Statements that an artificial intelligence model developed by Anthropic has found new attack techniques against some weakened encryption methods have again accelerated the discussions about Bitcoin’s post-quantum security preparations. The question at hand is whether artificial intelligence will be able to produce more advanced cryptanalysis methods before quantum computers break today’s signature systems.
The signature system used by Bitcoin is being monitored
The Bitcoin network relies on the ECDSA signature system to confirm transactions. Experts in the field of cryptography have long warned that sufficiently powerful quantum computers could one day overcome this structure. Therefore, developers are working on different options for transitioning to post-quantum signature schemes.
Prominent candidates include lattice-based cryptography. While Coin Center Executive Director Peter Van Valkenburgh commented on this discussion in a humorous way, he said that it could be “one of the most interesting scenarios” if advanced large language models push this mathematical basis before quantum computers after Bitcoin switches to a new quantum-resistant signature scheme.
Peter Van Valkenburgh pointed out that it is an ironic possibility that after Bitcoin transitioned to a quantum-resistant signature system, advanced artificial intelligence models will target the mathematics on which this structure is based before quantum computers.
What Anthropic’s findings show
Anthropic announced that its Claude Mythos Preview model developed previously unknown attacks against weakened versions of AES, one of the most widely used encryption standards in the world. This method accelerated the cracking of the weakened algorithm by 200 to 1,000 times, according to the company.
Anthropic also reported that the model produced an improved attack technique for HAWK, which is among the post-quantum signature schemes. Researchers state that these results show that edge artificial intelligence models are now approaching the level of being able to produce original cryptography research.
Mini dictionary: ECDSA is a cryptographic method used to generate digital signatures and plays a fundamental role in authorizing Bitcoin transactions. HAWK is one of the lesser-known experimental schemes being investigated among signature systems suitable for the post-quantum era.
Anthropic emphasized that modern AES applications remain secure, and the attacks found specifically target systems weakened for research purposes.
No immediate threat to existing systems
Researchers emphasize that despite the emerging findings, neither Bitcoin nor the internet encryption infrastructure used today is at direct risk in the near term. The attacks examined were aimed at weakened versions specifically for research, not production-level systems used in the real world.
However, if AI systems continue to increase the pace of mathematical discovery, security assessments of Bitcoin and other blockchain networks may need to take into account not only quantum computers but also the possibility of AI-assisted cryptanalysis. This could further expand the scope of post-quantum transition plans.
