Topic: [ANN] bitaddress.org Safe JavaScript Bitcoin address/private key - page 17. (Read 153479 times)

why does this:


not match this:

2014-04-15: status ACTIVE
bitaddress.org-v2.9.0-SHA1-6e9ae5c64d510b53fa39e36a3017d5342b838984.html
 - Split Wallet: Shamir's Secret Sharing for a Bitcoin private key.
   Thanks to Jeff Weiss.

Hi

Many thanks for your hard work. I used bitaddress.org a few weeks ago to create my first ever paper wallet. I was holding a bit too much BTC unsafely until then. 

When I created my paper wallet, which I printed a couple of copies of, I messed up when attempting to laminate them and they both ended up getting chewed. Fortunately I could still scan the QR Codes so I didn't lose my BTC.

The problem I then had was that I didn't want to start from scratch but I still wanted a nice, and laminated, paper wallet. I tried using GIMP to do a recreation but the text was way too blurry when rotated and it was generally below par. I ended up using HTML and CSS to recreate my paper wallets and I'm glad to say it was successful. In doing this I ended up creating a utility that can do all this for me. It includes your background but nothing else. It doesn't recreate the QR Codes either, you have to use your 'Wallet Details' to do that. I think some others may find it useful if they mess up like me, is it okay to distribute it and if so how do I attribute your background to you?

If it's not okay or if you don't mind doing so could you please include the ability to recreate paper wallets from a given private key in bitaddress.org?

Thank you pointbiz for all your exceptional work!

Split wallet is excellent addition. Also, new menu design looks great.

Thanks!

v2.9.0
https://www.bitaddress.org/bitaddress.org-v2.9.0-SHA1-6e9ae5c64d510b53fa39e36a3017d5342b838984.html
https://www.bitaddress.org/bitaddress.org-v2.9.0-SHA1-6e9ae5c64d510b53fa39e36a3017d5342b838984.html.sig
Split Wallet: Shamir's Secret Sharing for a Bitcoin private key.
Thanks to Jeff Weiss.

Shamir's secret will be an excelent upgrade to this (already) good tool!

Keep up the good work!

Cheers!

Shamir's secret sharing is coming next:
https://github.com/pointbiz/bitaddress.org/commit/7e760cb0c61b3f4218e41a239021f839f5fb8b93
https://github.com/pointbiz/bitaddress.org/pull/57
Thanks to Jeff Weiss for the commits.


Example use case 2 of 3:
Division of 3 shares:
1 share in a safety deposit box ("Box")
1 share at Home
1 share at Work
Threshold of 2 can be redeemed in these permutations
Home + Box
Work + Box
Home + Work

Example use case 7 of 13:
Division of 13 shares:
4 shares in a safety deposit box ("Box")
3 shares with good friend Angie
3 shares with good friend Fred
3 shares with Self at home or office
Threshold of 7 can be redeemed in these permutations
Self + Box (no trust to spend your coins but your friends are backing up your shares)
Angie + Box (Angie will send btc to executor of your will)
Fred + Box (if Angie hasn't already then Fred will send btc to executor of your will)
Angie + Fred + Self (bank fire/theft then you with both your friends can spend the coins)

Could anyone program a bitcoin address generator for an hp 50g calculator?

Small display bug (using Safari or Firefox):

1.
At "Paper Wallet" tab, create 2 or more addresses using "Hide Art?" check-box (so no artwork is used). After addresses are generated, if you click again on check-box "Hide Art?" or "BIP38 Encrypt?", private keys start jumping around.

2.
If you do the same as 1., but you also use BIP38 option, after addresses are generated, if you click on "BIP38 Encrypt?" check-box, font size changes.

I tried with Safari and Firefox, can someone test with Chrome?

