bouncycastle提供程序找不到算法所需的类 [英] bouncycastle provider can't find classes needed for algorithm

问题描述

我正在尝试使用bouncycastle通过公用密钥对文件进行加密。
我已经通过编程方式注册了提供程序：

I'm trying to use bouncycastle to encrypt a file using a public key. I've registered the provider programatically:

Security.addProvider(new BouncyCastleProvider());

我成功创建了公钥对象。

I created the public key object successfully.

当我使用PGPEncryptedDataGenerator和密钥对文件进行加密时，我得到ClassNotFound异常。

when i get to encrypting the file using a PGPEncryptedDataGenerator and the key I get a ClassNotFound exception.

似乎提供程序在运行时找不到此类。我肯定知道我有它的罐子……

It seems the provider can't find this class at runtime, though I know for sure I have its jar...

我正在tomcat上运行我的应用程序。
使用Maven处理依赖关系-我放入的充气城堡罐子是bcpg，bcprov，bcmail，bctsp。
我尝试同时使用1.4和1.6版本，但均未成功。
我使用了maven插件中的依赖关系层次结构进行eclipse和pom中的排除，以确保我的项目中没有多个版本的bouncycastle。

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.

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)

推荐答案

您遇到了BouncyCastle Security提供程序安装问题，您要么需要

You have a BouncyCastle Security provider installation problem, you need to either

• 将BouncyCastle添加到JRE / JDK $ JAVA_HOME / jre / lib / security / java.security 文件中提供程序（请确保将其添加到运行时使用的JRE中，例如，如果您安装了多个JRE / JDK）

• Add BouncyCastle to the JRE/JDK $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)

例如

security.provider.2=org.bouncycastle.jce.provider.BouncyCastleProvider

（并对其下方的安全提供程序重新编号-不要将其设置为最高优先级提供程序）。

(and renumber the security providers below it - don't put it as the highest priority provider).

• ，或者您可以像上面一样尝试以编程方式添加BouncyCastle，但在这种情况下，安全策略 $ JAVA_HOME / jre / lib / security / java.policy 应该是无限（您可以从Java主页下载无限策略文件）。

• or you can add BouncyCastle programmatically, as you were trying to do above, but in this case the security policy $JAVA_HOME/jre/lib/security/java.policy should be "unlimited" (you can probably download an unlimited policy file from the Java homepage).

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