On Tuesday, January 19, 2021 4:23 PM, nakagat <naka...@gmail.com> wrote:
> Dear. Pieter, > > My idea is exactly what you wrote. > > However, I don't think it is the same as "checksum = hash (hrp, data)". No, it is not the same. But it has the same error-detection properties as just a hash. Hash-based checksums aren't bad, but: * The BCH based checksum that Bech32 uses is better at detecting certain subsets of errors than a hash can be. Once you add in a hash you irrevocably lose these properties. * If we wanted a checksum with error detection properties that are equivalent to a hash, we should just use a hash like Base58Check did. However, that's not the goal of Bech32/Bech32m. If this isn't clear, I'm afraid I don't know how to continue discussing this. We can take if off this list, if you want. Cheers, -- Pieter _______________________________________________ bitcoin-dev mailing list bitcoin-dev@lists.linuxfoundation.org https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev
