Key takeaways

  • Starknet says it is actively considering becoming a standalone Layer 1 blockchain, with a target of 2027 for quantum-resistant security.
  • The network already relies on zero-knowledge STARK proofs and hash-based cryptography, but parts of its security as an Ethereum Layer 2 remain tied to parent-chain systems.
  • Two pressure points are bridge messaging that uses elliptic-curve cryptography and data availability secured through Ethereum blobs with KZG commitments.
  • Ethereum's stated target for full Layer 1 quantum resistance is the end of 2029, so Starknet's proposed 2027 goal would place it ahead of Ethereum if completed.
  • The proposal has emerged amid public debate over artificial intelligence accelerating cryptographic threats, with Ethereum researcher Justin Drake urging preparation on October 7 and co-founder Eli Ben-Sasson raising concerns on October 8.

What happened

Starknet said in a post on X that it is actively considering becoming a standalone Layer 1 blockchain, describing the change as a route toward becoming the first fully quantum-resistant network. Its builders set 2027 as the target for quantum-resistant security, while concerns grow that artificial intelligence could accelerate attacks on existing cryptography.

The announcement is not a claim that Starknet is already an independent chain. As a Layer 2 on Ethereum, Starknet currently uses Ethereum for parts of its security stack. It already uses zero-knowledge STARK proofs based on hash-based cryptography and has an active roadmap for post-quantum security. But two dependencies remain outside direct control of its builders.

The first is bridge messaging. Starknet communicates with Ethereum through a bridge that uses elliptic-curve cryptography. If that dependency were removed before Ethereum completes the relevant upgrade, the bridge could break. The second is data availability. Starknet publishes state data to Ethereum through blobs secured by KZG commitments, which rely on cryptography vulnerable to sufficiently powerful quantum computers. A failure in KZG would affect data availability, although Starknet's STARK proofs would continue to protect the validity of its state.

Ethereum is targeting full Layer 1 quantum resistance by the end of 2029. Starknet's proposed 2027 timeline would therefore put it ahead of its parent network, provided it can complete the remaining work and settle the architectural questions involved in becoming an independent chain. The proposal was first published by CryptoPotato.

Market context

The discussion reflects a broader blockchain industry debate about whether quantum computing threats, potentially accelerated by advances in AI-assisted mathematics, require earlier action than current roadmaps assume.

On October 7, Ethereum researcher Justin Drake urged the blockchain industry to begin preparing for what he called "bunker mode." He recommended a controlled migration of assets to addresses whose public keys remain hidden. Vitalik Buterin warned against rushing the process.

On October 8, Starknet co-founder Eli Ben-Sasson raised similar concerns in posts on X, arguing that artificial intelligence could bring cryptographic threats closer than expected. He identified cryptographic choice and the ability to upgrade security systems as the two foundations of post-quantum readiness.

For Starknet, the timing matters because its Layer 2 design leaves room for independent upgrade control but also inherited dependencies. The network has already developed infrastructure that could help it operate independently, including STRK staking and multiple sequencers. However, it would still need to resolve data availability, final settlement, and changes to its official bridge.

Why it matters

The core issue is control over security upgrades. If Starknet remains a Layer 2, some quantum-security outcomes depend on Ethereum's path. A standalone Layer 1 could give its builders more authority over when and how cryptographic changes are made. That may reduce exposure to parent-chain upgrade delays, but it also shifts responsibility to Starknet's own consensus, sequencing, data availability, and settlement systems.

The bridge question carries particular weight. Today, Ethereum verifies Starknet withdrawal proofs before bridged funds can be released. If Starknet becomes a Layer 1, it could continue posting STARK proofs to Ethereum, preserving a connection between the networks, or sever that dependency entirely. But those approaches would create different security assumptions for users.

The data availability issue is narrower than it first appears. STARK proofs protect state validity, while KZG commitments secure the availability mechanism tied to Ethereum. If the availability layer fails, users may still have cryptographic evidence that a state is valid, but the network's operational guarantees would need to be replaced by another design.

What to watch

A decision to become an independent Layer 1 would require Starknet to define how data availability is provided, how final settlement works, and whether the official bridge continues to rely on Ethereum or moves to a new cryptographic design.

Readers should watch whether Starknet's 2027 quantum-resistance target remains a stated ambition or becomes a public technical milestone with clear dependencies. The comparison with Ethereum's end-of-2029 target also matters: if Ethereum's roadmap slows or accelerates, Starknet's independence may become less about being ahead on quantum security and more about whether it can sustain a secure standalone network.

The debate around artificial intelligence and cryptographic threat models is likely to continue. Justin Drake's October 7 call for preparation and Eli Ben-Sasson's October 8 comments show that the question is now whether current timelines and inherited Layer 2 dependencies are acceptable.