Merge branch 'blindbit' into dev

src/device.rs

@@ -5,11 +5,12 @@ use tsify::Tsify;
 use wasm_bindgen::prelude::*;
 
 use sp_client::{
-    bitcoin::{absolute::Height, hashes::Hash, secp256k1::PublicKey, Amount, OutPoint, Transaction, XOnlyPublicKey}, 
-    silentpayments::{
-        utils::receiving::calculate_ecdh_shared_secret, SilentPaymentAddress
-    }, 
-    OutputSpendStatus, OwnedOutput, SpClient
+    bitcoin::{
+        absolute::Height, hashes::Hash, secp256k1::PublicKey, Amount, OutPoint, Transaction,
+        XOnlyPublicKey,
+    },
+    silentpayments::{utils::receiving::calculate_ecdh_shared_secret, SilentPaymentAddress},
+    OutputSpendStatus, OwnedOutput, SpClient,
 };
 
 use crate::{pcd::Member, silentpayments::SpWallet};
@@ -33,6 +34,10 @@ impl Device {
         }
     }
 
+    pub fn get_sp_wallet(&self) -> &SpWallet {
+        &self.sp_wallet
+    }
+
     pub fn get_sp_client(&self) -> &SpClient {
         self.sp_wallet.get_sp_client()
     }
@@ -46,24 +51,27 @@ impl Device {
     }
 
     pub fn get_balance(&self) -> Amount {
-        self.sp_wallet.get_outputs().values()
+        self.sp_wallet
+            .get_outputs()
+            .values()
             .filter(|output| output.spend_status == OutputSpendStatus::Unspent)
             .fold(Amount::ZERO, |acc, x| acc + x.amount)
     }
 
-    pub fn update_outputs_with_transaction(&mut self, tx: &Transaction, blockheight: u32, partial_tweak: PublicKey) -> anyhow::Result<HashMap<OutPoint, OwnedOutput>> {
+    pub fn update_outputs_with_transaction(
+        &mut self,
+        tx: &Transaction,
+        blockheight: u32,
+        partial_tweak: PublicKey,
+    ) -> anyhow::Result<HashMap<OutPoint, OwnedOutput>> {
         // First check that we haven't already scanned this transaction
         let txid = tx.txid();
 
         for i in 0..tx.output.len() {
-            if self
-                .sp_wallet
-                .get_outputs()
-                .contains_key(&OutPoint {
-                    txid,
-                    vout: i as u32,
-                })
-            {
+            if self.sp_wallet.get_outputs().contains_key(&OutPoint {
+                txid,
+                vout: i as u32,
+            }) {
                 return Err(anyhow::Error::msg("Transaction already scanned"));
             }
         }
@@ -124,7 +132,11 @@ impl Device {
         let txid = tx.txid();
         // update outputs that we own and that are spent
         for input in tx.input.iter() {
-            if let Some(prevout) = self.sp_wallet.get_mut_outputs().get_mut(&input.previous_output) {
+            if let Some(prevout) = self
+                .sp_wallet
+                .get_mut_outputs()
+                .get_mut(&input.previous_output)
+            {
                 // This is spent by this tx
                 prevout.spend_status = OutputSpendStatus::Spent(*txid.as_byte_array());
                 res.insert(input.previous_output, prevout.clone());

src/hash.rs

@@ -1,6 +1,8 @@
 use sp_client::bitcoin::{
-        consensus::{serialize, Encodable}, hashes::{sha256t_hash_newtype, Hash, HashEngine}, OutPoint
-    };
+    consensus::{serialize, Encodable},
+    hashes::{sha256t_hash_newtype, Hash, HashEngine},
+    OutPoint,
+};
 
 sha256t_hash_newtype! {
     pub struct AnkPcdTag = hash_str("4nk/Pcd");
@@ -14,7 +16,9 @@ impl AnkPcdHash {
         let mut eng = AnkPcdHash::engine();
         eng.input(value);
         eng.input(label);
-        serialize(outpoint).consensus_encode(&mut eng).expect("hash engine don't return errors");
+        serialize(outpoint)
+            .consensus_encode(&mut eng)
+            .expect("hash engine don't return errors");
         AnkPcdHash::from_engine(eng)
     }
 }

src/lib.rs

@@ -4,21 +4,21 @@ use std::sync::{Mutex, MutexGuard};
 
 pub use aes_gcm;
 pub use env_logger;
+pub use js_sys;
 pub use log;
 pub use rand;
-pub use sp_client;
 pub use serde;
 pub use serde_json;
 pub use serde_wasm_bindgen;
+pub use sp_client;
 pub use tsify;
 pub use wasm_bindgen;
-pub use js_sys;
 pub use zstd;
 
 pub mod crypto;
 pub mod device;
-pub mod hash;
 pub mod error;
+pub mod hash;
 pub mod network;
 pub mod pcd;
 pub mod prd;
@@ -27,6 +27,7 @@ pub mod secrets;
 pub mod serialization;
 pub mod signature;
 pub mod silentpayments;
+pub mod updates;
 
 pub const MAX_PRD_PAYLOAD_SIZE: usize = u16::MAX as usize; // 64KiB sounds reasonable for now
 
@@ -42,8 +43,8 @@ const ROLESLABEL: &str = "roles";
 #[derive(Debug, PartialEq, Eq)]
 pub enum SpecialRoles {
     Demiurge, // Only valid for the first state of a process
-    Pairing, // Special validation rules for pairing process
-    Apophis, // Users in this role have the power to destroy the process
+    Pairing,  // Special validation rules for pairing process
+    Apophis,  // Users in this role have the power to destroy the process
 }
 
 impl std::fmt::Display for SpecialRoles {
@@ -53,7 +54,7 @@ impl std::fmt::Display for SpecialRoles {
 }
 
 impl From<&SpecialRoles> for &str {
-    fn from(value: &SpecialRoles) -> Self {  
+    fn from(value: &SpecialRoles) -> Self {
         match value {
             SpecialRoles::Demiurge => DEMIURGE,
             SpecialRoles::Pairing => PAIRING,
@@ -113,10 +114,7 @@ impl<T: Debug> MutexExt<T> for Mutex<T> {
             Err(poison_error) => {
                 let data = poison_error.into_inner();
 
-                log::debug!(
-                    "Failed to lock Mutex (poisoned). Data was: {:?}",
-                    data
-                );
+                log::debug!("Failed to lock Mutex (poisoned). Data was: {:?}", data);
 
                 Err(anyhow::anyhow!("Failed to lock Mutex (poisoned)"))
             }

src/network.rs

@@ -18,6 +18,7 @@ pub enum AnkFlag {
     Cipher,
     Commit,
     Handshake,
+    Sync,
     Unknown,
 }
 
@@ -29,6 +30,7 @@ impl From<&str> for AnkFlag {
             "Cipher" => Self::Cipher,
             "Commit" => Self::Commit,
             "Handshake" => Self::Handshake,
+            "Sync" => Self::Sync,
             _ => Self::Unknown,
         }
     }
@@ -48,6 +50,7 @@ impl AnkFlag {
             2 => Self::Cipher,
             3 => Self::Commit,
             4 => Self::Handshake,
+            5 => Self::Sync,
             _ => Self::Unknown,
         }
     }
@@ -59,6 +62,7 @@ impl AnkFlag {
             Self::Cipher => "Cipher",
             Self::Commit => "Commit",
             Self::Handshake => "Handshake",
+            Self::Sync => "Sync",
             Self::Unknown => "Unknown",
         }
     }
@@ -70,7 +74,7 @@ impl AnkFlag {
 #[derive(Debug, PartialEq, Clone, Serialize, Deserialize, Tsify)]
 #[tsify(into_wasm_abi, from_wasm_abi)]
 pub struct CommitMessage {
-    pub process_id: OutPoint, 
+    pub process_id: OutPoint,
     pub pcd_commitment: PcdCommitments, // map of field <=> hash of the clear value
     pub roles: Roles,
     pub public_data: Pcd,
@@ -85,7 +89,7 @@ impl CommitMessage {
         pcd_commitment: PcdCommitments,
         roles: Roles,
         public_data: Pcd,
-        validation_tokens: Vec<Proof>
+        validation_tokens: Vec<Proof>,
     ) -> Self {
         Self {
             process_id,
@@ -164,14 +168,21 @@ pub struct HandshakeMessage {
     pub sp_address: String,
     pub peers_list: OutPointMemberMap,
     pub processes_list: OutPointProcessMap,
+    pub chain_tip: u32,
 }
 
