blocks|key|2048897|text|奇怪的是，bouncycastle.org上可用的jars似乎不包含这个类。也许，您可能想要使用this+page+(link)中列出的位置中的一个。|type|unstyled|depth|inlineStyleRanges|entityRanges|offset|length|data|2048898|entityMap|0|LINK|mutability|MUTABLE|url|http://www.jarfinder.com/index.php/java/info/org.bouncycastle.asn1.DEREncodable^0|1C|G|0|0^^$0|@$1|2|3|4|5|6|7|L|8|@]|9|@$A|M|B|N|1|O]]|C|$]]|$1|D|3|-4|5|6|7|P|8|@]|9|@]|C|$]]]|E|$F|$5|G|H|I|C|$J|K]]]]

It's strange that the jars available at bouncycastle.org don't seem to contain this class. Perhaps, you may want to use one from the locations listed in <a href="http://www.jarfinder.com/index.php/java/info/org.bouncycastle.asn1.DEREncodable" rel="nofollow">this page (link)</a>.

blocks|key|2272698|text|BouncyCastle库正在经历重大的API更改，这些更改破坏了与iText等其他库的兼容性。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2272699|任一|2272700|2272701|使用以前版本的BouncyCastle库。旧版本可以在here上找到。但是，您必须找到与此特定版本的BC兼容的正确版本的iText。|unordered-list-item|offset|length|2272702|构建您自己的iText+(+SVN主干已经修复)。可以使用Maven构建iText+(在SVN的根目录下有一个简短的readme+file+)。请注意，这是您自己的风险，可能有bug在主干。|2272703|等待iText的下一个版本。根据我的经验，iText每隔几个月发布一次，有时更频繁，有时更少。但我不是iText提交者，所以我不能给你任何预计到达时间。|2272704|2272705|欲获知更多信息，请访问in+this+thread。|2272706|entityMap|0|LINK|mutability|MUTABLE|url|http://repo2.maven.org/maven2/org/bouncycastle/|1|http://itext.svn.sourceforge.net/viewvc/itext/trunk/itext/readme.txt?revision=4838&view=markup|2|http://sourceforge.net/mailarchive/message.php?msg_id=29107259^0|0|0|0|R|4|0|0|1M|B|1|0|0|0|B|E|2|0^^$0|@$1|2|3|4|5|6|7|12|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|13|8|@]|9|@]|A|$]]|$1|D|3|-4|5|6|7|14|8|@]|9|@]|A|$]]|$1|E|3|F|5|G|7|15|8|@]|9|@$H|16|I|17|1|18]]|A|$]]|$1|J|3|K|5|G|7|19|8|@]|9|@$H|1A|I|1B|1|1C]]|A|$]]|$1|L|3|M|5|G|7|1D|8|@]|9|@]|A|$]]|$1|N|3|-4|5|6|7|1E|8|@]|9|@]|A|$]]|$1|O|3|P|5|6|7|1F|8|@]|9|@$H|1G|I|1H|1|1I]]|A|$]]|$1|Q|3|-4|5|6|7|1J|8|@]|9|@]|A|$]]]|R|$S|$5|T|U|V|A|$W|X]]|Y|$5|T|U|V|A|$W|Z]]|10|$5|T|U|V|A|$W|11]]]]

BouncyCastle libs are undergoing heavy API changes that broke the compatibility with other libs like iText.

Either

<ul>
<li>use a previous version of BouncyCastle libs. Old versions can be found <a href="http://repo2.maven.org/maven2/org/bouncycastle/" rel="noreferrer">here</a>. However, you'll have to find the right version of iText that was compatible with this particular version of BC.</li>
<li>make your own build of iText (the SVN trunk has been fixed). iText can be build with Maven (there's a short <a href="http://itext.svn.sourceforge.net/viewvc/itext/trunk/itext/readme.txt?revision=4838&amp;view=markup" rel="noreferrer">readme file</a> at the root of the SVN). Please note that it's at your own risk, there may be bugs in trunk. </li>
<li>wait for the next version of iText. From my experience, iText releases come every couple of months, sometime more often, sometimes less. I'm not an iText committer though, so I can't give you any ETA.</li>
</ul>

