#482 Generate Account/Wallet from root prv key

address/src/main/java/com/bloxbean/cardano/client/address/Address.java

@@ -12,6 +12,7 @@
  * Address class represents Shelley address
  */
 public class Address {
+    public static final String ADDR_VKH_PREFIX = "addr_vkh";
     private String prefix;
     private byte[] bytes;
     private String address;
@@ -173,4 +174,18 @@ public boolean isStakeKeyHashInDelegationPart() {
     public boolean isScriptHashInDelegationPart() {
         return AddressProvider.isScriptHashInDelegationPart(this);
     }
+
+    /**
+     * Retrieves the Bech32-encoded address verification key hash of the payment credential
+     * associated with the address, if available.
+     *
+     *
+     * @return An {@link Optional} containing the Bech32-encoded verification key hash
+     *         if the payment credential hash is available, or an empty {@link Optional}
+     *         if the payment credential hash is absent.
+     */
+    public Optional<String> getBech32VerificationKeyHash() {
+        return getPaymentCredentialHash()
+                .map(paymentCred -> Bech32.encode(paymentCred, ADDR_VKH_PREFIX));
+    }
 }

core/src/main/java/com/bloxbean/cardano/client/account/AccountException.java

@@ -0,0 +1,18 @@
+package com.bloxbean.cardano.client.account;
+
+public class AccountException extends RuntimeException {
+    public AccountException() {
+    }
+
+    public AccountException(String msg) {
+        super(msg);
+    }
+
+    public AccountException(Throwable cause) {
+        super(cause);
+    }
+
+    public AccountException(String msg, Throwable cause) {
+        super(msg, cause);
+    }
+}

crypto/src/main/java/com/bloxbean/cardano/client/crypto/bip32/HdKeyGenerator.java

@@ -56,7 +56,7 @@ public HdKeyPair getAccountKeyPairFromSecretKey(byte[] xprv, DerivationPath deri
         return getKeyPairFromSecretKey(xprv, accountPath);
     }
 
-    private HdKeyPair getKeyPairFromSecretKey(byte[] xprv, String path) {
+    public HdKeyPair getKeyPairFromSecretKey(byte[] xprv, String path) {
         byte[] IL = Arrays.copyOfRange(xprv, 0, 64);
         byte[] IR = Arrays.copyOfRange(xprv, 64, 96);
 

crypto/src/main/java/com/bloxbean/cardano/client/crypto/cip1852/CIP1852.java

@@ -27,6 +27,25 @@ public HdKeyPair getKeyPairFromMnemonic(String mnemonicPhrase, DerivationPath de
         }
     }
 
+    /**
+     * Generates the root HdKeyPair from the given mnemonic phrase.
+     *
+     * @param mnemonicPhrase the mnemonic phrase used to generate the HdKeyPair
+     * @return the root HdKeyPair derived from the provided mnemonic phrase
+     * @throws CryptoException if the mnemonic phrase cannot be converted to entropy or if
+     *         the key pair generation fails
+     */
+    public HdKeyPair getRootKeyPairFromMnemonic(String mnemonicPhrase) {
+        var hdKeyGenerator = new HdKeyGenerator();
+        try {
+            byte[] entropy = MnemonicCode.INSTANCE.toEntropy(mnemonicPhrase);
+
+            return hdKeyGenerator.getRootKeyPairFromEntropy(entropy);
+        } catch (Exception ex) {
+            throw new CryptoException("Mnemonic to KeyPair generation failed", ex);
+        }
+    }
+
     /**
      * Get HdKeyPair from entropy
      * @param entropy entropy
@@ -42,8 +61,7 @@ public HdKeyPair getKeyPairFromEntropy(byte[] entropy, DerivationPath derivation
         HdKeyPair accountKey = hdKeyGenerator.getChildKeyPair(coinTypeKey, derivationPath.getAccount().getValue(), derivationPath.getAccount().isHarden());
         HdKeyPair roleKey = hdKeyGenerator.getChildKeyPair(accountKey, derivationPath.getRole().getValue(), derivationPath.getRole().isHarden());
 
-        HdKeyPair indexKey = hdKeyGenerator.getChildKeyPair(roleKey, derivationPath.getIndex().getValue(), derivationPath.getIndex().isHarden());
-        return indexKey;
+        return hdKeyGenerator.getChildKeyPair(roleKey, derivationPath.getIndex().getValue(), derivationPath.getIndex().isHarden());
     }
 
