CIP1852 - HD Wallets for Cardano #33
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CIP1852/README.md
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| Using `1852'` as the purpose field, we defined the following derivation path | ||
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| m / purpose' / coin_type' / account' / chain / address_index |
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I've come to call the last path index simply because I find the word "address" quite confusing since it designate keys, and in some cases, the relation to an address is not direct.
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@SebastienGllmt dir structure 🙏 |
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| ### Derivation style | ||
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| Cardano does not use [BIP32](https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki) but actually uses [BIP32-Ed25519](https://cardanolaunch.com/assets/Ed25519_BIP.pdf). The `-Ed25519` suffix is often dropped in practice (ex: we say the Byron release of Cardano supports [BIP44](https://github.com/bitcoin/bips/blob/master/bip-0044.mediawiki) but in reality this is BIP44-Ed25519). |
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https://cardanolaunch.com/assets/Ed25519_BIP.pdf is a lost page - do we have a different link we can use?
Should we use https://ieeexplore.ieee.org/document/7966967 ?
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I don't know if there's anywhere to get the PDF without having to pay or creating an account. The old website was hosted by the CF I think, so maybe they have the PDF hosted on a different URL now? Maybe it can be uploaded as part of the IOHK library instead?
This is a port of input-output-hk/implementation-decisions#18 which was originally written for Jormungandr. This version of the document is for Haskell Shelley and also uses the CIP document structure
This is a slight awkward CIP because it's called CIP1852 despite the fact we definitely don't have 1852 CIPs. The reason this name was chosen is because the CIP process didn't exist at the time this document was written (so there was no way to know which number to use), so instead I just picked the year Ada Lovelace died (to match the fact we used 1815 for her date of birth in the cointype field). This matches the fact that in Bitcoin, the
purposederivation index matches the BIP number for the proposal that describes it.