 impl HandshakeMessage {
-    pub fn new(sp_address: String, peers_list: OutPointMemberMap, processes_list: OutPointProcessMap) -> Self {
+    pub fn new(
+        sp_address: String,
+        peers_list: OutPointMemberMap,
+        processes_list: OutPointProcessMap,
+        chain_tip: u32,
+    ) -> Self {
         Self {
             sp_address,
             peers_list,
             processes_list,
+            chain_tip,
         }
     }
 

src/pcd.rs

@@ -3,16 +3,14 @@ use rs_merkle::{algorithms::Sha256, MerkleTree};
 use serde::ser::SerializeStruct;
 use std::collections::btree_map::Keys;
 use std::collections::{BTreeMap, HashSet};
-use std::hash::{Hash as StdHash, Hasher};
 use std::fmt;
+use std::hash::{Hash as StdHash, Hasher};
 use std::io::Write;
 
 use serde::{Deserialize, Serialize};
 use serde_json::Value;
 use sp_client::{
-    bitcoin::{
-        hashes::Hash, secp256k1::PublicKey, OutPoint
-    },
+    bitcoin::{hashes::Hash, secp256k1::PublicKey, OutPoint},
     silentpayments::SilentPaymentAddress,
 };
 use tsify::Tsify;
@@ -21,8 +19,8 @@ use crate::hash::AnkPcdHash;
 use crate::serialization::OutPointMemberMap;
 use crate::ROLESLABEL;
 use crate::{
+    serialization::hex_array_btree,
     signature::{AnkHash, AnkValidationNoHash, AnkValidationYesHash, Proof},
-    serialization::hex_array_btree
 };
 
 pub const PCD_VERSION: u8 = 1;
@@ -30,40 +28,42 @@ pub(crate) const ZSTD_COMPRESSION_LEVEL: i32 = zstd::DEFAULT_COMPRESSION_LEVEL;
 
 pub trait PcdSerializable {
     fn serialize_to_pcd(&self) -> Result<Vec<u8>>;
-    fn deserialize_from_pcd(data: &[u8]) -> Result<Self> where Self: Sized;
+    fn deserialize_from_pcd(data: &[u8]) -> Result<Self>
+    where
+        Self: Sized;
 }
 
 impl PcdSerializable for serde_json::Value {
     fn serialize_to_pcd(&self) -> Result<Vec<u8>> {
         let mut compressed = Vec::new();
         let mut encoder = zstd::stream::Encoder::new(&mut compressed, ZSTD_COMPRESSION_LEVEL)?;
-        
+
         encoder.write_all(&[PCD_VERSION])?;
         encoder.write_all(&[DataType::Json as u8])?;
         serde_json::to_writer(&mut encoder, self)?;
         encoder.finish()?;
-        
+
         Ok(compressed)
     }
 
     fn deserialize_from_pcd(data: &[u8]) -> Result<Self> {
         let mut decompressed = Vec::new();
         zstd::stream::copy_decode(data, &mut decompressed)?;
-        
+
         if decompressed.len() < 3 {
             return Err(Error::msg("Invalid data: too short"));
         }
-        
+
         let version = decompressed[0];
         let data_type = DataType::try_from(decompressed[1])?;
-        
+
         match (version, data_type) {
             (PCD_VERSION, DataType::Json) => {
                 let json_bytes = &decompressed[2..];
                 let json_string = String::from_utf8(json_bytes.to_vec())?;
                 Ok(serde_json::from_str(&json_string)?)
-            },
-            _ => Err(Error::msg("Invalid version or data type"))
+            }
+            _ => Err(Error::msg("Invalid version or data type")),
         }
     }
 }
@@ -72,15 +72,15 @@ impl PcdSerializable for FileBlob {
     fn serialize_to_pcd(&self) -> Result<Vec<u8>> {
         let mut compressed = Vec::new();
         let mut encoder = zstd::stream::Encoder::new(&mut compressed, ZSTD_COMPRESSION_LEVEL)?;
-        
+
         encoder.write_all(&[PCD_VERSION])?;
         encoder.write_all(&[DataType::FileBlob as u8])?;
-        
+
         let type_len = self.r#type.as_bytes().len() as u8;
         encoder.write_all(&[type_len])?;
         encoder.write_all(self.r#type.as_bytes())?;
         encoder.write_all(&self.data)?;
-        
+
         encoder.finish()?;
         Ok(compressed)
     }
@@ -88,23 +88,26 @@ impl PcdSerializable for FileBlob {
     fn deserialize_from_pcd(data: &[u8]) -> Result<Self> {
         let mut decompressed = Vec::new();
         zstd::stream::copy_decode(data, &mut decompressed)?;
-        
+
         if decompressed.len() < 4 {
             return Err(Error::msg("Invalid data: too short"));
         }
-        
+
         let version = decompressed[0];
         let data_type = DataType::try_from(decompressed[1])?;
-        
+
         match (version, data_type) {
             (PCD_VERSION, DataType::FileBlob) => {
                 let type_len = decompressed[2] as usize;
-                let type_str = String::from_utf8(decompressed[3..3+type_len].to_vec())?;
-                let data = decompressed[3+type_len..].to_vec();
-                
-                Ok(FileBlob { r#type: type_str, data })
-            },
-            _ => Err(Error::msg("Invalid version or data type"))
+                let type_str = String::from_utf8(decompressed[3..3 + type_len].to_vec())?;
+                let data = decompressed[3 + type_len..].to_vec();
+
+                Ok(FileBlob {
+                    r#type: type_str,
+                    data,
+                })
+            }
+            _ => Err(Error::msg("Invalid version or data type")),
         }
     }
 }
@@ -186,7 +189,7 @@ impl StdHash for Member {
 }
 
 impl Member {
-    pub fn new(sp_addresses: Vec<SilentPaymentAddress>) -> Self{
+    pub fn new(sp_addresses: Vec<SilentPaymentAddress>) -> Self {
         let unique_addresses: HashSet<_> = sp_addresses.into_iter().collect();
 
         let res: Vec<String> = unique_addresses
@@ -209,11 +212,13 @@ impl Member {
     }
 
     pub fn get_address_for_key(&self, key: &PublicKey) -> Option<String> {
-        self.sp_addresses.iter().find(|a| {
-            let addr = SilentPaymentAddress::try_from(a.as_str()).unwrap();
-            addr.get_spend_key() == *key
-        })
-        .cloned()
+        self.sp_addresses
+            .iter()
+            .find(|a| {
+                let addr = SilentPaymentAddress::try_from(a.as_str()).unwrap();
+                addr.get_spend_key() == *key
+            })
+            .cloned()
     }
 }
 
@@ -233,13 +238,18 @@ impl IntoIterator for Pcd {
 impl TryFrom<Value> for Pcd {
     type Error = Error;
 
-    fn try_from(value: Value) -> Result<Self> { 
-        let as_object = value.as_object().ok_or_else(|| Error::msg("Pcd must be an object"))?;
-        let map: Result<BTreeMap<String, Vec<u8>>> = as_object.into_iter().map(|(key, value)| {
-            // Use the trait method instead of manual serialization
-            let compressed = value.serialize_to_pcd()?;
-            Ok((key.clone(), compressed))
-        }).collect();
+    fn try_from(value: Value) -> Result<Self> {
+        let as_object = value
+            .as_object()
+            .ok_or_else(|| Error::msg("Pcd must be an object"))?;
+        let map: Result<BTreeMap<String, Vec<u8>>> = as_object
+            .into_iter()
+            .map(|(key, value)| {
+                // Use the trait method instead of manual serialization
+                let compressed = value.serialize_to_pcd()?;
+                Ok((key.clone(), compressed))
+            })
+            .collect();
 
         Ok(Pcd(map?))
     }
@@ -248,12 +258,15 @@ impl TryFrom<Value> for Pcd {
 impl TryFrom<BTreeMap<String, FileBlob>> for Pcd {
     type Error = Error;
 
-    fn try_from(file_blob_map: BTreeMap<String, FileBlob>) -> Result<Self> { 
-        let map: Result<BTreeMap<String, Vec<u8>>> = file_blob_map.into_iter().map(|(key, value)| {
-            // Use the trait method instead of manual serialization
-            let compressed = value.serialize_to_pcd()?;
-            Ok((key, compressed))
-        }).collect();
+    fn try_from(file_blob_map: BTreeMap<String, FileBlob>) -> Result<Self> {
+        let map: Result<BTreeMap<String, Vec<u8>>> = file_blob_map
+            .into_iter()
+            .map(|(key, value)| {
+                // Use the trait method instead of manual serialization
+                let compressed = value.serialize_to_pcd()?;
+                Ok((key, compressed))
+            })
+            .collect();
 
