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Author Topic: How to sign a message?!  (Read 139551 times)
Davidyyyyy
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September 14, 2021, 08:21:42 AM
 #861

But I not have private key . I only have public address
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September 14, 2021, 08:29:31 AM
 #862

But I not have private key . I only have public address
Signing an address is to show ownership of it, and this is only proven by showing access to the private keys.
The public address is accessible by others and the public key is revealed when an address signs a transaction, but the private keys are only accessible to the owner of the address (except when compromised) that is why it is used to prove ownership.

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September 14, 2021, 08:40:50 AM
 #863

But I not have private key . I only have public address

How come you get only public address without acquiring public during your wallet setup? If you are just recently created a wallet, you will get 12 word seed phrase instead of private key if you use electrum wallet then proceed on the instructions. You might counter some changes since the guide is outdated due to inactivity of OP.

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September 14, 2021, 09:01:58 AM
 #864

But I not have private key . I only have public address
How come you get only public address without acquiring public during your wallet setup?
He probably used an address from a cryptocurrency exchange [custodial wallet].

@Davidyyyyy
If I was right, then there's no way for you to sign a message, but if that's not the case, then you should mention the name of the wallet in question, so we could try to find a solution [if there's any].

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September 14, 2021, 09:05:16 AM
 #865

I was had transfer few months ago . But how to get my private key? And I try to use Bitcoin core to sign but I can’t find (The private key of the associated address could not be found)
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September 14, 2021, 09:47:53 AM
 #866

I was had transfer few months ago . But how to get my private key? And I try to use Bitcoin core to sign but I can’t find (The private key of the associated address could not be found)
I'm not a Bitcoin core user but judging by the error that you're getting, I have a strong feeling that you didn't generate the address in question, on that wallet.

Proper commands:


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September 14, 2021, 09:51:26 AM
 #867

The wallet from freebitco.in account
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September 14, 2021, 09:59:54 AM
 #868

The wallet from freebitco.in account

If you don't have the private keys, the wallet address is not yours, you are just borrowing it to make some transactions but other people are in control of the private keys.
That means that you don't have your own wallet address to be able to sign a message from.
You can just install Electrum to try it and see how it works. There are number of video tutorials on youtube.

If you have difficulties again, let us know we will help. 

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September 14, 2021, 10:06:35 AM
 #869

do you have other wallet can use iPhone to sign? I mean other options except Electrum
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September 14, 2021, 02:33:33 PM
 #870

Thank you! I am now able to sign messages. I think this technology is very cool and I had a great time learning about it!

Regards, excro  Wink

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September 14, 2021, 04:17:07 PM
 #871

do you have other wallet can use iPhone to sign? I mean other options except Electrum

There are many Bitcoin wallets available on the market for iOS devices. The following thread may give you some guidance for selecting a Bitcoin wallet, especially if you are new to cryptocurrency:
 [General] Bitcoin Wallets - Which, what, why?

If you prefer, you can also read the guide that is available on the following link to choose a wallet that fits your needs:
https://bitcoin.org/en/choose-your-wallet?step=5&platform=ios

Mobile wallets should only be used for small amounts of Bitcoin, and always remember to keep your seed words safe. Choosing Open Source wallets and DYOR (Do Your Own Research) is recommended.
If you have any specific questions about any of the wallets listed, feel free to ask.

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September 14, 2021, 05:10:42 PM
 #872

do you have other wallet can use iPhone to sign? I mean other options except Electrum
You can check and try mycelium mobile wallet, I'm using its android version and it has signed message feature, I'm sure ios version have this feature too as they continue developing the ios version recently.

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September 14, 2021, 10:12:03 PM
Last edit: September 15, 2021, 07:48:40 PM by mprep
 #873

For iOS mycelium wallet there no sign message option



I download Coinomi after that I make a sign it’s said : the provided address could not be found in this account


[moderator's note: consecutive posts merged]
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September 14, 2021, 11:59:54 PM
 #874

I download Coinomi after that I make a sign it’s said : the provided address could not be found in this account
Did you make a signed message using the address you got from Coinomi or another address?
Try to follow how-to sign a message as shown in the following link:
https://coinomi.freshdesk.com/support/solutions/articles/29000025877-how-to-sign-verify-messages

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September 15, 2021, 06:08:23 AM
 #875

do you have other wallet can use iPhone to sign? I mean other options except Electrum
For iOS mycelium wallet there no sign message option
I download Coinomi after that I make a sign it’s said : the provided address could not be found in this account
Looks like you have a habit of ignoring all of the obvious signs! In case none of us were clear enough, no matter which wallet you download, you "can't sign a message with the public address" alone and since you mentioned you don't have access to the private key of that address, then there's no way for you to import it to any wallet!


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September 15, 2021, 07:04:52 AM
 #876

If it is just a matter of signing a message using a random private key and address you can try brainwallet just to see how it works.
Never use such address and private key generated online to send funds to or stake here as you can never trust online generated private keys.

I have no iPhone, never used one so I cannot be helpful for choosing an app for the job. If you want to stake an address here.

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September 15, 2021, 08:35:45 AM
 #877

I just want to remove 2FA from freebitco.in.  The staff asked me to come here.  I currently only have a public address.  There is no private key.  So I can't just sign with a public address.  how should do?
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September 15, 2021, 08:57:17 AM
 #878

I just want to remove 2FA from freebitco.in.  The staff asked me to come here.  I currently only have a public address.  There is no private key.  So I can't just sign with a public address.  how should do?

The meaning of signing a message is proving ownership of the public address. If you don't have access to a private key, you can't prove ownership of the public key. That should be obvious, right?

Therefore, you cannot sign a message without your private key.
Can you, for example, send coins from that address? No? Then you are not the owner of that address. And please stop asking further questions as no one can help you.

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September 15, 2021, 11:53:40 PM
 #879

I just want to remove 2FA from freebitco.in.  The staff asked me to come here.  I currently only have a public address.  There is no private key.  So I can't just sign with a public address.  how should do?
If you still have access to the email address and password used at freebitco.in, try using the Reset 2FA feature at the bottom right of the Login button. There are several methods to reset 2FA, including using a 2FA Secret Key, a backup Phone Number, or an Email Address.

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