org.jasypt.exceptions.EncryptionOperationNotPossibleException [英] org.jasypt.exceptions.EncryptionOperationNotPossibleException

问题描述

我使用 Jasypt-1.9.0 和 Spring 3.1 和 Hibernate 4.0.1 。我在我的应用程序中要求连接到密码（root）以加密形式存储在应用程序中的属性文件中的数据库。

我在网上查找并找到以下链接的方式：

1. http://www.jasypt.org/spring31.html




2. http://www.jasypt.org/hibernate.html




3. http://www.jasypt.org/encrypting-configuration.html

我已经为我的要求完成了以下步骤和配置：

• 在构建路径中添加了 jasypt-1.9.0 和 jasypt-hibernate4 -1.9.0。
  
• 在我的 dispatcher-servlet 文件中添加了以下内容：
  

< bean id =propertyConfigurer
class =org.jasypt.spring31.properties.EncryptablePropertyPlaceholderConfigurer>

 < constructor-arg ref =configurationEncryptor/> 
< property name =locations> 
<列表> 
<值GT;类路径：database.properties< /值GT; 
< /列表> 
< /性> 
< /豆腐> 
 
 < bean id =configurationEncryptor
 class =org.jasypt.encryption.pbe.StandardPBEStringEncryptor> 
< property name =configref =environmentVariablesConfiguration/> 
< /豆腐> 
 
 < bean id =environmentVariablesConfiguration
 class =org.jasypt.encryption.pbe.config.EnvironmentStringPBEConfig> 
< property name =algorithmvalue =PBEWithMD5AndDES/> 
< property name =passwordEnvNamevalue =APP_ENCRYPTION_PASSWORD/> 
< / bean> 
  

• 使用 CLI工具的Jasypt 1.9.0，我已经在下面生成了密码
  （CLI的快照）

< img src =https://i.stack.imgur.com/RWahL.pngalt =在这里输入图片描述>
- 添加一个新的环境变量作为 APP_ENCRYPTION_PASSWORD 作为根

• 在 database.properties文件中添加了加密密码

  db.driverClassName = com.mysql.jdbc.Driver 
 db.url = jdbc：mysql：// localhost：3306 / db1 
 db.username = root 
 db.password = ENC（bmfeQmgP / hJrh + mj6NANKA ==）
  
 
 
 $ b现在如果我运行我的应用程序，出现以下异常：
  org.jasypt.exceptions.EncryptionOperationNotPossibleException 
 at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.decrypt（ StandardPBEByteEncryptor.java:981）
在org.jasypt.properties.PropertyValueEncryptionUtils.decrypt（PropertyValueEncryptionUtils.java:72） 
  
 
 
解决方案
这个问题很可能过时了，未来的寻求者...... 
 EncryptionOperationNotPossibleException是jasypt引发的一般异常，用于掩盖其他可能的异常。在以下情况下可能会发生此异常：
 
 
 
 
 
您的jdk没有安装JCE unlimited capabilities（最常见的情况）
 
在数据库中使用其他密码加密过的数据
 
 
在数据库中有一些数据未加密之前，您已将某些数据加密到某个字段
 
 
 jasypt由于数据奇怪的损坏而无法解密来自数据库的加密值
 
 
许多其他人，只需要进行调试以找出真正的原因.. 
 
 
 
I am using Jasypt-1.9.0 with Spring 3.1 and Hibernate 4.0.1. I have a requirement in my application to connect to database whose password(root) is stored  in the encrypted form in the property file within the application.

I looked online and found the way with following links:

http://www.jasypt.org/spring31.html
http://www.jasypt.org/hibernate.html
http://www.jasypt.org/encrypting-configuration.html
I have done following steps and configuration for my requirement:


Added jasypt-1.9.0 and jasypt-hibernate4-1.9.0 in build path.
Added following in my dispatcher-servlet file:



  
< bean id="propertyConfigurer"
           class="org.jasypt.spring31.properties.EncryptablePropertyPlaceholderConfigurer">
   < constructor-arg ref="configurationEncryptor" />
   < property name="locations">
     < list>
       < value>classpath:database.properties< /value>
     < /list>
   < /property>
 < /bean>

 < bean id="configurationEncryptor"
     class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
   < property name="config" ref="environmentVariablesConfiguration" />
 < /bean>

 < bean id="environmentVariablesConfiguration"
class="org.jasypt.encryption.pbe.config.EnvironmentStringPBEConfig">
< property name="algorithm" value="PBEWithMD5AndDES" />
< property name="passwordEnvName" value="APP_ENCRYPTION_PASSWORD" />
</bean>




Using CLI tool of Jasypt 1.9.0, i have generated the password
below(attached snapshot of CLI)



 - Added a new Environment  Varibale as APP_ENCRYPTION_PASSWORD with value as root


Added the encrypted password in database.properties file



db.driverClassName=com.mysql.jdbc.Driver
db.url=jdbc:mysql://localhost:3306/db1
db.username=root
db.password=ENC(bmfeQmgP/hJrh+mj6NANKA==)

Now if i run my application, following exception appears:
org.jasypt.exceptions.EncryptionOperationNotPossibleException
    at org.jasypt.encryption.pbe.StandardPBEByteEncryptor.decrypt(StandardPBEByteEncryptor.java:981)
    at org.jasypt.encryption.pbe.StandardPBEStringEncryptor.decrypt(StandardPBEStringEncryptor.java:725)
    at org.jasypt.properties.PropertyValueEncryptionUtils.decrypt(PropertyValueEncryptionUtils.java:72)

解决方案
The question is most probably out of date, but for future seekers...
EncryptionOperationNotPossibleException is a general exception thrown by jasypt to mask other possible exceptions. This exception can occur when:


your jdk does not have the JCE unlimited strenght installed (most    common case)  
you had some data in the database that was encrypted    before with other password
you had some data in database that were    not encrypted before and you added encryption to some field 
jasypt    failed to decrypt the encrypted value from db because of some strange    corruption of data
many many others, you just need to debug to find    out the real cause..


                        
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