A real problem, not a pitch.
Arqasign is built by AinurQuantum, a company built around one conviction: most of what gets sold today as "quantum-ready" or "post-quantum" is a marketing label glued onto something that was never actually checked against the physics or the cryptography. We build the other way around: start from what can be inspected, verified, and run against real documents, and only make a claim once it's been proven, not because it sounds good in a pitch.
Why Arqasign exists
The starting point wasn't "let's build a signature tool": it was noticing that the entire European electronic-signature stack, the libraries governments and companies actually run in production, has no answer for what happens to a signature once a cryptographically relevant quantum computer exists. Nobody was auditing that gap in a way a non-cryptographer could act on, so we built the tool that does: real inspection of a real document, against a real, sourced policy table, not a guess.
Where AinurQuantum is headed
Arqasign is the first product built this way, but the underlying conviction isn't specific to signatures: quantum computing and post-quantum cryptography are moving from research curiosity to something that changes real engineering decisions, on a timeline that's shorter than most organizations assume. AinurQuantum's other product, QuboEngine, applies the same standard to quantum-based optimization. The goal is the same in both: real, verifiable engines that any team can audit today, not lab demos waiting for hardware that doesn't exist yet.
Jahanzeb Raja
Research engineer, founder of AinurQuantum
Arqasign and AinurQuantum are built and maintained by Jahanzeb Raja, a research engineer with a particular focus on applied quantum computing and post-quantum cryptography. The conviction behind both is simple: most of what gets sold today as "quantum-ready" is a label, and it is almost never possible to check.
AinurQuantum exists to close that gap: real engines, not promises, applied today to problems that already matter, from the long-term defensibility of a signed document to quantum-based optimization, with an audit core anyone can download, run, and verify for themselves.