I just use the Bitcoin Balance app
http://alarmred.com/bitcoinbalance

I would like to say Thank you for this GOLD Standard for Cold storage Paper wallets. ....I would just like to take this time and add my experiences that I have been working with....In the last few week I have upgraded my cell phone to a Samsung Galaxy Note 3...Little did I know ..It has NFC ( near Field Comminication) with Special Programmable Tags...Also The nexus 7 2013 does this also but not as many tags are compatable...There are other threads on the NFC uses with bitcoin on the forum if you look....This week , Staples has a Hot laminator On sale for $29.00 with 5 mill. pocket note card Laminating stock that the Paper wallet fits in nicely..This makes the Paper wallet almost indestructible.....Now comes the NFC tag...I added a NFC tag into the Wallet near the Load QR on the reverse side....This NFC tag when scanned loads the Blockchain.info site for that bitcoin address for easy checking for Coins Stats.....Because the Wallet is hot laminated The Halogram stickers aren't needed because you would need to cut the wallet with sissors to access the Redeem code... The NFC tag is Laminated with in the paper wallet....Just lay Nexus 7 or Samsung Note 3 on to of the paper wallet instantly shows Wallet amount......I also added a Numbered Holagram sticker just the give a serial number for reference and would like to somehow add that into the blockchain as an extra security step...

I would like to make one request....Denominations on the paper wallet..(0.1)(0.01)(0.001)bitcoins Maybe with differant colors.....Or Happy Birthday Wallets....( I like the Christmas Wallet idea)
Maybe  Have a field on the Front that  Users can add  Notes for that Wallet, So a message to someone or the Denomination amount can be added
 
*These wallets that I am making are for LONG term storage....I am trying to fine out how long the Programmable NFC holds it memory

I researched this a bit in putting together these instructions (see below.)




Here's where I asked for feedback/confirmation of this strategy:

http://www.reddit.com/r/Bitcoin/comments/1x15xq/i_shuffled_a_deck_of_52_cards_how_many_playing/

For bitaddress.org you just feed your string of cards into the wallet details tab for "enter private key" and allow it to SHA256 your input.

Yes. Just shuffle a deck well and deal a few cards then enter them, using a code for each card, as the password in a brain wallet generator. Something like 1H for ace of hearts and KS for king of spades.

You need to pick the entropy you want, which will give you how many cards are needed in the deal. The whole deck gives you 52! combinations or 226 bits of entropy. You probably don't need much more than 100 bits though - so, fewer cards.

Number   Bits of
of cards   Entropy
15               82
16               87
17               93
18               98
19               103
20               108
21               113
22               118
23               123
24               128
25               132

Could you possibly make a wallet using a deck of cards? There are an insane amount of combinations possible, and you could at least just make a brainwallet by putting in the cards in order. Then you can just keep the deck in that order to save it.

Hi Pointbiz,

I made a Hungarian translation.
When will it be pulled to the program approximately?

Best regards,
   Wotan777

See the FAQ labeled How do I convert a non-encrypted wallet to use BIP38 here:

https://bitcoinpaperwallet.com/bip38-password-encrypted-wallets/

Basically, you scan (or type in) your private key in the validate tab, click the button to print this out as a paper wallet, and click the checkbox to add BIP38. I know this isn't exactly what you're asking since this is a different website, but bitcoinpaperwallet.com is a fork of bitaddress.org so it might not be too difficult to merge in that code.

i recall a post describing how to modify the code to allow for custom backgrounds to make your own designs of paper wallet but can't seem to locate this. any one happen to have this handy? thanks!

Already implemented here: http://www.bit2factor.org/ https://github.com/mannkind/bit2factor.org

I'm interested in this too. Any programmers who can tell us how much work this might be?

it would be great if you could:

1.  integrate the ability to insert a previously generated uncompressed private key from one's old cold storage wallet, and generate the bip38 encrypted version of that key.

2.  implement the ability to generate a distributed passphrase backup using Shamir's Secret Sharing as implemented here:  https://encryptedbitcoinwallet.com/

Does the speed of PC / computer you have affect the security or randomness of the address created with bitaddress? Any minimum spec advised?

Ok, could you describe how you do it then?