         Ok(Pcd(map?))
     }
@@ -309,7 +322,11 @@ impl Pcd {
         }
     }
 
-    pub fn insert_serializable<T: PcdSerializable>(&mut self, key: String, value: &T) -> Result<Option<Vec<u8>>> {
+    pub fn insert_serializable<T: PcdSerializable>(
+        &mut self,
+        key: String,
+        value: &T,
+    ) -> Result<Option<Vec<u8>>> {
         let compressed = value.serialize_to_pcd()?;
         Ok(self.insert(key, compressed))
     }
@@ -317,20 +334,29 @@ impl Pcd {
 
 #[derive(Debug, Default, Clone, PartialEq, Serialize, Deserialize, Tsify)]
 #[tsify(into_wasm_abi, from_wasm_abi)]
-pub struct PcdCommitments(#[serde(with = "hex_array_btree")] #[tsify(type = "Record<string, string>")] BTreeMap<String, [u8; 32]>);
+pub struct PcdCommitments(
+    #[serde(with = "hex_array_btree")]
+    #[tsify(type = "Record<string, string>")]
+    BTreeMap<String, [u8; 32]>,
+);
 
 impl PcdCommitments {
     /// Creates a new commitments map with both permissioned and public data, + roles
     pub fn new(commited_in: &OutPoint, attributes: &Pcd, roles: &Roles) -> Result<Self> {
         let mut field2hash: BTreeMap<String, [u8; 32]> = BTreeMap::new();
         for (field, value) in attributes.iter() {
-            let tagged_hash = AnkPcdHash::from_pcd_value(value.as_slice(), field.as_bytes(), commited_in);
+            let tagged_hash =
+                AnkPcdHash::from_pcd_value(value.as_slice(), field.as_bytes(), commited_in);
             field2hash.insert(field.to_owned(), tagged_hash.to_byte_array());
         }
 
         if roles.len() > 0 {
             let roles_label = String::from(ROLESLABEL);
-            let roles_hash = AnkPcdHash::from_pcd_value(roles.to_bytes()?.as_slice(), roles_label.as_bytes(), commited_in);
+            let roles_hash = AnkPcdHash::from_pcd_value(
+                roles.to_bytes()?.as_slice(),
+                roles_label.as_bytes(),
+                commited_in,
+            );
 
             field2hash.insert(roles_label, roles_hash.to_byte_array());
         } // We should probably return an error if roles are empty
@@ -346,7 +372,12 @@ impl PcdCommitments {
         self.0.is_empty()
     }
 
-    pub fn update_with_value(&mut self, outpoint: &OutPoint, field: &str, new_value: &[u8]) -> Result<()> {
+    pub fn update_with_value(
+        &mut self,
+        outpoint: &OutPoint,
+        field: &str,
+        new_value: &[u8],
+    ) -> Result<()> {
         if let Some(old_hash) = self.get_mut(field) {
             // We hash the new_value
             let tagged_hash = AnkPcdHash::from_pcd_value(new_value, field.as_bytes(), outpoint);
@@ -363,11 +394,11 @@ impl PcdCommitments {
 
     pub fn get(&self, field: &str) -> Option<&[u8; 32]> {
         self.0.get(field)
-    } 
+    }
 
     pub fn get_mut(&mut self, field: &str) -> Option<&mut [u8; 32]> {
         self.0.get_mut(field)
-    } 
+    }
 
     pub fn iter(&self) -> std::collections::btree_map::Iter<'_, String, [u8; 32]> {
         self.0.iter()
@@ -383,10 +414,7 @@ impl PcdCommitments {
 
     /// Since BTreeMap keys order is deterministic, we can guarantee a consistent merkle tree
     pub fn create_merkle_tree(&self) -> Result<MerkleTree<Sha256>> {
-        let leaves: Vec<[u8; 32]> = self.0
-            .values()
-            .map(|hash| *hash)
-            .collect();
+        let leaves: Vec<[u8; 32]> = self.0.values().map(|hash| *hash).collect();
 
         let merkle_tree = MerkleTree::<Sha256>::from_leaves(leaves.as_slice());
 
@@ -447,7 +475,12 @@ impl ValidationRule {
             return Err(Error::msg("Field isn't part of this rule"));
         } else if members.is_empty() {
             return Err(Error::msg("Members list is empty"));
-        } else if self.quorum <= 0.0 || self.quorum > 1.0 || self.quorum.is_sign_negative() || self.quorum.is_nan() { // Just to be sure
+        } else if self.quorum <= 0.0
+            || self.quorum > 1.0
+            || self.quorum.is_sign_negative()
+            || self.quorum.is_nan()
+        {
+            // Just to be sure
             return Err(Error::msg("This rule is read only"));
         }
 
@@ -455,7 +488,9 @@ impl ValidationRule {
         let validating_members = members
             .iter()
             .filter(|member| {
-                if member.sp_addresses.is_empty() { return false }; // This can happen when a member in the rule wasn't found in the network
+                if member.sp_addresses.is_empty() {
+                    return false;
+                }; // This can happen when a member in the rule wasn't found in the network
                 let member_proofs: Vec<&Proof> = proofs
                     .iter()
                     .filter(|p| member.key_is_part_of_member(&p.get_key()))
@@ -466,7 +501,11 @@ impl ValidationRule {
             })
             .count();
 
-        if validating_members >= required_members { Ok(()) } else { Err(Error::msg("Not enough members to validate"))}
+        if validating_members >= required_members {
+            Ok(())
+        } else {
+            Err(Error::msg("Not enough members to validate"))
+        }
     }
 
     pub fn satisfy_min_sig_member(
@@ -540,22 +579,22 @@ impl RoleDefinition {
     ) -> Result<()> {
         let empty_member = Member::new(vec![]);
         if diff.iter().all(|field| {
-            self.validation_rules
-                .iter()
-                .any(|rule| {
-                    let members: Vec<&Member> = self.members.iter()
-                        .map(|outpoint| { 
-                            if let Some(member) = members_list.0.get(outpoint) {
-                                member
-                            } else {
-                                &empty_member
-                            }
-                        })
-                        .collect();
-                    rule.is_satisfied(field, new_state_merkle_root, proofs, &members).is_ok()
-                })
-        })
-        {
+            self.validation_rules.iter().any(|rule| {
+                let members: Vec<&Member> = self
+                    .members
+                    .iter()
+                    .map(|outpoint| {
+                        if let Some(member) = members_list.0.get(outpoint) {
+                            member
+                        } else {
+                            &empty_member
+                        }
+                    })
+                    .collect();
+                rule.is_satisfied(field, new_state_merkle_root, proofs, &members)
+                    .is_ok()
+            })
+        }) {
             Ok(())
         } else {
             Err(Error::msg("Failed to validate all rules"))
@@ -583,7 +622,6 @@ impl IntoIterator for Roles {
     }
 }
 
-
 impl Roles {
     pub fn new(roles: BTreeMap<String, RoleDefinition>) -> Self {
         Roles(roles)
@@ -592,7 +630,7 @@ impl Roles {
     pub fn is_empty(&self) -> bool {
         self.0.is_empty()
     }
-     
+
     pub fn to_bytes(&self) -> Result<Vec<u8>> {
         Ok(serde_json::to_vec(self)?)
     }
@@ -603,11 +641,11 @@ impl Roles {
 
     pub fn get(&self, key: &str) -> Option<&RoleDefinition> {
         self.0.get(key)
-    } 
+    }
 
     pub fn get_mut(&mut self, key: &str) -> Option<&mut RoleDefinition> {
         self.0.get_mut(key)
-    } 
+    }
 
     pub fn iter(&self) -> std::collections::btree_map::Iter<'_, String, RoleDefinition> {
         self.0.iter()
@@ -620,12 +658,12 @@ impl Roles {
 
