How to sign a message?!

[hoop]

How to sign a message in blockchain.info now? I have new wallet address there since they made an update when I tried to sign a message using the latest version of  Bitcoin Core latest stable version which is 0.12.1 is says private keys is not available.

Thank you.

New wallet blockchain.info in Beta mode.

[steven0021]

@shorena
seems like blockchain.info new wallet finally added a sign/verify message feature. link here.
the option is not available on addresses generated by the new wallet though. only the imported ones.

[shorena]

@shorena
seems like blockchain.info new wallet finally added a sign/verify message feature. link here.
the option is not available on addresses generated by the new wallet though. only the imported ones.

thanks added a link.

[FleshRender]

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is UltraFRS of bitcointalk.org and today is 02/05/2015 (May 2nd 2016).
Message was signed at 10:41pm (22:41). This is a test signed message for shorena's signed message tutorial.
-----BEGIN BITCOIN SIGNATURE-----
Version: MultiBit HD (0.3.0)
Comment: https://multibit.org
Address: 1GRKJifrbQ9JBccQokuP65zpoCnPCkMUwH

H6LbO9i+pqICqdesAKBfC69ZKFpMdYk1pBD6imPMhoXafaPN9tMzws2o7EzjPYJrz1xFW7dSIEal/5NVHoHPebM=
-----END BITCOIN SIGNATURE-----

Just testing out this tutorial first time making a signed message as well.

I want someone to verify my new wallet address, I quoted my old one as reference I can't sign from that address because I forgot my password as it was a random bunch of letters and numbers which I wrote down on paper and lost the paper :s This account is verified to be mine as someone checked it two weeks ago in another thread (I forget the name of the thread, it's a popular thread though, think it was the staking account thread). New Signed message below:

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
Hi this is FleshRender a.k.a UltraFRS and this is a signed message from my new wallet due to losing my password and wallet words (were on the same piece of paper which I lost). This messaged wscreated on 18/05/2016 (May 18th 2016) at the local time of 10:54am (GMT).
-----BEGIN BITCOIN SIGNATURE-----
Version: MultiBit HD (0.3.0)
Comment: https://multibit.org
Address: 1CyUwSt5bdD4Zs26zAF2YUgKjyPJU7cDQn

H6NTaiJJy1hn8wl2HLHJijqeIRZf3kB+tFJvO3tQy9ntdnhNqy1K9NVXOgcordEKJk2n7a4lqs2O76iEn/j+JMQ=
-----END BITCOIN SIGNATURE-----

[shorena]

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is UltraFRS of bitcointalk.org and today is 02/05/2015 (May 2nd 2016).
Message was signed at 10:41pm (22:41). This is a test signed message for shorena's signed message tutorial.
-----BEGIN BITCOIN SIGNATURE-----
Version: MultiBit HD (0.3.0)
Comment: https://multibit.org
Address: 1GRKJifrbQ9JBccQokuP65zpoCnPCkMUwH

H6LbO9i+pqICqdesAKBfC69ZKFpMdYk1pBD6imPMhoXafaPN9tMzws2o7EzjPYJrz1xFW7dSIEal/5NVHoHPebM=
-----END BITCOIN SIGNATURE-----

Just testing out this tutorial first time making a signed message as well.

I want someone to verify my new wallet address, I quoted my old one as reference I can't sign from that address because I forgot my password as it was a random bunch of letters and numbers which I wrote down on paper and lost the paper :s This account is verified to be mine as someone checked it two weeks ago in another thread (I forget the name of the thread, it's a popular thread though, think it was the staking account thread). New Signed message below:

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
Hi this is FleshRender a.k.a UltraFRS and this is a signed message from my new wallet due to losing my password and wallet words (were on the same piece of paper which I lost). This messaged wscreated on 18/05/2016 (May 18th 2016) at the local time of 10:54am (GMT).
-----BEGIN BITCOIN SIGNATURE-----
Version: MultiBit HD (0.3.0)
Comment: https://multibit.org
Address: 1CyUwSt5bdD4Zs26zAF2YUgKjyPJU7cDQn

H6NTaiJJy1hn8wl2HLHJijqeIRZf3kB+tFJvO3tQy9ntdnhNqy1K9NVXOgcordEKJk2n7a4lqs2O76iEn/j+JMQ=
-----END BITCOIN SIGNATURE-----

verifies just fine, well done.