More information can be found <a href="http://sourceforge.net/mailarchive/message.php?msg_id=29107259" rel="noreferrer">in this thread</a>

blocks|key|2276770|text|我也有同样的问题，但是当我下载这个库并更新/WEBINF/LIB上的那些文件时，我可以解决这个问题|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2276771|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

i have the same problem, but a fix it when i download the libreria and update those files on /WEBINF/LIB

blocks|key|1257888|text|iText将bouncycastle依赖项标记为可选。如果您需要它们，您需要在自己的pom文件中添加依赖项。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1257889|要找出在您的项目中包含哪个依赖项，请打开您正在使用的版本(例如5.3.2，here)的itextpdf+pom.xml文件，并搜索2个bouncycastle依赖项。|offset|length|1257890|++++<dependency>
++++++++<groupId>org.bouncycastle</groupId>
++++++++<artifactId>bcprov-jdk15on</artifactId>
++++++++<version>1.47</version>
++++++++<optional>true</optional>
++++</dependency>
++++<dependency>
++++++++<groupId>org.bouncycastle</groupId>
++++++++<artifactId>bcmail-jdk15on</artifactId>
++++++++<version>1.47</version>
++++++++<optional>true</optional>
++++</dependency>|code-block|syntax|javascript|1257891|将它们复制到您的pom文件中，并删除可选选项。|1257892|++++<dependency>
++++++++<groupId>com.itextpdf</groupId>
++++++++<artifactId>itextpdf</artifactId>
++++++++<version>5.3.2</version>
++++</dependency>
++++<dependency>
++++++++<groupId>org.bouncycastle</groupId>
++++++++<artifactId>bcprov-jdk15on</artifactId>
++++++++<version>1.47</version>
++++</dependency>
++++<dependency>
++++++++<groupId>org.bouncycastle</groupId>
++++++++<artifactId>bcmail-jdk15on</artifactId>
++++++++<version>1.47</version>
++++</dependency>|1257893|entityMap|0|LINK|mutability|MUTABLE|url|http://central.maven.org/maven2/com/itextpdf/itextpdf/5.3.2/itextpdf-5.3.2.pom^0|0|11|4|0|0|0|0|0^^$0|@$1|2|3|4|5|6|7|W|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|X|8|@]|9|@$D|Y|E|Z|1|10]]|A|$]]|$1|F|3|G|5|H|7|11|8|@]|9|@]|A|$I|J]]|$1|K|3|L|5|6|7|12|8|@]|9|@]|A|$]]|$1|M|3|N|5|H|7|13|8|@]|9|@]|A|$I|J]]|$1|O|3|-4|5|6|7|14|8|@]|9|@]|A|$]]]|P|$Q|$5|R|S|T|A|$U|V]]]]

iText marks bouncycastle dependencies as optional. If you require them, you need to add the dependencies in your own pom file.

To find out which dependency to include in your project, open the itextpdf pom.xml file of the version you are using (for example 5.3.2, <a href="http://central.maven.org/maven2/com/itextpdf/itextpdf/5.3.2/itextpdf-5.3.2.pom" rel="nofollow noreferrer">here</a>) and search for the 2 bouncycastle dependencies. 

<pre><code> &lt;dependency&gt;
 &lt;groupId&gt;org.bouncycastle&lt;/groupId&gt;
 &lt;artifactId&gt;bcprov-jdk15on&lt;/artifactId&gt;
 &lt;version&gt;1.47&lt;/version&gt;
 &lt;optional&gt;true&lt;/optional&gt;
 &lt;/dependency&gt;
 &lt;dependency&gt;
 &lt;groupId&gt;org.bouncycastle&lt;/groupId&gt;
 &lt;artifactId&gt;bcmail-jdk15on&lt;/artifactId&gt;
 &lt;version&gt;1.47&lt;/version&gt;
 &lt;optional&gt;true&lt;/optional&gt;
 &lt;/dependency&gt;
</code></pre>

Copy them into your pom file and remove the optional option. 

