Unify keys

libtonode-tests/tests/concrete.rs

@@ -15,6 +15,7 @@ use zingolib::testutils::lightclient::from_inputs;
 use zingolib::testutils::{build_fvk_client, increase_height_and_wait_for_client, scenarios};
 use zingolib::utils::conversion::address_from_str;
 use zingolib::wallet::data::summaries::TransactionSummaryInterface;
+use zingolib::wallet::keys::unified::UnifiedKeyStore;
 use zingolib::wallet::propose::ProposeSendError;
 use zingolib::{check_client_balances, get_base_address_macro, get_otd, validate_otds};
 
@@ -69,15 +70,18 @@ fn check_view_capability_bounds(
     sent_t_value: Option<u64>,
     notes: &JsonValue,
 ) {
+    let UnifiedKeyStore::View(ufvk) = watch_wc.unified_key_store() else {
+        panic!("should be viewing key!")
+    };
     //Orchard
     if !fvks.contains(&ovk) {
-        assert!(!watch_wc.orchard.can_view());
+        assert!(ufvk.orchard().is_none());
         assert_eq!(balance.orchard_balance, None);
         assert_eq!(balance.verified_orchard_balance, None);
         assert_eq!(balance.unverified_orchard_balance, None);
         assert_eq!(notes["unspent_orchard_notes"].members().count(), 0);
     } else {
-        assert!(watch_wc.orchard.can_view());
+        assert!(ufvk.orchard().is_some());
         assert_eq!(balance.orchard_balance, sent_o_value);
         assert_eq!(balance.verified_orchard_balance, sent_o_value);
         assert_eq!(balance.unverified_orchard_balance, Some(0));
@@ -87,24 +91,24 @@ fn check_view_capability_bounds(
     }
     //Sapling
     if !fvks.contains(&svk) {
-        assert!(!watch_wc.sapling.can_view());
+        assert!(ufvk.sapling().is_none());
         assert_eq!(balance.sapling_balance, None);
         assert_eq!(balance.verified_sapling_balance, None);
         assert_eq!(balance.unverified_sapling_balance, None);
         assert_eq!(notes["unspent_sapling_notes"].members().count(), 0);
     } else {
-        assert!(watch_wc.sapling.can_view());
+        assert!(ufvk.sapling().is_some());
         assert_eq!(balance.sapling_balance, sent_s_value);
         assert_eq!(balance.verified_sapling_balance, sent_s_value);
         assert_eq!(balance.unverified_sapling_balance, Some(0));
         assert_eq!(notes["unspent_sapling_notes"].members().count(), 1);
     }
     if !fvks.contains(&tvk) {
-        assert!(!watch_wc.transparent.can_view());
+        assert!(ufvk.transparent().is_none());
         assert_eq!(balance.transparent_balance, None);
         assert_eq!(notes["utxos"].members().count(), 0);
     } else {
-        assert!(watch_wc.transparent.can_view());
+        assert!(ufvk.transparent().is_some());
         assert_eq!(balance.transparent_balance, sent_t_value);
         assert_eq!(notes["utxos"].members().count(), 1);
     }

zingolib/Cargo.toml

@@ -36,6 +36,8 @@ zcash_proofs = { workspace = true }
 zip32.workspace = true
 
 bip0039.workspace = true
+bip32 = { version = "0.5", default-features = false, features = ["secp256k1-ffi"] }
+bs58 = { version = "0.5", features = ["check"] }
 
 append-only-vec = { workspace = true }
 base58 = { workspace = true }

zingolib/src/blaze/trial_decryptions.rs

@@ -89,10 +89,12 @@ impl TrialDecryptions {
             let mut workers = FuturesUnordered::new();
             let mut cbs = vec![];
 
