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Author Topic: How to sign a message?!  (Read 141288 times)
electrobit
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May 15, 2018, 08:05:18 PM
 #701

Hi, this is normal?

I clicked on "Sign Message" to create the signature but it cannot.  Sad
The key was generate from B.info

I´ve tried to create a signature but I don´t achieve it. Please help me. Smiley
Did you actually import the Private Key from blockchain.info into Bitcoin Core using the importprivkey command? Or did you just import the "Address"? The error you are getting indicates that you have no imported the private key into your wallet.


Quote
Or when I generate a new address from the software (Bitcoin Core) it appears like this:
Your Bitcoin Core is generating "SegWit" P2SH-P2WPKH addresses (they start with a "3")... Currently, there is no standard method for signing a message using these addresses. You need to generate a "legacy" P2PKH address in Bitcoin Core (starts with a "1")... Then you will be able to sign a message with the "1" address.

To make Bitcoin Core create "1"-type addresses, you need to either start it with the commandline argument -addresstype=legacy or use the following command in the debug console:
Code:
getnewaddress "" "legacy"

Thank you so much for answering. I have this issue now. Those problems I think are fixed, I have a doubt, what is the "wallet passphrase I should put there to create the signature?

I mean this one...

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electrobit
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May 15, 2018, 08:28:43 PM
 #702

Hi, this is normal?

I clicked on "Sign Message" to create the signature but it cannot.  Sad
The key was generate from B.info

I´ve tried to create a signature but I don´t achieve it. Please help me. Smiley
Did you actually import the Private Key from blockchain.info into Bitcoin Core using the importprivkey command? Or did you just import the "Address"? The error you are getting indicates that you have no imported the private key into your wallet.


Quote
Or when I generate a new address from the software (Bitcoin Core) it appears like this:
Your Bitcoin Core is generating "SegWit" P2SH-P2WPKH addresses (they start with a "3")... Currently, there is no standard method for signing a message using these addresses. You need to generate a "legacy" P2PKH address in Bitcoin Core (starts with a "1")... Then you will be able to sign a message with the "1" address.

To make Bitcoin Core create "1"-type addresses, you need to either start it with the commandline argument -addresstype=legacy or use the following command in the debug console:
Code:
getnewaddress "" "legacy"
I still don´t know how to get my private key of the addresses generated from B.info.

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May 15, 2018, 08:38:44 PM
 #703

Hi, this is normal?

I clicked on "Sign Message" to create the signature but it cannot.  Sad
The key was generate from B.info

I´ve tried to create a signature but I don´t achieve it. Please help me. Smiley
Did you actually import the Private Key from blockchain.info into Bitcoin Core using the importprivkey command? Or did you just import the "Address"? The error you are getting indicates that you have no imported the private key into your wallet.


Quote
Or when I generate a new address from the software (Bitcoin Core) it appears like this:
Your Bitcoin Core is generating "SegWit" P2SH-P2WPKH addresses (they start with a "3")... Currently, there is no standard method for signing a message using these addresses. You need to generate a "legacy" P2PKH address in Bitcoin Core (starts with a "1")... Then you will be able to sign a message with the "1" address.

To make Bitcoin Core create "1"-type addresses, you need to either start it with the commandline argument -addresstype=legacy or use the following command in the debug console:
Code:
getnewaddress "" "legacy"
I still don´t know how to get my private key of the addresses generated from B.info.

Hi

I'm sorry but it's not possible to sign a message with the update of blockchain.info.

https://bitcointalk.org/index.php?topic=1428491.0

Support team answered : "the sign message feature is not available in the new wallet"

You'll have to look for another solution (there are many others)

bisou

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electrobit
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May 15, 2018, 08:40:22 PM
 #704

Hi, this is normal?

I clicked on "Sign Message" to create the signature but it cannot.  Sad
The key was generate from B.info

I´ve tried to create a signature but I don´t achieve it. Please help me. Smiley
Did you actually import the Private Key from blockchain.info into Bitcoin Core using the importprivkey command? Or did you just import the "Address"? The error you are getting indicates that you have no imported the private key into your wallet.


