On April 12th, a researcher and developer known as tevador published a technical draft on GitHub containing a new addressing scheme for Monero called Jamtis. This scheme is designed to maintain the privacy of transactions even if the elliptic curve cryptography that protects blockchain networks today is broken by developments and advances in quantum computing.
The proposal comes against a backdrop of growing concerns. Google’s quantum AI research, published at the end of March, estimates that quantum computers will: Decrypt Bitcoin public key in under 9 minutesa time shorter than the average mining time of a block. This means that an attacker with sufficient hardware could theoretically be able to intercept transactions before they are recorded on the chain.
The problem Jamtis is trying to solve is specific. If someone knows the Monero address and has a sufficiently powerful quantum computer; Transaction history linked to that wallet can be reconstructed. The reason is that the direction of the current depends on the elliptic curve discrete logarithm problem (ECDLP). ECDLP is a mathematical calculation that classical computers cannot solve in a reasonable amount of time, but advanced quantum machines can.
The new Jamtis format adds a layer of post-quantum encryption using an algorithm called CSIDH. This results in Transactions will continue to remain private even if ECDLP is applied. Even if your wallet address is publicly known.
What is Jamtis and why is it important?
Jamtis is not a new concept. Monero’s future Seraphis protocol has been in development for years as part of a major redesign of the network’s transaction system. Built into this version is post-quantum protection for addressing schemes..
Features that Jamtis was already considering before this update include the possibility to delegate blockchain scanning to a third party without revealing which outputs belong to the wallet, new access levels for merchants, and Generate addresses without having to track the number of addresses created.
The draft is published on the GitHub platform and available for community review. Tevador himself said it was incomplete but good enough for comment. For now, this is a research proposal. There is no implementation date set, nor is it confirmed to be part of any future protocol updates.
Monero plans to incorporate FCMP++, a cryptographic enhancement that replaces current ring signatures with more quantum-resistant full-chain membership proofs. Post-quantum Jamtis would be a complementary step in the same direction.
(Tag Translation) Quantum Computing
