Topic: Blockchain.info - Bitcoin Block explorer & Currency Statistics - page 110. (Read 482699 times)

I implemented this as you asked:

https://github.com/bitcoinjs/bitcoinjs-lib/commit/9b2f94a028a7bc9bed94e0722563e9ff1d8e8db8

When ErebusBat asked for this on IRC it seemed like a fairly innocent feature request, I had no idea what I was getting myself into. A few hours later I was implementing the Tonelli-Shanks algorithm (another JavaScript first I think?) and calculating Legendre symbols.

The reason for all the complexity? Bitcoin's message signing facility uses compact signatures which use public key extraction to recover the pubkey from the signature. The Bitcoin core devs happily do their little calls out to the OpenSSL API, not realizing they just pulled in pages worth of algorithms.

Public key extraction is also very computationally expensive. Generating compact signatures is even worse, as the algorithm does 1-4 test verifications while signing. There are some more optimizations I can do, but this will almost certainly be too slow to run on smartphones. (Unless you find a way to hook up BitcoinJS' BigInt to a native big integer implementation of course.)

There is still one bug I have to figure out related to our implementation of Shamir's trick. Hopefully I'll be able to do that this weekend. We could really use a proper suite of unit tests for bitcoinjs-lib.

(The four test cases at the bottom of message.js will obviously be removed once I officially release this.)

So now that the BCI wallet is available on the AppStore (yes full version); do you think apple will shut it down before Nov 2012?

http://betsofbitco.in/item?id=562

I updated mine,  and everything worked even better.
Some bugs were fixed, such as the last line in the address book being hard to click.
Thanks Puik!

Puik, I installed the IOS blockchaininfo wallet some time back before it was pulled from the appstore. I now get the option to update it.
If I update will it preserve my private keys and will it work as a full wasset as before?
I don't want to risk loosing the functionality my current version has.

If it can be compiled to js then it would be fine. Might be difficult to interact with bitcoin-js though, I've never used coffee script .


A URI error normally mean the password is incorrect, are you using any password manging extensions like lastpass? Any other browser extensions installed? What browser are you using?


A minority stake has been sold to a trusted member of the bitcoin community who would prefer to stay anonymous for the time being while the paper work is finalised. The Companies houses docs will not reflect this yet. I am still in charge of operations and there are no plans for this to change.


I answered this on the Site. Thanks.

Hi Ben,

The following question was posted by someone on StackExchange. Just thought I'd repeat it here since I don't know how often you read the SE site.

It is weird the UK company register charges for that information

Can you say who holds the rest of the equity, or how much you still have? 

Are you still in charge of operations?

oh, so that's why 176.9.135.190 firewalled me

not the proper solution, just slows down the distribution of your blocks

like:

https://blockchain.info/inv/00000000000004abca35e6ba287d591901e3abf0077603190167f709df3995e7

the last block, it doesn't report 5.9.24.81, it reports BTC Guild

i assume it's based on the 'CoinBase' message

Thanks for fixing the problems I was having with regards to balances being incorrect!

https://bitcointalk.org/index.php?topic=75673.140

Thanks.

Upon running integrity check I get verified and the same error backing up wallet.  Chrome JS console reports two errors.

At Wallet Decrypt
URIError
arguments: undefined

At import and verification
Failed to load resource: the server responded with a status of 500 (Internal Server Error)

Can it be in coffee script?  Or is that a deal breaker?

Thanks minimal. The Sites donation address is 1JArS6jzE3AJ9sZ3aFij1BmTcpFGgN86hA. I haven't really said anything about it much but the Site is much better funded now, so donations aren't critical. I am still the the main developer but no longer hold 100% equity.


Ah the form elements were being erroneously hidden when double encryption was off. This should be fixed now. (Thanks BkkCoins)


Sign Message isn't implemented as I couldn't figure out how to produce a compacted signature in javascript.

10 BTC bounty for anyone who can finish the function below (depends on bitcoin-js) and produce a verifyMessage as well.


Nice tip, thanks.

I just thought I'd point out to users that they can use the Firefox "Add To Search Bar" add-on to make a search bar item for bitcoin addresses via blockchain.info.

Once you have that add-on installed you just right-click in the search field on the web site and choose "Add To Search Bar". This adds an easy quick way to lookup addresses or any other info that blockchain.info can search on.

P2pool.info is showing block 193781 as a p2pool block even though it isn't

I checked this on my wallet and get the same. So I used Firebug to inspect the html elements and I see the IP text and current IP fields present but they are display=none when they need to be display=block to show up. Judging by the code the intention is that they only show when double encryption is enabled. I say this because the class name for those two elements is "control-group double-encryption-on".

So either it's a bug or not intended to be available but not documented as such. I don't want to change my wallet to double encryption to test. But I did remove the "double-encryption-on" class name and they do show up then. Don't know if that works.

---- aside
I wonder if it might be possible to also support cidr networks, eg. 1.2.3.4/24 or maybe easier than that a more "non-techie" style eg. 1.2.3.4-56 for a range.

I'm missing something basic then obviously.

I mark the checkbox, I see only "Updated IP Lock Setting".   I uncheck the box, I again see only "Updated IP Lock Setting".  There is no IP Address or comma separated list shown anywhere. 

so how can i sign a message to bitcoin-otc with this thing?

The speed at which this service is evolving is astonishing!

Thank you piuk!

Is "1PkHvfna7fHNi1BnbYjFe5tRDLQZqLYLyz" correct address for donations?

Use a comma separated list. I should clarify that better.