issue to generate specific address private key? about hdwallet HOT 6 CLOSED

let me check first with the current library. Because in the current project, I have install pod.

Got the solution.
Thanks

from hdwallet.

Hi, @sazzadiproliya, thank you for your question.

Our library provides two ways for generating Litecoin(or Bitcoin, Ethereum and Bitcoin Classic) wallets:

1. Simple way, use account generating

let mnemonic = Mnemonic.create()
let seed = Mnemonic.createSeed(mnemonic: mnemonic)
let wallet = Wallet(seed: seed, coin: .litecoin)
let firstAccount = wallet.generateAccount(at: 0) 
let secondAccount = wallet.generateAccount(at: 1) 

It equal "m/44'/2'/0'/0/0" and "m/44'/2'/0'/0/1".
Account have all required fields for creating transaction: private key, public key, address and raw private key.

2. Second way it is creating HD path manually:

let mnemonic = Mnemonic.create()
let seed = Mnemonic.createSeed(mnemonic: mnemonic)
let privateKey = PrivateKey(seed: seed, coin: . litecoin)
// BIP39 key derivation
// m/44'
let purpose = privateKey.derived(at: .hardened(44))      
// m/44'/2'
let coinType = purpose.derived(at: .hardened(2))
// m/44'/2'/0'
let account = coinType.derived(at: .hardened(0))
// m/44'/2'/0'/0
let change = account.derived(at: .notHardened(0))
// m/44'/2'/0'/0/0
let firstPrivateKey = change.derived(at: .notHardened(0))

Now you can get same to first way information:

let address = firstPrivateKey.publicKey.address
let privateKey = firstPrivateKey.get()
let publicKey = firstPrivateKey.publicKey.get()

These two methods give the same result.
Maybe, you have not specified "Hardened" or "Non-hardened" HD nodes? This functionality is implemented in DerivationNode component.

If something is not clear please ask.

from hdwallet.

@sazzadiproliya I checked your mnemonic and got the same result in HDWallet and Coleman.

let mnemonic = "fly weasel genuine enact humor catch prison upper spatial sure mechanic excess hint lazy uphold need violin sport also certain cannon spread include float"
let seed = Mnemonic.createSeed(mnemonic: mnemonic)
let privateKey = PrivateKey(seed: seed, coin: .litecoin)
// BIP44 key derivation
// m/44'
let purpose = privateKey.derived(at: .hardened(44))
// m/44'/2'
let coinType = purpose.derived(at: .hardened(2))
// m/44'/2'/0'
let account = coinType.derived(at: .hardened(0))
// m/44'/2'/0'/0
let change = account.derived(at: .notHardened(0))
// m/44'/2'/0'/0/0
let firstPrivateKey = change.derived(at: .notHardened(0))

let pk = firstPrivateKey.get()
//T4UWHcDKz5hpqbiCwFCoD8ikjZEKxtH1MVHHvSUfbgRjR3WR6JFU
let publicKey = firstPrivateKey.publicKey.get()
//02ddf59d9deb77616c77c8f4c024e0e5137c92c3ad43dd39ad71c8f1e04574110e
let address = firstPrivateKey.publicKey.address
//LXbmmJEuwYrFN21vLGwFkaYz5zeDEDanGv

Also I attached screenshots of Coleman:

from hdwallet.

Yes, you are true. But my question is that public key and address generate same as "https://iancoleman.io/bip39".

But private key generated from HDwallet and Coleman website both are different.

