?? readme.txt
字號:
Unlimited Strength Java(TM) Cryptography Extension Policy Files for the Java(TM) 2 Platform, Standard Edition Development Kit, v5.0 README----------------------------------------------------------------------CONTENTS---------------------------------------------------------------------- o Introduction o Copyright o Understanding The Export/Import Issues o Where To Find Documentation o Installation o Questions, Support, Reporting Bugs, and Feedback----------------------------------------------------------------------Introduction----------------------------------------------------------------------Thank you for downloading the Unlimited Strength Java(TM) Cryptography Extension (JCE) Policy Files for the Java(TM) 2 Platform, Standard Edition Development Kit, v5.0.Due to import control restrictions, the version of JCE policy files that are bundled in the JDK(TM) 5.0 environment allow "strong" but limited cryptography to be used. This download bundle (the one including this README file) provides "unlimited strength" policy files which contain no restrictions on cryptographic strengths.Please note that this download file does NOT contain any encryption functionality since such functionality is supported in Sun's JDK 5.0.Thus, this installation applies only to Sun's JDK 5.0, and assumes that the JDK 5.0 is already installed.----------------------------------------------------------------------Copyright----------------------------------------------------------------------The copyright notice governing this product's use can be found inCOPYRIGHT.html. This file is normally found in the same directory as this README.txt file.----------------------------------------------------------------------Understanding The Export/Import Issues----------------------------------------------------------------------JCE for JDK 5.0 has been through the U.S. export review process.The JCE framework, along with the SunJCE provider that comes standard with it, is exportable.The JCE architecture allows flexible cryptographic strengthto be configured via jurisdiction policy files. Due to theimport restrictions of some countries, the jurisdiction policy files distributed with the JDK 5.0 software have built-in restrictions on available cryptographic strength. The jurisdiction policy files in this download bundle (the bundle including this README file) contain no restrictions on cryptographic strengths. This is appropriate for most countries. Framework vendors can create download bundles that include jurisdiction policy files that specify cryptographic restrictions appropriate for countries whose governments mandate restrictions. Users in those countries can download an appropriate bundle, and the JCE framework will enforce the specified restrictions.You are advised to consult your export/import control counsel or attorney to determine the exact requirements.----------------------------------------------------------------------Where To Find Documentation----------------------------------------------------------------------The following documents will be of interest to you: o The Java(TM) Cryptography Extension (JCE) Reference Guide at: http://java.sun.com/j2se/1.5.0/docs/guide/security/jce/JCERefGuide.html o The Java Security web site has more information about JCE, plus additional information about the Java 2 Security Model. Please see: http://java.sun.com/products/jce/ http://java.sun.com/security/----------------------------------------------------------------------Installation----------------------------------------------------------------------Notes: o Solaris and Win32 use different pathname separators, so please use the appropriate one ("\", "/") for your environment. o <java-home> refers to the directory where the J2SE Runtime Environment (JRE) was installed. It is determined based on whether you are running JCE on a JRE with or without the JDK installed. The JDK contains the JRE, but at a different level in the file hierarchy. For example, if the JDK is installed in /home/user1/jdk1.5.0 on Solaris or in C:\jdk1.5.0 on Win32, then <java-home> is /home/user1/jdk1.5.0/jre [Solaris] C:\jdk1.5.0\jre [Win32] If on the other hand the JRE is installed in /home/user1/jre1.5.0 on Solaris or in C:\jre1.5.0 on Win32, and the JDK is not installed, then <java-home> is /home/user1/jre1.5.0 [Solaris] C:\jre1.5.0 [Win32]Here are the installation instruction:1) Download the unlimited strength JCE policy files.2) Uncompress and extract the downloaded file. This will create a subdirectory called jce. This directory contains the following files: README.txt This file COPYRIGHT.html Copyright information local_policy.jar Unlimited strength local policy file US_export_policy.jar Unlimited strength US export policy file3) Install the unlimited strength policy JAR files. To utilize the encryption/decryption functionalities of the JCE framework without any limitation, first make a copy of the original JCE policy files (US_export_policy.jar and local_policy.jar in the standard place for JCE jurisdiction policy JAR files) in case you later decide to revert to these "strong" versions. Then replace the strong policy files with the unlimited strength versions extracted in the previous step. The standard place for JCE jurisdiction policy JAR files is: <java-home>/lib/security [Solaris] <java-home>\lib\security [Win32]-----------------------------------------------------------------------Questions, Support, Reporting Bugs, and Feedback-----------------------------------------------------------------------Questions---------For miscellaneous questions about JCE usage and deployment, weencourage you to read: o Information on the JCE web site http://java.sun.com/products/jce o The Java Security Q&A Archives http://archives.java.sun.com/archives/java-security.html o The Java Developer Connection(SM) forums. These discussion forums allow you to tap into the experience of other users, ask questions, or offer tips to others on a variety of Java-related topics including JCE. There is no fee to participate. http://forum.java.sun.com/ o Although not supported by Sun, an alternative for technical expertise may be found at: http://www.hotdispatch.com/sunSupport-------For more extensive JCE questions or deployment issues, Sun currentlyoffers several levels of developer support for the Java 2 platform: o Per-Incident o Developer Access Direct(SM) o Developer Access Plus(SM)For more information, please see http://www.sun.com/developer/support/Please be aware that we may be barred from offering technical supportspecifically regarding encryption implementations of the JCE APIs topeople outside the U.S. or Canada, according to U.S. regulations.Reporting Bugs--------------To report bugs with sample code or request a feature, please see: http://java.sun.com/cgi-bin/bugreport.cgiBug reports with test cases are highly appreciated!Feedback--------Please e-mail general comments about JCE to: java-security@sun.comThe above mailing list is not a subscription list or a supportmechanism. It is simply a one-way channel that you can use to send comments to the Java 2 Standard Edition security team. Please include the keyword "JAVASEC" in the Subject of your email so it can be distinguished from spam.Though we value your input, before sending your feedback please reviewour pages of Frequently Asked Questions, available from the JCE website: http://java.sun.com/products/jceand search the Java Security Q&A Archives: http://archives.java.sun.com/archives/java-security.htmlPlease note that due to the volume of messages we receive, wemay not be able to respond to every individual message.For other comments/suggestions concerning the web sites pleaseuse the feedback form at: http://java.sun.com/feedback/index.html
?? 快捷鍵說明
復(fù)制代碼
Ctrl + C
搜索代碼
Ctrl + F
全屏模式
F11
切換主題
Ctrl + Shift + D
顯示快捷鍵
?
增大字號
Ctrl + =
減小字號
Ctrl + -