     /**
@@ -58,8 +76,7 @@ public HdKeyPair getKeyPairFromAccountKey(byte[] accountKey, DerivationPath deri
         HdKeyPair accountKeyPair = hdKeyGenerator.getAccountKeyPairFromSecretKey(accountKey,  derivationPath);
         HdKeyPair roleKey = hdKeyGenerator.getChildKeyPair(accountKeyPair, derivationPath.getRole().getValue(), derivationPath.getRole().isHarden());
 
-        HdKeyPair indexKey = hdKeyGenerator.getChildKeyPair(roleKey, derivationPath.getIndex().getValue(), derivationPath.getIndex().isHarden());
-        return indexKey;
+        return hdKeyGenerator.getChildKeyPair(roleKey, derivationPath.getIndex().getValue(), derivationPath.getIndex().isHarden());
     }
 
     /**
@@ -106,4 +123,34 @@ public static HdPublicKey getPublicKeyFromAccountPubKey(HdPublicKey accountHdPub
         return hdKeyGenerator.getChildPublicKey(roleHdPubKey, index);
     }
 
+    /**
+     * Generates an HdKeyPair derived from the given root key and a specified derivation path.
+     *
+     * @param rootKey the root key represented as a byte array
+     * @param derivationPath the hierarchical deterministic (HD) derivation path used to derive the key pair
+     * @return the HdKeyPair derived from the provided root key and derivation path
+     */
+    public HdKeyPair getKeyPairFromRootKey(byte[] rootKey, DerivationPath derivationPath) {
+        HdKeyGenerator hdKeyGenerator = new HdKeyGenerator();
+        HdKeyPair rootKeyPair = hdKeyGenerator.getKeyPairFromSecretKey(rootKey, HdKeyGenerator.MASTER_PATH);
+
+        HdKeyPair purposeKey = hdKeyGenerator.getChildKeyPair(rootKeyPair, derivationPath.getPurpose().getValue(), derivationPath.getPurpose().isHarden());
+        HdKeyPair coinTypeKey = hdKeyGenerator.getChildKeyPair(purposeKey, derivationPath.getCoinType().getValue(), derivationPath.getCoinType().isHarden());
+        HdKeyPair accountKey = hdKeyGenerator.getChildKeyPair(coinTypeKey, derivationPath.getAccount().getValue(), derivationPath.getAccount().isHarden());
+        HdKeyPair roleKey = hdKeyGenerator.getChildKeyPair(accountKey, derivationPath.getRole().getValue(), derivationPath.getRole().isHarden());
+
+        return hdKeyGenerator.getChildKeyPair(roleKey, derivationPath.getIndex().getValue(), derivationPath.getIndex().isHarden());
+    }
+
+    /**
+     * Get an HdKeyPair from the given root key using the master derivation path.
+     *
+     * @param rootKey the root key represented as a byte array
+     * @return the HdKeyPair derived from the provided root key and the master derivation path
+     */
+    public HdKeyPair getRootKeyPairFromRootKey(byte[] rootKey) {
+        HdKeyGenerator hdKeyGenerator = new HdKeyGenerator();
+        return hdKeyGenerator.getKeyPairFromSecretKey(rootKey, HdKeyGenerator.MASTER_PATH);
+    }
+
 }