 #[cfg(test)]
 mod tests {
-    use std::{collections::HashMap, str::FromStr};
     use serde_json::json;
     use sp_client::{
         bitcoin::{secp256k1::SecretKey, Network},
         SpClient, SpendKey,
     };
+    use std::{collections::HashMap, str::FromStr};
 
     use super::*;
     use crate::{
@@ -635,10 +673,8 @@ mod tests {
 
     fn create_alice_wallet() -> SpClient {
         SpClient::new(
-            SecretKey::from_str(
-                "a67fb6bf5639efd0aeb19c1c584dd658bceda87660ef1088d4a29d2e77846973",
-            )
-            .unwrap(),
+            SecretKey::from_str("a67fb6bf5639efd0aeb19c1c584dd658bceda87660ef1088d4a29d2e77846973")
+                .unwrap(),
             SpendKey::Secret(
                 SecretKey::from_str(
                     "a1e4e7947accf33567e716c9f4d186f26398660e36cf6d2e711af64b3518e65c",
@@ -652,10 +688,8 @@ mod tests {
 
     fn create_bob_wallet() -> SpClient {
         SpClient::new(
-            SecretKey::from_str(
-                "4d9f62b2340de3f0bafd671b78b19edcfded918c4106baefd34512f12f520e9b",
-            )
-            .unwrap(),
+            SecretKey::from_str("4d9f62b2340de3f0bafd671b78b19edcfded918c4106baefd34512f12f520e9b")
+                .unwrap(),
             SpendKey::Secret(
                 SecretKey::from_str(
                     "dafb99602721577997a6fe3da54f86fd113b1b58f0c9a04783d486f87083a32e",
@@ -672,13 +706,23 @@ mod tests {
         let bob_address = &addresses[1];
         HashMap::from([
             (
-                OutPoint::from_str("b2f105a9df436d16b99e46453b15a0ffc584d136ceda35c0baea28e7e3ade8be:0").unwrap(), 
-                Member::new(vec![SilentPaymentAddress::try_from(alice_address.as_str()).unwrap()])
+                OutPoint::from_str(
+                    "b2f105a9df436d16b99e46453b15a0ffc584d136ceda35c0baea28e7e3ade8be:0",
+                )
+                .unwrap(),
+                Member::new(vec![
+                    SilentPaymentAddress::try_from(alice_address.as_str()).unwrap()
+                ]),
             ),
             (
-                OutPoint::from_str("3cb9e3bf8ec72625c0347a665ab383fda9213d4544ff114ac800a9837b585897:0").unwrap(), 
-                Member::new(vec![SilentPaymentAddress::try_from(bob_address.as_str()).unwrap()])
-            )
+                OutPoint::from_str(
+                    "3cb9e3bf8ec72625c0347a665ab383fda9213d4544ff114ac800a9837b585897:0",
+                )
+                .unwrap(),
+                Member::new(vec![
+                    SilentPaymentAddress::try_from(bob_address.as_str()).unwrap()
+                ]),
+            ),
         ])
     }
 
@@ -727,16 +771,15 @@ mod tests {
         let public_data = BTreeMap::new();
         let roles = BTreeMap::new(); // roles are not necessary here, we can leave it empty
         let attributes = BTreeMap::from_iter(pcd.into_iter().chain(public_data));
-        let commitments = PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles)).unwrap();
+        let commitments =
+            PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles))
+                .unwrap();
         let new_state_merkle_root = commitments.create_merkle_tree().unwrap().root().unwrap();
 
         let validation_hash1 = AnkValidationYesHash::from_merkle_root(new_state_merkle_root);
         let validation_hash2 = AnkValidationNoHash::from_merkle_root(new_state_merkle_root);
 
-        let alice_spend_key: SecretKey = alice_wallet
-            .get_spend_key()
-            .try_into()
-            .unwrap();
+        let alice_spend_key: SecretKey = alice_wallet.get_spend_key().try_into().unwrap();
         let bob_spend_key: SecretKey = bob_wallet.get_spend_key().try_into().unwrap();
 
         let alice_proof = Proof::new(AnkHash::ValidationNo(validation_hash2), alice_spend_key);
@@ -744,7 +787,7 @@ mod tests {
 
         let members_list = get_members_map([
             alice_wallet.get_receiving_address().to_string(),
-            bob_wallet.get_receiving_address().to_string()
+            bob_wallet.get_receiving_address().to_string(),
         ]);
 
         let members: Vec<&Member> = members_list.values().collect();
@@ -788,16 +831,15 @@ mod tests {
         let public_data = BTreeMap::new();
         let roles = BTreeMap::new();
         let attributes = BTreeMap::from_iter(pcd.into_iter().chain(public_data));
-        let commitments = PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles)).unwrap();
+        let commitments =
+            PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles))
+                .unwrap();
         let new_state_merkle_root = commitments.create_merkle_tree().unwrap().root().unwrap();
 
         let validation_hash_yes = AnkValidationYesHash::from_merkle_root(new_state_merkle_root);
         let validation_hash_no = AnkValidationNoHash::from_merkle_root(new_state_merkle_root);
 
-        let alice_spend_key: SecretKey = alice_wallet
-            .get_spend_key()
-            .try_into()
-            .unwrap();
+        let alice_spend_key: SecretKey = alice_wallet.get_spend_key().try_into().unwrap();
         let bob_spend_key: SecretKey = bob_wallet.get_spend_key().try_into().unwrap();
 
         let alice_proof = Proof::new(AnkHash::ValidationNo(validation_hash_no), alice_spend_key);
@@ -807,19 +849,27 @@ mod tests {
 
         let members_list = get_members_map([
             alice_wallet.get_receiving_address().to_string(),
-            bob_wallet.get_receiving_address().to_string()
+            bob_wallet.get_receiving_address().to_string(),
         ]);
 
         let members: Vec<&Member> = members_list.values().collect();
 
         // Test with empty members list
-        let result =
-            validation_rule.is_satisfied(fields[0].as_str(), new_state_merkle_root, &proofs, &vec![]);
+        let result = validation_rule.is_satisfied(
+            fields[0].as_str(),
+            new_state_merkle_root,
+            &proofs,
+            &vec![],
+        );
         assert!(result.is_err());
 
         // Test with no matching field
-        let result =
-            validation_rule.is_satisfied("nonexistent_field", new_state_merkle_root, &proofs, &members);
+        let result = validation_rule.is_satisfied(
+            "nonexistent_field",
+            new_state_merkle_root,
+            &proofs,
+            &members,
+        );
         assert!(result.is_err());
     }
 
@@ -836,15 +886,14 @@ mod tests {
         let public_data = BTreeMap::new();
         let roles = BTreeMap::new();
         let attributes = BTreeMap::from_iter(pcd.into_iter().chain(public_data));
-        let commitments = PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles)).unwrap();
+        let commitments =
+            PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles))
+                .unwrap();
         let new_state_merkle_root = commitments.create_merkle_tree().unwrap().root().unwrap();
 
         let validation_hash = AnkValidationYesHash::from_merkle_root(new_state_merkle_root);
 
-        let alice_spend_key: SecretKey = alice_wallet
-            .get_spend_key()
-            .try_into()
-            .unwrap();
+        let alice_spend_key: SecretKey = alice_wallet.get_spend_key().try_into().unwrap();
 
         // Both proofs are signed by Alice
         let alice_proof_1 = Proof::new(AnkHash::ValidationYes(validation_hash), alice_spend_key);
@@ -854,14 +903,18 @@ mod tests {
 
         let members_list = get_members_map([
             alice_wallet.get_receiving_address().to_string(),
-            bob_wallet.get_receiving_address().to_string()
+            bob_wallet.get_receiving_address().to_string(),
         ]);
 
         let members: Vec<&Member> = members_list.values().collect();
 
         // Test case where both proofs are signed by Alice, but both Alice and Bob are passed as members
-        let result =
-            validation_rule.is_satisfied(fields[0].as_str(), new_state_merkle_root, &proofs, &members);
+        let result = validation_rule.is_satisfied(
+            fields[0].as_str(),
+            new_state_merkle_root,
+            &proofs,
+            &members,
+        );
         assert!(result.is_err());
     }
 
@@ -878,15 +931,14 @@ mod tests {
         let public_data = BTreeMap::new();
         let roles = BTreeMap::new();
         let attributes = BTreeMap::from_iter(pcd.into_iter().chain(public_data));
-        let commitments = PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles)).unwrap();
+        let commitments =
+            PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles))
+                .unwrap();
         let new_state_merkle_root = commitments.create_merkle_tree().unwrap().root().unwrap();
 
         let validation_hash = AnkValidationYesHash::from_merkle_root(new_state_merkle_root);
 
-        let alice_spend_key: SecretKey = alice_wallet
-            .get_spend_key()
-            .try_into()
-            .unwrap();
+        let alice_spend_key: SecretKey = alice_wallet.get_spend_key().try_into().unwrap();
 
         // Both proofs are signed by Alice
         let alice_proof_1 = Proof::new(AnkHash::ValidationYes(validation_hash), alice_spend_key);
@@ -896,14 +948,18 @@ mod tests {
 
         let members_list = get_members_map([
             alice_wallet.get_receiving_address().to_string(),
-            bob_wallet.get_receiving_address().to_string()
+            bob_wallet.get_receiving_address().to_string(),
         ]);
 
         let members: Vec<&Member> = members_list.values().collect();
 