Quote
Or when I generate a new address from the software (Bitcoin Core) it appears like this:
Your Bitcoin Core is generating "SegWit" P2SH-P2WPKH addresses (they start with a "3")... Currently, there is no standard method for signing a message using these addresses. You need to generate a "legacy" P2PKH address in Bitcoin Core (starts with a "1")... Then you will be able to sign a message with the "1" address.

To make Bitcoin Core create "1"-type addresses, you need to either start it with the commandline argument -addresstype=legacy or use the following command in the debug console:
Code:
getnewaddress "" "legacy"
I still don´t know how to get my private key of the addresses generated from B.info.

Hi

I'm sorry but it's not possible to sign a message with the update of blockchain.info.

https://bitcointalk.org/index.php?topic=1428491.0

Support team answered : "the sign message feature is not available in the new wallet"

You'll have to look for another solution (there are many others)

bisou
What wallet do you recommend me to do that?
And could you put those solutions here please?

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May 15, 2018, 08:48:25 PM
 #705


What wallet do you recommend me to do that?
And could you put those solutions here please?
[/quote]

I didn't do it yet, you should go to the first message of this thread which explains how you shoud do. You could try with electrum for example.


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EUROPE | AFRICA
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HCP
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May 16, 2018, 03:34:59 AM
 #706

Thank you so much for answering. I have this issue now. Those problems I think are fixed, I have a doubt, what is the "wallet passphrase I should put there to create the signature?
When you created that wallet in Bitcoin Core, you have opted to "encrypt" the wallet file and created a wallet passphrase... It's a password that should only be known to you and is not recoverable or resettable.

If you do not know what this password is, you will be unable to execute any commands that require access to the private keys stored in the wallet (ie. Importing private keys, exporting private keys, creating transactions, signing messages)

If you have any coins in that wallet... And you don't know the passphrase, you will most likely be unable to recover those coins.


I still don´t know how to get my private key of the addresses generated from B.info.
B.info only allows you to export private keys that were manually imported to b.info

To access private keys for addresses generated by their HD wallet, you would need to use Ian Coleman's mnemonic tool (https://iancoleman.io/bip39/). You enter you 12 word recovery phrase at the top, select BIP44 and you should see your addresses and matching private keys shown at the bottom of the page.

NOTE: You should NOT enter your seed into a website unless you fully understand the implications of doing so.

It is recommended to download the website and run it offline. You should also consider the wallet compromised and move any coins to a new wallet to prevent loss of funds etc.

Also, if you don't see your b.info addresses, try clicking the BIP32 tab and then selecting "blockchain.info" from the "client" drop-down box.

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cpoer2011
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May 25, 2018, 03:17:42 AM
 #707

I need a favor here. Is it correct? Thanks in advance

-----BEGIN BITCOIN SIGNED MESSAGE-----
This address belongs to cpoer2011 (uuid 377005) from bitcointalk.org, today is 2018/05/25
-----BEGIN BITCOIN SIGNATURE-----
1AFiVDnvUKm5KGCEwWnDgUvp3yRqCmtt3N
-----BEGIN SIGNATURE-----
G8d46V+KaYmC6piyKrRVlwfVXw3JLhYuBJ7KSJZgQ7K0ZPcoZTbfR6UbdE3FLMCAEldT86iqjrcqtiP24zrDgPQ=
-----END BITCOIN SIGNED MESSAGE-----
HCP
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May 25, 2018, 03:48:45 AM
 #708

I need a favor here. Is it correct? Thanks in advance

-----BEGIN BITCOIN SIGNED MESSAGE-----
This address belongs to cpoer2011 (uuid 377005) from bitcointalk.org, today is 2018/05/25
-----BEGIN BITCOIN SIGNATURE-----
1AFiVDnvUKm5KGCEwWnDgUvp3yRqCmtt3N
-----BEGIN SIGNATURE-----
G8d46V+KaYmC6piyKrRVlwfVXw3JLhYuBJ7KSJZgQ7K0ZPcoZTbfR6UbdE3FLMCAEldT86iqjrcqtiP24zrDgPQ=
-----END BITCOIN SIGNED MESSAGE-----
Quoted... and verified using Electrum.

