Generate Ethereum and Bitcoin addresses using the number 1 as a private key

gistfile1.js

import * as secp from '@noble/secp256k1'
import ripemd160 from 'ripemd160-js/ripemd160.mjs'
import * as sha3 from 'js-sha3'
import { createHash } from 'node:crypto'
import { binary_to_base58 } from 'base58-js'


// Generate public key for private key of number 1 (or any number between 1 and ~10^77)
const privateKey = Buffer.alloc(32)
privateKey.writeUInt8(0x1, 31)
const publicKey = secp.getPublicKey(privateKey, false)
console.log("Private Key:", privateKey.toString('hex'));
console.log("Public Key:", Buffer.from(publicKey).toString('hex'));

// Use public key (without first byte) to generate Ethereum Address
const ethAddress = sha3.default.keccak256(publicKey.subarray(1)).slice(-40)
console.log('Ethereum Address:', `0x${ethAddress}`)

// Use public key to generate Bitcoin address
// First apply SHA256 to public key
const pubKeyHash = createHash('sha256').update(publicKey).digest()
// Then apply RIPE-MD160 to hashed public key
ripemd160(pubKeyHash).then(payload => {
    // Version byte
    const versionByte = Buffer.alloc(1, 0x00)
    // Version + payload
    const versionPayload = Buffer.concat([
        versionByte,
        Buffer.from(payload)
    ])
    // Make checksum using double SHA-256 of version+payload
    const singleSha256 = createHash('sha256').update(versionPayload).digest()
    const doubleSha256 = createHash('sha256').update(singleSha256).digest()
    // Concatenate first 4 bytes of checksum to version+payload
    const addressCheck = Buffer.concat([
        versionPayload,
        doubleSha256.subarray(0, 4)
    ])

    console.log("Bitcoin Address", binary_to_base58(addressCheck))
});