Questions tagged [multi-signature]
Multi-signature addresses require m-of-n signatures to authorize spending funds sent to them.
567
questions
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How are Bitkey's spending limits enforced?
Block's new Bitkey is a 2-of-3 multi signature wallet (https://bitkey.world/en-US)
I've been reading their white paper, which is a good summary of their intentions, but doesn't really go into ...
1
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1
answer
34
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BTC multisig wallet with rekeying
I'm trying to create a Bitcoin multisig wallet. At this point, the wallet must meet the following conditions
must be capable of k-of-n threshold signatures (schnorr, musig, etc.)
it should be ...
3
votes
1
answer
49
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Creating a raw Segwit transaction from scratch and getting Signature must be zero for failed CHECK(MULTI)SIG operation
I am trying to create a Segwit transaction on TESTNET from scratch while referencing an online guide:
https://medium.com/coinmonks/creating-and-signing-a-segwit-transaction-from-scratch-ec98577b526a
...
0
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1
answer
91
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bitcoinjs - mandatory-script-verify-flag-failed (Signature must be zero for failed CHECK(MULTI)SIG operation)
I'm trying to follow the below transaction example by magic eden and extend it to support multiple buyers and seller (in red). However I am having difficulties when I add more than one signature from ...
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0
answers
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How can I know the Bitcoin Transfer Transactions on Bisq?
I am trying to get some blocks from Bisq.
I used their API to get the blocks. Then I discovered that blocks are missing some inputs, so I used their API again to get these transactions.
But, I ...
0
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1
answer
32
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Can multisignature be required only to create a transaction?
I'm a little confused about multisignatures, so the following question may not even make sense. I understand that a transaction can be created with a script that requires M-of-N signatures as a ...
0
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0
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Export a taproot multisig wallet
I have created a wallet, added a descriptors to make it multisig with tr(KI, multi_a(2,pub1,pub2,pub3) command.
Now, I want to import this to some UI but since the wallet doesn't have a private key I ...
0
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1
answer
94
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Multisig for Bitcoin ordinals wallet
I am trying to make and receive transactions on Unisat wallet, but Unisat doesn't support multisig. How do I implement multisig for a wallet that supports ordinals?
2
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1
answer
61
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Zpub vs xpub not matching between seedsigner and sparrow?
Generated a multisig xpub via Seedsigner. Loaded this to sparrow via camera-reading of seedsigner's QR code. Sparrow & Seedsigner fingerprints match, as do derivation paths, but Seedsigner ...
1
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0
answers
88
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Cannot import multisignature descriptor in Bitcoin Core
I created a multisignature address in regtest:
ADDR_1=`bitcoin-cli getnewaddress "" "bech32"`
ADDR_2=`bitcoin-cli getnewaddress "" "bech32"`
PB1=$(bitcoin-cli -...
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0
answers
40
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Sign a multi-signature transaction with imported address
I have an address with three compressed public keys:
SCRIPT="5221"$(cat compressed_public_key_1.txt)"21"$(cat compressed_public_key_2.txt)"21"$(cat ...
3
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2
answers
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Which hardware wallets require importation of PSBT for knowledge of multisig set up?
My understanding of a multi-vendor multisig is that certain wallets require importation of the resultant multisig wallet's PSBT information in order to sign multisig transactions. Coldcard's ...
0
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0
answers
23
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Can I use 2 individual private keys to spend from my Bip32 HD 2 or 2 multisig?
Example keys are fake:
If I build a 2 of 2 in Sparrow or any Bip32 Determ wallet, with P2WSH native segwit, and ONLY send funds to the very FIRST receiving address:
m/48'/0'/0'/2'/0/0: ...
1
vote
1
answer
110
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Is the signature check performed when the signature is the empty vector?
In this answer Vojtěch Strnad wrote the following:
OP_CHECKSIGADD always performs one check per signature, since unused
public keys are required to be paired with an empty witness item and
are ...
1
vote
1
answer
93
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What are the all benefits/advantages of OP_CHECKSIGADD over OP_CHECKMULTISIG?
What are all the benefits of introducing OP_CHECKSIGADD in Taproot instead of OP_CHECKMULTISIG?
I assume the first benefit is the following.
For example, in pre-taproot approach, if we have 3-of-10 ...
2
votes
1
answer
111
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What would happen if we provide to OP_CHECKMULTISIG more than threshold number (m) of signatures?
Asked here but still no answer.