[Evildrum]

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is Evildrum @ bitcointalk.org, today is 06-03-2016 and this is a test wallet to sign my first signature for blockchain.info
-----BEGIN SIGNATURE-----
 1AWpm8FUgK2TZyKLWPzS4EgzzqZzQgfbsW
H+eNakCI8617ayJAySKKkIsGG0xZ4BWXsuHZPqxK6ts6eNvATLvXTXVmz8nFBSMls4OWpZ/ha6qcJCD6UlqykFM=
-----END BITCOIN SIGNED MESSAGE-----

[Lutpin]

You have to include the bitcoin address you're signing from Evildrum, without knowing which address was used to sign the message, there's no possible way to know if the message verifies or not.


After your edit (address added), the message verifies (online link).

[Evildrum]

You have to include the bitcoin address you're signing from Evildrum, without knowing which address was used to sign the message, there's no possible way to know if the message verifies or not.


After your edit (address added), the message verifies (online link).

Thank you.. You caught me in a funny spot. Was trying to finish that by pasting all the details and then going back to the original post to copy the format and throw everything in order. Hard to do when I had some one yacking at me on the other end of the phone.

Appreciate you verifying this for me.

Aslo thanks for that link,now I need to learn how to verify a message.

[ahmedjamal1998]

Intro:
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!

I think this is kinda outdated now as the new wallet now has all the old functions up and running.
Yes you can sign with the new wallet ATM.

Good luck

[--Encrypted--]

Intro:
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!

I think this is kinda outdated now as the new wallet now has all the old functions up and running.
Yes you can sign with the new wallet ATM.

Good luck

hmm... I don't see the option to sign a message with and view the private keys of the new addresses anywhere... only imported addresses.

[Text]

There is no option for a new address to get the private keys if you are planning to sign a message for it; indeed, you can only do that for imported addresses only which is the old one. Once you upgrade your account to the beta version there's no going back.

[xht]

How to sign a message in blockchain.info now? I have new wallet address there since they made an update when I tried to sign a message using the latest version of  Bitcoin Core latest stable version which is 0.12.1 is says private keys is not available.

Thank you.

New wallet blockchain.info in Beta mode.

I have tried a new wallet blockchain.info, looks much different to the old one if you know how to sign a message using the blockchain.info a new wallet, please let me know.

[Conus]

I have to ask how to properly post a signed message?  I signed a message through coinbase here: http://coinig.com/?adr=1ChGMGUJqxVSEJChCU7U7uQCjpMeoKuYAM&msg=This+is+Conus%0D%0AThis+is+my+current+Bitcoin+Address&sig=H5PtU9ChXlwb2Wcm%2FLoI8g25tUsgCWWGIcCAEXceu493WsrhTqLipBwImz6EvaIFlqaicULT1UIz6tMM0TQknRM%3D but I see others putting a signed message in some sort of code format.  Please advise if posting this link is proof enough of a signed message or if there si something I am missing?

[shorena]

I have to ask how to properly post a signed message?  I signed a message through coinbase here: http://coinig.com/?adr=1ChGMGUJqxVSEJChCU7U7uQCjpMeoKuYAM&msg=This+is+Conus%0D%0AThis+is+my+current+Bitcoin+Address&sig=H5PtU9ChXlwb2Wcm%2FLoI8g25tUsgCWWGIcCAEXceu493WsrhTqLipBwImz6EvaIFlqaicULT1UIz6tMM0TQknRM%3D but I see others putting a signed message in some sort of code format.  Please advise if posting this link is proof enough of a signed message or if there si something I am missing?

You click on the little # symbol that reads "insert code" when you hover over it (on a PC). It will create code tags for you. Inside these code tags you paste the text from the code block in this post and replace message, address and signature with your data.

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
message
-----BEGIN SIGNATURE-----
address
signature
-----END BITCOIN SIGNED MESSAGE-----

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is Conus
This is my current Bitcoin Address
-----BEGIN SIGNATURE-----
1ChGMGUJqxVSEJChCU7U7uQCjpMeoKuYAM
H5PtU9ChXlwb2Wcm/LoI8g25tUsgCWWGIcCAEXceu493WsrhTqLipBwImz6EvaIFlqaicULT1UIz6tMM0TQknRM=
-----END BITCOIN SIGNED MESSAGE-----

[amsirdiba]

how to sign a message using bitgo.com ?
Thanks

[shorena]

how to sign a message using bitgo.com ?
Thanks

Cant, they use multi sig addresses.

[onlinedragon]

I just searched for an IOS wallet that is able to sign a message. Thought that mycelium could do the job but that option isn't available on IOS only on android version. Is there any option available that works on IOS so I can easy sign a message.

[Daisy14]

I use electrum, don't know if it can be used to sign a message

[steven0021]

@shorena

There's another (easier) way to get the private keys in blockchain.info new wallet using https://dcpos.github.io/bip39/. It was posted here. I think running it offline should be safe enough.

[hakanbalta577]

hi can you tell me how and where can i verify the bitcoin sign message any tool or website