How to sign a message?! - page 6. | Bitcointalksearch.org

mehdi6049875073

newbie

Activity: 2

Merit: 0

hi , when i want to sign massege from blockchain .com This error occur (The signature does not match the message.) please help me .

Chikito

legendary

Activity: 2366

Merit: 2054

I have been a practising to try sign and verify message use electrum console

Sign message

1. Open Electrum wallet
2. Console [when disappear, go to view then click show console]
3. The Following code is:

Code:

signmessage("address","Message")

example:

Code:

signmessage("bc1qvsgr8aq0hzaqwwlvvycrk8lahn9s9zrc7x2jws","Happy new year for all member, today 02 January 2019")

When click enter, your signature will appear below

Code:

"H2k73XDekL4+glAPSgUMjVUuBJaa35BvpFQOcNHgbYY2UJ/SvGuc8kmL0UzlrC8ZWdWWePzAmrIRcuItqHxVVAM="

complete sign message

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
Happy new year for all member, today 02 January 2019
-----BEGIN SIGNATURE-----
bc1qvsgr8aq0hzaqwwlvvycrk8lahn9s9zrc7x2jws
H2k73XDekL4+glAPSgUMjVUuBJaa35BvpFQOcNHgbYY2UJ/SvGuc8kmL0UzlrC8ZWdWWePzAmrIRcuItqHxVVAM=
-----END BITCOIN SIGNED MESSAGE-----

Verify message

The following code is

Code:

verifymessage("address","signature","Message")

example 1:

Code:

verifymessage("bc1qvsgr8aq0hzaqwwlvvycrk8lahn9s9zrc7x2jws","H2k73XDekL4+glAPSgUMjVUuBJaa35BvpFQOcNHgbYY2UJ/SvGuc8kmL0UzlrC8ZWdWWePzAmrIRcuItqHxVVAM=","Happy new year for all member, today 02 January 2019")

When your signature valid, true will appear after clicked enter

Code:

true

example 2:

Quote from: HiDevin on August 02, 2018, 02:56:19 AM

Code:

verifymessage("1KoFPRMnegmvGCPef1YNienLh1wy71UmRc","IGjLVlWHKaQaClF4+HWnt0t9xK1Mb54iz/hUv33shY11DvxuRqcnZXbanaZPUNcMtdPz9/I+inlsly7O5fDFXfU=","Hi, This is HiDevin on BTCTalk and it's 8/2/18")

Code:

true

example 3:

Quote from: efialtis on December 28, 2019, 03:54:53 AM

Code:

verifymessage("3GmamfBzmhcSa2jixAV8dQnuJmm3zbJ7pM","H9a1+ti12Bm7TnX3PIo+csxtojCv7D4lBNVo8Z2MTYcXe6eCSCgEg/TO/t4NLkpOqNJpcvNDTZnFUqfE75Hp68U=","This is efialtis from bitcointalk, please verify my adress, todays date is 28/12/2019")

Code:

true

source: An Introduction to the Electrum Python Console

Saint-loup

legendary

Activity: 2604

Merit: 2353

Quote from: Renampun on October 01, 2019, 12:19:10 PM

does anyone know "how to sign a message!! on the latest Blockchain.info (now Blockchain.com)??
looks like I missed the Post!!

Yes you must import your private key first.

Quote

This feature is currently only available for your Imported Addresses, but will be implemented for all addresses in the future. To sign a message, go to Settings > Addresses, and scroll down. Choose which address you want to sign, and click More Options > Sign Message.

A small window will display allowing you to provide a unique message or signature that identifies you as the owner.

https://support.blockchain.com/hc/en-us/articles/210353833-What-is-message-signing-and-how-can-I-do-that-

Renampun

sr. member

Activity: 2338

Merit: 365

does anyone know "how to sign a message!! on the latest Blockchain.info (now Blockchain.com)??
looks like I missed the Post!!

nc50lc

legendary

Activity: 2534

Merit: 6080

Self-proclaimed Genius

Quote from: efialtis on September 18, 2019, 08:06:56 AM

sorry for the late response. This is strange, in the other thread he could verify it?

HCP added the word "basically" because Bitcoin Core still doesn't have an official way of signing messages using P2SH addies,
Most of those clients that were able to sign, are using their own (non-standard) implementation.

