Polygon Zero accuses Matter Labs’ builders of plagiarism

by Jeremy

Replace (Aug. 3 at  9:49 p.m. UTC): This text has been up to date so as to add Matter Labs’ response. 

Polygon’s zero-knowledge scaling arm, Polygon Zero, is accusing builders of Matter Labs of copy-pasting “a considerable quantity of supply code” from its Plonky2 library, in accordance with an announcement on Aug. 3.

The allegedly plagiarized code was discovered on zkSync, a competitor layer-2 scaling answer for Ethereum powered by zero-knowledge know-how. Matter Labs, the developer of the zkSync ecosystem, has denied the claims.

In keeping with Polygon Zero, Matter Labs lately launched a proving system known as Boojum with a number of code copy-pasted from essential parts of its recursive SNARK Plonky2. A recursive SNARK is a cryptographic proof that permits one get together (the prover) to reveal to a different get together (the verifier) {that a} sure assertion is true, with out revealing any extra data.

Polygon Zero claims that the code was included with out the unique copyrights or clear attribution to the unique authors. It additionally famous that Boojum is extraordinarily much like Plonky2’s library. “It makes use of the identical technique of parallel repetition to spice up soundness in a small area, related customized gates to effectively arithmetize recursive verification, and the identical lookup argument developed by our teammate Ulrich Haböck,” reads the weblog publish.

Moreover, Polygon famous that Matter Labs has marketed Boojum as 10x sooner than Plonky2. “Questioning how that is attainable, on condition that the performance-critical area arithmetic code is instantly copied from Plonky2?”

In keeping with Polygon Zero:

“It’s nice to present credit score, and we recognize the popularity for our optimization of the Poseidon parameters. Nevertheless, it won’t be obvious to the reader that Boojum borrows way over the Poseidon constants from Plonky2, and in reality that Boojum’s design is sort of an identical to Plonky2’s, even to the purpose of copy-pasted code.”

In feedback to Cointelegraph, Matter Labs expressed disappointment to see Polygon’s management group “spreading unfaithful claims.” In keeping with a spokesperson, “the brand new Boojum high-performance proof system leverages 5% of from Plonky2, which is prominently attributed within the first line of our module. The place else, apart from the very first line of our library would this have been included if we wished it to be extra distinguished?”

This isn’t the primary time plagiarism accusations have surfaced within the crypto group. In March, a member of the Shiba Inu (SHIB) group reported that the Shibarium layer-2 beta testnet and Rinia testnet had an identical chain IDs, together with claims that the Shibarium alpha testnet was a replica of Polygon’s Mumbai testnet.

Journal: Right here’s how Ethereum’s ZK-rollups can turn out to be interoperable