iLocking Kft. — mission-critical systems engineering
Systems that must not fail.
Correctness at scale.
Three disciplines meet here. Business — twenty years inside banking, settlement and energy markets, where we learned what a process is actually worth. Cryptography — fifteen years of protocol design, up to schemes of our own invention. Engineering — distributed systems that scale linearly and run for decades. Most firms offer one of the three. Mission-critical systems need all of them, in the same room, at the same table.
- 25 yrs
- the company
- 20 yrs
- building critical software
- 15 yrs
- cryptographic engineering
- 1st
- blockchain-based core banking platform behind an EU-licensed e-money institution
- 1st
- MiCA licence in an EU state, engineered by us
What we do
Mission-critical architecture & delivery
From blank page to production: specifications a bank can build from, architectures a regulator can read, delivery that ships. Analytical accounting, settlement engines, back-office platforms.
Architecture & delivery 02Distributed algorithms & systems
Consensus, replication, state machines, message-driven pipelines. High-throughput transactional systems designed for replay, audit and the bad day — not just the demo.
Distributed systems 03Applied cryptography
Fifteen years of it: threshold signatures, publicly verifiable key generation, quantum-safe migration paths, proof systems sized to the problem. Provable, reviewable, boring by design — and some of it published as our own protocols.
Applied cryptographyWhere it runs
Financial core systems
Core banking, securities settlement, factoring, pension fund accounting. The truth layer of finance: analytical ledgers and the general ledger beneath them.
Energy & commodities
Registry, settlement and procurement systems for energy markets. Proven on the power side — exchange clearing, balancing-capacity tenders, European transparency publishing — and built to carry gas, oil and other commodities under the same discipline.
Regulated digital assets
Web3 without the noise: MiCA-licensed platforms, tokenization with a real ledger behind it, DORA-conscious operations.
Public sector & defence
Where process integrity is the mission: sealed procedures no operator can open early, command and entitlement chains enforced by mathematics, compliance provable to outside parties — without surrendering the data. The rigor exists today; this is where it applies next.
Proof, in one line each
- 01
Core banking platform designed from a blank page for one of Central Europe's largest banking groups — from user management to the general ledger.
- 02
Clearing & settlement specification for a national power exchange; balancing-energy tender optimization for the national grid operator, publishing to the European transparency platform.
- 03
A factoring operation's agreement & calculation engine, derived from first principles — variable rates, variable instalments, solved for any unknown.
- 04
A new-generation neo-core banking and account management system, designed and built by us: online general ledger, highly distributed, linearly scalable — an average node on 2 CPUs and 4 GB RAM books 10–15,000 transactions per second and serves 100,000 client accounts. It runs today beneath an EU member state's first MiCA licence.
- 05
Published open research: NPVDKGRS — non-interactive, publicly verifiable distributed key generation over BLS12-381; post-quantum variant designed. — NPVDKGRS
- 06
Our own protocols in the wild: the Pactena Protocol and Qashmore — private, offline-capable digital cash where fraud reveals itself. — Pactena Protocol · Qashmore
Boring, in the best sense.
Mission-critical systems should be dull: deterministic, auditable, reconciled to the cent and to the megawatt-hour. We spent our first decade making classical finance so — account management, securities settlement, pension fund accounting, power markets. We spent the most recent one proving the same discipline holds for the new world: a neo-core banking system with an online general ledger, distributed and linearly scalable; threshold key management where the complete private key never exists; digital asset custody that satisfied a MiCA licensing review. New technology is welcome here — after it passes the same audit as the old.
Real digitization hasn't started yet.
What passes for digitization today is paper processes projected onto screens — the same routing slips, the same waiting, now with login pages. Digital islands, stitched together by email. We build born-digital processes instead: the signature, the authorization, the transmission and the archive form one mathematically protected chain. Turnaround drops from days to seconds, every step leaves evidence — and the evidence works in both directions:
Manifesto
The data stays. The proof travels.
Sensitive records never leave their owner. What leaves is a proof — that the transaction happened, the deadline held, the rules were followed — verifiable by anyone, revealing nothing. Auditable systems without opening the envelope.
Our test for "mission-critical"
Three questions decide how we build:
- 01
If it stops — who notices, and how fast?
- 02
If it's wrong — who pays, and how much?
- 03
If it's audited — what does the trail show?
If the answers frighten you, we should talk.