applications by using secret-key cryptography.
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