Adam Back warns against quantum computers "hacking Bitcoin": recommends using SLH-DSA to integrate Taproot

In the face of the potential threat of quantum computing to Bitcoin's cryptographic security, Adam Back, CEO of Blockstream, has advocated the adoption of NIST's standardized SLH-DSA signature specification to strengthen Bitcoin's long-term defenses. (Synopsis: Quantum computers may reveal "Satoshi footprints"? Adam Back: Let the sleeping million bitcoins speak) (Background supplement: Vitalik The current situation of the coin circle: Cryptocurrencies have deviated from the fields of cryptography and information security, which is a failure) The development of quantum computing (Quantum Computing) is unexpected, and the threat to current encryption standards is growing, Bitcoin (BTC) The current elliptic curve digital signature algorithm (Elliptic Curve Digital Signature Algorithm, ECDSA) is also in the range. Raised the crypto community's concerns about Bitcoin's long-term security. Bitcoin industry pioneer Adam Back today released a post recommending the SLH-DSA signature specification. The following article involves cryptography, and those who are interested can find more information to see, which is very interesting. FIPS 205: SLH-DSA. best PQ secure signature candidate for the moment IMO. signature size a bit big, but if we want to stop premature quantum FUD, make a new address format with a Schnorr taproot, and a SLH-DSA tapleaf. QED. future work: signature aggreGate SLH_DSA using STARKs. — Adam Back (@adam3us) June 3, 2025 NIST Standardization Scheme The powerful computing power of quantum computing can theoretically crack cryptographic algorithms such as ECDSA, which rely on large number decomposition or discrete logarithmic problems, which poses a fundamental security challenge to digital assets such as Bitcoin that rely on such encryption technology. If the computing power is large enough, it may unravel the block and destroy the security of the chain. Adam Back, CEO of Blockstream, recommended the (National Institute of Standards and Technology, NIST) a standardized SLH-DSA in the FIPS 205 document, for this future threat (Stateless Hash-Based Digital Signature Algorithm) as the most suitable quantum-resistant signature scheme at present. Blockstream is not only talking, but also actually laying out, and is recently hiring applied cryptologists to focus on post-quantum security research on Bitcoin and combat the future of quantum computers. SLH-DSA is further elaborated in conjunction with Schnorr Taproot Adam Back, who proposes to combine SLH-DSA with Bitcoin's existing Schnorr Taproot functionality. The Taproot upgrade has brought a more efficient and private way to transact Bitcoin and increased script flexibility. By integrating the quantum-resistant signature mechanism into this framework, it is expected to achieve protection against quantum attacks without significantly changing the Bitcoin Core protocol. SLH-DSA is a stateless hash signature algorithm whose security is based on well-studied hash functions, rather than mathematical puzzles currently threatened by quantum computing. NIST's standardization means that the algorithm has been rigorously vetted and evaluated to protect the functionality of critical infrastructure. Related reports Citibank Stablecoin Research Report" Digital dollar, cryptopunk to government bank Vitalik The current situation of the coin circle: cryptocurrencies have deviated from the field of cryptography and information security, which is a failure "Adam Back anti-quantum computer "cracks Bitcoin": It is recommended to integrate Taproot with SLH-DSA" This article was first published in BlockTempo's "Dynamic Trend - The Most Influential Blockchain News Media".