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5 entries
Which Bitcoin assets are at risk from a cryptographically relevant quantum computer, and what the timeline and migration debate around post-quantum cryptography looks like.
Blockstream CEO Adam Back stated Bitcoin faces no quantum computing threat for ~20–40 years, pointing to NIST post-quantum signatures like SLH-DSA that Bitcoin can adopt before threats materialize.
Mike Hearn points Satoshi to a forum discussion about the security of the secp256k1 curve, noting Hal Finney's concerns about its risk profile.
Satoshi sends coins back and explains why EC-DSA cannot encrypt messages like RSA, preventing transaction comments.
How Bitcoin uses elliptic-curve keys, digital signatures, hash functions, and deterministic derivation to secure ownership without trusted third parties.