Bitcoin Forum
April 25, 2018, 07:54:28 AM *
News: Latest stable version of Bitcoin Core: 0.16.0  [Torrent]. (New!)
 
   Home   Help Search Donate Login Register  
Pages: [1]
  Print  
Author Topic: Question about transaction signing vs. message signing  (Read 1158 times)
bitvinda
Newbie
*
Offline Offline

Activity: 2
Merit: 0


View Profile
June 17, 2016, 12:03:45 PM
 #1

I've been playing with coinb.in recently to try to better understand how transactions are put together. It's been massively eye-opening so far, but I've reached to a point now where I'm stuck and wondering if what I'm trying to do is even possible.

I've created a transaction in coinb.in using the public address and inputs of an address from my mycelium wallet. I don't have direct access to the private key and I don't really want to put the HD seed into a key generator to try to find the private key for the address I'm looking for. Is there any way to sign the raw transaction from the mycelium wallet as is? Maybe through using the 'sign message' functionality or some variant of it?
1524642868
Hero Member
*
Offline Offline

Posts: 1524642868

View Profile Personal Message (Offline)

Ignore
1524642868
Reply with quote  #2

1524642868
Report to moderator
1524642868
Hero Member
*
Offline Offline

Posts: 1524642868

View Profile Personal Message (Offline)

Ignore
1524642868
Reply with quote  #2

1524642868
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1524642868
Hero Member
*
Offline Offline

Posts: 1524642868

View Profile Personal Message (Offline)

Ignore
1524642868
Reply with quote  #2

1524642868
Report to moderator
1524642868
Hero Member
*
Offline Offline

Posts: 1524642868

View Profile Personal Message (Offline)

Ignore
1524642868
Reply with quote  #2

1524642868
Report to moderator
1524642868
Hero Member
*
Offline Offline

Posts: 1524642868

View Profile Personal Message (Offline)

Ignore
1524642868
Reply with quote  #2

1524642868
Report to moderator
achow101
Moderator
Legendary
*
Offline Offline

Activity: 1386
Merit: 1290


3F1Y9yquzvY6RWvKbw2n2zeo9V5mvBhADU


View Profile WWW
June 17, 2016, 03:22:34 PM
 #2

It is not possible. Although transaction signing and message signing are similar, it is what happens to the data afterwards and how the data is treated that makes the difference and makes those two operations incompatible.

Monnt
Legendary
*
Offline Offline

Activity: 840
Merit: 1000


View Profile
June 19, 2016, 09:14:35 AM
 #3

Although they're both signing something, they're signing different things different ways for different uses. Sure, you have to use your private key to sign the message, but i'm not so sure you have access to that, as you've said. Maybe try finding the private key from the seed offline?
Pages: [1]
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!