         // Test case where quorum is 0.5, but Alice provides two proofs. This should fail since the quorum requires different members.
-        let result =
-            validation_rule.is_satisfied(fields[0].as_str(), new_state_merkle_root, &proofs, &members);
+        let result = validation_rule.is_satisfied(
+            fields[0].as_str(),
+            new_state_merkle_root,
+            &proofs,
+            &members,
+        );
         assert!(result.is_err());
     }
 
@@ -923,21 +979,23 @@ mod tests {
         let public_data = BTreeMap::new();
         let roles = BTreeMap::new();
         let attributes = BTreeMap::from_iter(pcd.into_iter().chain(public_data));
-        let commitments = PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles)).unwrap();
+        let commitments =
+            PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles))
+                .unwrap();
         let new_state_merkle_root = commitments.create_merkle_tree().unwrap().root().unwrap();
 
-        let alice_spend_key: SecretKey = alice_wallet
-            .get_spend_key()
-            .try_into()
-            .unwrap();
+        let alice_spend_key: SecretKey = alice_wallet.get_spend_key().try_into().unwrap();
 
         let proof = Proof::new(
-            AnkHash::ValidationYes(AnkValidationYesHash::from_merkle_root(new_state_merkle_root)),
+            AnkHash::ValidationYes(AnkValidationYesHash::from_merkle_root(
+                new_state_merkle_root,
+            )),
             alice_spend_key,
         );
         let proofs = vec![&proof];
 
-        let result = validation_rule.satisfy_min_sig_member(&member, new_state_merkle_root, &proofs);
+        let result =
+            validation_rule.satisfy_min_sig_member(&member, new_state_merkle_root, &proofs);
         assert!(result.is_ok()); // Example check - make more meaningful assertions based on real Proof and Member implementations
     }
 
@@ -971,15 +1029,14 @@ mod tests {
         let public_data = BTreeMap::new();
         let roles = BTreeMap::new();
         let attributes = BTreeMap::from_iter(pcd.into_iter().chain(public_data));
-        let commitments = PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles)).unwrap();
+        let commitments =
+            PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles))
+                .unwrap();
         let new_state_merkle_root = commitments.create_merkle_tree().unwrap().root().unwrap();
 
         let validation_hash = AnkValidationYesHash::from_merkle_root(new_state_merkle_root);
 
-        let alice_spend_key: SecretKey = alice_wallet
-            .get_spend_key()
-            .try_into()
-            .unwrap();
+        let alice_spend_key: SecretKey = alice_wallet.get_spend_key().try_into().unwrap();
         let bob_spend_key: SecretKey = bob_wallet.get_spend_key().try_into().unwrap();
 
         let alice_proof = Proof::new(AnkHash::ValidationYes(validation_hash), alice_spend_key);
@@ -987,19 +1044,31 @@ mod tests {
 
         let proofs = vec![alice_proof, bob_proof];
 
-        let modified_fields: Vec<String> = new_state.as_object().unwrap().iter().map(|(key, _)| key.clone()).collect();
+        let modified_fields: Vec<String> = new_state
+            .as_object()
+            .unwrap()
+            .iter()
+            .map(|(key, _)| key.clone())
+            .collect();
 
-        assert!(role_def.is_satisfied(modified_fields, new_state_merkle_root, &proofs, &OutPointMemberMap(members)).is_ok());
+        assert!(role_def
+            .is_satisfied(
+                modified_fields,
+                new_state_merkle_root,
+                &proofs,
+                &OutPointMemberMap(members)
+            )
+            .is_ok());
     }
 
     #[test]
     fn test_no_rule_satisfied() {
         let alice_wallet = create_alice_wallet();
         let bob_wallet = create_bob_wallet();
-        
+
         let members_list = get_members_map([
-            alice_wallet.get_receiving_address().to_string(), 
-            bob_wallet.get_receiving_address().to_string()
+            alice_wallet.get_receiving_address().to_string(),
+            bob_wallet.get_receiving_address().to_string(),
         ]);
 
         let fields = vec!["field1".to_string(), "field2".to_string()];
@@ -1023,16 +1092,15 @@ mod tests {
         let public_data = BTreeMap::new();
         let roles = BTreeMap::new();
         let attributes = BTreeMap::from_iter(pcd.into_iter().chain(public_data));
-        let commitments = PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles)).unwrap();
+        let commitments =
+            PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles))
+                .unwrap();
         let new_state_merkle_root = commitments.create_merkle_tree().unwrap().root().unwrap();
 
         // let validation_hash1 = AnkValidationYesHash::from_commitment(new_state_hash);
         let validation_hash = AnkValidationNoHash::from_merkle_root(new_state_merkle_root);
 
-        let alice_spend_key: SecretKey = alice_wallet
-            .get_spend_key()
-            .try_into()
-            .unwrap();
+        let alice_spend_key: SecretKey = alice_wallet.get_spend_key().try_into().unwrap();
         let bob_spend_key: SecretKey = bob_wallet.get_spend_key().try_into().unwrap();
 
         let alice_proof = Proof::new(AnkHash::ValidationNo(validation_hash), alice_spend_key);
@@ -1040,9 +1108,21 @@ mod tests {
 
         let proofs = vec![alice_proof, bob_proof];
 
-        let modified_fields: Vec<String> = new_state.as_object().unwrap().iter().map(|(key, _)| key.clone()).collect();
+        let modified_fields: Vec<String> = new_state
+            .as_object()
+            .unwrap()
+            .iter()
+            .map(|(key, _)| key.clone())
+            .collect();
 
-        assert!(role_def.is_satisfied(modified_fields, new_state_merkle_root, &proofs, &OutPointMemberMap(members_list)).is_err());
+        assert!(role_def
+            .is_satisfied(
+                modified_fields,
+                new_state_merkle_root,
+                &proofs,
+                &OutPointMemberMap(members_list)
+            )
+            .is_err());
     }
 
     #[test]
@@ -1076,16 +1156,15 @@ mod tests {
         let public_data = BTreeMap::new();
         let roles = BTreeMap::new();
         let attributes = BTreeMap::from_iter(pcd.into_iter().chain(public_data));
-        let commitments = PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles)).unwrap();
+        let commitments =
+            PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles))
+                .unwrap();
         let new_state_merkle_root = commitments.create_merkle_tree().unwrap().root().unwrap();
 
         let validation_hash = AnkValidationYesHash::from_merkle_root(new_state_merkle_root);
         // let validation_hash = AnkValidationNoHash::from_merkle_root(new_state_merkle_root);
 
-        let alice_spend_key: SecretKey = alice_wallet
-            .get_spend_key()
-            .try_into()
-            .unwrap();
+        let alice_spend_key: SecretKey = alice_wallet.get_spend_key().try_into().unwrap();
         let bob_spend_key: SecretKey = bob_wallet.get_spend_key().try_into().unwrap();
 
         let alice_proof = Proof::new(AnkHash::ValidationYes(validation_hash), alice_spend_key);
@@ -1093,9 +1172,21 @@ mod tests {
 
         let proofs = vec![alice_proof, bob_proof];
 
-        let modified_fields: Vec<String> = new_state.as_object().unwrap().iter().map(|(key, _)| key.clone()).collect();
+        let modified_fields: Vec<String> = new_state
+            .as_object()
+            .unwrap()
+            .iter()
+            .map(|(key, _)| key.clone())
+            .collect();
 
-        assert!(role_def.is_satisfied(modified_fields, new_state_merkle_root, &proofs, &OutPointMemberMap(members)).is_ok());
+        assert!(role_def
+            .is_satisfied(
+                modified_fields,
+                new_state_merkle_root,
+                &proofs,
+                &OutPointMemberMap(members)
+            )
+            .is_ok());
     }
 
     #[test]
@@ -1129,16 +1220,15 @@ mod tests {
         let public_data = BTreeMap::new();
         let roles = BTreeMap::new();
         let attributes = BTreeMap::from_iter(pcd.into_iter().chain(public_data));
-        let commitments = PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles)).unwrap();
+        let commitments =
+            PcdCommitments::new(&OutPoint::null(), &Pcd::new(attributes), &Roles::new(roles))
+                .unwrap();
         let new_state_merkle_root = commitments.create_merkle_tree().unwrap().root().unwrap();
 
         let validation_hash = AnkValidationYesHash::from_merkle_root(new_state_merkle_root);
         // let validation_hash = AnkValidationNoHash::from_merkle_root(new_state_merkle_root);
 