Doesn't quite verify exactly on brainwalletx as your formatting is incorrect... it SHOULD be:
Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
This address belongs to cpoer2011 (uuid 377005) from bitcointalk.org, today is 2018/05/25
-----BEGIN SIGNATURE-----
1AFiVDnvUKm5KGCEwWnDgUvp3yRqCmtt3N
G8d46V+KaYmC6piyKrRVlwfVXw3JLhYuBJ7KSJZgQ7K0ZPcoZTbfR6UbdE3FLMCAEldT86iqjrcqtiP24zrDgPQ=
-----END BITCOIN SIGNED MESSAGE-----
Which will verify using brainwalletx

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May 25, 2018, 07:18:58 AM
 #709

I need a favor here. Is it correct? Thanks in advance

-----BEGIN BITCOIN SIGNED MESSAGE-----
This address belongs to cpoer2011 (uuid 377005) from bitcointalk.org, today is 2018/05/25
-----BEGIN BITCOIN SIGNATURE-----
1AFiVDnvUKm5KGCEwWnDgUvp3yRqCmtt3N
-----BEGIN SIGNATURE-----
G8d46V+KaYmC6piyKrRVlwfVXw3JLhYuBJ7KSJZgQ7K0ZPcoZTbfR6UbdE3FLMCAEldT86iqjrcqtiP24zrDgPQ=
-----END BITCOIN SIGNED MESSAGE-----
Quoted... and verified using Electrum.

Doesn't quite verify exactly on brainwalletx as your formatting is incorrect... it SHOULD be:
Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
This address belongs to cpoer2011 (uuid 377005) from bitcointalk.org, today is 2018/05/25
-----BEGIN SIGNATURE-----
1AFiVDnvUKm5KGCEwWnDgUvp3yRqCmtt3N
G8d46V+KaYmC6piyKrRVlwfVXw3JLhYuBJ7KSJZgQ7K0ZPcoZTbfR6UbdE3FLMCAEldT86iqjrcqtiP24zrDgPQ=
-----END BITCOIN SIGNED MESSAGE-----
Which will verify using brainwalletx
Should I post it again with the correct format? Thanks
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May 25, 2018, 08:29:22 AM
 #710

Up to you really... at the end of the day... anyone who understands how bitcoin signed messages works, should be able to get it to verify.

You have the 3 basic pieces of information:
1. Message
2. Signing Bitcoin Address
3. Signature

The format you put them in isn't THAT important, it might just confuse a newbie who attempts to verify it on brainwalletx and can't because of the extra "----BEGIN BITCOIN SIGNATURE-----" and the address being in the wrong place.

What system did you use to create the signed message in the first place? Huh And did you copy/paste the output... or did you manually create the "-----BEGIN...." sections and just copy/pasted the 3 individual parts as listed above? Huh

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cpoer2011
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May 25, 2018, 09:01:00 AM
 #711

-----BEGIN BITCOIN SIGNED MESSAGE-----
This address belongs to cpoer2011 (uuid 377005) from bitcointalk.org, today is 2018/05/25
-----BEGIN SIGNATURE-----
1AFiVDnvUKm5KGCEwWnDgUvp3yRqCmtt3N
G8d46V+KaYmC6piyKrRVlwfVXw3JLhYuBJ7KSJZgQ7K0ZPcoZTbfR6UbdE3FLMCAEldT86iqjrcqtiP24zrDgPQ=
-----END BITCOIN SIGNED MESSAGE-----
Rhamon
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May 25, 2018, 12:42:56 PM
 #712

Great tutorial, very helpful for newbies who I have seen having trouble understanding the difference between signing a message and signing a post.

