Many thanks to everyone who adivsed on and helped test the development of this wallet. I am looking forward to continuously improving it throughout 2015.

As I previously wrote, Ninki Wallet will be released as a Chrome App for the desktop (supported on Mac, Linux and Windows) and iOS and Android for mobile.

I expect the first mobile versions to be released early 2015.

https://ninkip2p.com

Cheers

Ben

Ninki Wallet is a new standard in Bitcoin wallet technology. A highly secure, user friendly wallet that allows you to build your own payment network with your friends, clients and customers.

Say goodbye to unreadable Bitcoin addresses and QR code scanning, once on your network, sending Bitcoin is as simple as pointing and clicking!

Feature Highlights

- Complete control of your funds.
- Your keys- Print one, save one.
- 2 of 3 Multi-Signature accounts
- Counter signing service
- Deterministic Addresses
- 2 Factor Authentication
- Add your contacts to your secured network
- Prevents address spoofing and malware
- Transaction and velocity limits
- Click on your contact, press send
- No Bitcoin addresses required
- Create invoices for your clients
- Invoices encrypted and signed using PGP
- Pay invoices with a single click
- View a history of your invoices
- Enter amounts in Bitcoin or Fiat
- View the Bitcoin price in major currencies
- View your balance in BTC or Bits
- Search your transaction history
- Add a profile picture
- Update your status

Coming soon...

- Pair your Android or iOS device
- Spend on the go!

Thanks, I took a look at the site and will integrate soon...

Cheers

Ben

Thanks!

Ninki Wallet Network Beta release is finally here:

Bip32 Multisig Wallet Network

- Please use small amounts for testing.
- Please be sure to back up your mnemonic keys
-For the period of the beta test, the service will be unavailable between 9:00 pm and 10:00 pm (Tokyo Time) to allow us to roll-out new features and fixes.

https://ninkip2p.com/

https://ninkip2p.com/wallet

Please send any bug reports to bugs@ninkip2p.com

The javascript is now minified and the source is on github (I will do my best to keep the git in sync for the duration of the Beta test)

https://github.com/Ninkip2p/NinkiWallet


Cheers

Ben

Yes, but my point is, this isn't a password or a spec for a brain wallet, it is computer generated entropy, lets say 256 bits, with a csprng, being represented as a word list. So the only use case I can see, if you use the specification's default password, is slowing down an attacker who has seen a part of your phrase and so significantly reduced the search space. The stretching makes sense if you use a chosen password and assume your seed phrase will not be kept secret.


I was pointed to this discussion which gives some insight into the thinking:

https://github.com/bitcoin/bips/pull/17

Cheers

Ben

I was reading the BIP39 spec for generating mnemonics from bits of entropy and so derive a n word phrase. The mnemonic phrase is then stretched using 2048 rounds of sha512, with an optional salted password.

I am finding it difficult to rationalise the 2048 rounds. Assuming the default password is used ("mnemonic" according to the specification) all the 2048 rounds would do is slow down a brute force attack on guessing an n bit key.

What is the attack vector for this? The one I came up with was, if someone saw your phrase and partially memorized it, it would massively slow them down trying various combinations to discover the seed.

Am I missing something important here?

Do old accounts dont work anymore or do i something wrong with my credentials?

all accounts from alpha 1 have been deleted as there was a significant change to the data structure. New accounts will have to  be created for testing

Sorry about this- the next release will be the main-net beta release and so again all accounts will be deleted. After that the accounts won't be deleted.

Cheers

Ben

The wallet works in the same way as blockchain.info in terms of data storage, however our wallet is a 2 of 3 multi-sig so it is a little more involved.

There are three keys:
One stored online by you on our servers- encrypted by you. We cannot know what this data is.
One stored offline by you. This is backed up when you create the wallet. We cannot know what this is.
One stored encrypted on our servers by us. On it's own this is not enough to spend any funds in the wallet.

If our servers get compromised, the attackers still can't spend the funds as they would have to crack our encryption and your encryption. This is the same as blockchain.info currently apart from they have a single key.

So you are right in terms of trusting us to keep our services up and running, but we don't have control over your wallet. You have ultimate control. All key creation and transaction signing is done in the browser/device locally and we will open source the code-base to prove it.

In the event our service goes offline you can reclaim all your funds by using your online and offline key.

Happy to provide more details.

Cheers

Ben

BiTJack, thanks! 

Upgrade done. Site back online for testing.

Postponing alpha testing pending some infrastructure upgrades. Should be done within 1 business day.

Cheers

Ben

Alpha 2 is live:

Mainly code reworking but new features include:

- Email verification on signup, authenticator setup
- Recover your guid
- Reset a lost authenticator
- Change password
- Invoices - create an invoice for a contact, receive invoices, pay/reject invoices
- Fingerprint is now a Ninki phrase (see above thread)
- Lots of bug fixes

I haven't made as much progress as I would like on tidying up the code and getting it on github. This is my priority number one before the next and final alpha release.

One final thing, all accounts from alpha 1 have been deleted as there was a significant change to the data structure. New accounts will have to  be created for testing.

Cheers

Ben

I was moving nameservers so the site was down for a while. I am hoping to do the alpha 2 release next week, and hopefully open source the javascript at the same time for review.

I will look at the "clean" word lists for the beta release I think, thanks for your advice on how to approach it.

Cheers

Ben

dabura667

I've implemented this and it works great, the only thing I don't like is that some of the words are pretty negative, e.g. suicide and will be on their homepage forever, so I propose to replace some of the words with "happy ones", I assume this will make the method non-standard but as this is not for Bitcoin keys and rather a site specific validation procedure I don't see this as a big issue. Any thoughts?

Cheers

Ben

thanks dabura667


Love the idea! Will try and get it in the next alpha release later this week.

Cheers

Ben

This is just for the Alpha test (on Testnet). Once I am happy with the state of the code it will be published open source (the client side parts) and the Javascript files will be minified, rather than obfuscated.

Cheers

Ben

Ninki Wallet: Connecting with your contacts

https://www.youtube.com/watch?v=u4b9neosTg8

Part 2 of the series goes though creating a wallet and connecting with a contact

Introduction to Ninki Wallet, an Open PGP Wallet Network.

A Wallet that removes the need for copying/pasting/QR coding Bitcoin addresses!

This video gives a brief introduction to the main features. Next week I will publish more videos going inot the details of how it works, and also many more features.

The wallet is currently in Alpha Testing on the Bitcoin Testnet network

(You might need to set your youtube settings to high quaility as Google have been messing around with things recently)

http://www.youtube.com/watch?v=uGmpfn3tCKA