Kostas Chalkias, the co-founder and chief cryptographer at Mysten Labs, says Bitcoin will be the first blockchain picked clean by quantum-meets-code once the big-brained machines grow teeth enough to crack the present cryptographic locks.
In a recent chat on the When Shift Happens podcast, Chalkias pointed to Satoshi Nakamoto’s addresses, those public keys lounging in the sun and making for easy targets, if one squints at the right angle.
“All of the chains, in my opinion, should start the migration now until 2030,” he quipped.
The Quantum Menace: When Will It Arrive?
Ten years ago the cryptographers were laying out a calendar for a quantum doomsday around 2030-2035. Chalkias, ever the optimist with a dash of paranoia, now believes the threat won’t crash the party in the next five years. He does add, however, that AI could give quantum computing a prod in unpredictable directions.
Government agencies like NIST have already begun insisting on quantum-safe algorithm support. The pressure is mounting for blockchain networks to stop dawdling and catch up with the times.
SUI Claims the Quantum Edge Over Ethereum and Solana
Chalkias explained that SUI uses the EDDSA algorithm, which he declares to be better suited for quantum safety than ECDSA, the workhorse behind Bitcoin and Ethereum.
His team has also conjured an algorithm that lets existing SUI addresses become quantum-safe through a single-click upgrade using post-quantum zero-knowledge proofs. He pointed out that this clever trick does not work for Ethereum or Bitcoin.
Right now, no quantum-safe blockchain sits in the top 40 by market cap. The Ethereum Foundation is funding research into the problem, and Solana’s community is tinkering with new quantum-safe address types.
Big Names Betting on SUI
Google has chosen SUI to test agentic AI payments. The Greek stock market has also selected SUI over other blockchains for its flexibility across a variety of use cases.
Chalkias previously cut his teeth on Facebook’s Libra project and WhatsApp’s encrypted payments. He brings over 15 years of cryptographic research to the table.
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2026-01-24 15:06