crypto/src/test/java/com/bloxbean/cardano/client/crypto/cip1852/CIP1852Test.java

@@ -90,4 +90,41 @@ void getPublicKeyFromAccountPubKey_xpub_2() {
 
         assertThat(HexUtil.encodeHexString(hdPublicKey.getBytes())).isEqualTo(expectedStakePubKey);
     }
+
+    @Test
+    void getRootKeyPairFromMnemonic() {
+        String mnemonic = "top exact spice seed cloud birth orient bracket happy cat section girl such outside elder";
+
+        var rootKeyPair = new CIP1852().getRootKeyPairFromMnemonic(mnemonic);
+        String expectedRootKeyBech32 = "root_xsk1zza6z52v8gelnaqdhuny3ywlccud5dtm8rvvyem4utnfwzcaa9pspsmdm99qfpy2qz7sw9sts59mrkegmdqyjen5ykm4z3ccyrkn8g5mm0qw35arvwxclfh6tj3s4x7t2q85wenvppjpxckcxgnf8vd80ug0l6rw";
+        String expectedRootPvtKeyHex = HexUtil.encodeHexString(Bech32.decode(expectedRootKeyBech32).data);
+
+        var rootPvtKey = rootKeyPair.getPrivateKey().getBytes();
+
+        assertThat(HexUtil.encodeHexString(rootPvtKey)).isEqualTo(expectedRootPvtKeyHex);
+    }
+
+    @Test
+    void getKeyPairFromRootKeyAtDerivationPath() {
+        String rootKey = "root_xsk1zza6z52v8gelnaqdhuny3ywlccud5dtm8rvvyem4utnfwzcaa9pspsmdm99qfpy2qz7sw9sts59mrkegmdqyjen5ykm4z3ccyrkn8g5mm0qw35arvwxclfh6tj3s4x7t2q85wenvppjpxckcxgnf8vd80ug0l6rw";
+        byte[] rootKeyBytes = Bech32.decode(rootKey).data;
+
+        var addr0KeyPair = new CIP1852().getKeyPairFromRootKey(rootKeyBytes, DerivationPath.createExternalAddressDerivationPath(0));
+
+        //1852H/1815H/0H/0/0
+        String expectedAddr0PvtKey = "addr_xsk1artlf4j6xz246j4xqtn6d595l7sy4vk0zuvzawlg7lwvq2qaa9pkujarca9j5ju08m0dlgw2qagauw693lvmrghujzvxsdfj99pwdm7xqwpgj5asad6nl5rzact6hune2xsl5x5gv2tds75ksdptavxr6se0fk8e";
+        String expectedAddr0PvtKeyHex = HexUtil.encodeHexString(Bech32.decode(expectedAddr0PvtKey).data);
+
+        assertThat(HexUtil.encodeHexString(addr0KeyPair.getPrivateKey().getBytes())).isEqualTo(expectedAddr0PvtKeyHex);
+    }
+
+    @Test
+    void getRootKeyPairFromRootKey() {
+        String rootKeyBech32 = "root_xsk1zza6z52v8gelnaqdhuny3ywlccud5dtm8rvvyem4utnfwzcaa9pspsmdm99qfpy2qz7sw9sts59mrkegmdqyjen5ykm4z3ccyrkn8g5mm0qw35arvwxclfh6tj3s4x7t2q85wenvppjpxckcxgnf8vd80ug0l6rw";
+        byte[] expectedRootKeyBytes = Bech32.decode(rootKeyBech32).data;
+
+        var rootKeyPair = new CIP1852().getRootKeyPairFromRootKey(expectedRootKeyBytes);
+
+        assertThat(HexUtil.encodeHexString(rootKeyPair.getPrivateKey().getBytes())).isEqualTo(HexUtil.encodeHexString(expectedRootKeyBytes));
+    }
 }

hd-wallet/src/it/java/com/bloxbean/cardano/hdwallet/QuickTxBuilderIT.java

@@ -9,6 +9,7 @@
 import com.bloxbean.cardano.client.backend.api.BackendService;
 import com.bloxbean.cardano.client.cip.cip20.MessageMetadata;
 import com.bloxbean.cardano.client.common.model.Networks;
+import com.bloxbean.cardano.client.crypto.Bech32;
 import com.bloxbean.cardano.client.exception.CborSerializationException;
 import com.bloxbean.cardano.client.function.helper.SignerProviders;
 import com.bloxbean.cardano.client.metadata.Metadata;
@@ -39,6 +40,7 @@ public class QuickTxBuilderIT extends QuickTxBaseIT {
     DefaultWalletUtxoSupplier walletUtxoSupplier;
     Wallet wallet1;
     Wallet wallet2;
+    Wallet wallet3;
 
     static Account topupAccount;
 
@@ -58,9 +60,12 @@ void setup() {
         utxoSupplier = getUTXOSupplier();
 
