## Jasypt component

*Available as of Camel 2.5*

http://www.jasypt.org/[Jasypt] is a simplified encryption library which
makes encryption and decryption easy. Camel integrates with Jasypt to
allow sensitive information in <<properties-component,Properties>> files to
be encrypted. By dropping *`camel-jasypt`* on the classpath those
encrypted values will automatically be decrypted on-the-fly by Camel.
This ensures that human eyes can't easily spot sensitive information
such as usernames and passwords.

If you are using Maven, you need to add the following dependency to your `pom.xml`
for this component:

[source,xml]
------------------------------------------------------------
<dependency>
    <groupId>org.apache.camel</groupId>
    <artifactId>camel-jasypt</artifactId>
    <version>x.x.x</version>
    <!-- use the same version as your Camel core version -->
</dependency>
------------------------------------------------------------

If you are using an Apache Karaf container, you need to add the following dependency to your `pom.xml`
for this component:

[source,xml]
------------------------------------------------------------
<dependency>
  <groupId>org.apache.karaf.jaas</groupId>
  <artifactId>org.apache.karaf.jaas.jasypt</artifactId>
  <version>x.x.x.x</version>			
  <!-- use the same version as your Camel core version -->
</dependency>
------------------------------------------------------------


### Tooling

The Jasypt component provides a little command line
tooling to encrypt or decrypt values.

The console output the syntax and which options it provides:

[source,java]
--------------------------------------------------------------
Apache Camel Jasypt takes the following options

  -h or -help = Displays the help screen
  -c or -command <command> = Command either encrypt or decrypt
  -p or -password <password> = Password to use
  -i or -input <input> = Text to encrypt or decrypt
  -a or -algorithm <algorithm> = Optional algorithm to use
--------------------------------------------------------------

For example to encrypt the value `tiger` you run with the following
parameters. In the apache camel kit, you cd into the lib folder and run
the following java cmd, where _<CAMEL_HOME>_ is where you have
downloaded and extract the Camel distribution.

[source,java]
----------------------------------------------------------------
$ cd <CAMEL_HOME>/lib
$ java -jar camel-jasypt-2.5.0.jar -c encrypt -p secret -i tiger
----------------------------------------------------------------

Which outputs the following result

[source,java]
----------------------------------------
Encrypted text: qaEEacuW7BUti8LcMgyjKw==
----------------------------------------

This means the encrypted representation `qaEEacuW7BUti8LcMgyjKw==` can
be decrypted back to `tiger` if you know the master password which was
`secret`. +
 If you run the tool again then the encrypted value will return a
different result. But decrypting the value will always return the
correct original value.

So you can test it by running the tooling using the following
parameters:

[source,java]
-----------------------------------------------------------------------------------
$ cd <CAMEL_HOME>/lib
$ java -jar camel-jasypt-2.5.0.jar -c decrypt -p secret -i qaEEacuW7BUti8LcMgyjKw==
-----------------------------------------------------------------------------------

Which outputs the following result:

[source,java]
---------------------
Decrypted text: tiger
---------------------

The idea is then to use those encrypted values in your
<<properties-component,Properties>> files. Notice how the password value is
encrypted and the value has the tokens surrounding `ENC(value here)`

TIP: When running jasypt tooling, if you come across `java.lang.NoClassDefFoundError: org/jasypt/encryption/pbe/StandardPBEStringEncryptor` this means you have to include jasypt{version}.jar in your classpath. Example of adding jar to classpath may be copying jasypt{version}.jar to $JAVA_HOME\jre\lib\ext if you are going to run as `java -jar ...`. The latter may be adding jasypt{version}.jar to classpath using `-cp`, in that case you should provide main class to execute as eg: `java -cp jasypt-1.9.2.jar:camel-jasypt-2.18.2.jar org.apache.camel.component.jasypt.Main -c encrypt -p secret -i tiger`


### URI Options

The options below are exclusive for the Jasypt
component.

[width="100%",cols="10%,10%,10%,70%",options="header",]
|=======================================================================
|Name |Default Value |Type |Description

|`password` |`null` |`String` |Specifies the master password to use for decrypting. This option is
mandatory. See below for more details.

|`algorithm` |`null` |`String` |Name of an optional algorithm to use.
|=======================================================================


### Protecting the master password

The master password used by Jasypt must be provided,
so that it's capable of decrypting the values. However having this
master password out in the open may not be an ideal solution. Therefore
you could for example provide it as a JVM system property or as a OS
environment setting. If you decide to do so then the `password` option
supports prefixes which dictates this. `sysenv:` means to lookup the OS
system environment with the given key. `sys:` means to lookup a JVM
system property.

For example you could provided the password before you start the
application

[source,java]
-----------------------------------------
$ export CAMEL_ENCRYPTION_PASSWORD=secret
-----------------------------------------

Then start the application, such as running the start script.

When the application is up and running you can unset the environment

[source,java]
---------------------------------
$ unset CAMEL_ENCRYPTION_PASSWORD
---------------------------------

The `password` option is then a matter of defining as follows:
`password=sysenv:CAMEL_ENCRYPTION_PASSWORD`.

