What is your business use case. Will help to address it accordingly.
Thanks Rahul for helping, want to understand how to use security payload generator. can it be used to authenticate in soap requests ? apologies if the desc sounds vague
Security payload provided authentication values in encrypted mode. It is useful for secured connections over the network. Security payload is not the Informatica MDM concept. It is a separate concept, you can find more details here - IPsec - Wikipedia
Yes you can use security payload for SOAP calls, this is an raw binary data supplied to an MDM Hub operation request that can contain supplemental data required for further authentication or authorization.
The security payload generator utility generates a security payload that is used as part of the process of encrypting and decrypting hashed passwords in the MDM Hub.
The folder <MDM Hub installation directory>\hub\resourcekit\security_payload_generator_lib contains the security payload generator utility and associated JAR files that are required for the utility to run.