Can you make one for 'How to get a PGP Key', as well?
JeremyB
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May 25, 2018, 01:22:21 PM
 #713

-----BEGIN BITCOIN SIGNED MESSAGE-----
This address belongs to cpoer2011 (uuid 377005) from bitcointalk.org, today is 2018/05/25
-----BEGIN SIGNATURE-----
1AFiVDnvUKm5KGCEwWnDgUvp3yRqCmtt3N
G8d46V+KaYmC6piyKrRVlwfVXw3JLhYuBJ7KSJZgQ7K0ZPcoZTbfR6UbdE3FLMCAEldT86iqjrcqtiP24zrDgPQ=
-----END BITCOIN SIGNED MESSAGE-----

Verified

You may want to stake your address here: https://bitcointalk.org/index.php?topic=996318.0
HCP
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May 25, 2018, 11:43:46 PM
 #714

Can you make one for 'How to get a PGP Key', as well?
Someone already made a very comprehensive guide on PGP just recently... Step by Step with pretty pictures! Wink

Refer here: https://bitcointalk.org/index.php?topic=4059348.0

..JAMBLER.io..Create Your Bitcoin Mixing
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darklus123
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June 08, 2018, 06:21:10 AM
 #715

I need this signed message thing but I'm not that techie when it comes to this kind of stuff, so I'm really confused on how to use it, I have an airbitz wallet, but I can't find the option for signing message, I guess it doesn't have one. So do I just need to change wallet? If so what is the best and secured wallet to use with sign message option? Thanks anyone

I am not familiar with the arbitz wallet but i am going to teach you how did i signed a message using blockchain.info.

Since you already have an existing wallet here are the things that you have to do.

1. Copy the private key of the address on your arbitz wallet(on where to find it. Sorry i dont have any idea since i am not using that wallet)

2.create a new account on blockchain.info there you are going to create a new wallet an online wallet.

3. Click settings on the lower left of your screen.

4. From there you can find an import wallet address. Click that one

5. Paste the wallet private key of your adbitz wallet's address.

6. Lastly you can now see that your adbitz wallet is imported. You can then see a word "action" on the upper left of that address box. Then click signed a message



If you are having a hard time please feel free to ping me or reply to this post. Goodluck

note:please do not forget NOT to share your private key to anyone
denis-z12
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June 14, 2018, 08:47:38 PM
 #716

Hi, i downloaded electrum wallet and signed a message.
Can you please verify this signature and If I have done it properly?

Thanks

INIxt5NgT9dpyQP65cDxYCcLdlqHTgCWAUXG/zvOUVsTHfW+VkITo8+vMsLDExjjnqVBKxK51TrIucrYa6zw578=
snipie
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June 14, 2018, 09:07:24 PM
 #717

Hi, i downloaded electrum wallet and signed a message.
Can you please verify this signature and If I have done it properly?

Thanks

INIxt5NgT9dpyQP65cDxYCcLdlqHTgCWAUXG/zvOUVsTHfW+VkITo8+vMsLDExjjnqVBKxK51TrIucrYa6zw578=

We cannot verify a message without your Bitcoin address and your message text Huh
Of course never reveal your private address

denis-z12
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June 14, 2018, 09:55:49 PM
 #718

Hi, i downloaded electrum wallet and signed a message.
Can you please verify this signature and If I have done it properly?

Thanks

INIxt5NgT9dpyQP65cDxYCcLdlqHTgCWAUXG/zvOUVsTHfW+VkITo8+vMsLDExjjnqVBKxK51TrIucrYa6zw578=

We cannot verify a message without your Bitcoin address and your message text Huh
Of course never reveal your private address
Oh sorry I guess i didnt understand the process properly. I thought I was supposed to post the signature and that will reveal my address and the message.
So do I need to post all 3? message, bitcoin address and signature for someone to verify it?
LTU_btc
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Slava Ukraini!


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June 14, 2018, 10:39:55 PM
 #719

Hi, i downloaded electrum wallet and signed a message.
Can you please verify this signature and If I have done it properly?

Thanks

INIxt5NgT9dpyQP65cDxYCcLdlqHTgCWAUXG/zvOUVsTHfW+VkITo8+vMsLDExjjnqVBKxK51TrIucrYa6zw578=

We cannot verify a message without your Bitcoin address and your message text Huh
Of course never reveal your private address
Oh sorry I guess i didnt understand the process properly. I thought I was supposed to post the signature and that will reveal my address and the message.
So do I need to post all 3? message, bitcoin address and signature for someone to verify it?
Yes, you need to post all these 3 things that you mentioned Wink

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June 15, 2018, 01:09:02 AM
 #720

Is possible to sign a message with any currency or only with bitcoin?
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