bouncycastle 提供程序找不到算法所需的类
我正在尝试使用 bouncycastle 使用公钥加密文件。 我已经以编程方式注册了提供程序:
Security.addProvider(new BouncyCastleProvider());
我成功创建了公钥对象。
当我使用 PGPEncryptedDataGenerator 和密钥加密文件时,我收到 ClassNotFound 异常。
看来提供者无法在运行时找到这个类,尽管我确信我有它的 jar...
我正在 tomcat 上运行我的应用程序。 使用 Maven 处理依赖关系 - 我放置的 bouncy castle jar 是 bcpg、bcprov、bcmail、bctsp。 我尝试使用 1.4 和 1.6 版本,但没有成功。 我在 eclipse 的 Maven 插件中使用了“依赖层次结构”,并在 pom 中排除了这些内容,以确保我的项目中没有多个版本的 bouncycastle。
这是堆栈跟踪:
org.bouncycastle.openpgp.PGPException: exception encrypting session key
at org.bouncycastle.openpgp.PGPEncryptedDataGenerator.open(Unknown Source)
at org.bouncycastle.openpgp.PGPEncryptedDataGenerator.open(Unknown Source)
.....(web application stack trace and uninteresting stuff).....
Caused by: java.security.NoSuchAlgorithmException: No such algorithm: ElGamal/ECB/PKCS1Padding
at javax.crypto.Cipher.getInstance(DashoA13*..)
at org.bouncycastle.openpgp.PGPEncryptedDataGenerator$PubMethod.addSessionInfo(Unknown Source)
... 42 more
Caused by: java.security.NoSuchAlgorithmException: class configured for Cipher(provider: BC)cannot be found.
at java.security.Provider$Service.getImplClass(Provider.java:1268)
at java.security.Provider$Service.newInstance(Provider.java:1220)
... 44 more
Caused by: java.lang.ClassNotFoundException: org.bouncycastle.jce.provider.JCEElGamalCipher$NoPadding
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
at java.security.Provider$Service.getImplClass(Provider.java:1262)
I'm trying to use bouncycastle to encrypt a file using a public key.
I've registered the provider programatically:
Security.addProvider(new BouncyCastleProvider());
I created the public key object successfully.
when i get to encrypting the file using a PGPEncryptedDataGenerator and the key I get a ClassNotFound exception.
It seems the provider can't find this class at runtime, though I know for sure I have its jar...
I'm running my app on tomcat.
Using maven to handle dependencies - the bouncy castle jars I put are bcpg, bcprov, bcmail, bctsp.
I tried using both the 1.4 and the 1.6 versions without success.
I used the "dependency hierarchy" in maven plugin for eclipse and exclusions in the pom to make sure that there are no multiple versions of bouncycastle in my project.
This is the stack trace:
org.bouncycastle.openpgp.PGPException: exception encrypting session key
at org.bouncycastle.openpgp.PGPEncryptedDataGenerator.open(Unknown Source)
at org.bouncycastle.openpgp.PGPEncryptedDataGenerator.open(Unknown Source)
.....(web application stack trace and uninteresting stuff).....
Caused by: java.security.NoSuchAlgorithmException: No such algorithm: ElGamal/ECB/PKCS1Padding
at javax.crypto.Cipher.getInstance(DashoA13*..)
at org.bouncycastle.openpgp.PGPEncryptedDataGenerator$PubMethod.addSessionInfo(Unknown Source)
... 42 more
Caused by: java.security.NoSuchAlgorithmException: class configured for Cipher(provider: BC)cannot be found.
at java.security.Provider$Service.getImplClass(Provider.java:1268)
at java.security.Provider$Service.newInstance(Provider.java:1220)
... 44 more
Caused by: java.lang.ClassNotFoundException: org.bouncycastle.jce.provider.JCEElGamalCipher$NoPadding
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1676)
at org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1521)
at java.security.Provider$Service.getImplClass(Provider.java:1262)
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您遇到 BouncyCastle 安全提供程序安装问题,您需要将
$JAVA_HOME/jre/lib/security/java.security
文件作为提供程序(请确保将其添加运行时使用的 JRE,例如,如果您安装了多个 JRE/JDK)。
(并重新编号其下方的安全提供程序 - 不要将其作为最高优先级的提供程序)。
$JAVA_HOME/jre/lib/security/java.policy
应该是“无限制”(您可能可以从 Java 主页下载无限制的策略文件)。You have a BouncyCastle Security provider installation problem, you need to either
$JAVA_HOME/jre/lib/security/java.security
file as a provider (be sure that you add it to the JRE you use when running, eg. if you have multiple JRE's/JDK's installed)eg.
(and renumber the security providers below it - don't put it as the highest priority provider).
$JAVA_HOME/jre/lib/security/java.policy
should be "unlimited" (you can probably download an unlimited policy file from the Java homepage).就我而言,它曾经工作得很好,但后来我在尝试使用 BC 时遇到了 ClassNotFoundException。我重新启动Tomcat,然后一切正常。
我认为如果您重新部署应用程序(就像开发时经常做的那样),它就会停止工作。 JNI 是另一个遭受这个问题困扰的东西。
在我们的例子中这不是问题。我们从不重新部署测试和生产系统。我更喜欢将 jar 与应用程序一起发送,而不是手动将其复制到容器 lib 目录。
In my case it worked fine one time, but then later I got ClassNotFoundException when trying to use BC. I restarted Tomcat and then it worked fine.
I think if you redeploy the app, like you do often while developing, it stops working. JNI is another thing which suffers from this problem.
In our case this isn't a problem. We never redeploy on the test and production systems. I prefer shipping the jar with the app instead of having to manually copy it to the container lib directory.
您需要在 lib 文件夹中添加 javapns.jar 和 bcprove-jdk15on-1.47.jar 文件
You need to add javapns.jar and bcprove-jdk15on-1.47.jar file in your lib folder