What would happen if we provide to OP_CHECKMULTISIG opcode more than threshold number (m) of signatures?
For example, if the m = 3 and n = 6 and the output script is:
3 ...
0
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1
answer
82
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What's the point of Multi Signature Addresses?
When an attacker has access to the private key of the wallet, he can dump the private keys of every address used for the multisign address(es).
So, what's the point of multi sign addresses when there'...
4
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1
answer
338
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Is the Schnorr digital signature scheme a multisignature interactive scheme, and also not an aggregated non-interactive scheme?
In his answer Pieter Wuille defined a concepts of multisignature scheme and aggregated signature scheme as follows:
A multisignature scheme is a scheme where multiple parties jointly produce a ...
1
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1
answer
215
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How to get signature for tweaked public key in P2TR in case of multiple signature?
EDIT: Can we just tweak the signature with the root MAST as well?
As I understand, the public key in scriptPubKey for P2TR is obtained by tweaking (let's call it original public key) and the root of ...
3
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1
answer
102
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What are the privacy implications of multsig wallets if one half is compromised?
I am trying to work out the privacy implications of the following scenario. Alice and Bob have a multisig wallet together (say Electrum but it doesn't really matter). Alice's computer is somehow ...
2
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1
answer
61
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How to find out if public keys have been used in other transactions
When we get the public keys from a multisig script is there a way to check what other transactions use those public keys?
I know how to check if they have been used as P2PKH addresses, but I'm not ...
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2
answers
400
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Why are n public keys needed for reconstitution of an x of n multisig?
Trying to conceptually understand why I must store the public keys of the n hardware wallets in an x of n multisig set up? Only x of the seed phrases/private keys are needed to reconstitute/recover ...
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1
answer
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From where can I download a precompiled Windows installable Bitcoin core with support of hardware wallet for BitBox02
I wanted to integrate my BitBox02 into the existing Bitcoin Core Version v24.0.1 on my Windows 10 laptop.
In the customization menu I receive the notice that this node does not contain the hardware ...
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1
answer
225
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Should different brands of hardware wallets be used in multisig setups?
Is there genuinely a compelling reason to use different brands of hardware wallets in multisig setups? I am contemplating using a series of Coldcard hardware wallets in a multisig setup but some ...
1
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0
answers
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Scripting an escrow transaction where the arbitrator ALWAYS gets paid
I am trying to make an Escrow and Arbitration where the arbitrator always gets paid say 5% of the transaction.
As in the famous escrow example here:
Charlie-the-customer wants to buy a product from ...
2
votes
1
answer
134
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Does a set of private keys have a different XPUB and ZPUB for single signature and multisig?
I am experimenting with multisig wallets using Sparrow. I have two Nano Ledger hardware wallets each set up for single signature with different private keys. I used them to create a 2 of 2 multisig ...
1
vote
1
answer
86
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Bitcoin Multisig tx signing
I've generated a 2-of-3 P2SH Multisig address (testnet) and am attempting to manually reproduce the signatures to spend from it. While I can replicate the signature for the first key, as produced by ...
0
votes
1
answer
279
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Create a multisig wallet using Sparrow wallet with keys (A and (B or C))
Further to the following question:
Can the same set of private keys be used multiple times in a multisig wallet?
I tried to create a multisig wallet with keys (A and (B or C)) in Sparrow wallet using ...
2
votes
2
answers
237
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Can the same set of private keys be used multiple times in a multisig wallet?
Is there any limitation to how many times the same set of private keys can exist within a multisig wallet? For example, could a 3 of 4 multisig wallet be created with two of the four keys being ...
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2
answers
83
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Bitcoin inheritance
For a while now I've been wondering what is the best way to setup an inheritance plan for the bitcoin I own. Has any one here set one up? What’s your plan?
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3
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240
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Do I need to store my hardware wallet's derivation path?
"Not your keys, not your coins" is common mantra. I thought all I needed to do was to safeguard my private keys (via hardware wallet, cold storage) to be able to reconstitute my BTC at any ...
1
vote
1
answer
57
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multiple multisigs with minimal cold devices
I want to maximize security but minimize complexity. Let's say I have large enough sums of BTC that need to be secured into three buckets:
KYC Personal BTC
Non KYC Personal BTC (mined)
KYC Company ...
2
votes
0
answers
39
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Receiving funds in multisig - is it enough to confirm the receive address on every signing device?
