49 lines
1.5 KiB
TypeScript
49 lines
1.5 KiB
TypeScript
import { fromPrivateKey, IFullWallet, fromV3 } from 'ethereumjs-wallet';
|
||
import { isValidPrivKey } from 'libs/validators';
|
||
import { stripHexPrefix } from 'libs/values';
|
||
import { makeBlob } from 'utils/blob';
|
||
import { N_FACTOR } from 'config';
|
||
|
||
export interface KeystoreFile {
|
||
filename: string;
|
||
blob: string;
|
||
}
|
||
|
||
export function makeKeystoreWalletBlob(wallet: IFullWallet, password: string): string {
|
||
const keystore = wallet.toV3(password, { n: N_FACTOR });
|
||
return makeBlob('text/json;charset=UTF-8', keystore);
|
||
}
|
||
|
||
export function checkKeystoreWallet(
|
||
wallet: IFullWallet,
|
||
privateKey: string,
|
||
password: string
|
||
): boolean {
|
||
const keystore = wallet.toV3(password, { n: N_FACTOR });
|
||
const backToWallet = fromV3(keystore, password, true);
|
||
return stripHexPrefix(backToWallet.getPrivateKeyString()) === stripHexPrefix(privateKey);
|
||
}
|
||
|
||
export async function generateKeystoreFileInfo(
|
||
privateKey: string,
|
||
password: string
|
||
): Promise<KeystoreFile | null> {
|
||
if (!isValidPrivKey(privateKey)) {
|
||
throw new Error('Invalid private key supplied');
|
||
}
|
||
|
||
// Make the wallet from their private key
|
||
const keyBuffer = Buffer.from(stripHexPrefix(privateKey), 'hex');
|
||
const wallet = fromPrivateKey(keyBuffer);
|
||
|
||
// Validate the password and keystore generation
|
||
if (!checkKeystoreWallet(wallet, privateKey, password)) {
|
||
throw new Error('Keystore file generation failed, keystore wallet didn’t match private key');
|
||
}
|
||
|
||
return {
|
||
filename: wallet.getV3Filename(),
|
||
blob: makeKeystoreWalletBlob(wallet, password)
|
||
};
|
||
}
|