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Title: Deterministic wallet as hash(seed+index) is that OK? Post by: Kazimir on August 22, 2014, 10:04:35 AM Would it be OK from a technical and security point of view, to have deterministic wallet like this:
1. Randomly generate one initial secret seed. For argument's sake let's say this has 'enough' entropy. 2. Generate private keys as hashes from this seed + a counter. 'Hash' could be SHA256 or SHA3-256 or a HMAC or preferably some 256-bit KDF. Other than the disadvantage of not having type 2 determinism (https://bitcointalk.org/index.php?topic=19137.0) (ability to generate subsequent addresses without having to generate their corresponding private keys first), is there anything bad, wrong, or flawed with this approach? Title: Re: Deterministic wallet as hash(seed+index) is that OK? Post by: dabura667 on August 22, 2014, 10:50:30 AM You just explained how hardened keys work in BIP32.
Yes, you can do this. |