### Example with Java DSL

In Java DSL you need to configure Jasypt as a
`JasyptPropertiesParser` instance and set it on the
<<properties-component,Properties>> component as show below:

The properties file `myproperties.properties` then contain the encrypted
value, such as shown below. Notice how the password value is encrypted
and the value has the tokens surrounding `ENC(value here)`

### Example with Spring XML

In Spring XML you need to configure the `JasyptPropertiesParser` which
is shown below. Then the Camel <<properties-component,Properties>>
component is told to use `jasypt` as the properties parser, which means
Jasypt has its chance to decrypt values looked up in
the properties.

[source,xml]
-----------------------------------------------------------------------------------------------------------
<!-- define the jasypt properties parser with the given password to be used -->
<bean id="jasypt" class="org.apache.camel.component.jasypt.JasyptPropertiesParser">
    <property name="password" value="secret"/>
</bean>
 
<!-- define the camel properties component -->
<bean id="properties" class="org.apache.camel.component.properties.PropertiesComponent">
    <!-- the properties file is in the classpath -->
    <property name="location" value="classpath:org/apache/camel/component/jasypt/myproperties.properties"/>
    <!-- and let it leverage the jasypt parser -->
    <property name="propertiesParser" ref="jasypt"/>
</bean>
-----------------------------------------------------------------------------------------------------------

The <<properties-component,Properties>> component can also be inlined
inside the `<camelContext>` tag which is shown below. Notice how we use
the `propertiesParserRef` attribute to refer to
Jasypt.

[source,java]
--------------------------------------------------------------------------------------------------------------
<!-- define the jasypt properties parser with the given password to be used -->
<bean id="jasypt" class="org.apache.camel.component.jasypt.JasyptPropertiesParser">
    <!-- password is mandatory, you can prefix it with sysenv: or sys: to indicate it should use
         an OS environment or JVM system property value, so you dont have the master password defined here -->
    <property name="password" value="secret"/>
</bean>
 
<camelContext xmlns="http://camel.apache.org/schema/spring">
    <!-- define the camel properties placeholder, and let it leverage jasypt -->
    <propertyPlaceholder id="properties"
                         location="classpath:org/apache/camel/component/jasypt/myproperties.properties"
                         propertiesParserRef="jasypt"/>
    <route>
        <from uri="direct:start"/>
        <to uri="{{cool.result}}"/>
    </route>
</camelContext>
--------------------------------------------------------------------------------------------------------------

### Example with Blueprint XML

In Blueprint XML you need to configure
the `JasyptPropertiesParser` which is shown below. Then the
Camel <<properties-component,Properties>> component is told to
use `jasypt` as the properties parser, which
means Jasypt has its chance to decrypt values looked
up in the properties.

[source,xml]
----------------------------------------------------------------------------------------------------------------
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.0.0"
           xsi:schemaLocation="
           http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd">

  <cm:property-placeholder id="myblue" persistent-id="mypersistent">
      <!-- list some properties for this test -->
      <cm:default-properties>
          <cm:property name="cool.result" value="mock:{{cool.password}}"/>
          <cm:property name="cool.password" value="ENC(bsW9uV37gQ0QHFu7KO03Ww==)"/>
      </cm:default-properties>
  </cm:property-placeholder>

    <!-- define the jasypt properties parser with the given password to be used -->
    <bean id="jasypt" class="org.apache.camel.component.jasypt.JasyptPropertiesParser">
        <property name="password" value="secret"/>
    </bean>

    <camelContext xmlns="http://camel.apache.org/schema/blueprint">
      <!-- define the camel properties placeholder, and let it leverage jasypt -->
      <propertyPlaceholder id="properties"
                           location="blueprint:myblue"
                           propertiesParserRef="jasypt"/>
        <route>
            <from uri="direct:start"/>
            <to uri="{{cool.result}}"/>
        </route>
    </camelContext>

</blueprint>
----------------------------------------------------------------------------------------------------------------

The <<properties-component,Properties>> component can also be inlined
inside the `<camelContext>` tag which is shown below. Notice how we use
the `propertiesParserRef` attribute to refer
to Jasypt.

[source,xml]
----------------------------------------------------------------------------------------------------------------
<blueprint xmlns="http://www.osgi.org/xmlns/blueprint/v1.0.0"
           xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
           xmlns:cm="http://aries.apache.org/blueprint/xmlns/blueprint-cm/v1.0.0"
           xsi:schemaLocation="
           http://www.osgi.org/xmlns/blueprint/v1.0.0 http://www.osgi.org/xmlns/blueprint/v1.0.0/blueprint.xsd">

    <!-- define the jasypt properties parser with the given password to be used -->
    <bean id="jasypt" class="org.apache.camel.component.jasypt.JasyptPropertiesParser">
        <property name="password" value="secret"/>
    </bean>

    <camelContext xmlns="http://camel.apache.org/schema/blueprint">
      <!-- define the camel properties placeholder, and let it leverage jasypt -->
      <propertyPlaceholder id="properties"
                           location="classpath:org/apache/camel/component/jasypt/myproperties.properties"
                           propertiesParserRef="jasypt"/>
        <route>
            <from uri="direct:start"/>
            <to uri="{{cool.result}}"/>
        </route>
    </camelContext>

</blueprint>
----------------------------------------------------------------------------------------------------------------

### See Also

* Security
* <<properties-component,Properties>>
* http://activemq.apache.org/encrypted-passwords.html[Encrypted
passwords in ActiveMQ] - ActiveMQ has a similar feature as this
`camel-jasypt` component