-        let alice_spend_key: SecretKey = alice_wallet
-            .get_spend_key()
-            .try_into()
-            .unwrap();
+        let alice_spend_key: SecretKey = alice_wallet.get_spend_key().try_into().unwrap();
         // let bob_spend_key: SecretKey = bob_wallet.get_client().get_spend_key().try_into().unwrap();
 
         let alice_proof = Proof::new(AnkHash::ValidationYes(validation_hash), alice_spend_key);
@@ -1146,9 +1236,21 @@ mod tests {
 
         let proofs = vec![alice_proof];
 
-        let modified_fields: Vec<String> = new_state.as_object().unwrap().iter().map(|(key, _)| key.clone()).collect();
+        let modified_fields: Vec<String> = new_state
+            .as_object()
+            .unwrap()
+            .iter()
+            .map(|(key, _)| key.clone())
+            .collect();
 
-        assert!(role_def.is_satisfied(modified_fields, new_state_merkle_root, &proofs, &OutPointMemberMap(members)).is_err());
+        assert!(role_def
+            .is_satisfied(
+                modified_fields,
+                new_state_merkle_root,
+                &proofs,
+                &OutPointMemberMap(members)
+            )
+            .is_err());
     }
 
     #[test]

src/prd.rs

@@ -22,12 +22,12 @@ pub enum PrdType {
     None,
     Connect,
     Message,
-    Update, // Update an existing process
-    List,   // request a list of items
-    Response, // Validate (or disagree) with a prd update
-    Confirm, // Confirm we received an update
+    Update,     // Update an existing process
+    List,       // request a list of items
+    Response,   // Validate (or disagree) with a prd update
+    Confirm,    // Confirm we received an update
     TxProposal, // Send a psbt asking for recipient signature
-    Request // asks for the prd update for some state,
+    Request,    // asks for the prd update for some state,
 }
 
 sha256t_hash_newtype! {
@@ -71,10 +71,18 @@ pub struct Prd {
 impl Prd {
     /// We answer to ack we received a transaction and got the shared_secret
     /// If validation_tokens is empty we put the proof into it and return it
-    /// If validation_tokens contains a valid proof signed by ourselves of empty prd, 
+    /// If validation_tokens contains a valid proof signed by ourselves of empty prd,
     /// we confirm the secret if necessary and don't return anything
-    pub fn new_connect(sender: Member, secret_hash: AnkMessageHash, previous_proof: Option<Proof>) -> Self {
-        let validation_tokens = if let Some(proof) = previous_proof { vec![proof] } else { vec![] };
+    pub fn new_connect(
+        sender: Member,
+        secret_hash: AnkMessageHash,
+        previous_proof: Option<Proof>,
+    ) -> Self {
+        let validation_tokens = if let Some(proof) = previous_proof {
+            vec![proof]
+        } else {
+            vec![]
+        };
         Self {
             prd_type: PrdType::Connect,
             process_id: OutPoint::null(),
@@ -159,16 +167,15 @@ impl Prd {
             let local_spend_key = local_address.get_spend_key();
             // If it's our own device key we abort
             if proof_key == local_spend_key {
-                return Err(anyhow::Error::msg("Proof signed by ourselves, we are parsing our own message"));
+                return Err(anyhow::Error::msg(
+                    "Proof signed by ourselves, we are parsing our own message",
+                ));
             }
             // take the spending keys in sender
             let addresses = prd.sender.get_addresses();
             let mut spend_keys: Vec<PublicKey> = vec![];
             for address in addresses {
-                spend_keys.push(
-                    <SilentPaymentAddress>::try_from(address)?
-                        .get_spend_key()
-                );
+                spend_keys.push(<SilentPaymentAddress>::try_from(address)?.get_spend_key());
             }
             // The key in proof must be one of the sender keys
             let mut known_key = false;

src/secrets.rs

@@ -1,20 +1,20 @@
-use anyhow::{Result, Error};
-use tsify::Tsify;
 use crate::aes_gcm::aead::{Aead, Payload};
 use crate::aes_gcm::Nonce;
+use crate::crypto::{Aes256Gcm, AnkSharedSecretHash, KeyInit, AAD};
 use crate::sp_client::bitcoin::hashes::Hash;
 use crate::sp_client::silentpayments::SilentPaymentAddress;
-use crate::crypto::{Aes256Gcm, AnkSharedSecretHash, KeyInit, AAD};
+use anyhow::{Error, Result};
 use serde::ser::SerializeStruct;
 use serde::{Deserialize, Deserializer, Serialize, Serializer};
 use std::collections::HashMap;
 use std::str::FromStr;
+use tsify::Tsify;
 
 #[derive(Debug, Clone, Default, PartialEq, Tsify)]
 #[tsify(into_wasm_abi)]
-pub struct SecretsStore{
+pub struct SecretsStore {
     shared_secrets: HashMap<SilentPaymentAddress, AnkSharedSecretHash>,
-    unconfirmed_secrets: Vec<AnkSharedSecretHash>
+    unconfirmed_secrets: Vec<AnkSharedSecretHash>,
 }
 
 impl Serialize for SecretsStore {
@@ -24,7 +24,7 @@ impl Serialize for SecretsStore {
     {
         let mut temp_map = HashMap::with_capacity(self.shared_secrets.len());
         for (key, value) in &self.shared_secrets {
-            let key_str = key.to_string(); 
+            let key_str = key.to_string();
             let value_str = value.to_string();
 
             temp_map.insert(key_str, value_str);
@@ -61,14 +61,16 @@ impl<'de> Deserialize<'de> for SecretsStore {
         let mut shared_secrets = HashMap::with_capacity(helper.shared_secrets.len());
         for (key_str, value_str) in helper.shared_secrets {
             let key = SilentPaymentAddress::try_from(key_str).map_err(serde::de::Error::custom)?; // Convert String to SilentPaymentAddress
-            let value = AnkSharedSecretHash::from_str(&value_str).map_err(serde::de::Error::custom)?; // Convert hex string back to Vec<u8>
+            let value =
+                AnkSharedSecretHash::from_str(&value_str).map_err(serde::de::Error::custom)?; // Convert hex string back to Vec<u8>
 
             shared_secrets.insert(key, value);
         }
 
         let mut unconfirmed_secrets = Vec::with_capacity(helper.unconfirmed_secrets.len());
         for secret_str in helper.unconfirmed_secrets {
-            let secret_bytes = AnkSharedSecretHash::from_str(&secret_str).map_err(serde::de::Error::custom)?;
+            let secret_bytes =
+                AnkSharedSecretHash::from_str(&secret_str).map_err(serde::de::Error::custom)?;
             unconfirmed_secrets.push(secret_bytes);
         }
 
@@ -81,9 +83,9 @@ impl<'de> Deserialize<'de> for SecretsStore {
 
 impl SecretsStore {
     pub fn new() -> Self {
-        Self { 
-            shared_secrets: HashMap::new(), 
-            unconfirmed_secrets: Vec::new() 
+        Self {
+            shared_secrets: HashMap::new(),
+            unconfirmed_secrets: Vec::new(),
         }
     }
 
@@ -92,11 +94,14 @@ impl SecretsStore {
     }
 
     /// Returns the previous secret for this address, if any
-    pub fn confirm_secret_for_address(&mut self, secret: AnkSharedSecretHash, address: SilentPaymentAddress) -> Option<AnkSharedSecretHash> {
-        if let Some(pos) = self.unconfirmed_secrets.iter()
-            .position(|s| *s == secret)
-        {
-            self.shared_secrets.insert(address, self.unconfirmed_secrets.swap_remove(pos))
+    pub fn confirm_secret_for_address(
+        &mut self,
+        secret: AnkSharedSecretHash,
+        address: SilentPaymentAddress,
+    ) -> Option<AnkSharedSecretHash> {
+        if let Some(pos) = self.unconfirmed_secrets.iter().position(|s| *s == secret) {
+            self.shared_secrets
+                .insert(address, self.unconfirmed_secrets.swap_remove(pos))
         } else {
             // We didn't know about that secret, just add it
             // TODO if we already had a secret for this address we just replace it for now
@@ -104,7 +109,10 @@ impl SecretsStore {
         }
     }
 
-    pub fn get_secret_for_address(&self, address: SilentPaymentAddress) -> Option<&AnkSharedSecretHash> {
+    pub fn get_secret_for_address(
+        &self,
+        address: SilentPaymentAddress,
+    ) -> Option<&AnkSharedSecretHash> {
         self.shared_secrets.get(&address)
     }
 
@@ -116,7 +124,10 @@ impl SecretsStore {
         self.unconfirmed_secrets.clone()
     }
 