In HD Wallet:

Path: m/44'/2'/0'/0/0
Mainnet ChildKey0: LXbmmJEuwYrFN21vLGwFkaYz5zeDEDanGv
Mainnet PrivateKey0: KxeEqrv9ahjE4m5LPcFvznBNnhb1toG7YHP34dr82iFZu9taYuP7
Mainnet PublicKey0: 02ddf59d9deb77616c77c8f4c024e0e5137c92c3ad43dd39ad71c8f1e04574110e

Path: m/44'/2'/0'/0/1
Mainnet ChildKey1: LPfb4Rm9WJNQac1WSFwFLN4FkQGY3wecBy
Mainnet PrivateKey1: L1mav5PTxHgW2jeZHDZvSHCcPmTP8CDMebNbSPtibatYXeNHG6vm
Mainnet PublicKey1: 026bc2812d146cd2f4aeec2d2a5d1c69bbadc735a3f7ff30ac73587f327eb427d9

In https://iancoleman.io/bip39

Path: m/44'/2'/0'/0/0
LXbmmJEuwYrFN21vLGwFkaYz5zeDEDanGv
02ddf59d9deb77616c77c8f4c024e0e5137c92c3ad43dd39ad71c8f1e04574110e T4UWHcDKz5hpqbiCwFCoD8ikjZEKxtH1MVHHvSUfbgRjR3WR6JFU

Path: m/44'/2'/0'/0/1
LPfb4Rm9WJNQac1WSFwFLN4FkQGY3wecBy
026bc2812d146cd2f4aeec2d2a5d1c69bbadc735a3f7ff30ac73587f327eb427d9
T7brMpgeMff6oaHRprWnedjzLd6hCHEFToGrJCXGAZ4i3XvorQMs

But My question is that address and public key generate same but private key generated differently.

Implemented Method:

func testMainnetChildKeyDerivation() {
let privateKey = PrivateKey(seed: seed, network: .main(.litecoin))

    // BIP44 key derivation
    // m/44'
    let purpose = privateKey.derived(at: .hardened(44))
    
    // m/44'/2'
    let coinType = purpose.derived(at: .hardened(2))
    
    // m/44'/0'/0'
    let account = coinType.derived(at: .hardened(0))
    
    // m/44'/0'/0'/0
    let change = account.derived(at: .notHardened(0))
    
    // m/44'/0'/0'/0/0
    
    for i in 0..<2{
        let firstPrivateKey = change.derived(at: .notHardened(UInt32(i)))
        print("Mainnet ChildKey_",i,": ",firstPrivateKey.publicKey.address)
        print("Mainnet PrivateKey_",i,": ",firstPrivateKey.get())
        print("Mainnet PublicKey_",i,": ",firstPrivateKey.publicKey.get())
    }
}

change in Class:

name: PrivateKey.swift

1. public func get() -> String {
   switch self.network.coinType {
   case Network.main(.bitcoin).coinType:
   return self.wif()

    case Network.test(.bitcoin).coinType:
        return self.wif()
    
    case Network.main(.ethereum).coinType:
        return self.raw.toHexString()
    
    case Network.test(.ethereum).coinType:
        return self.raw.toHexString()
        
    case Network.main(.litecoin).coinType:
        return self.wif()
        
    case Network.test(.litecoin).coinType:
        return self.wif()
     
    case Network.main(.bitcoinCash).coinType:
        return self.wif()
    
    case Network.test(.bitcoinCash).coinType:
        return self.wif()
        
    default:
        return "None"
    }
   

   }

2. public func wif() -> String {
   if self.network.coinType == Network.main(.bitcoin).coinType {
   var data = Data()
   data += UInt8(0x80)
   data += raw
   data += UInt8(0x01)
   data += data.doubleSHA256.prefix(4)
   return Base58.encode(data)
   }else if self.network.coinType == Network.main(.litecoin).coinType {
   var data = Data()
   data += UInt8(0x80)
   data += raw
   data += UInt8(0x01)
   data += data.doubleSHA256.prefix(4)
   return Base58.encode(data)
   }
   return "WIF is not specified"
   }

if any thing please let me know. Please provide a solution or guide me. I have tried to generate private as per iancolemean site.

from hdwallet.

@sazzadiproliya, please provide your HDWallet version, and mnemonic that u used in your tests.

from hdwallet.

Hello, I m using 24-word seed.

let mnemonic = "fly weasel genuine enact humor catch prison upper spatial sure mechanic excess hint lazy uphold need violin sport also certain cannon spread include float"

let seed = Mnemonic.createSeed(mnemonic: mnemonic)

from hdwallet.