bbscoin-helpers

Native Node.js module for BBSCoin. This should work for all cryptonote based cryptocurrencies.

Usages

Create a GUI compatible wallet file with a single spending key.

createWallet(filePath, walletPassword, callback);

Create a GUI compatible wallet file with given keys.

generateWallet(filePath, walletPassword, address, viewSecret, spendSecret, callback);

Parse a GUI wallet file.

parseWallet(filePath, walletPassword, callback);

Create a new public/secret key pair.

generateNewKeyPair();

Create an address from public keys.

generateAddressFromKeyPair(spendPublicKey, viewPublicKey);

Get public view and spend key from a wallet address. Returns null if the address is not valid.

getKeyPairFromAddress(walletAddress);

Generate public key from secret key

secretKeyToPublicKey(secretKey)

Filter transaction output by given view and spend keys.

const transactionPublicKey = '64 characters long hex key';
const transactionOutputs = [
    {
        key: '64 characters long hex key'
        amount: 100000,
    }
]
const viewSecretKey = '64 characters long hex key';
const publicSpendKeys = [
    '64 characters long hex key'
]
findOutputs(transactionPublicKey, transactionOutputs, viewSecretKey, publicSpendKeys, callback)

Check whether the ring signature is correct

checkRingSignature(txPrefixHash, keyImage, outputPublicKeysFromInput, signatures);

Generate key image

generateKeyImage({ address, viewSecret, spendSecret }, transactionHash, indexInOutput);

Decompose amount

decomposeAmount(amount, dustThreshold)
// eg:
decomposeAmount(62387455827, 500000) === [
    455827,
    7000000,
    80000000,
    300000000,
    2000000000,
    60000000000
]

Compilation

Requirement

• node (v9.5.0+)
• boost

macOS

You will need the daemon source code in order to compile this module

brew install boost
ln ../bbscoin bbscoin
npm install
node-gyp rebuild

Test

npm test