Wait4Wallet

Delayed Access Crypto Wallet

Presentation

The purpose of this project is to provide a tool to the crypto enthusiats who want to delay the access to their crypto wallet.

In order to generate your delayed access wallet you need to dedicate as much time for the creation than for the access.

If you want to delay the access to your wallet to about 1 hour, then you need to dedicate 1 hour to build it.

Building

For a given time amount of time :

walletA -> walletB + secret

• The wallet A is your backup wallet
• The wallet B is your delayed access wallet
• Keep the generated secret along the backup wallet

Accessing

walletA + secret -> walletB

• For a given hardware, the accessing time should be slightly equal to the time dedicated to build the wallet in the first place.

Installation

CLI

npm install -g wait4it

Node.js

npm install wait4it

CLI usage

Build a delayed access wallet

From a mnemonic

wait4wallet --duration <duration> --mnemonic <mnemonic>

$ wait4wallet --duration 1h --mnemonic "protect private life [...]"

0%      1 hour left 
// 1h hour of computation 
100%    Completed.

Mnemonic :
detail error [...] potato

Master private key :
xprv[...]p1v

Master public key :
xpub[...]UFS

Rebuild this wallet in 1 hour with :
wait4wallet --secret o4l --mnemonic "protect private life [...]"

From a xprv

wait4wallet --duration <duration> --xprv <xprv>

$ wait4wallet --duration 1h --xprv xprv[...]sdj

0%      1 hour left 
// 1h hour of computation 
100%    Completed.

Master private key :
xprv[...]ofd

Master public key :
xpub[...]Wsd

Rebuild this wallet in 1 hour with :
wait4wallet --secret dDg --mnemonic xprv[...]sdj

Access a delayed wallet

From a mnemonic

wait4wallet --secret <secret> --mnemonic <mnemonic>

$ wait4wallet --secret dR4 --mnemonic "protect private life [...]"

0%      1 hour left 
// 1h hour of computation 
100%    Completed.

Mnemonic :
detail error [...] potato

Master private key :
xprv[...]p1v

Master public key :
xpub[...]UFS

From a private key

wait4wallet access-xprv <secret> <xprv>

$ wait4wallet --secret dR4 --xprv xprv[...]1sd

0%      1 hour left 
// 1h hour of computation 
100%    Completed.

Mnemonic :
detail error [...] potato

Master private key :
xprv[...]pl2

Master public key :
xpub[...]Ua4

Programmatic usage

Use this library in your project

Build

From Mnemonic

const {Wait4Wallet} = require("wait4wallet")

const wallet = Wait4Wallet
    .fromMnemonic()
    .withDelay('1h')

const newMnemonic = wallet.run('protect private life [...]')
// 1 hour of computation
const secret = wallet.secret
// Fund the wallet & store secret

From private key

const {Wait4Wallet} = require("wait4wallet")

const wallet = Wait4Wallet
    .fromPrivateKey()
    .withDelay('1h')

const newXprv = wallet.run('xprvsdf[...]poi')
// 1 hour of computation
const secret = wallet.secret
// Fund the wallet & store secret

Access

From mnemonic

const {Wait4Wallet} = require("wait4wallet")

const wallet = Wait4Wallet
    .fromMnemonic()
    .withSecret('5tSh')

const newMnemnic = wallet.run('install scatter [...] usage')  // take 1h to perform
// Access your fund

From private key

const {Wait4Wallet} = require("wait4wallet")

const wallet = Wait4Wallet
    .fromPrivateKey()
    .withSecret('5tSh')

const newXprv = wallet.run('xprvstsh[...]nkmt') // take 1h to perform
// Access your fund

Under the hood

The implementation of this tool is dead simple.

For a given amount of time, the tool is looping on BIP85 derivation from an initial wallet, once the time limit is reached, the tool print out the last derivation and the number of iterations associated.

It's then always possible to access this wallet knowing the initial wallet and the iteration count with the required amount of time.

The secret is this number converted to base 36.

Don't trust, verify

Because of the cryptographic nature of this project I encourage you to audit the source code if you consider to use it for your own wallets.

https://github.com/Yug-Damon/wait-wallet