Wallet spending key derivation path
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@ -511,6 +511,9 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
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[[package]]
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name = "zcash_client_backend"
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version = "0.0.0"
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dependencies = [
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"zcash_primitives 0.0.0",
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]
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[[package]]
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name = "zcash_primitives"
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@ -7,3 +7,4 @@ authors = [
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edition = "2018"
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[dependencies]
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zcash_primitives = { path = "../zcash_primitives" }
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@ -0,0 +1,4 @@
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//! Zcash global and per-network constants.
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pub mod mainnet;
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pub mod testnet;
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@ -0,0 +1,4 @@
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/// The mainnet coin type for ZEC, as defined by [SLIP 44].
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///
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/// [SLIP 44]: https://github.com/satoshilabs/slips/blob/master/slip-0044.md
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pub const COIN_TYPE: u32 = 133;
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@ -0,0 +1,4 @@
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/// The testnet coin type for ZEC, as defined by [SLIP 44].
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///
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/// [SLIP 44]: https://github.com/satoshilabs/slips/blob/master/slip-0044.md
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pub const COIN_TYPE: u32 = 1;
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@ -0,0 +1,24 @@
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//! Helper functions for managing light client key material.
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use zcash_primitives::zip32::{ChildIndex, ExtendedSpendingKey};
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/// Derives the ZIP 32 [`ExtendedSpendingKey`] for a given coin type and account from the
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/// given seed.
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///
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/// # Examples
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///
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/// ```
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/// use zcash_client_backend::{constants::testnet::COIN_TYPE, keys::spending_key};
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///
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/// let extsk = spending_key(&[0; 32][..], COIN_TYPE, 0);
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/// ```
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pub fn spending_key(seed: &[u8], coin_type: u32, account: u32) -> ExtendedSpendingKey {
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ExtendedSpendingKey::from_path(
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&ExtendedSpendingKey::master(&seed),
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&[
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ChildIndex::Hardened(32),
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ChildIndex::Hardened(coin_type),
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ChildIndex::Hardened(account),
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],
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)
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}
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@ -3,10 +3,5 @@
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//! `zcash_client_backend` contains Rust structs and traits for creating shielded Zcash
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//! light clients.
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#[cfg(test)]
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mod tests {
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#[test]
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fn it_works() {
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assert_eq!(2 + 2, 4);
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}
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}
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pub mod constants;
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pub mod keys;
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