~snip~
I import address and click on more options but its don't showing sign Message. It's showing Archive, Transfer, Spend.
Based my thread in my local sub https://bitcointalksearch.org/topic/tutorial-sign-message-address-bitcoin-pada-blockchaininfo-wallet-2946861, I'll make this thread more completly with this, especially how to make sign messages bitcoin address at blockchain.info walletI import address and click on more options but its don't showing sign Message. It's showing Archive, Transfer, Spend.
Question : If there is already a thread about that, why did you created this thread man? Are you wanted to spam or something?! Go away!
Answer : No dear, certainly I'm not. I did this because Shorena still didn't give detail a tutorial on how to sign a message with new version blockchain wallet.
-snip-
Just to make clear why I didnt add this to the post.
#1 I just now noticed it and lately I tend to be away from the forum for long periods of time.
#2 I think this tutorial is dangerous or at the very least I have no way to determine how safe it is.[1] It requires you to manually handle private keys and trust (or understand) source code that is not widely used as a wallet. I think the steps could be improved by not relying on the github repo, but rather on e.g. electrum. Then again, importing a key from electrum into bc.i would be pointless as you could just sign with electrum directly.
[1] Is the code sound? Is the entropy generation sound? Are the steps given in a language I dont understand good? Is focus drawn to the possible pitfalls of handling unencrypted private keys in your clipboard? Why this repo and not e.g. bitaddress or brainwallet, etc.?
Edit: I just tested it, addresses created with new wallets still can not be used to sign messages with.
#2. About the security, I totally agree with you.
I already warned about this, by posting this:
~snip~
EDIT:
For some reason, I'm not suggest you to use blockchain.info as your main wallet.
This is just tutorial, how to make signature message at b.info wallet.
EDIT:
For some reason, I'm not suggest you to use blockchain.info as your main wallet.
This is just tutorial, how to make signature message at b.info wallet.
Following your Dos and Don't
How can I sign a message in the new blockchain?It seems I can't find a sign button there,I've only seen the verify one.It's not in the manage options.
By blockchain I assume you are referring to blockchain.infoTo sign a message, go to the "Settings" tab on left, Click on "Addresses", Click on "More Options" in front of your required address, Choose "Sign Message" .
Does the new version allow signing messages? My last info is only the old wallet version does.
~
I added an example how to post the signed message for the blockchain.info part here.
~snip~
Blockchain.info v2 2016.05.11
return to index
Update (2017.5.13): According to user apoorvlathey it is now possible to sign messages with the new version as it was in the past. User sHeRiLyN1618 reports that this is only possible for imported addresses, but not addresses generated with the service. For more information read the posts starting from here -> https://bitcointalksearch.org/topic/m.18991565
Update (2016.5.11): It is now possible to sign messages with imported private keys.
Th0ur007 wrote a step by step here -> https://bitcointalksearch.org/topic/guide-how-to-signverify-message-in-new-blockchain-wallet-1467458
Note: Blockchain.info's new wallet does not allow you to sign a message, nor does it allow you to easily export the private key in order to sign with a different wallet. There is a crude work around here -> https://docs.google.com/document/d/1-2l6xOqcbjs9QWEqSh72RD1d8EEdvG_hQuEXw_f_o6w/edit
Use at your own risk!
~snip~
I added an example how to post the signed message for the blockchain.info part here.
~snip~
Blockchain.info v2 2016.05.11
return to index
Update (2017.5.13): According to user apoorvlathey it is now possible to sign messages with the new version as it was in the past. User sHeRiLyN1618 reports that this is only possible for imported addresses, but not addresses generated with the service. For more information read the posts starting from here -> https://bitcointalksearch.org/topic/m.18991565
Update (2016.5.11): It is now possible to sign messages with imported private keys.
Th0ur007 wrote a step by step here -> https://bitcointalksearch.org/topic/guide-how-to-signverify-message-in-new-blockchain-wallet-1467458
Note: Blockchain.info's new wallet does not allow you to sign a message, nor does it allow you to easily export the private key in order to sign with a different wallet. There is a crude work around here -> https://docs.google.com/document/d/1-2l6xOqcbjs9QWEqSh72RD1d8EEdvG_hQuEXw_f_o6w/edit
Use at your own risk!
~snip~
Luckily for me, I found this thread in my local board: https://bitcointalksearch.org/topic/cara-mengetahui-private-key-di-wallet-blockchaininfo-2107937, this thread give a simple tutorial on how to find a private key of blockchain.info wallet address.
Firstly, I make a backup of blockchain.info wallet using wallet recovery phrase, then I write 12-16 "magic word" at notepad.
Two, I download this tools: https://github.com/iancoleman/bip39, then I went offline.
I run this tools in offline mode, I fill my 12-16 "magic word" to BIP39 Mnemonic form, and I get result privkey instantly.
Video mode: https://youtu.be/xwksiStDZD4 (with Indonesian subtitle)
After I have my private key, I follow this step https://bitcointalksearch.org/topic/m.18991565
And yes, I can export the priv.key to electrum 3.0.6 too, and both of them have same result signature.
EDIT: at step 5, remove "colour address" and fill it with priv.key
Its works for me and some user at my local sub
Big thanks for this thread, shorena.
I'll translate this thread in my local sub if you dont mind and give me permission for this
And I'll big mark Dos and Dont for warning, then put additon from JeremyB's and me.
