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Author Topic: How to sign a message?!  (Read 139551 times)
Plung
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November 05, 2017, 03:43:19 PM
 #601

made this one

Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
This is PLUNG from bitcointalk.org and today is 5/11/2017
-----BEGIN SIGNATURE-----
1KVteegwUf8tdztGZQ2FNbKcmbMw16fGJM
IF87JK4PS/yUAn1ikKIlK73zlsm+W4LEf7tu2qGIjKxCESEArAmFKksY4wJl4CLjIEef8wGdIirJ7RMN+D4RV5g=
-----END BITCOIN SIGNED MESSAGE-----
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November 05, 2017, 08:40:08 PM
 #602

made this one

Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
This is PLUNG from bitcointalk.org and today is 5/11/2017
-----BEGIN SIGNATURE-----
1KVteegwUf8tdztGZQ2FNbKcmbMw16fGJM
IF87JK4PS/yUAn1ikKIlK73zlsm+W4LEf7tu2qGIjKxCESEArAmFKksY4wJl4CLjIEef8wGdIirJ7RMN+D4RV5g=
-----END BITCOIN SIGNED MESSAGE-----

Quoted and verified using http://brainwalletx.github.io/#verify?vrAddr=1KVteegwUf8tdztGZQ2FNbKcmbMw16fGJM&vrMsg=This%20is%20PLUNG%20from%20bitcointalk.org%20and%20today%20is%205%2F11%2F2017&vrSig=IF87JK4PS%2FyUAn1ikKIlK73zlsm%2BW4LEf7tu2qGIjKxCESEArAmFKksY4wJl4CLjIEef8wGdIirJ7RMN%2BD4RV5g%3D

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S3052_TheRealOne
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November 07, 2017, 02:17:26 AM
 #603

Hi, this is very good guidance. How can I sign a message so that I can prove a certain email belongs to me?

thanks for your help
Baby Gold
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November 07, 2017, 06:24:22 AM
 #604

And I can sign a message with this address to prove that I still have access to the private key that belongs to this address.

sorry but i use exchanger wallet how can i get the private key ?
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November 07, 2017, 07:19:17 AM
 #605

Hi, this is very good guidance. How can I sign a message so that I can prove a certain email belongs to me?
I don't think there is a way to do it to prove that you own an email address as such... signing only allows you to prove that you are in control of a private key/bitcoin address.


sorry but i use exchanger wallet how can i get the private key ?
The simple answer is that (generally) you can not get the private key for addresses controlled by exchanges, thus you can not sign messages for exchange wallet addresses. Get a "proper" wallet where you can access the private keys Tongue

raysa
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November 16, 2017, 12:40:45 AM
 #606

how to do it in new blockchain.info wallet the new version of block chain as i can see any option to do it ..please guide me
AFAIK you can't do it with new blockchain.info wallet, because they doesnt give the private key to us, so you can try with other way. with other wallet maybe never know i still use my old bitcoin address on blockchain.

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November 16, 2017, 12:55:56 AM
 #607

how to do it in new blockchain.info wallet the new version of block chain as i can see any option to do it .
Lock On [+]
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November 16, 2017, 06:25:57 AM
 #608

how to do it in new blockchain.info wallet the new version of block chain as i can see any option to do it .
Actually you need the private key from your address, then you can use blockchain to use it as your wallet and you can do sign message.
private key is the main key.
Man21
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November 17, 2017, 01:52:54 AM
 #609

how to do it in new blockchain.info wallet the new version of block chain as i can see any option to do it .
Actually you need the private key from your address, then you can use blockchain to use it as your wallet and you can do sign message.
private key is the main key.

Do we include the private key in message? If yes, is it not problem?
And where to post the signed message to proof my bitcointalk? So if get hack i can use it to proof.
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November 17, 2017, 02:01:43 AM
 #610

Do we include the private key in message? If yes, is it not problem?
And where to post the signed message to proof my bitcointalk? So if get hack i can use it to proof.
NO!

You should NEVER put your private key anywhere! Tongue

Did you read the very first post in this thread? There are clear instructions there on how to sign messages...