         String wallet1Mnemonic = "clog book honey force cricket stamp until seed minimum margin denial kind volume undo simple federal then jealous solid legal crucial crazy acoustic thank";
-        wallet1 = new Wallet(Networks.testnet(), wallet1Mnemonic);
+        wallet1 = Wallet.createFromMnemonic(Networks.testnet(), wallet1Mnemonic);
         String wallet2Mnemonic = "theme orphan remind output arrive lobster decorate ten gap piece casual distance attend total blast dilemma damp punch pride file limit soldier plug canoe";
-        wallet2 = new Wallet(Networks.testnet(), wallet2Mnemonic);
+        wallet2 = Wallet.createFromMnemonic(Networks.testnet(), wallet2Mnemonic);
+
+        String acctSk = "acct_xsk1azc6gn5zkdprp4gkapmhdckykphjl62rm9224699ut5z6xcaa9p4hv5hmjfgcrzk72tnsqh6dw0njekdjpsv8nv5h5hk6lpd4ag62zenwhzqs205kfurd7kgs8fm5gx4l4j8htutwj060kyp5y5kgw55qc8lsltd";
+        wallet3 = Wallet.createFromAccountKey(Networks.testnet(), Bech32.decode(acctSk).data);
 
         walletUtxoSupplier = new DefaultWalletUtxoSupplier(backendService.getUtxoService(), wallet1);
     }
@@ -71,15 +76,15 @@ void simplePayment() {
         metadata.put(BigInteger.valueOf(100), "This is first metadata");
         metadata.putNegative(200, -900);
 
+        wallet1.setSearchUtxoByAddrVkh(true);
         //topup wallet
-        splitPaymentBetweenAddress(topupAccount, wallet1, 20, Double.valueOf(50000));
-
+        splitPaymentBetweenAddress(topupAccount, wallet1, 20, Double.valueOf(3000), true);
 
         UtxoSupplier walletUtxoSupplier = new DefaultWalletUtxoSupplier(backendService.getUtxoService(), wallet1);
         QuickTxBuilder quickTxBuilder = new QuickTxBuilder(backendService, walletUtxoSupplier);
 
         Tx tx = new Tx()
-                .payToAddress(wallet2.getBaseAddress(0).getAddress(), Amount.ada(50000))
+                .payToAddress(wallet2.getBaseAddress(0).getAddress(), Amount.ada(2000))
                 .from(wallet1);
 
         Result<String> result = quickTxBuilder.compose(tx)
@@ -99,7 +104,7 @@ void simplePayment() {
     @Test
     void simplePayment_withIndexesToScan() {
         String mnemonic = "buzz sentence empty coffee manage grid claw street misery deputy direct seek tortoise wedding stay twist crew august omit taste expect obscure abandon iron";
-        Wallet wallet = new Wallet(Networks.testnet(), mnemonic);
+        Wallet wallet = Wallet.createFromMnemonic(Networks.testnet(), mnemonic);
         wallet.setIndexesToScan(new int[]{5, 30, 45});
 
         //topup index 5, 45
@@ -169,7 +174,7 @@ void utxoTest() {
         assertTrue(!utxos.isEmpty());
     }
 
-    void splitPaymentBetweenAddress(Account topupAccount, Wallet receiverWallet, int totalAddresses, Double adaAmount) {
+    void splitPaymentBetweenAddress(Account topupAccount, Wallet receiverWallet, int totalAddresses, Double adaAmount, boolean enableEntAddrPayment) {
         // Create an amount array with no of totalAddresses with random distribution of split amounts
         Double[] amounts = new Double[totalAddresses];
         Double remainingAmount = adaAmount;
@@ -187,7 +192,15 @@ void splitPaymentBetweenAddress(Account topupAccount, Wallet receiverWallet, int
         int currentIndex = 0;
 
         for (int i = 0; i < totalAddresses; i++) {
-            addresses[i] = receiverWallet.getBaseAddressString(currentIndex);
+            if (enableEntAddrPayment) {
+                if (i % 2 == 0)
+                    addresses[i] = receiverWallet.getBaseAddressString(currentIndex);
+                else
+                    addresses[i] = receiverWallet.getEntAddress(currentIndex).toBech32();
+            } else {
+                addresses[i] = receiverWallet.getBaseAddressString(currentIndex);
+            }
+
             currentIndex += random.nextInt(20) + 1;
         }
 
@@ -205,4 +218,34 @@ void splitPaymentBetweenAddress(Account topupAccount, Wallet receiverWallet, int
 
