Quantum Bill Revives Bitcoin, Ethereum Encryption Debate

That is not a near-term threat. Researchers have not built a quantum computer capable of factoring large numbers or solving elliptic curve discrete logs at a scale that matters. The timeline most cited by cryptographers and government agencies is 10 to 20 years. The National Institute of Standards and Technology (NIST) already runs a multi-year process to standardize post-quantum cryptographic algorithms.

A June 22 executive order directed federal agencies to shift toward NIST-approved post-quantum standards and to help critical infrastructure operators prepare. The quantum readiness bill adds a defense-focused track on top of that civilian effort.

For crypto projects, the practical question is preparation, not an immediate vulnerability. Bitcoin and Ethereum would each need a network-wide upgrade to change their signature schemes. That would require coordination across developers, miners, exchanges and wallet providers. The process took years for smaller protocol changes like SegWit or the Beacon Chain merge.

There are no government requirements forcing any blockchain to adopt post-quantum cryptography. Any transition would depend on decisions by the communities that run each network. Some projects, like the HBAR Foundation's Hedera, already use a hash-based signature scheme that resists quantum attacks. Others have published research roadmaps but no firm upgrade timelines.

The immediate priority for Bitcoin and Ethereum remains current network security and adoption. The quantum readiness bill does not change that. As the U.S. government builds infrastructure for a post-quantum world, blockchain networks face a growing expectation to show they have a plan for when the math changes.