TechFlow News: On May 15, according to Cointelegraph, Tezos ecosystem developers have deployed the quantum-resistant privacy payment prototype TzEL on the testnet. TzEL employs post-quantum cryptography and zk-STARK proofs to guard against “harvest now, decrypt later” attacks, thereby protecting transaction data and encrypted payment metadata. The prototype also leverages Tezos’ data availability layer to handle the relatively large size of post-quantum proofs. According to the whitepaper, the quantum-resistant zk-STARK proofs used by TzEL are approximately 300 KB in size. Currently, TzEL is running on the Tezos testnet, and the Tezos ecosystem’s transition to post-quantum cryptography remains in its early stages.
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