-    pub fn remove_secret_for_address(&mut self, address: SilentPaymentAddress) -> Result<(SilentPaymentAddress, AnkSharedSecretHash)> {
+    pub fn remove_secret_for_address(
+        &mut self,
+        address: SilentPaymentAddress,
+    ) -> Result<(SilentPaymentAddress, AnkSharedSecretHash)> {
         if let Some(removed_secret) = self.shared_secrets.remove(&address) {
             return Ok((address, removed_secret));
         } else {

src/serialization.rs

@@ -1,10 +1,10 @@
-use serde::{de, Deserialize, Deserializer, Serialize, Serializer};
+use crate::{pcd::Member, process::Process};
 use serde::de::Error;
+use serde::{de, Deserialize, Deserializer, Serialize, Serializer};
 use sp_client::bitcoin::hex::{DisplayHex, FromHex};
 use sp_client::bitcoin::OutPoint;
-use tsify::Tsify;
 use std::collections::{BTreeMap, HashMap};
-use crate::{pcd::Member, process::Process};
+use tsify::Tsify;
 
 #[derive(Debug, Serialize, Deserialize, Tsify)]
 #[tsify(from_wasm_abi)]
@@ -41,23 +41,15 @@ pub mod members_map {
     use super::*;
     use crate::pcd::Member;
 
-    pub fn serialize<S>(
-        map: &HashMap<OutPoint, Member>,
-        serializer: S,
-    ) -> Result<S::Ok, S::Error>
+    pub fn serialize<S>(map: &HashMap<OutPoint, Member>, serializer: S) -> Result<S::Ok, S::Error>
     where
         S: Serializer,
     {
-        let map: HashMap<OutPoint, Member> = map
-            .iter()
-            .map(|(k, v)| (*k, v.to_owned()))
-            .collect();
+        let map: HashMap<OutPoint, Member> = map.iter().map(|(k, v)| (*k, v.to_owned())).collect();
         map.serialize(serializer)
     }
 
-    pub fn deserialize<'de, D>(
-        deserializer: D,
-    ) -> Result<HashMap<OutPoint, Member>, D::Error>
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<HashMap<OutPoint, Member>, D::Error>
     where
         D: Deserializer<'de>,
     {
@@ -71,10 +63,7 @@ pub mod outpoint_map {
     use super::*;
     use crate::process::Process;
 
-    pub fn serialize<S>(
-        map: &HashMap<OutPoint, Process>,
-        serializer: S,
-    ) -> Result<S::Ok, S::Error>
+    pub fn serialize<S>(map: &HashMap<OutPoint, Process>, serializer: S) -> Result<S::Ok, S::Error>
     where
         S: Serializer,
     {
@@ -88,9 +77,7 @@ pub mod outpoint_map {
         map.serialize(serializer)
     }
 
-    pub fn deserialize<'de, D>(
-        deserializer: D,
-    ) -> Result<HashMap<OutPoint, Process>, D::Error>
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<HashMap<OutPoint, Process>, D::Error>
     where
         D: Deserializer<'de>,
     {
@@ -101,9 +88,7 @@ pub mod outpoint_map {
         let result: Result<HashMap<OutPoint, Process>, D::Error> = map
             .into_iter()
             .map(|(k, v)| {
-                let outpoint = k
-                    .parse() 
-                    .map_err(serde::de::Error::custom)?;
+                let outpoint = k.parse().map_err(serde::de::Error::custom)?;
                 Ok((outpoint, v))
             })
             .collect();
@@ -118,10 +103,7 @@ pub mod hex_array_btree {
 
     // Serializes a BTreeMap<String, [u8; 32]> as a BTreeMap<String, String>
     // where the value is a hex-encoded string.
-    pub fn serialize<S>(
-        map: &BTreeMap<String, [u8; 32]>,
-        serializer: S,
-    ) -> Result<S::Ok, S::Error>
+    pub fn serialize<S>(map: &BTreeMap<String, [u8; 32]>, serializer: S) -> Result<S::Ok, S::Error>
     where
         S: Serializer,
     {
@@ -135,9 +117,7 @@ pub mod hex_array_btree {
 
     // Deserializes a BTreeMap<String, [u8; 32]> from a BTreeMap<String, String>
     // where the value is expected to be a hex-encoded string.
-    pub fn deserialize<'de, D>(
-        deserializer: D,
-    ) -> Result<BTreeMap<String, [u8; 32]>, D::Error>
+    pub fn deserialize<'de, D>(deserializer: D) -> Result<BTreeMap<String, [u8; 32]>, D::Error>
     where
         D: Deserializer<'de>,
     {

src/silentpayments.rs

@@ -3,13 +3,16 @@ use std::collections::HashMap;
 use anyhow::{Error, Result};
 use serde::{Deserialize, Serialize};
 use sp_client::bitcoin::absolute::Height;
+use sp_client::bitcoin::hashes::Hash;
 use sp_client::bitcoin::secp256k1::{PublicKey, SecretKey};
 use tsify::Tsify;
 
 use rand::{thread_rng, Rng};
-use sp_client::bitcoin::{Amount, OutPoint, Transaction, TxOut, XOnlyPublicKey};
-use sp_client::{FeeRate, OutputSpendStatus, OwnedOutput, Recipient, SilentPaymentUnsignedTransaction, SpClient};
+use sp_client::bitcoin::{Amount, BlockHash, OutPoint, Transaction, TxOut, Txid, XOnlyPublicKey};
 use sp_client::silentpayments::utils::receiving::calculate_ecdh_shared_secret;
+use sp_client::{
+    FeeRate, OutputSpendStatus, OwnedOutput, Recipient, SilentPaymentUnsignedTransaction, SpClient,
+};
 
 #[derive(Debug, Default, Deserialize, Serialize, Clone)]
 pub struct SpWallet {
@@ -40,14 +43,16 @@ impl SpWallet {
     }
 
     pub fn get_unspent_outputs(&self) -> HashMap<OutPoint, OwnedOutput> {
-        self.outputs.iter()
+        self.outputs
+            .iter()
             .filter(|(_, output)| output.spend_status == OutputSpendStatus::Unspent)
             .map(|(outpoint, output)| (*outpoint, output.clone()))
             .collect()
     }
 
     pub fn get_balance(&self) -> Amount {
-        self.outputs.values()
+        self.outputs
+            .values()
             .filter(|output| output.spend_status == OutputSpendStatus::Unspent)
             .fold(Amount::ZERO, |acc, x| acc + x.amount)
     }
@@ -68,7 +73,39 @@ impl SpWallet {
         self.last_scan = last_scan;
     }
 
-    pub fn update_with_transaction(&mut self, tx: &Transaction, public_tweak: &PublicKey, height: u32) -> Result<HashMap<OutPoint, OwnedOutput>> {
+    pub fn mark_output_spent(&mut self, outpoint: &OutPoint, txid: &Txid) {
+        if let Some(output) = self.outputs.get_mut(outpoint) {
+            output.spend_status = OutputSpendStatus::Spent(txid.to_byte_array());
+        }
+    }
+
+    pub fn mark_output_mined(&mut self, outpoint: &OutPoint, blk_hash: BlockHash) {
+        if let Some(output) = self.outputs.get_mut(outpoint) {
+            output.spend_status = OutputSpendStatus::Mined(blk_hash.to_byte_array());
+        }
+    }
+
+    fn check_inputs(&mut self, tx: &Transaction) {
+        for input in &tx.input {
+            if let Some(output) = self.outputs.get(&input.previous_output) {
+                if output.spend_status != OutputSpendStatus::Unspent {
+                    log::debug!("Input is already spent: {:?}", input.previous_output);
+                    continue;
+                } else {
+                    self.mark_output_spent(&input.previous_output, &tx.txid());
+                }
+            }
+        }
+    }
+
+    pub fn update_with_transaction(
+        &mut self,
+        tx: &Transaction,
+        public_tweak: &PublicKey,
+        height: u32,
+    ) -> Result<HashMap<OutPoint, OwnedOutput>> {
+        // Check if we have outputs that are spent by this transaction
+        self.check_inputs(tx);
         let receiver = &self.get_sp_client().sp_receiver;
         let p2tr_outs: Vec<(usize, &TxOut)> = tx
             .output
@@ -78,7 +115,7 @@ impl SpWallet {
             .collect();
 
         if p2tr_outs.is_empty() {
-            return Err(Error::msg("No taproot outputs"))
+            return Err(Error::msg("No taproot outputs"));
         }; // That should never happen since we have a tweak_data, but anyway
 
         // Now we can just run sp_receiver on all the p2tr outputs
@@ -136,7 +173,7 @@ impl SpWallet {
 
