Add mixing function #50
Open
Conversation
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
atsvetkova-ody
approved these changes
Sep 30, 2025
Collaborator
Author
|
@atsvetkova-ody , I agree that we will need a 64 bit option for certain IDs. I've updated the |
Collaborator
Author
|
I've added a similar function that can deterministically obfuscate strings since some of the IDs should be deterministic based on string values. |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
This PR adds code to create a mixing function as part of the setup step in the workflow. The new
obf_idfunction produces:The goal is to use this in place of
FARM_FINGERPRINT, which produces a signed 64-bit integer. In OMOP, we prefer unsigned 32-bit integers for IDs when possible. The reversibility ofobf_idis not a concern, as it operates on already de-identified data. The goal is to generate unique, transformed (not anonymized or confidential) values for OMOP IDs.