Refector: Add feed-forward step to CompressPoseidon2 function#721
Merged
ThomasPiellard merged 1 commit intomasterfrom Aug 22, 2025
Merged
Refector: Add feed-forward step to CompressPoseidon2 function#721ThomasPiellard merged 1 commit intomasterfrom
ThomasPiellard merged 1 commit intomasterfrom
Conversation
ThomasPiellard
approved these changes
Aug 22, 2025
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
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
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Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be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.
Description
This PR adds a feed-forward step in the
CompressPoseidon2function to enhance collision resistance. The previous implementation of the compression function relied solely on the Poseidon2 permutation.A new test is introduced to ensure that the
CompressPoseidon2function is correctly implemented and produces the same output as theposeidon2.NewMerkleDamgardHasher(), which uses Write and Sum methods to get the final hash output.