La cadena Arc de Circle lanza su hoja de ruta de criptografía poscuántica, con una actualización integral de extremo a extremo desde la cartera hasta el validador.

Golden Finance reported that on April 6, according to the official blog, Arc, Circle’s institutional-grade blockchain arm, released a phased upgrade roadmap for post-quantum cryptography (PQ). The plan is to introduce post-quantum signature schemes at the time of mainnet rollout and progressively cover an end-to-end stack level, including private state protection, infrastructure hardening, and validator authentication. At launch, Arc mainnet will support post-quantum signatures using an opt-in mechanism, without requiring forced migration or a network-wide reset, allowing users to independently create wallets with long-term security. The near-term goal is to extend quantum resistance to the private virtual machine (VM) layer, protecting private balances, private transactions, and private payees. In privacy mode, the public key will additionally encapsulate a symmetric encryption layer. The mid-term plan is to advance upgrades to the infrastructure layer, aligning with industry standards such as TLS 1.3, covering access control, cloud environments, and hardware security modules (HSMs). The long-term goal is to complete validator signature hardening. Given that Arc’s block finality time is less than 1 second, current assessment suggests the quantum attack risk in this stage is relatively limited. Progress will be made steadily once the post-quantum consensus toolchain matures. Circle also warned that attackers may adopt a “collect now, decrypt later” strategy, and institutions should plan their cryptography migration path as early as possible.