fix(dubp): master pubkey of HD wallet must not be accessible

Cargo.lock

@@ -261,9 +261,9 @@ dependencies = [
 
 [[package]]
 name = "dup-crypto"
-version = "0.41.0"
+version = "0.41.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "38f6b6eb9f9a9e92e70515090be3733857966f2a635564f36e78af047e63a1bf"
+checksum = "e69f621e9575ed2647fb67a9e8a8d8d5cc8d9281dec2fc848c7619a159501562"
 dependencies = [
  "aes",
  "arrayvec",

native/dubp_rs/Cargo.toml

@@ -10,7 +10,7 @@ crate-type = ["rlib"]
 
 [dependencies]
 allo-isolate = "0.1.6"
-dup-crypto = { version = "0.41.0", features = ["bip32-ed25519", "dewif", "mnemonic", "mnemonic_french", "rand", "scrypt"] }
+dup-crypto = { version = "0.41.1", features = ["bip32-ed25519", "dewif", "mnemonic", "mnemonic_french", "rand", "scrypt"] }
 fast-threadpool = { version = "0.3.0", default-features = false }
 once_cell = { version = "1.3.1", default-features = false, features = ["std"] }
 thiserror = "1.0.23"

native/dubp_rs/src/dewif.rs

@@ -19,14 +19,12 @@ pub mod classic;
 use crate::*;
 
 pub(super) fn change_secret_code(
-    currency: &str,
     dewif: &str,
     old_secret_code: &str,
     member_wallet: bool,
     secret_code_type: SecretCodeType,
     system_memory: i64,
 ) -> Result<Vec<String>, DubpError> {
-    let currency = parse_currency(currency)?;
     let new_log_n = log_n(system_memory);
     let new_secret_code = gen_secret_code(member_wallet, secret_code_type, new_log_n)?;
 
@@ -34,9 +32,7 @@ pub(super) fn change_secret_code(
         dup_crypto::dewif::change_dewif_passphrase(dewif, old_secret_code, &new_secret_code)
             .map_err(DubpError::DewifReadError)?;
 
-    let pubkey = get_pubkey(currency, &new_dewif, &new_secret_code)?;
-
-    Ok(vec![new_dewif, new_secret_code, pubkey])
+    Ok(vec![new_dewif, new_secret_code])
 }
 
 pub(super) fn gen_dewif(
@@ -56,28 +52,19 @@ pub(super) fn gen_dewif(
     let log_n = log_n(system_memory);
     let secret_code = gen_secret_code(member_wallet, secret_code_type, log_n)?;
 
-    let (dewif, pubkey) = match wallet_type {
+    let dewif = match wallet_type {
         WalletType::Bip32Ed25519 => {
             let keypair = dup_crypto::keys::ed25519::bip32::KeyPair::from_seed(seed.clone());
             let pubkey = keypair.public_key();
-            let dewif = dup_crypto::dewif::write_dewif_v4_content(
-                currency,
-                log_n,
-                &secret_code,
-                &pubkey,
-                seed,
-            );
-            (dewif, pubkey.to_base58())
+            dup_crypto::dewif::write_dewif_v4_content(currency, log_n, &secret_code, &pubkey, seed)
         }
         WalletType::Ed25519 => {
             let keypair = KeyPairFromSeed32Generator::generate(seed);
-            let dewif =
-                dup_crypto::dewif::write_dewif_v3_content(currency, &keypair, log_n, &secret_code);
-            (dewif, keypair.public_key().to_base58())
+            dup_crypto::dewif::write_dewif_v3_content(currency, &keypair, log_n, &secret_code)
         }
     };
 
-    Ok(vec![dewif, secret_code, pubkey])
+    Ok(vec![dewif, secret_code])
 }
 
 pub(super) fn get_secret_code_len(
@@ -110,10 +97,12 @@ pub(super) fn get_pubkey(
         &secret_code.to_ascii_uppercase(),
     )
     .map_err(DubpError::DewifReadError)?;
-    if let Some(keypair) = keypairs.next() {
-        Ok(keypair.public_key().to_base58())
-    } else {
-        Err(DubpError::DewifReadError(DewifReadError::CorruptedContent))
+
+    match keypairs.next() {
+        Some(KeyPairEnum::Ed25519(keypair)) => Ok(keypair.public_key().to_base58()),
+        Some(KeyPairEnum::Bip32Ed25519(_)) => Err(DubpError::GetMasterPubkeyOfHdWallet),
+        Some(_) => Err(DubpError::UnsupportedDewifVersion),
+        None => Err(DubpError::DewifReadError(DewifReadError::CorruptedContent)),
     }
 }
 

