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

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btc-rsk-derivation

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.

Requirements

run npm install.

Methods

isValidBtcPrivateKey

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.

isValidRskPrivateKey

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

getDerivedRSKAddressInformation

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'
}

getDerivedBTCAddressInformation

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'
}

getNetworkTypes

Returns bitcoin networks. e.g.:

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

How to use it

NodeJs

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}`);

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

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