-            let sapling_ivk = sapling_crypto::zip32::DiversifiableFullViewingKey::try_from(&*wc)
-                .ok()
-                .map(|key| key.derive_ivk());
-            let orchard_ivk = orchard::keys::FullViewingKey::try_from(&*wc)
+            let sapling_ivk = sapling_crypto::zip32::DiversifiableFullViewingKey::try_from(
+                wc.unified_key_store(),
+            )
+            .ok()
+            .map(|key| key.derive_ivk());
+            let orchard_ivk = orchard::keys::FullViewingKey::try_from(wc.unified_key_store())
                 .ok()
                 .map(|key| key.derive_ivk());
 
@@ -315,7 +317,7 @@ impl TrialDecryptions {
                     let config = config.clone();
 
                     workers.push(tokio::spawn(async move {
-                        let Ok(fvk) = D::wc_to_fvk(&wc) else {
+                        let Ok(fvk) = D::unified_key_store_to_fvk(wc.unified_key_store()) else {
                             // skip any scanning if the wallet doesn't have viewing capability
                             return Ok::<_, String>(());
                         };
@@ -450,7 +452,7 @@ where
                         transaction_id,
                         Some(output_index),
                         position + i as u64,
-                        &D::wc_to_fvk(wc).unwrap(),
+                        &D::unified_key_store_to_fvk(wc.unified_key_store()).unwrap(),
                     )?;
                 }
                 nodes_retention.push((node, retention));

zingolib/src/commands.rs

@@ -2,6 +2,7 @@
 //! upgrade-or-replace
 
 use crate::data::proposal;
+use crate::wallet::keys::unified::UnifiedKeyStore;
 use crate::wallet::MemoDownloadOption;
 use crate::{lightclient::LightClient, wallet};
 use indoc::indoc;
@@ -13,7 +14,7 @@ use std::str::FromStr;
 use tokio::runtime::Runtime;
 use zcash_address::unified::{Container, Encoding, Ufvk};
 use zcash_keys::address::Address;
-use zcash_primitives::consensus::Parameters;
+use zcash_keys::keys::UnifiedFullViewingKey;
 use zcash_primitives::transaction::components::amount::NonNegativeAmount;
 use zcash_primitives::transaction::fees::zip317::MINIMUM_FEE;
 
@@ -134,16 +135,36 @@ impl Command for WalletKindCommand {
     fn exec(&self, _args: &[&str], lightclient: &LightClient) -> String {
         RT.block_on(async move {
             if lightclient.do_seed_phrase().await.is_ok() {
-                object! {"kind" => "Seeded"}.pretty(4)
-            } else {
-                let capability = lightclient.wallet.wallet_capability();
-                object! {
-                    "kind" => "Loaded from key",
-                    "transparent" => capability.transparent.kind_str(),
-                    "sapling" => capability.sapling.kind_str(),
-                    "orchard" => capability.orchard.kind_str(),
+                object! {"kind" => "Loaded from seed phrase",
+                        "transparent" => true,
+                        "sapling" => true,
+                        "orchard" => true,
                 }
                 .pretty(4)
+            } else {
+                match lightclient.wallet.wallet_capability().unified_key_store() {
+                    UnifiedKeyStore::Spend(_) => object! {
+                        "kind" => "Loaded from unified spending key",
+                        "transparent" => true,
+                        "sapling" => true,
+                        "orchard" => true,
+                    }
+                    .pretty(4),
+                    UnifiedKeyStore::View(ufvk) => object! {
+                        "kind" => "Loaded from unified full viewing key",
+                        "transparent" => ufvk.transparent().is_some(),
+                        "sapling" => ufvk.sapling().is_some(),
+                        "orchard" => ufvk.orchard().is_some(),
+                    }
+                    .pretty(4),
+                    UnifiedKeyStore::Empty => object! {
+                        "kind" => "No keys found",
+                        "transparent" => false,
+                        "sapling" => false,
+                        "orchard" => false,
+                    }
+                    .pretty(4),
+                }
             }
         })
     }
@@ -690,18 +711,20 @@ impl Command for ExportUfvkCommand {
     }
 
