Tezos Launches TzEL, a Post-Quantum Privacy Payment Prototype on Testnet

According to Cointelegraph, Tezos ecosystem developers have launched the quantum-resistant privacy payment prototype TzEL on the testnet. TzEL employs post-quantum cryptography and zk-STARK proofs to defend against “harvest now, decrypt later” attacks, safeguarding transaction data and encrypted payment metadata. The prototype also integrates 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. TzEL is currently running on the Tezos testnet, and the Tezos ecosystem’s transition to post-quantum cryptography remains in its early stages.