Examples with KeyList com.hedera.hashgraph.sdk.KeyList used on opensource projects

Example 6 with KeyList

use of com.hedera.hashgraph.sdk.KeyList in project hedera-sdk-java by hashgraph.

the class TopicWithAdminKeyExample method createTopicWithAdminKey.

private void createTopicWithAdminKey() throws TimeoutException, PrecheckStatusException, ReceiptStatusException {
    // Generate the initial keys that are part of the adminKey's thresholdKey.
    // 3 ED25519 keys part of a 2-of-3 threshold key.
    initialAdminKeys = new PrivateKey[3];
    J8Arrays.setAll(initialAdminKeys, i -> PrivateKey.generate());
    KeyList thresholdKey = KeyList.withThreshold(2);
    Collections.addAll(thresholdKey, initialAdminKeys);
    Transaction<?> transaction = new TopicCreateTransaction().setTopicMemo("demo topic").setAdminKey(thresholdKey).freezeWith(hapiClient);
    // Sign the transaction with 2 of 3 keys that are part of the adminKey threshold key.
    J8Arrays.stream(initialAdminKeys, 0, 2).forEach(k -> {
        System.out.println("Signing ConsensusTopicCreateTransaction with key " + k);
        transaction.sign(k);
    });
    TransactionResponse transactionResponse = transaction.execute(hapiClient);
    topicId = transactionResponse.getReceipt(hapiClient).topicId;
    System.out.println("Created new topic " + topicId + " with 2-of-3 threshold key as adminKey.");
}

Example 7 with KeyList

use of com.hedera.hashgraph.sdk.KeyList in project hedera-sdk-java by hashgraph.

the class MultiSigOfflineExample method main.

public static void main(String[] args) throws PrecheckStatusException, TimeoutException, ReceiptStatusException, InvalidProtocolBufferException {
    Client client = Client.forName(HEDERA_NETWORK);
    // Defaults the operator account ID and key such that all generated transactions will be paid for
    // by this account and be signed by this key
    client.setOperator(OPERATOR_ID, OPERATOR_KEY);
    PrivateKey user1Key = PrivateKey.generateED25519();
    PrivateKey user2Key = PrivateKey.generateED25519();
    System.out.println("private key for user 1 = " + user1Key);
    System.out.println("public key for user 1 = " + user1Key.getPublicKey());
    System.out.println("private key for user 2 = " + user2Key);
    System.out.println("public key for user 2 = " + user2Key.getPublicKey());
    // create a multi-sig account
    KeyList keylist = new KeyList();
    keylist.add(user1Key);
    keylist.add(user2Key);
    TransactionResponse createAccountTransaction = new AccountCreateTransaction().setInitialBalance(new Hbar(2)).setKey(keylist).execute(client);
    @Var TransactionReceipt receipt = createAccountTransaction.getReceipt(client);
    System.out.println("account id = " + receipt.accountId);
    // create a transfer from new account to 0.0.3
    TransferTransaction transferTransaction = new TransferTransaction().setNodeAccountIds(Collections.singletonList(new AccountId(3))).addHbarTransfer(Objects.requireNonNull(receipt.accountId), Hbar.from(-1)).addHbarTransfer(new AccountId(3), new Hbar(1)).freezeWith(client);
    // convert transaction to bytes to send to signatories
    byte[] transactionBytes = transferTransaction.toBytes();
    Transaction<?> transactionToExecute = Transaction.fromBytes(transactionBytes);
    // ask users to sign and return signature
    byte[] user1Signature = user1Key.signTransaction(Transaction.fromBytes(transactionBytes));
    byte[] user2Signature = user2Key.signTransaction(Transaction.fromBytes(transactionBytes));
    // recreate the transaction from bytes
    transactionToExecute.signWithOperator(client);
    transactionToExecute.addSignature(user1Key.getPublicKey(), user1Signature);
    transactionToExecute.addSignature(user2Key.getPublicKey(), user2Signature);
    TransactionResponse result = transactionToExecute.execute(client);
    receipt = result.getReceipt(client);
    System.out.println(receipt.status);
}

Example 8 with KeyList

use of com.hedera.hashgraph.sdk.KeyList in project hedera-mirror-node by hashgraph.

the class ScheduleCreateTransactionSupplier method getPublicKeys.

private KeyList getPublicKeys() {
    KeyList keys = new KeyList();
    getFullSignatoryList().forEach(key -> keys.add(key.getPublicKey()));
    return keys;
}

Example 9 with KeyList

use of com.hedera.hashgraph.sdk.KeyList in project hedera-mirror-node by hashgraph.

the class ScheduleFeature method createNewCryptoAccountSchedule.

@Given("I schedule a crypto transfer with {int} initial signatures but require an additional signature from " + "{string}")
public void createNewCryptoAccountSchedule(int initSignatureCount, String accountName) {
    // new account, accountName and initSignatureCount
    expectedSignersCount = 2 + initSignatureCount;
    currentSignersCount = initSignatureCount + signatoryCountOffset;
    ExpandedAccountId finalSignatory = accountClient.getAccount(AccountClient.AccountNameEnum.valueOf(accountName));
    KeyList privateKeyList = new KeyList();
    KeyList publicKeyList = new KeyList();
    for (int i = 0; i < initSignatureCount; i++) {
        PrivateKey accountKey = PrivateKey.generate();
        privateKeyList.add(accountKey);
        publicKeyList.add(accountKey.getPublicKey());
    }
    // additional signatory not provided up front to prevent schedule from executing
    publicKeyList.add(finalSignatory.getPublicKey());
    ExpandedAccountId newAccountId = accountClient.createCryptoAccount(Hbar.fromTinybars(DEFAULT_TINY_HBAR), false, publicKeyList, "scheduled transfer");
    scheduledTransaction = accountClient.getCryptoTransferTransaction(newAccountId.getAccountId(), accountClient.getSdkClient().getExpandedOperatorAccountId().getAccountId(), Hbar.fromTinybars(DEFAULT_TINY_HBAR));
    // add sender private key to ensure only Alice's signature is the only signature left that is required
    privateKeyList.add(newAccountId.getPrivateKey());
    createNewSchedule(scheduledTransaction, privateKeyList);
    currentSignersCount++;
}

Example 10 with KeyList

use of com.hedera.hashgraph.sdk.KeyList in project hedera-mirror-node by hashgraph.

the class TokenClient method updateTokenTreasury.

public NetworkTransactionResponse updateTokenTreasury(TokenId tokenId, ExpandedAccountId newTreasuryId) {
    AccountId treasuryAccountId = newTreasuryId.getAccountId();
    String memo = getMemo("Update token");
    TokenUpdateTransaction tokenUpdateTransaction = new TokenUpdateTransaction().setTokenId(tokenId).setTokenMemo(memo).setTreasuryAccountId(treasuryAccountId).setTransactionMemo(memo);
    KeyList keyList = KeyList.of(newTreasuryId.getPrivateKey());
    NetworkTransactionResponse networkTransactionResponse = executeTransactionAndRetrieveReceipt(tokenUpdateTransaction, keyList);
    log.debug("Updated token {} treasury account {}.", tokenId, treasuryAccountId);
    return networkTransactionResponse;
}