P.S: I also successfully verified the message using Electrum.

efialtis

legendary

Activity: 1750

Merit: 1363

www.gosubetting.com

Quote from: HCP on August 28, 2019, 07:20:00 PM

Quote from: efialtis on August 26, 2019, 02:44:40 PM

Test:

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----

-----BEGIN SIGNATURE-----
<33su7w86rwrm2w2iQGCwA242sYyuoVrqde>

-----END BITCOIN SIGNED MESSAGE-----

Quoted, but fails to verify... Note that generally, you cannot sign messages from "P2SH" (aka "3"-type) addresses. Also, you shouldn't include the <'s and >'s... it confuses most of the verification systems.

Were you using a Trezor to sign that message? (It's one of the few systems I know of that will sign using a "3"-type address)

Hey mate,

sorry for the late response. This is strange, in the other thread he could verify it?

Quote from: TheBeardedBaby on August 26, 2019, 02:57:20 PM

Quote from: efialtis on August 26, 2019, 02:52:44 PM

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----

-----BEGIN SIGNATURE-----
<33su7w86rwrm2w2iQGCwA242sYyuoVrqde>

-----END BITCOIN SIGNED MESSAGE-----

Quoted, verified with mycelium, archived see below.
http://archive.fo/XSzt5
http://imgur.com/gallery/lvnkqGn

Btw I had to alter the message a little to verify it. I remove the "<>" and it went well.

pooya87

legendary

Activity: 3472

Merit: 10611

Quote from: HCP on August 28, 2019, 07:20:00 PM

Quote from: efialtis on August 26, 2019, 02:44:40 PM

Test:

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----

-----BEGIN SIGNATURE-----
<33su7w86rwrm2w2iQGCwA242sYyuoVrqde>

-----END BITCOIN SIGNED MESSAGE-----

Quoted, but fails to verify... Note that generally, you cannot sign messages from "P2SH" (aka "3"-type) addresses. Also, you shouldn't include the <'s and >'s... it confuses most of the verification systems.

Were you using a Trezor to sign that message? (It's one of the few systems I know of that will sign using a "3"-type address)

i am still surprised that after 2 years of this type of address (nested SegWit) being around they still haven't done anything about it. the change is super easy too! every code has 2 parts: recover public keys and derive the address from them to compare with the given one. they just have to change the second one from GetP2PKH address to an "if" where it derives P2WPKH-P2SH one if the address started with 3.
by the way neither one of the derived public keys seem to work here:

Code:

027695a6b442074738985a72c8b7995fc6bd83000932a650825729196415e188c3
3KmE6TJpVnq619Pyc7qv77M4tqXoTFzdbx

022a190476fd852260e2e5b196ae3f119378ec1a9ce162843806076c7fe7f70a1f
3KBqUw9TYirYtckcmq21PiT5SJ8S92supb

Moonmanmun

jr. member

Activity: 243

Merit: 9

This thread would have saved me some hardship and I wish I saw it Undecided

Very imformative and thank you for the step by step.

HCP

legendary

Activity: 2086

Merit: 4361

Quote from: efialtis on August 26, 2019, 02:44:40 PM

Test:

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----

-----BEGIN SIGNATURE-----
<33su7w86rwrm2w2iQGCwA242sYyuoVrqde>

-----END BITCOIN SIGNED MESSAGE-----

Quoted, but fails to verify... Note that generally, you cannot sign messages from "P2SH" (aka "3"-type) addresses. Also, you shouldn't include the <'s and >'s... it confuses most of the verification systems.

Were you using a Trezor to sign that message? (It's one of the few systems I know of that will sign using a "3"-type address)

efialtis

legendary

Activity: 1750

Merit: 1363

www.gosubetting.com

Test:

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----

-----BEGIN SIGNATURE-----
<33su7w86rwrm2w2iQGCwA242sYyuoVrqde>

-----END BITCOIN SIGNED MESSAGE-----

crypto_trader#43xzEXrP

full member

Activity: 1589

Merit: 214

Just a test verify of the signed message.

TheBeardedBaby

legendary

Activity: 2240

Merit: 3150

₿uy / $ell ..oeleo ;(

Quote from: skywalker925 on August 14, 2019, 01:19:00 AM

This is simply for staking and marking my ownership of the address below.

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is skywalker925 from bitcointalk.org and today is 2019.08.14 or as some of you might write it 08/14/2019. Time is 2:07 pm
-----BEGIN BITCOIN SIGNATURE-----
Version: Bitcoin-qt (1.0)
Address: 19EPcSbNqarpTcRYGLR1jCTa5Hh8zrGMM7

ILlfNzKYHN4KyzFOguRLbUqlIWOZR/VzK0+EVjofJLTDdIOyfPkRMSxu1R+OLD6R7XcVutjGoAFW+yuXUAS+sKA=
-----END BITCOIN SIGNATURE-----

This is a wrong place to stake an address. There is a designated thread for this so better post it here > Stake your Bitcoin address here

skywalker925

newbie

Activity: 4

Merit: 0

This is simply for staking and marking my ownership of the address below.

