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include delegation hash in mnemonic address generation #8

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include delegation hash in mnemonic address generation #8

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24 changes: 16 additions & 8 deletions src/cardano.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -63,19 +63,27 @@ pub fn derive_key_pair_from_mnemonic(mnemonic: &str, account: u32, index: u32) -
.derive(ed25519_bip32::DerivationScheme::V2, 0)
.derive(ed25519_bip32::DerivationScheme::V2, index)
.extended_secret_key();
// stake key 1852'/1815'/<account>'/2/<index>
let stake_xprv = &xprv
.derive(ed25519_bip32::DerivationScheme::V2, harden_index(1852))
.derive(ed25519_bip32::DerivationScheme::V2, harden_index(1815))
.derive(ed25519_bip32::DerivationScheme::V2, harden_index(account))
.derive(ed25519_bip32::DerivationScheme::V2, 2)
.derive(ed25519_bip32::DerivationScheme::V2, index)
.extended_secret_key();
unsafe {
let sk = SecretKeyExtended::from_bytes_unchecked(*pay_xprv);
let vk = sk.public_key();
let pay_priv = SecretKeyExtended::from_bytes_unchecked(*pay_xprv);
let pay_pub = pay_priv.public_key();
let stake_pub = SecretKeyExtended::from_bytes_unchecked(*stake_xprv).public_key();

// Cardano (Shelley) address derivation
let addr = ShelleyAddress::new(
Network::Mainnet, // Assuming Mainnet environment
ShelleyPaymentPart::key_hash(vk.compute_hash()),
ShelleyDelegationPart::Null
Network::Mainnet,
ShelleyPaymentPart::key_hash(pay_pub.compute_hash()),
ShelleyDelegationPart::key_hash(stake_pub.compute_hash())
);
let sk_flex: FlexibleSecretKey = FlexibleSecretKey::Extended(sk);
let sk_flex: FlexibleSecretKey = FlexibleSecretKey::Extended(pay_priv);

(sk_flex, vk, addr)
(sk_flex, pay_pub, addr)
}

}
Expand Down