qortal-ui/crypto/api/wallet/publicKeyToAddress.js

import Base58 from '../deps/Base58.js'
import BROKEN_RIPEMD160 from '../deps/broken-ripemd160.js'
import RIPEMD160 from '../deps/ripemd160.js'
import utils from '../deps/utils.js'
import {ADDRESS_VERSION} from '../constants.js'
import {Buffer} from 'buffer'
import {Sha256} from 'asmcrypto.js'

const repeatSHA256 = (passphrase, hashes) => {
	let hash = passphrase
	for (let i = 0; i < hashes; i++) {
		hash = new Sha256().process(hash).finish().result
	}
	return hash
}

const publicKeyToAddress = (publicKey, qora = false) => {
	const publicKeySha256 = new Sha256().process(publicKey).finish().result
	const _publicKeyHash = qora ? new BROKEN_RIPEMD160().digest(publicKeySha256) : new RIPEMD160().update(Buffer.from(publicKeySha256)).digest('hex')
	const publicKeyHash = qora ? _publicKeyHash : _publicKeyHash

	let address = new Uint8Array()

	address = utils.appendBuffer(address, [ADDRESS_VERSION])
	address = utils.appendBuffer(address, publicKeyHash)

	const checkSum = repeatSHA256(address, 2)
	address = utils.appendBuffer(address, checkSum.subarray(0, 4))

	address = Base58.encode(address)

	return address
}

export default publicKeyToAddress