According to Blockstream CEO Adam Back, the threat of quantum computing to the Bitcoin network is more of a long-term concern than an immediate danger. As a renowned figure in the history of Bitcoin, with a background in cryptography dating back to the 1990s, Back emphasizes the need for the industry to proactively prepare for the potential risks.
In a recent interview with Bloomberg, Back pointed out that current quantum hardware lacks error correction, which aligns with the findings of two recent papers. These papers, one a technical analysis and the other a satirical piece, both conclude that quantum computing poses a long-term rather than a near-term risk to cryptographic systems. Back's central argument is not about dismissing the threat, but rather about responding to it in a timely manner.
He suggests that the industry should focus on preparing Bitcoin and providing users with the option to migrate their keys to a quantum-resistant format, allowing for a gradual transition over the course of a decade. This timeline is consistent with the development of post-quantum cryptography, which is transitioning from theoretical to practical implementation, particularly after the standardization of guidelines by NIST in late 2024.
Back highlights that preparation is already underway, with a dedicated research team of 20 people working on publishing papers, implementing solutions, and deploying them. He cites Blockstream's Liquid network as a key testing ground for these efforts.
The challenge for the industry lies in coordinating a smooth and orderly migration, rather than reacting to a sudden breakthrough, to mitigate the risk before it becomes critical.