Can I create an eval function using a python script?

[zchandikaz]

I know how to mask data at indexing time using EVAL and SEDCMD.
But there are more logics I need to consider.

Can I mask data using python script at indexing time or is there any method like that or can I create an eval function using a python script?

[livehybrid]

Using Splunk Enterprise you wouldnt be able to do this if you're ingesting through the typical mechanisms. 

The only thing that I can think of that would allow you to do this is using Splunk Data Stream Processor (DSP) - which allows you to create custom functions to apply to data streams and could be used for encryption/masking etc.

https://docs.splunk.com/Documentation/DSP/1.1.0/User/PluginSDK