     fn exec(&self, _args: &[&str], lightclient: &LightClient) -> String {
-        let ufvk_res = lightclient.wallet.transaction_context.key.ufvk();
-        match ufvk_res {
-            Ok(ufvk) => {
-                use zcash_address::unified::Encoding as _;
-                object! {
-                    "ufvk" => ufvk.encode(&lightclient.config().chain.network_type()),
-                    "birthday" => RT.block_on(lightclient.wallet.get_birthday())
-                }
-                .pretty(2)
-            }
-            Err(e) => format!("Error: {e}"),
+        let ufvk: UnifiedFullViewingKey = match lightclient
+            .wallet
+            .wallet_capability()
+            .unified_key_store()
+            .try_into()
+        {
+            Ok(ufvk) => ufvk,
+            Err(e) => return e.to_string(),
+        };
+        object! {
+            "ufvk" => ufvk.encode(&lightclient.config().chain),
+            "birthday" => RT.block_on(lightclient.wallet.get_birthday())
         }
+        .pretty(2)
     }
 }
 

zingolib/src/lightclient.rs

@@ -474,7 +474,7 @@ impl LightClient {
         let new_address = self
             .wallet
             .wallet_capability()
-            .new_address(desired_receivers)?;
+            .new_address(desired_receivers, false)?;
 
         // self.save_internal_rust().await?;
 

zingolib/src/testutils.rs

@@ -21,7 +21,7 @@ use std::sync::atomic::AtomicBool;
 use std::sync::Arc;
 use std::time::Duration;
 use tokio::task::JoinHandle;
-use zcash_address::unified::{Fvk, Ufvk};
+use zcash_address::unified::Fvk;
 
 use crate::config::ZingoConfig;
 use crate::lightclient::LightClient;
@@ -46,31 +46,27 @@ pub mod regtest;
 
 /// TODO: Add Doc Comment Here!
 pub fn build_fvks_from_wallet_capability(wallet_capability: &WalletCapability) -> [Fvk; 3] {
-    let o_fvk = Fvk::Orchard(
-        orchard::keys::FullViewingKey::try_from(wallet_capability)
-            .unwrap()
-            .to_bytes(),
-    );
-    let s_fvk = Fvk::Sapling(
-        zcash_client_backend::keys::sapling::DiversifiableFullViewingKey::try_from(
-            wallet_capability,
-        )
-        .unwrap()
-        .to_bytes(),
-    );
-    let mut t_fvk_bytes = [0u8; 65];
-    let t_ext_pk: crate::wallet::keys::extended_transparent::ExtendedPubKey =
-        (wallet_capability).try_into().unwrap();
-    t_fvk_bytes[0..32].copy_from_slice(&t_ext_pk.chain_code[..]);
-    t_fvk_bytes[32..65].copy_from_slice(&t_ext_pk.public_key.serialize()[..]);
-    let t_fvk = Fvk::P2pkh(t_fvk_bytes);
-    [o_fvk, s_fvk, t_fvk]
+    let orchard_vk: orchard::keys::FullViewingKey =
+        wallet_capability.unified_key_store().try_into().unwrap();
+    let sapling_vk: sapling_crypto::zip32::DiversifiableFullViewingKey =
+        wallet_capability.unified_key_store().try_into().unwrap();
+    let transparent_vk: zcash_primitives::legacy::keys::AccountPubKey =
+        wallet_capability.unified_key_store().try_into().unwrap();
+
+    let mut transparent_vk_bytes = [0u8; 65];
+    transparent_vk_bytes.copy_from_slice(&transparent_vk.serialize());
+
+    [
+        Fvk::Orchard(orchard_vk.to_bytes()),
+        Fvk::Sapling(sapling_vk.to_bytes()),
+        Fvk::P2pkh(transparent_vk_bytes),
+    ]
 }
 