Code:

-----BEGIN BITCOIN SIGNED MESSAGE-----
This is skywalker925 from bitcointalk.org and today is 2019.08.14 or as some of you might write it 08/14/2019. Time is 2:07 pm
-----BEGIN BITCOIN SIGNATURE-----
Version: Bitcoin-qt (1.0)
Address: 19EPcSbNqarpTcRYGLR1jCTa5Hh8zrGMM7

ILlfNzKYHN4KyzFOguRLbUqlIWOZR/VzK0+EVjofJLTDdIOyfPkRMSxu1R+OLD6R7XcVutjGoAFW+yuXUAS+sKA=
-----END BITCOIN SIGNATURE-----

LTU_btc

legendary

Activity: 3234

Merit: 1375

Slava Ukraini!

Quote from: TheRealAwesome31312 on August 01, 2019, 09:06:01 AM

I have a few questions. I lost a Bitcointalk account to a hacker a while ago. People have suggested I sign a message from an old address to prove ownership, however, I'm wondering if giving away the signature will compromise my wallet's security.

What do I do after I've signed the message? Do I give away the signature, address, and message, then?

No, it won't compromise your wallet's security. Signed message just will confirm that you have control of that address. Just don't share your private key.
You can read more about recovery of hacked accounts here if you haven't saw it yet:
https://bitcointalksearch.org/topic/recovering-hackedlost-accounts-5089777

TheRealAwesome31312

member

Activity: 136

Merit: 25

I have a few questions. I lost a Bitcointalk account to a hacker a while ago. People have suggested I sign a message from an old address to prove ownership, however, I'm wondering if giving away the signature will compromise my wallet's security.

What do I do after I've signed the message? Do I give away the signature, address, and message, then?

Nnuego

jr. member

Activity: 266

Merit: 4

You really tried by taking much of your time to put all this together for better understand and practice. There are many things bitcointalk gat to offer to her community that we don't know about. You've been on this forum since 2013 till now,that's lovely. Thanks for the tutorial

HCP

legendary

Activity: 2086

Merit: 4361

Quote from: LTU_btc on July 23, 2019, 05:41:18 PM

Quote from: Pacho Vladigerov on July 23, 2019, 06:01:19 AM

My address is
3EfqqrABD3EBw1okT3wftjUgTnM2xeWKpx
and i have error when i try to sign message:
"The entered address does not refer to a key. Please check the address and try again"

The address is correct because I already send and receive coins with it.

Your address is correct, but you can't sign a message using this address, because as I understand it's from multi-signature wallet.

Not quite correct... it *might* be a Multi-Sig address... but it could also be a nested SegWit address. Addresses that start with a "3" are a "Pay to Script Hash" address... commonly referred to as P2SH.

As these addresses are derived from a "script", there is no private key that is paired directly with that address that can be used to sign the message.

You would need to use a "Legacy" address (starts with a "1") to be able to sign a message.

gesrhon7

newbie

Activity: 427

Merit: 0

This is George coffie and my address is
115YqcsHBZVkqGD88YaoLgSyg3XpmuvB3p
You ask me to send it for you emblem you recover my hack account thanks very much.

Pacho Vladigerov

newbie

Activity: 2

Merit: 0

Quote from: LTU_btc on July 23, 2019, 05:41:18 PM

Quote from: Pacho Vladigerov on July 23, 2019, 06:01:19 AM

My address is
3EfqqrABD3EBw1okT3wftjUgTnM2xeWKpx
and i have error when i try to sign message:
"The entered address does not refer to a key. Please check the address and try again"

The address is correct because I already send and receive coins with it.

Your address is correct, but you can't sign a message using this address, because as I understand it's from multi-signature wallet.

Thank you

LTU_btc

legendary

Activity: 3234

Merit: 1375

Slava Ukraini!

Quote from: Pacho Vladigerov on July 23, 2019, 06:01:19 AM

My address is
3EfqqrABD3EBw1okT3wftjUgTnM2xeWKpx
and i have error when i try to sign message:
"The entered address does not refer to a key. Please check the address and try again"

The address is correct because I already send and receive coins with it.

Your address is correct, but you can't sign a message using this address, because as I understand it's from multi-signature wallet.

Topic: How to sign a message?! - page 6. (Read 141621 times)