Timeline for Is there a simpler form of BIP32-like key derivation?
Current License: CC BY-SA 4.0
5 events
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| Jul 4, 2020 at 8:47 | comment | added | fadedbee |
Is parentPrivKey+index % N the private key for parentPubKey | index? (I cannot see how the unreversable SHA256 can help here at all, but that may well be my lack of knowledge.)
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| Jul 4, 2020 at 8:35 | comment | added | Coding Enthusiast |
It is a very very weak way of deriving child private keys from an initial entropy. If deriving pubkey in a weak way is desired then a similar scheme to BIP-32 for non-hardened children could be used to compute SHA256(parentPubKey | index) where child private key is the parent+child % N
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| Jul 4, 2020 at 6:10 | comment | added | fadedbee | @CodingEnthusiast Could you expand that into an answer, please? I can't understand how these keys relate to the parent keys, as they do not depend on them at all. In particular I want to derive child public keys from just a parent public key, knowing that the owner of the parent private key can derive the associated child private keys. | |
| Jul 3, 2020 at 16:10 | comment | added | Coding Enthusiast |
SHA256(entropy | index). 1st key = SHA256(entropy | 0x00000000), 2nd key = SHA256(entropy | 0x00000001),...
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| Jul 3, 2020 at 14:36 | history | asked | fadedbee | CC BY-SA 4.0 |