If I confirm the receive address displayed in my software wallet matches on EVERY signing device in my multisig setup, can I be confident that any funds sent to that address belong to an address I ...
1
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0
answers
127
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multisig vs singlesig
Due to the Ledger debacle I have purchased a Coldcard hardware wallet. I made this decision partly based on watching the Antonopoulos live stream last week. Until now I have backed up my bitcoin on a ...
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1
answer
37
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List unused multi-sig wallet addresses
Is there a way to list all bitcoin wallet addresses (or at least the count) which are receivers in a multi-sig transaction such that those addresses have never been used as senders in any other ...
3
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0
answers
87
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What is the difference between singlesig and multisig xpubs?
When exporting the xpub from my SeedSigner, I'm asked whether to export the "singlesig xpub" or "multisig xpub." I understand the use cases for each but from a technical standpoint,...
3
votes
1
answer
238
views
Can 2-of-3 multisig funds be recovered without one of the xpubs?
In a 2-of-3 multisig, the address list is derived from the combination of the three xpub keys. What happens if you lose one of the keys and its xpub?
Technically, you'd be able to sign transactions. ...
-1
votes
1
answer
91
views
"Signature must be zero for failed CHECK(MULTI)SIG operation"
I want to broadcast signed transaction but I get this error how can I solve this I get this everytime.
"Signature must be zero for failed CHECK(MULTI)SIG operation"
RAW hex
...
0
votes
2
answers
186
views
Is multisig less secure than single sig, since only one xpub needs to be swapped by an attacker to lose funds?
Scenario: (2 of 3 multisig) one of the hardware wallets is running malware and uses an attackers xpub instead of the one derived from the recovery phrase. This swapped xpub is reported to all the ...
4
votes
2
answers
205
views
Conditional MULTISIG transaction
I need a bitcoin lock script that will require my key and 1 of 4 other people.
For example, If my key is present and one of the 4 other keys are also present, transaction can be claimed. If my key is ...
1
vote
1
answer
252
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Can 2 of 2 multisig funds be recovered without the xpubs
Background: I read that in a 2 of 3 setup, all funds would be considered lost in the event that even a single xpub was completely lost.
if you can no longer derive the public keys of all cosigners, ...
1
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1
answer
63
views
Can Taproot Script condition over the amount from a particular output being spent
Imagine a single multisig taproot address funded by a buyer. He bought from two vendors in a single order, but the resolution of each order/vendor pair is unknown ahead of time, and will happen at ...
2
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0
answers
63
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listdescriptors true fails after importing a 2-of-3 multisig descriptor (prv, pub, pub)
By deafult, in a newly created descriptor wallet that is not watch-only and not empty, listdescriptors true works and gives output.
However, here is a scenario that breaks it:
Get a new address in ...
1
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1
answer
124
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signrawtransactionwithwallet for a multisig-transaction, after getnewaddress
I created a descriptor wallet in bitcoin core 24.
Next, I created a new address with using getnewaddress.
I took pubkey of that address, and used it as one of the three pubkeys when generating a ...
2
votes
2
answers
221
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Is there a set length that a signature can be?
I'm reading this page which describes the following method of creating a stack:
OP_0 <A sig> <B sig> OP_2 <A pubkey> <B pubkey> <C pubkey> OP_3
Sig Stack Pubkey ...
3
votes
2
answers
250
views
Code for computing SigHash for various input types
I am looking for code examples (in rust-bitcoin, but even in Python) of how to calculate sighash for various input types. Specifically, I need to calculate the sighashes for M of N multisig unlocking ...
2
votes
1
answer
274
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How to create a 1-of-2 multisig with P2TR?
We have two companies and we want to spend funds with 1-of-2 multisig. We successfully did such a multisig with P2SH. How can I do this in P2TR? Can any give me a detailed instruction step by step?
...
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1
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61
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How do I view Multisig Trades using bitcoincore?
For a school project my goal is to go analyze multisig trades, is there a way where I can make this information any more clear to me?
I have been running bitcoincore as a way to get trades that I can ...
0
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2
answers
195
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How can I create a multi sign for a large number of users
I want to create a DAO-like wallet where each member would have to sign for any given tx.
Tx should go through if 51% of the users signed.
Is this possible?
2
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1
answer
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A good wallet for Taproot multisig?
Sparrow only has Taproot single sig, and it is based on Xpub, which is a hodgepodge duct tape method combining pre-taproot and taproot.
Electrum zero Taproot. When asked "wen Taproot" ...