The only data that should be posted when you're signing a message is:
- The Message
- The Address you "signed" the Message with
- The encrypted "signature" that was created when you signed the message

There is also a thread for "staking" addresses... https://bitcointalk.org/index.php?topic=996318.new#new

Teste®
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November 17, 2017, 02:44:40 AM
 #611

Do we include the private key in message? If yes, is it not problem?
And where to post the signed message to proof my bitcointalk? So if get hack i can use it to proof.
NO!
Yup, i totally agree never put/give other people your private key, it is the only way to get your account back if you got hacked someday, and it's also the thing that convinces you as the real owner or not.
grifter1870
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December 05, 2017, 04:14:27 AM
 #612

is there any way we can sign in message on coins.ph?
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December 05, 2017, 10:50:54 AM
 #613

is there any way we can sign in message on coins.ph?
No. You don't own any of your Coins.ph addresses. And that's why you don't use a web/hosted wallet.

grifter1870
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December 06, 2017, 02:15:29 PM
 #614

is there any way we can sign in message on coins.ph?
No. You don't own any of your Coins.ph addresses. And that's why you don't use a web/hosted wallet.
oh i get it now sir, i guess we need a hard wallet to sign in/verify message is that what you mean right?
apoorvlathey
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December 06, 2017, 04:11:43 PM
Last edit: December 06, 2017, 04:40:41 PM by apoorvlathey
 #615

is there any way we can sign in message on coins.ph?
No. You don't own any of your Coins.ph addresses. And that's why you don't use a web/hosted wallet.
oh i get it now sir, i guess we need a hard wallet to sign in/verify message is that what you mean right?
No, he meant that if you use coins.ph, it means that your keys are stored by third party so technically, you Don't own those coins.
Instead on depending and trusting a third party, you must setup your own wallet. It can be bitcoin core or electrum, which provides you with private keys.
You can use them to sign messages.

grifter1870
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December 06, 2017, 04:22:47 PM
 #616

is there any way we can sign in message on coins.ph?
No. You don't own any of your Coins.ph addresses. And that's why you don't use a web/hosted wallet.
oh i get it now sir, i guess we need a hard wallet to sign in/verify message is that what you mean right?
No, he meant that if you use coins.ph, it means that your keys are stored by third party so technically, you Don't own those coins.
Instead on depending and trusting a third party, you must setup your own wallet. It can be bitcoin core or electrum, which provides you with private keys.
You can you them to sign messages.
thanks for the info sir, now i understand very well!
Bobflob6
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December 09, 2017, 01:24:51 PM
 #617

This is my trial run for signed messages with my Bitcoin Core 0.15.1 wallet:

Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
This is Bobflob6 from bitcointalk.org and today is 20171209 ( military way~ ) @1420 HRs
For everyone else... It's would be 12/9/2017 at 2:20 PM (UTC+01:00)
Tutorial complete shorena-sama?
-----BEGIN SIGNATURE-----
1H5h48KUB4bW9sp6bKQzNJE3oxvhfyo86
IG70pyYeUPamRiXQNE64CQ6B0IFUHZNa5VZkAxVOjOLjNeBdprMZm7QE2PwUU6+fK9pcLPvJWMfdrXDsHZZmXCs=
-----END BITCOIN SIGNED MESSAGE-----

Looking forward to your critiques!
S_Natural
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December 09, 2017, 01:32:28 PM
 #618

This is my trial run for signed messages with my Bitcoin Core 0.15.1 wallet:

Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
This is Bobflob6 from bitcointalk.org and today is 20171209 ( military way~ ) @1420 HRs
For everyone else... It's would be 12/9/2017 at 2:20 PM (UTC+01:00)
Tutorial complete shorena-sama?
-----BEGIN SIGNATURE-----
1H5h48KUB4bW9sp6bKQzNJE3oxvhfyo86
IG70pyYeUPamRiXQNE64CQ6B0IFUHZNa5VZkAxVOjOLjNeBdprMZm7QE2PwUU6+fK9pcLPvJWMfdrXDsHZZmXCs=
-----END BITCOIN SIGNED MESSAGE-----

Looking forward to your critiques!

Message verified to be from 1H5h48KUB4bW9sp6bKQzNJE3oxvhfyo86  Wink

Bobflob6
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December 09, 2017, 01:45:42 PM
 #619

This is my trial run for signed messages with my Bitcoin Core 0.15.1 wallet:

Code:
-----BEGIN BITCOIN SIGNED MESSAGE-----
This is Bobflob6 from bitcointalk.org and today is 20171209 ( military way~ ) @1420 HRs
For everyone else... It's would be 12/9/2017 at 2:20 PM (UTC+01:00)
Tutorial complete shorena-sama?
-----BEGIN SIGNATURE-----
1H5h48KUB4bW9sp6bKQzNJE3oxvhfyo86
IG70pyYeUPamRiXQNE64CQ6B0IFUHZNa5VZkAxVOjOLjNeBdprMZm7QE2PwUU6+fK9pcLPvJWMfdrXDsHZZmXCs=
-----END BITCOIN SIGNED MESSAGE-----

Looking forward to your critiques!

Message verified to be from 1H5h48KUB4bW9sp6bKQzNJE3oxvhfyo86  Wink

Thanks. Now to click capcha tests for pennies to earn BTC since Coinbase doesnt like me ;<
Bobflob6
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December 09, 2017, 02:17:42 PM
 #620

Quick question... is a signed message required for each tx, Or can a single signature be valid for example 2 weeks?
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