How could I generate a private key and wallet address with this sdk? about ckb-sdk-js

[luckyyang]

const Address  = require('@nervosnetwork/ckb-sdk-address')

should be:

const Address  = require('@nervosnetwork/ckb-sdk-address').default

The runnable code will be:

const EC = require('elliptic').ec
const Address  = require('@nervosnetwork/ckb-sdk-address').default

const ec = new EC('secp256k1')

const privateKey = ec.genKeyPair()

const address = new Address(privateKey, { prefix: 'ckt' }) // the ckt is the signal for testnet

[Keith-CY]

For now, the ckb-sdk-js doesn't expose such API to generate a private key. If it is really necessary, we'd like to add one.

Here is a trick way to get a random private key:

In the project which has installed ckb-sdk-js, an package named elliptic is also installed, you can just run the following script to get one.

const EC = require('elliptic').ec;
const ec = new EC('secp256k1')
const key = ec.genKeyPair()

[Keith-CY]

The @nervosnetwork/[email protected] generates addresses for the mainnet by default, it's not handy for the testnet so an improvement has been committed to accept address configuration.

If you are using the @nervosnetwork/[email protected], the @nervosnetwork/[email protected] is already installed, you can use the following script to get the address object

const Address  = require('@nervosnetwork/ckb-sdk-address')
const privateKey = '0x...'
const address = new Address(privateKey, { prefix: 'ckt' }) // the ckt is the signal for testnet

[luckyyang]

Will try, thanks.

[luckyyang]

I make it into a repo https://github.com/rebase-network/ckb-wallet-generator
Maybe later we convert it to a web service.

[ashchan]

As an alternative, just use openssl to generate one.

openssl rand 32 -hex

[ashchan]

The @nervosnetwork/[email protected] generates addresses for the mainnet by default, it's not handy for the testnet so an improvement has been committed to accept address configuration.

If you are using the @nervosnetwork/[email protected], the @nervosnetwork/[email protected] is already installed, you can use the following script to get the address object

const Address  = require('@nervosnetwork/ckb-sdk-address')
const privateKey = '0x...'
const address = new Address(privateKey, { prefix: 'ckt' }) // the ckt is the signal for testnet

Please update so it generate testnet address by default.

[luckyyang]

openssl rand 32 -hex

Yes that's the easiest way

[liushooter]

openssl rand 32 -hex only get private key

[ashchan]

openssl rand 32 -hex only get private key

Yes but public key and address derivation is already supported by the SDK ;-)

[Keith-CY]

The @nervosnetwork/[email protected] generates addresses for the mainnet by default, it's not handy for the testnet so an improvement has been committed to accept address configuration.
If you are using the @nervosnetwork/[email protected], the @nervosnetwork/[email protected] is already installed, you can use the following script to get the address object

const Address  = require('@nervosnetwork/ckb-sdk-address')
const privateKey = '0x...'
const address = new Address(privateKey, { prefix: 'ckt' }) // the ckt is the signal for testnet

Please update so it generate testnet address by default.

set ckt as the default prefix of address in #211