 /// TODO: Add Doc Comment Here!
 pub async fn build_fvk_client(fvks: &[&Fvk], zingoconfig: &ZingoConfig) -> LightClient {
     let ufvk = zcash_address::unified::Encoding::encode(
-        &<Ufvk as zcash_address::unified::Encoding>::try_from_items(
+        &<zcash_address::unified::Ufvk as zcash_address::unified::Encoding>::try_from_items(
             fvks.iter().copied().cloned().collect(),
         )
         .unwrap(),
@@ -80,14 +76,6 @@ pub async fn build_fvk_client(fvks: &[&Fvk], zingoconfig: &ZingoConfig) -> Light
         .await
         .unwrap()
 }
-
-/// Converts a Lightclient with spending capability to a Lightclient with only viewing capability
-pub async fn sk_client_to_fvk_client(client: &LightClient) -> LightClient {
-    let [o_fvk, s_fvk, t_fvk] =
-        build_fvks_from_wallet_capability(&client.wallet.wallet_capability().clone());
-    build_fvk_client(&[&o_fvk, &s_fvk, &t_fvk], client.config()).await
-}
-
 async fn get_synced_wallet_height(client: &LightClient) -> Result<u32, String> {
     client.do_sync(true).await?;
     Ok(client

zingolib/src/wallet.rs

@@ -3,7 +3,9 @@
 //! TODO: Add Mod Description Here
 
 use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt};
+use error::KeyError;
 use getset::{Getters, MutGetters};
+use zcash_keys::keys::UnifiedFullViewingKey;
 #[cfg(feature = "sync")]
 use zcash_primitives::consensus::BlockHeight;
 use zcash_primitives::memo::Memo;
@@ -12,8 +14,6 @@ use log::{info, warn};
 use rand::rngs::OsRng;
 use rand::Rng;
 
-use sapling_crypto::zip32::DiversifiableFullViewingKey;
-
 #[cfg(feature = "sync")]
 use zingo_sync::{
     primitives::{NullifierMap, SyncState, WalletBlock},
@@ -35,7 +35,6 @@ use crate::config::ZingoConfig;
 use zcash_client_backend::proto::service::TreeState;
 use zcash_encoding::Optional;
 
-use self::keys::unified::Fvk as _;
 use self::keys::unified::WalletCapability;
 
 use self::{
@@ -268,10 +267,18 @@ impl LightWallet {
 
     ///TODO: Make this work for orchard too
     pub async fn decrypt_message(&self, enc: Vec<u8>) -> Result<Message, String> {
-        let sapling_ivk = DiversifiableFullViewingKey::try_from(&*self.wallet_capability())?
-            .derive_ivk::<keys::unified::External>();
+        let ufvk: UnifiedFullViewingKey =
+            match self.wallet_capability().unified_key_store().try_into() {
+                Ok(ufvk) => ufvk,
+                Err(e) => return Err(e.to_string()),
+            };
+        let sapling_ivk = if let Some(ivk) = ufvk.sapling() {
+            ivk.to_external_ivk().prepare()
+        } else {
+            return Err(KeyError::NoViewCapability.to_string());
+        };
 
-        if let Ok(msg) = Message::decrypt(&enc, &sapling_ivk.ivk) {
+        if let Ok(msg) = Message::decrypt(&enc, &sapling_ivk) {
             // If decryption succeeded for this IVK, return the decrypted memo and the matched address
             return Ok(msg);
         }
@@ -367,13 +374,13 @@ impl LightWallet {
             }
         };
 
-        if let Err(e) = wc.new_address(wc.can_view()) {
+        if let Err(e) = wc.new_address(wc.can_view(), false) {
             return Err(io::Error::new(
                 io::ErrorKind::InvalidData,
                 format!("could not create initial address: {e}"),
             ));
         };
-        let transaction_metadata_set = if wc.can_spend_from_all_pools() {
+        let transaction_metadata_set = if wc.unified_key_store().is_spending_key() {
             Arc::new(RwLock::new(TxMap::new_with_witness_trees(
                 wc.transparent_child_addresses().clone(),
             )))