请教canal v1.1.1 版本配置pwdPublicKey问题????

example/instance.properties中如下配置项，mysql用户名、密码都配置了，这个pwdPublicKey是配置什么公钥？配空了启动不了，注释掉也启动不了,

canal.instance.dbUsername=canal canal.instance.dbPassword=canal canal.instance.pwdPublicKey=

查看spring/memory-instance.xml文件中,如下配置，是必须要有的配置吗？ 以下为log:

Caused by: java.lang.IllegalArgumentException: String length must be a multiple of four. at com.alibaba.druid.util.Base64.base64ToByteArray(Base64.java:122) ~[druid-1.1.9.jar:1.1.9] at com.alibaba.druid.util.Base64.base64ToByteArray(Base64.java:107) ~[druid-1.1.9.jar:1.1.9] at com.alibaba.druid.filter.config.ConfigTools.decrypt(ConfigTools.java:150) ~[druid-1.1.9.jar:1.1.9] at com.alibaba.druid.filter.config.ConfigTools.decrypt(ConfigTools.java:65) ~[druid-1.1.9.jar:1.1.9] at com.alibaba.otter.canal.parse.support.AuthenticationInfo.initPwd(AuthenticationInfo.java:28) ~[canal.parse-1.1.1.jar:na]

看了下源码，把配置项改为false即可，canal.instance.enableDruid=false

原提问者GitHub用户hackxboy1985