Quantum-safe digital asset infrastructure keeps tokenised assets secure for years. See what Sydney asset managers should know before they build.
Roohan Adeel
Tokenisation is a hot topic among asset managers, and Sydney is no exception. A bond, a fund unit, or a share of a property becomes a digital token on a blockchain, and that token records who owns it. Settlement gets quicker, ownership can be split into smaller pieces, and the register is easier to maintain.
However, one question gets skipped in most of those conversations. What is protecting that token ten years from now? The answer decides whether a tokenised asset is something clients can rely on for the long haul. And that’s the only reason Post-Quantum RWA
One question gets skipped in most of those conversations.
Every time a token changes hands, the transfer is approved with a digital signature. Think of it like a signature on a cheque. If it’s genuine, the transfer goes through. If someone can fake it, they can move the asset.
Most blockchains create these signatures with a method called ECDSA. Against the computers we use today, it’s strong and compatible. A powerful machine could take the public information on a blockchain, work out an owner's private key and sign transfers as that owner. Nobody can say when a machine like that will exist. What makes it harder to ignore is how blockchains work. Once an account sends its first transaction, its public key is visible to everyone. Someone can copy that data today and simply wait, and there's no way to hide it on the ledger afterwards.
If you're in a short-term crypto trade and something feels off, you sell. A tokenised bond or credit fund doesn't work like that. You hold it for years, often right up to maturity, and for all that time the register has to show the right owner against the right holding.
This is where it stops being just an IT problem. Say a forged transfer turns up in a tokenised fund. Money has gone missing, sure, but that's only the start. Investors will want to know what else in the register could be wrong. Auditors will ask the same thing, and so will the other side of every deal. Nobody has a good answer ready. Sydney managers work with super funds, institutional clients, and custodians, and those clients expect their money to stay safe for a long time. They'll look at what the token runs on, not only the product wrapped around it.
People generally say the chain will just upgrade when the danger gets adjacent. On a live network, that‘s a lot harder than it sounds. Wallets, addresses, smart contracts, validators, and custody systems are all built around the way signatures work today. To adjust that, every user has to move their assets to a new account. Some will do it late, some will forget, and one slip can lock someone out of what they own.
If your platform holds client money, you don’t want to be doing that in a rush. On a network that already uses quantum-resistant signatures, you never have to.
Protecting the wallet isn‘t enough on its own. Validators, the computers that verify transactions, sign messages too. If they still employ the older technique, the frail location has just shifted somewhere else.
Quantum Safe Digital Asset Infrastructure means the whole chain gets the equivalent protection: the transactions users send, the signatures validators make when they verify blocks, and the keys behind every wallet. So when your security team asks which parts are covered, you can say all of them.
ARMchain is a Layer 1 blockchain built around this notion. Instead of ECDSA, it uses ML-DSA, a post-quantum signature standard issued by NIST, the US standards body. It covers user transactions, validators, and wallets from the start, so nothing is added on later.
It‘s moreover recognizable to build on. Developers write in Solidity, the identical language used for Ethereum contracts, so there’s no new way of working to learn. And transactions are final as soon as they‘re validated, so settlement and redemptions get an obvious and evident answer without waiting for more confirmations. For Web3 Enterprise Security Sydney teams, this answers the query every review asks: what stops someone from forging a transfer in the future? The signatures were built to resist quantum assaults from the first block.
The keys and signatures are broader, so every transaction carries more data. A basic transfer on ARMchain is approximately 35 times the size of an old-style one. If your fund pays distributions every quarter, you won‘t notice. If it trades all day, check the fees before you commit. There’s one change your developers will notice. Hardhat and Foundry don‘t support this kind of signing natively, so they’ll employ ARMchain‘s SDK for it. Their existing contracts remain precisely as they are.
Start with one query for your tech team: where do we employ signatures today? Wallets, custody, admin keys, validators and anything linked to them. Write the list down. Most teams find more places than they expected. Then give one developer an afternoon with the ARMchain documentation. They can run a local Fakenet on a laptop and sign one of your existing contracts. By the end of the day, you‘ll have a plain and understandable concept of what an integration would take.
Tokenisation is moving fast in Sydney, and most of the attention goes to speed and adoption. The signature behind each token gets far less. It‘s the one thing every transfer depends on, and a bond or credit fund will depend on it for years. Post-Quantum RWA Tokenisation is all about making that option early, while it’s still simple, instead of attempting to correct it with client money already on the ledger. If you're looking at a tokenised asset system and want to talk through what it would mean for your setup, get in touch with the ARMchain team.
Is ML-DSA a proven standard, or is it still experimental?
It's a published standard. NIST released it as FIPS 204 in August 2024 after years of public review by researchers around the world. That doesn't make it risk-free, but it does mean you're not betting on something one vendor made up.
How do our people back up keys this large?
The same way they back up any other wallet. ARMchain's wallet derives the key from a standard 12- or 24-word recovery phrase, so staff doesn't have to store a 2,560-byte file anywhere. If you add guardian-style recovery for fund accounts, check which signing method it uses first, because options like passkeys and MPC for ECDSA aren't post-quantum.
Does a quantum-safe chain settle slower?
No. A transaction on ARMchain is final once it's confirmed, so settlement doesn't wait on extra blocks. What changes is the size of each transaction, which matters for data and fees, not for how quickly it's final.