<pre><code> &lt;dependency&gt;
 &lt;groupId&gt;com.itextpdf&lt;/groupId&gt;
 &lt;artifactId&gt;itextpdf&lt;/artifactId&gt;
 &lt;version&gt;5.3.2&lt;/version&gt;
 &lt;/dependency&gt;
 &lt;dependency&gt;
 &lt;groupId&gt;org.bouncycastle&lt;/groupId&gt;
 &lt;artifactId&gt;bcprov-jdk15on&lt;/artifactId&gt;
 &lt;version&gt;1.47&lt;/version&gt;
 &lt;/dependency&gt;
 &lt;dependency&gt;
 &lt;groupId&gt;org.bouncycastle&lt;/groupId&gt;
 &lt;artifactId&gt;bcmail-jdk15on&lt;/artifactId&gt;
 &lt;version&gt;1.47&lt;/version&gt;
 &lt;/dependency&gt;
</code></pre>

blocks|key|2049010|text|幸运的是，依赖jars现在与iText一起交付。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|2049011|请检查下面的存储库链接并下载extrajars.zip文件|offset|length|style|BOLD|2049012|http://sourceforge.net/projects/itext/files/|2049013|entityMap|0|LINK|mutability|MUTABLE|url^0|0|E|D|0|0|18|0|0^^$0|@$1|2|3|4|5|6|7|Q|8|@]|9|@]|A|$]]|$1|B|3|C|5|6|7|R|8|@$D|S|E|T|F|G]]|9|@]|A|$]]|$1|H|3|I|5|6|7|U|8|@]|9|@$D|V|E|W|1|X]]|A|$]]|$1|J|3|-4|5|6|7|Y|8|@]|9|@]|A|$]]]|K|$L|$5|M|N|O|A|$P|I]]]]

Luckily, the dependency jars are being delivered along with the iText now.

Please check the repository link below and download extrajars.zip file

<a href="http://sourceforge.net/projects/itext/files/" rel="nofollow">http://sourceforge.net/projects/itext/files/</a>

blocks|key|410646|text|从bcprov-jdk15on-147版本开始，org.bouncycastle.asn1路径下不再存在DEREncodable类。您可以使用146+(含146)之前的版本来解决此问题。|type|unstyled|depth|inlineStyleRanges|entityRanges|data|410647|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

from version of bcprov-jdk15on-147, class of DEREncodable is no longer exist under the path of org.bouncycastle.asn1. You can use version before 146 (including 146) to resolve this question.

blocks|key|1259082|text|在itextpdf版本5.5.4中，org.bouncycastle依赖项被标记为<optional>true</optional>。这意味着您必须在自己的pom中包含这些依赖项，否则可能会遇到classnotfound异常。|type|unstyled|depth|inlineStyleRanges|offset|length|style|CODE|entityRanges|data|1259083|<dependency>
++++<groupId>com.itextpdf</groupId>
++++<artifactId>itextpdf</artifactId>
++++<version>5.5.4</version>
</dependency>


<dependency>
++++<groupId>org.bouncycastle</groupId>
++++<artifactId>bcprov-jdk15on</artifactId>
++++<version>1.49</version>
</dependency>
<dependency>
++++<groupId>org.bouncycastle</groupId>
++++<artifactId>bcpkix-jdk15on</artifactId>
++++<version>1.49</version>
</dependency>|code-block|syntax|javascript|1259084|entityMap^0|15|P|0|0^^$0|@$1|2|3|4|5|6|7|M|8|@$9|N|A|O|B|C]]|D|@]|E|$]]|$1|F|3|G|5|H|7|P|8|@]|D|@]|E|$I|J]]|$1|K|3|-4|5|6|7|Q|8|@]|D|@]|E|$]]]|L|$]]

With itextpdf version 5.5.4 org.bouncycastle dependencies are marked as <code>&lt;optional&gt;true&lt;/optional&gt;</code>. This means you MUST include those dependencies in your own pom, or you can run into classnotfound exceptions.