         System.out.println(result);
     }
+
+    @Test
+    void simplePayment_fromAccountKey() {
+        Metadata metadata = MetadataBuilder.createMetadata();
+        metadata.put(BigInteger.valueOf(100), "This is first metadata");
+        metadata.putNegative(200, -900);
+
+        //topup wallet
+        splitPaymentBetweenAddress(topupAccount, wallet3, 20, Double.valueOf(3000), false);
+
+        UtxoSupplier walletUtxoSupplier = new DefaultWalletUtxoSupplier(backendService.getUtxoService(), wallet3);
+        QuickTxBuilder quickTxBuilder = new QuickTxBuilder(backendService, walletUtxoSupplier);
+
+        Tx tx = new Tx()
+                .payToAddress(wallet2.getBaseAddress(0).getAddress(), Amount.ada(2000))
+                .from(wallet3);
+
+        Result<String> result = quickTxBuilder.compose(tx)
+                .withSigner(SignerProviders.signerFrom(wallet3))
+                .withTxInspector(txn -> {
+                    System.out.println(JsonUtil.getPrettyJson(txn));
+                })
+                .complete();
+
+        System.out.println(result);
+        assertTrue(result.isSuccessful());
+        waitForTransaction(result);
+
+        checkIfUtxoAvailable(result.getValue(), wallet2.getBaseAddress(0).getAddress());
+    }
 }

hd-wallet/src/it/java/com/bloxbean/cardano/hdwallet/StakeTxIT.java

@@ -59,9 +59,9 @@ static void beforeAll() {
         quickTxBuilder = new QuickTxBuilder(backendService);
 
         String wallet1Mnemonic = "clog book honey force cricket stamp until seed minimum margin denial kind volume undo simple federal then jealous solid legal crucial crazy acoustic thank";
-        wallet1 = new Wallet(Networks.testnet(), wallet1Mnemonic);
+        wallet1 = Wallet.createFromMnemonic(Networks.testnet(), wallet1Mnemonic);
         String wallet2Mnemonic = "theme orphan remind output arrive lobster decorate ten gap piece casual distance attend total blast dilemma damp punch pride file limit soldier plug canoe";
-        wallet2 = new Wallet(Networks.testnet(), wallet2Mnemonic);
+        wallet2 = Wallet.createFromMnemonic(Networks.testnet(), wallet2Mnemonic);
 
         if (backendType.equals(DEVKIT)) {
             poolId = "pool1wvqhvyrgwch4jq9aa84hc8q4kzvyq2z3xr6mpafkqmx9wce39zy";

hd-wallet/src/it/resources/log4j.xml

@@ -0,0 +1,44 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!DOCTYPE log4j:configuration SYSTEM "log4j.dtd">
+<log4j:configuration xmlns:log4j="http://jakarta.apache.org/log4j/" debug="true">
+    <!-- Console Appender -->
+    <appender name="console" class="org.apache.log4j.ConsoleAppender">
+        <param name="Target" value="System.out" />
+        <layout class="org.apache.log4j.PatternLayout">
+            <param name="ConversionPattern" value="%-5p | %d{yyyy-MM-dd HH:mm:ss} | [%t] %C{2} (%F:%L) - %m%n" />
+        </layout>
+    </appender>
+    <!-- Info Log File Appender -->
+    <appender name="info-log" class="org.apache.log4j.FileAppender">
+        <param name="File" value="info.log" />
+        <layout class="org.apache.log4j.PatternLayout">
+            <param name="ConversionPattern" value="%-5p | %d{yyyy-MM-dd HH:mm:ss} | [%t] %C{2} (%F:%L) - %m%n" />
+        </layout>
+        <filter class="org.apache.log4j.varia.LevelRangeFilter">
+            <param name="LevelMin" value="debug" />
+            <param name="LevelMax" value="info" />
+            <param name="AcceptOnMatch" value="true" />
+        </filter>
+    </appender>
+    <!-- Error Log File Appender -->
+    <appender name="error-log" class="org.apache.log4j.FileAppender">
+        <param name="Append" value="false" />
+        <param name="File" value="yaci_error.log" />
+        <layout class="org.apache.log4j.PatternLayout">
+            <param name="ConversionPattern" value="%-5p | %d{yyyy-MM-dd HH:mm:ss} | [%t] %C{2} (%F:%L) - %m%n" />
+        </layout>
+        <filter class="org.apache.log4j.varia.LevelRangeFilter">
+            <param name="LevelMin" value="warn" />
+            <param name="LevelMax" value="fatal" />
+            <param name="AcceptOnMatch" value="true" />
+        </filter>
+    </appender>
+<!--    <logger name="com.bloxbean.cardano">-->
+<!--        <appender-ref ref="info-log" />-->
+<!--        <appender-ref ref="error-log" />-->
+<!--    </logger>-->
+    <root>
+        <level value="debug" />
+        <appender-ref ref="console" />
+    </root>
+</log4j:configuration>