native/dubp_rs/src/error.rs

@@ -28,6 +28,8 @@ pub(crate) enum DubpError {
     InvalidDerivationIndex(InvalidDerivationIndex),
     #[error("Digits secret code forbid for member wallet")]
     DigitsCodeForbidForMemberWallet,
+    #[error("It is forbidden to retrieve the master public key of an HD wallet.")]
+    GetMasterPubkeyOfHdWallet,
     #[error("this wallet is not an HD wallet")]
     NotHdWallet,
     #[error("this account index is not a transparent account index")]
@@ -40,6 +42,8 @@ pub(crate) enum DubpError {
     UnknownCurrencyName,
     #[error("Unknown language")]
     UnknownLanguage,
+    #[error("Unsupported DEWIF version")]
+    UnsupportedDewifVersion,
     #[error("{0}")]
     Utf8Error(std::str::Utf8Error),
     #[error("Wrong language")]

native/dubp_rs/src/lib.rs

@@ -45,9 +45,8 @@ use thiserror::Error;
 #[no_mangle]
 pub extern "C" fn change_dewif_secret_code(
     port: i64,
-    currency: *const raw::c_char,
     dewif: *const raw::c_char,
-    old_pin: *const raw::c_char,
+    old_secret_code: *const raw::c_char,
     member_wallet: u32,
     secret_code_type: u32,
     system_memory: i64,
@@ -55,25 +54,22 @@ pub extern "C" fn change_dewif_secret_code(
     exec_async(
         port,
         || {
-            let currency = char_ptr_to_str(currency)?;
             let dewif = char_ptr_to_str(dewif)?;
-            let old_pin = char_ptr_to_str(old_pin)?;
+            let old_secret_code = char_ptr_to_str(old_secret_code)?;
             let member_wallet = member_wallet != 0;
             let secret_code_type = SecretCodeType::from(secret_code_type);
             Ok((
-                currency,
                 dewif,
-                old_pin,
+                old_secret_code,
                 member_wallet,
                 secret_code_type,
                 system_memory,
             ))
         },
-        |(currency, dewif, old_pin, member_wallet, secret_code_type, system_memory)| {
+        |(dewif, old_secret_code, member_wallet, secret_code_type, system_memory)| {
             dewif::change_secret_code(
-                currency,
                 dewif,
-                old_pin,
+                old_secret_code,
                 member_wallet,
                 secret_code_type,
                 system_memory,

packages/dubp_rs/lib/dubp.dart

@@ -23,10 +23,7 @@ class NewWallet {
   /// Secret code
   String pin;
 
-  /// Public key
-  String publicKey;
-
-  NewWallet._(this.dewif, this.pin, this.publicKey);
+  NewWallet._(this.dewif, this.pin);
 }
 
 /// Secret code type
@@ -60,7 +57,6 @@ class DubpRust {
 
   /// Change the secret code that encrypts the `dewif` keypair.
   static Future<NewWallet> changeDewifPin({
-    String currency = "g1",
     String dewif,
     String oldPin,
     SecretCodeType secretCodeType = SecretCodeType.letters,
@@ -72,7 +68,6 @@ class DubpRust {
         callback: _handleErrList);
     native.change_dewif_secret_code(
       sendPort.nativePort,
-      Utf8.toUtf8(currency),
       Utf8.toUtf8(dewif),
       Utf8.toUtf8(oldPin),
       0,
@@ -81,7 +76,7 @@ class DubpRust {
     );
     List<String> newWallet = await completer.future;
 
-    return Future.value(NewWallet._(newWallet[0], newWallet[1], newWallet[2]));
+    return Future.value(NewWallet._(newWallet[0], newWallet[1]));
   }
 
   /// Generate a random mnemonic
@@ -122,7 +117,7 @@ class DubpRust {
     );
     List<String> newWallet = await completer.future;
 
-    return Future.value(NewWallet._(newWallet[0], newWallet[1], newWallet[2]));
+    return Future.value(NewWallet._(newWallet[0], newWallet[1]));
   }
 
   /// Generate a wallet from a mnemonic phrase.
@@ -157,7 +152,7 @@ class DubpRust {
     );
     List<String> newWallet = await completer.future;
 
-    return Future.value(NewWallet._(newWallet[0], newWallet[1], newWallet[2]));
+    return Future.value(NewWallet._(newWallet[0], newWallet[1]));
   }
 
   //get_bip32_dewif_accounts_pubkeys