<pre><code>&lt;dependency&gt;
 &lt;groupId&gt;com.itextpdf&lt;/groupId&gt;
 &lt;artifactId&gt;itextpdf&lt;/artifactId&gt;
 &lt;version&gt;5.5.4&lt;/version&gt;
&lt;/dependency&gt;

&lt;!-- Bouncycastle dependencies necessary as they are optional = true
 in itextpdf ... but they're not-so-optional in reality --&gt;
&lt;dependency&gt;
 &lt;groupId&gt;org.bouncycastle&lt;/groupId&gt;
 &lt;artifactId&gt;bcprov-jdk15on&lt;/artifactId&gt;
 &lt;version&gt;1.49&lt;/version&gt;
&lt;/dependency&gt;
&lt;dependency&gt;
 &lt;groupId&gt;org.bouncycastle&lt;/groupId&gt;
 &lt;artifactId&gt;bcpkix-jdk15on&lt;/artifactId&gt;
 &lt;version&gt;1.49&lt;/version&gt;
&lt;/dependency&gt;
</code></pre>

blocks|key|1259099|text|对于有同样失败的jruby-ers，我从jruby-complete-1.6.6.jar更新到jruby-complete-9.1.13.0.jar，问题似乎在resolve...FWIW...|type|unstyled|depth|inlineStyleRanges|entityRanges|data|1259100|entityMap^0|0^^$0|@$1|2|3|4|5|6|7|D|8|@]|9|@]|A|$]]|$1|B|3|-4|5|6|7|E|8|@]|9|@]|A|$]]]|C|$]]

For jruby-ers with the same failure, I updated to jruby-complete-9.1.13.0.jar from jruby-complete-1.6.6.jar and the problem seemed to resolve...FWIW...

I'm trying to use <a href="http://itextpdf.com/" rel="noreferrer">iText</a> Java.
When you run the example "<a href="http://itextpdf.sourceforge.net/howtosign.html#howtosign" rel="noreferrer">how to sign</a>" the following error occurs:

<pre><code>Caused by: java.lang.ClassNotFoundException: org.bouncycastle.tsp.TimeStampTokenInfo
</code></pre>

According <a href="http://cfsearching.blogspot.com.br/2007/12/getting-started-with-itext-how-to-sign.html" rel="noreferrer">"Getting Started with iText - How to sign a PDF using iText"</a>, I have to use the <a href="http://www.bouncycastle.org/latest_releases.html" rel="noreferrer">BouncyCastle</a>.

I downloaded the file: bcprov-jdk15on-147.jar from <a href="http://www.bouncycastle.org/latest_releases.html" rel="noreferrer">BouncyCastle download page.</a> 
And added to the project: Java Build Path/Libraries/Add External JARs...

I added the following line: 

<pre><code>Security.addProvider(new BouncyCastleProvider());
</code></pre>

When you run the example the same error occurs. 
So I downloaded another file: bcpkix-jdk15on-147.jar entitled "PKIX/CMS/EAC/PKCS/OCSP/TSP/OPENSSL" 
And added to the project: Java Build Path/Libraries/Add External JARs... 
Now I have two Jars.

When you run the example the following error occurs:

<pre><code>Caused by: java.lang.ClassNotFoundException: org.bouncycastle.asn1.DEREncodable
</code></pre>

I tried downloading the file "bcprov-ext-jdk15on-147.jar" but did not solve the problem.

I am using iText 5.2.1 and eclipse on Windows 7 64 bits.

iText/BouncyCastle ClassNotFound org.bouncycastle.asn1.DEREncodable and org.bouncycastle.tsp.TimeStampTokenInfo

翻译质量差，导致语言生硬或混乱。

没有提供实际的解决方法或示例。

解答不清晰，无法理解或解决问题。

页面排版不美观，阅读体验差。

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我正在尝试使用 Java。当您运行示例"“时，出现以下错误：Caused by: java.lang.ClassNotFoundException: org.bouncycastle.tsp.TimeStampTokenInfo根据的说法，我必须使用。我从下载了这个文件: bcprov-jdk15on-147.jar并...

问iText/BouncyCastle ClassNotFound org.bouncycastle.asn1.DER可编码和org.bouncycastle.tsp.TimeStampTokenInfo
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问iText/BouncyCastle ClassNotFound org.bouncycastle.asn1.DER可编码和org.bouncycastle.tsp.TimeStampTokenInfoEN