 #[derive(Debug, Serialize, Deserialize, PartialEq, Tsify)]
 #[tsify(from_wasm_abi)]
-pub struct TsUnsignedTransaction(SilentPaymentUnsignedTransaction); 
+pub struct TsUnsignedTransaction(SilentPaymentUnsignedTransaction);
 
 impl TsUnsignedTransaction {
     pub fn new(unsigned_tx: SilentPaymentUnsignedTransaction) -> Self {
@@ -166,16 +203,16 @@ pub fn create_transaction(
         thread_rng().fill(&mut commitment);
     }
 
-    recipients.push(Recipient { 
-        address: sp_client::RecipientAddress::Data(commitment.to_vec()), 
-        amount: Amount::ZERO 
+    recipients.push(Recipient {
+        address: sp_client::RecipientAddress::Data(commitment.to_vec()),
+        amount: Amount::ZERO,
     });
 
     let new_transaction = sp_client.create_new_transaction(
-        available_outpoints, 
-        recipients, 
+        available_outpoints,
+        recipients,
         fee_rate,
-        sp_client.get_network()
+        sp_client.get_network(),
     )?;
 
     let finalized_transaction = SpClient::finalize_transaction(new_transaction)?;
@@ -183,7 +220,10 @@ pub fn create_transaction(
     Ok(finalized_transaction)
 }
 
-pub fn sign_transaction(sp_client: &SpClient, unsigned_transaction: SilentPaymentUnsignedTransaction) -> Result<Transaction> {
+pub fn sign_transaction(
+    sp_client: &SpClient,
+    unsigned_transaction: SilentPaymentUnsignedTransaction,
+) -> Result<Transaction> {
     let mut aux_rand = [0u8; 32];
     thread_rng().fill(&mut aux_rand);
     sp_client.sign_transaction(unsigned_transaction, &aux_rand)

src/updates.rs

@@ -0,0 +1,212 @@
+use anyhow::Result;
+use serde::{Deserialize, Serialize};
+use std::{
+    mem,
+    sync::{
+        mpsc::{self, Receiver, Sender},
+        Arc, RwLock,
+    },
+};
+// use wasm_bindgen::prelude::*;
+// use sp_client::bitcoin::absolute::Height;
+// use sp_client::bitcoin::BlockHash;
+use sp_client::{
+    bitcoin::{absolute::Height, BlockHash, OutPoint},
+    OwnedOutput, Updater,
+};
+use std::collections::{HashMap, HashSet};
+
+#[derive(Debug, Serialize, Deserialize)]
+pub struct ScanProgress {
+    pub start: u32,
+    pub current: u32,
+    pub end: u32,
+}
+
+#[derive(Debug, Serialize, Deserialize)]
+pub enum StateUpdate {
+    NoUpdate {
+        blkheight: Height,
+    },
+    Update {
+        blkheight: Height,
+        blkhash: BlockHash,
+        found_outputs: HashMap<OutPoint, OwnedOutput>,
+        found_inputs: HashSet<OutPoint>,
+    },
+}
+
+// #[cfg(target_arch = "wasm32")]
+// #[wasm_bindgen]
+// extern "C" {
+//     #[wasm_bindgen(js_namespace = window)]
+//     fn sendScanProgress(progress: JsValue);
+
+//     #[wasm_bindgen(js_namespace = window)]
+//     fn sendStateUpdate(update: JsValue);
+// }
+
+pub trait UpdateSink: Send + Sync {
+    fn send_scan_progress(&self, progress: ScanProgress) -> Result<()>;
+    fn send_state_update(&self, update: StateUpdate) -> Result<()>;
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+pub struct NativeUpdateSink {
+    scan_tx: Sender<ScanProgress>,
+    state_tx: Sender<StateUpdate>,
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+impl NativeUpdateSink {
+    pub fn new() -> (Self, Receiver<ScanProgress>, Receiver<StateUpdate>) {
+        let (scan_tx, scan_rx) = mpsc::channel();
+        let (state_tx, state_rx) = mpsc::channel();
+
+        (Self { scan_tx, state_tx }, scan_rx, state_rx)
+    }
+}
+
+#[cfg(not(target_arch = "wasm32"))]
+impl UpdateSink for NativeUpdateSink {
+    fn send_scan_progress(&self, progress: ScanProgress) -> Result<()> {
+        self.scan_tx.send(progress)?;
+        Ok(())
+    }
+
+    fn send_state_update(&self, update: StateUpdate) -> Result<()> {
+        self.state_tx.send(update)?;
+        Ok(())
+    }
+}
+
+// #[cfg(target_arch = "wasm32")]
+// pub struct WasmUpdateSink;
+
+// #[cfg(target_arch = "wasm32")]
+// impl UpdateSink for WasmUpdateSink {
+//     fn send_scan_progress(&self, progress: ScanProgress) -> Result<()> {
+//         let js_value = serde_wasm_bindgen::to_value(&progress)?;
+//         sendScanProgress(js_value);
+//         Ok(())
+//     }
+
+//     fn send_state_update(&self, update: StateUpdate) -> Result<()> {
+//         let js_value = serde_wasm_bindgen::to_value(&update)?;
+//         sendStateUpdate(js_value);
+//         Ok(())
+//     }
+// }
+
+// Global sink instance
+static UPDATE_SINK: RwLock<Option<Arc<dyn UpdateSink>>> = RwLock::new(None);
+
+pub fn init_update_sink(sink: Arc<dyn UpdateSink>) {
+    let mut sink_guard = UPDATE_SINK.write().unwrap();
+    *sink_guard = Some(sink);
+}
+
+pub fn get_update_sink() -> Option<Arc<dyn UpdateSink>> {
+    UPDATE_SINK.read().unwrap().clone()
+}
+
+#[derive(Debug)]
+pub struct StateUpdater {
+    update: bool,
+    blkhash: Option<BlockHash>,
+    blkheight: Option<Height>,
+    found_outputs: HashMap<OutPoint, OwnedOutput>,
+    found_inputs: HashSet<OutPoint>,
+}
+
+impl StateUpdater {
+    pub fn new() -> Self {
+        Self {
+            update: false,
+            blkheight: None,
+            blkhash: None,
+            found_outputs: HashMap::new(),
+            found_inputs: HashSet::new(),
+        }
+    }
+
+    pub fn to_update(&mut self) -> Result<StateUpdate> {
+        let blkheight = self
+            .blkheight
+            .ok_or(anyhow::Error::msg("blkheight not filled"))?;
+
+        if self.update {
+            self.update = false;
+
+            let blkhash = self.blkhash.ok_or(anyhow::Error::msg("blkhash not set"))?;
+
+            self.blkheight = None;
+            self.blkhash = None;
+
+            // take results, and insert new empty values
+            let found_inputs = mem::take(&mut self.found_inputs);
+            let found_outputs = mem::take(&mut self.found_outputs);
+
+            Ok(StateUpdate::Update {
+                blkheight,
+                blkhash,
+                found_outputs,
+                found_inputs,
+            })
+        } else {
+            Ok(StateUpdate::NoUpdate { blkheight })
+        }
+    }
+}
+
+impl Updater for StateUpdater {
+    fn record_scan_progress(&mut self, start: Height, current: Height, end: Height) -> Result<()> {
+        self.blkheight = Some(current);
+
+        if let Some(sink) = get_update_sink() {
+            sink.send_scan_progress(ScanProgress {
+                start: start.to_consensus_u32(),
+                current: current.to_consensus_u32(),
+                end: end.to_consensus_u32(),
+            })?;
+        }
+
+        Ok(())
+    }
+
+    fn record_block_outputs(
+        &mut self,
+        height: Height,
+        blkhash: BlockHash,
+        found_outputs: HashMap<OutPoint, OwnedOutput>,
+    ) -> Result<()> {
+        // may have already been written by record_block_inputs
+        self.update = true;
+        self.found_outputs = found_outputs;
+        self.blkhash = Some(blkhash);
+        self.blkheight = Some(height);
+
+        Ok(())
+    }
+
+    fn record_block_inputs(
+        &mut self,
+        blkheight: Height,
+        blkhash: BlockHash,
+        found_inputs: HashSet<OutPoint>,
+    ) -> Result<()> {
+        self.update = true;
+        self.blkheight = Some(blkheight);
+        self.blkhash = Some(blkhash);
+        self.found_inputs = found_inputs;
+
+        Ok(())
+    }
+
+    fn save_to_persistent_storage(&mut self) -> Result<()> {
+        if let Some(sink) = get_update_sink() {
+            sink.send_state_update(self.to_update()?)?;
+        }
+        Ok(())
+    }
+}