This tool can be used to derive a BTC private key from an RSK private key and address, and vice versa.

You can derive RSK addresses from any valid BTC private key using this tool, but you may only derive RSK private keys from P2PKH BTC private keys. This is an RSK limitation.

run npm install.

Given a string representing a BTC private key (in WIF format) and the network(mainnet or testnet), this function will indicate with a boolean if the private key is valid or not.

Given a string representing a RSK private key, this function will indicate with a boolean if the private key is valid or not.

Given a string representing a BTC private key (in WIF format) and the network(mainnet or testnet), this function will return derived information. It includes the RSK address and private key. e.g.:

{
 address: '36eb6a1d1720a6037d0680b8b357fc661a24bfdc',
 privateKey: '2cfc1062d5beff50764f3d1b7a8d2d67ac4736c14caceeeb956bcc815c8a0708'
}

Given a string representing a RSK private key and the network(mainnet or testnet) , this function will return derived information. It includes the BTC address (p2pkh) and private key. e.g.:

{
 address: '17G5dLTzxnZAWgbBpAVQfi8nGLXo6P4WFV',
 privateKey: 'Kxj9x4G2Uvw8CbngATxGZLY4K2EFkjty7mumLabJQEhHw9ZLyZTs'
}

Returns bitcoin networks. e.g.:

{
    MAINNET: 'mainnet',
    TESTNET: 'testnet'
}

Require the package and use the available methods.

Sample usage:

BTC --> RSK

const btcRskDerivation = require('@rsksmart/btc-rsk-derivation');
let btcPrivateKey = 'Kxj9x4G2Uvw8CbngATxGZLY4K2EFkjty7mumLabJQEhHw9ZLyZTs';
let addressInformation = btcRskDerivation.getDerivedRSKAddressInformation(btcPrivateKey);
console.log(`RSK Address ${addressInformation.address}`);
console.log(`RSK PrivateKey ${addressInformation.privateKey}`);

RSK --> BTC

const btcRskDerivation = require('@rsksmart/btc-rsk-derivation');
let rskPrivateKey = '2cfc1062d5beff50764f3d1b7a8d2d67ac4736c14caceeeb956bcc815c8a0708';
let addressInformation = btcRskDerivation.getDerivedBTCAddressInformation(rskPrivateKey);
console.log(`BTC Address ${addressInformation.address}`);
console.log(`BTC PrivateKey ${addressInformation.privateKey}`);