Bitcoin Forum
May 23, 2024, 11:43:18 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
   Home   Help Search Login Register More  
Bitcoin Forum > Bitcoin > Bitcoin Discussion > "Paper Wallet" 2.0 using Shamir's Secret Sharing Scheme (idea)
Pages: [1]
« previous topic next topic »
  Print  
Author Topic: "Paper Wallet" 2.0 using Shamir's Secret Sharing Scheme (idea)  (Read 5192 times)
bits4coins (OP)
Newbie
*
Offline Offline

Activity: 21
Merit: 0


View Profile
March 03, 2013, 08:48:46 PM
 #1
Wouldn't it be by many factors more secure to apply Shamir's Secret Sharing Scheme on important private keys for decentralized offline storage?
web based here: http://passguardian.com/
github open-source project: https://github.com/amper5and/secrets.js/

It seems to me this would be the next step in offline / paper wallets.

Anyone know if any bitcoin wallet has built in support for something like this?
Meni Rosenfeld
Donator
Legendary
*
Offline Offline

Activity: 2058
Merit: 1054



View Profile WWW
March 03, 2013, 08:49:44 PM
 #2
Armory.
1EofoZNBhWQ3kxfKnvWkhtMns4AivZArhr   |   Who am I?   |   bitcoin-otc WoT
Bitcoil - Exchange bitcoins for ILS (thread)   |   Israel Bitcoin community homepage (thread)
Analysis of Bitcoin Pooled Mining Reward Systems (thread, summary)  |   PureMining - Infinite-term, deterministic mining bond
bits4coins (OP)
Newbie
*
Offline Offline

Activity: 21
Merit: 0


View Profile
March 03, 2013, 08:51:44 PM
 #3
Quote from: Meni Rosenfeld on March 03, 2013, 08:49:44 PM
Armory.

I haven't noticed that part of Armory. Could you drop me a link, thx!
Meni Rosenfeld
Donator
Legendary
*
Offline Offline

Activity: 2058
Merit: 1054



View Profile WWW
March 03, 2013, 09:28:38 PM
 #4
Quote from: bits4coins on March 03, 2013, 08:51:44 PM
Quote from: Meni Rosenfeld on March 03, 2013, 08:49:44 PM
Armory.

I haven't noticed that part of Armory. Could you drop me a link, thx!
I know that Alan has discussed this at https://bitcointalk.org/index.php?topic=139625.0, not sure which version starts supporting this.
1EofoZNBhWQ3kxfKnvWkhtMns4AivZArhr   |   Who am I?   |   bitcoin-otc WoT
Bitcoil - Exchange bitcoins for ILS (thread)   |   Israel Bitcoin community homepage (thread)
Analysis of Bitcoin Pooled Mining Reward Systems (thread, summary)  |   PureMining - Infinite-term, deterministic mining bond
bluemeanie1
Sr. Member
****
Offline Offline

Activity: 280
Merit: 257


bluemeanie


View Profile WWW
June 13, 2013, 06:09:19 PM
 #5
Just ran across this thread... I believe this does add some key features to paper wallets.  I started my thinking with Visual Cryptography, which is based on Shamir Secrets.

https://bitcointalk.org/index.php?topic=226671.msg2386001#msg2386001

You could make a fairly robust paper bitcoin scrip scheme using this kind of crypto.

-bm
Just who IS bluemeanie?    On NXTautoDAC and a Million Stolen NXT

feel like your voice isn't being heard? PM me.   |   stole 1M NXT?
Abdussamad
Legendary
*
Offline Offline

Activity: 3612
Merit: 1564



View Profile
June 14, 2013, 04:11:00 AM
 #6
Armory can do M of N backups and it uses SSSS:

https://bitcointalk.org/index.php?topic=149820.0
WinVery.com
Full Member
***
Offline Offline

Activity: 235
Merit: 100



View Profile
June 14, 2013, 06:38:41 AM
 #7
Quote
Those who would give up Essential Liberty to purchase a little Temporary Safety, deserve neither Liberty nor Safety.

 Roll Eyes

Liquidity gents.
neizvestnyi
Newbie
*
Offline Offline

Activity: 6
Merit: 0


View Profile
October 25, 2013, 01:07:40 PM
 #8
There's also Shamir's secret sharing iPhone app (https://itunes.apple.com/us/app/passbin/id718617728?ls=1&mt=8) that might be useful to the Bitcoin community, specifically to manage bitcoin and other cryptocurrencies account continuity.
rxl
Newbie
*
Offline Offline

Activity: 1
Merit: 0


View Profile
February 06, 2014, 04:18:09 PM
 #9
Here's a python implementation of Shamir's Secret Sharing Scheme: https://github.com/halfmoonlabs/secretsharing. Compared to all the other implementations I've seen, this library is actually quite easy to read and understand, which is huge IMO.
nicolasgramlich
Full Member
***
Offline Offline

Activity: 225
Merit: 100


View Profile
March 01, 2014, 03:32:45 AM
 #10
Quote from: rxl on February 06, 2014, 04:18:09 PM
Here's a python implementation of Shamir's Secret Sharing Scheme: https://github.com/halfmoonlabs/secretsharing. Compared to all the other implementations I've seen, this library is actually quite easy to read and understand, which is huge IMO.

Well, maybe that is because you wrote it yourself "rxl"? Tongue

... actually is very easy to read. Even without knowing Python.
cypherdoc
Legendary
*
Offline Offline

Activity: 1764
Merit: 1002



View Profile
March 01, 2014, 04:18:51 AM
 #11
https://encryptedbitcoinwallet.com/
Pages: [1]
  Print  
Bitcoin Forum > Bitcoin > Bitcoin Discussion > "Paper Wallet" 2.0 using Shamir's Secret Sharing Scheme (idea)
 « previous topic next topic »
 
Jump to:  

Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!