java - Spring加密和解密属性文件中的API key

Question

原始问题

我在 Tomcat 中有一个属性文件，在 src/test/resources 中有一个用于测试的属性文件。

目前我有以下设置。我的属性文件加载到我的 XML 文件中config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- Repository and Service layers -->
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:cache="http://www.springframework.org/schema/cache"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
    http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd">

    <!-- ========================= RESOURCE DEFINITIONS ========================= -->

    <context:component-scan base-package="be.omniatravel.service" />
    <context:property-placeholder 
        location="file:${catalina.base}/conf/omniatravel.properties"
        ignore-unresolvable="true" />
        

    <tx:annotation-driven />

</beans>

test-config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- Repository and Service layers -->
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:cache="http://www.springframework.org/schema/cache"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
    http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd">

    <!-- ========================= RESOURCE DEFINITIONS ========================= -->

    <context:component-scan base-package="be.omniatravel.service" />
    <context:property-placeholder 
        location="classpath:omniatravel_test.properties"
        ignore-unresolvable="true" />
        

    <tx:annotation-driven />

</beans>

我可以通过将它放在我的 Java 文件中来访问这些值

public class SunnycarsClient extends WebServiceGatewaySupport {

    @Value("${sunnycars.serviceUri}")
    private String uri; // provided by the webservice
    
    @Value("${sunnycars.operatingKey}")
    private String key; // provide by the webservice
    
    @Value("${sunnycars.passphrase}")
    private String passphrase; // provided by the webservice

}

目前，操作 key 和密码短语作为平面文本存储在这些属性中。我想将它们存储为加密值以最大程度地降低风险，并且仍然能够以我现在的方式进行访问。

更新1

所以我现在所做的就是将config.xml的内容替换为

<?xml version="1.0" encoding="UTF-8"?>
<!-- Repository and Service layers -->
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:cache="http://www.springframework.org/schema/cache"
    xmlns:context="http://www.springframework.org/schema/context" xmlns:tx="http://www.springframework.org/schema/tx"
    xsi:schemaLocation="
    http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
    http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd
    http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache.xsd">

    <!-- ========================= RESOURCE DEFINITIONS ========================= -->

    <context:component-scan base-package="be.omniatravel.service" />

    <!-- bean definitions -->

    <bean
        class="org.jasypt.spring.properties.EncryptablePropertyPlaceholderConfigurer">
        <constructor-arg>
            <bean class="org.jasypt.encryption.pbe.StandardPBEStringEncryptor">
                <property name="config">
                    <bean class="org.jasypt.encryption.pbe.config.EnvironmentStringPBEConfig">
                        <property name="algorithm" value="PBEWithMD5AndDES" />
                        <property name="passwordEnvName" value="APP_ENCRYPTION_PASSWORD" />
                    </bean>
                </property>
            </bean>
        </constructor-arg>
        <property name="locations">
            <list>
                <value>file:${catalina.base}/conf/omniatravel.properties</value>
            </list>
        </property>
    </bean>

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"
        destroy-method="close">
        <property name="sunnycarsMarshallerUri">
            <value>${sunnycars.marshallerUri}</value>
        </property>
        <property name="sunnycarsServiceUri">
            <value>${sunnycars.serviceUri}</value>
        </property>
        <property name="sunnycarsContextPath">
            <value>${sunnycars.contextPath}</value>
        </property>
        <property name="sunnycarsOperatingKey">
            <value>${sunnycars.operatingKey}</value>
        </property>
        <property name="sunnycarsPassphrase">
            <value>${sunnycars.passphrase}</value>
        </property>
    </bean>

    <tx:annotation-driven />

</beans>

但我仍然不清楚我应该如何从我的 Java 代码访问这些。

另外，在属性文件中，我应该将 sunnycars.operatingKey = THE_KEY 替换为 sunnycars.operatingKey = enc(ENCRYPTED_KEY)，但是您如何获得 ENCRYPTED_KEY 值？

Answer 1

首先，您必须从 http://www.jasypt.org/ 下载 jasypt1.9* 工具包

和尝试在 cmd 中使用以下命令运行 encrypt.dat 文件，例如

encrypt.date input=[YOUR PROPERTY FILE VALUE] password=[加密 key 值]它会产生您需要在属性文件中替换的加密值的输出与

=ENC(output encrypted value)

 .. 

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

你也可以在类文件中硬编码密码并分配给bean

<bean class="org.jasypt.encryption.pbe.config.EnvironmentStringPBEConfig">
                  <property name="algorithm" value="PBEWithMD5AndDES" />
                  <property name="password" value="#Key.keyValue}" />
       </bean> 

其中 Key.keyValue 是 Key 类的静态方法。