Questions tagged [multi-signature]

Multi-signature addresses require m-of-n signatures to authorize spending funds sent to them.

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5k views

How can I reclaim my Bitcoin Cash from my Greenaddress wallet?

I'm new to cryptocurrency in general, and I'm still learning. Let's say someone moves BTC to a multi-signature wallet with a trusted provider, i.e. Greenaddress, before the split from an exchange. ...
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1answer
2k views

Java: Base58-encode String

I would like to Base58-encode this String: 56379c7bcd6b41188854e74169f844e8676cf8b8 My current Java code looks like this: String test9 = "56379c7bcd6b41188854e74169f844e8676cf8b8"; byte[...
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1answer
52 views

Can I rely on multisignature addresses being future proof?

I am afraid to store my bitcoin in a multisig address. In the future, if the Bitcoin protocol is updated, could there be any problems with multisig addresses? Are they safe to store bitcoin in for ...
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0answers
288 views

Multi signature wallet I'll know the private key

So my situation is I have to create a multi-signature address for our business (was going to do something like this: https://github.com/anders94/bitcoin-2-of-3-multisig). My question is if I make it ...
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1answer
552 views

HELP ME WITH BCH IN A MULTISIGN ADDRESS [duplicate]

Hy to everyone, Just some days ago I send for error some BCH to my BTC Wallet. I use ELECTRUM. I realized after that I made a mistake with the address and I tried to recover, I import my private key ...
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1answer
580 views

Double-signature paper wallets?

I believe it's possible to send money to an address that requires two signatures to spend. But I am trying to figure out how this can be done with paper wallets. My understanding of multi-signature ...
1
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1answer
655 views

How to know what kind of Multisignature address?

I have a Multisignature bitcoin for example address [3QJmV3qfvL9SuYo34YihAf3sRCW3qSinyC] how to know what kind of it? according to wiki https://en.bitcoin.it/wiki/Multisignature I have know ...
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0answers
86 views

Why is SegWit disabled and old address gone when recovering an Armory paper wallet?

I wanted to make absolutely sure I could recover my Armory wallet with M of N recovery keys. So instead of doing just a test, I deleted the wallet and restored it. But now Segwit for getting receiving ...
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0answers
532 views

Unable to send raw transaction: mandatory-script-verify-flag-failed

When I send a raw transaction I get an error: 16: mandatory-script-verify-flag-failed (Signature must be zero for failed CHECK(MULTI)SIG operation) Raw transaction that I send: ...
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1answer
71 views

Are there other ways to have more than one address involved in a SINGLE transaction input or a SINGLE transaction output?

Full question: Except for the case of multisignature, are there other ways to have more than one address involved in a SINGLE transaction input or a SINGLE transaction output?
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2answers
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How complex can bitcoin multi-signature addresses be?

From what I've read, M-of-N multisig addresses are possible in bitcoin. But nothing I've read talks about the limits of that (eg I'm not sure if there are limits to M and N) nor whether there are more ...
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0answers
627 views

Creating a multi-sig wallet with bitcoind

Our server has bitcoind on it and is running on the test network. I want to make the wallet multi-signature so no one in our company can withdraw any bitcoin from our server without at least 3 ...
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0answers
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What is multisig and why would I use it in bitcoin? [duplicate]

I read the term multisig address, as something that requires more than 1 signature. What is that? What would be the context of using that, why would I use something like that?
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1answer
235 views

2 of 3 multisignature transaction vulnerability when one of the private keys is compromised

I was wondering if and how multisignature wallets protect the owners from getting robbed. So in 2 of 3 multisignature scheme, if one of the owners' machines has been compromised (i.e. bad actor ...
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1answer
55 views

Is it possible for multisig wallets to have trusted addresses? (Dynamic amount of permissions required)

I've been wondering if it is by design possible to have a multi-signature wallet which has a set of trusted addresses which require less signatures. Let's say I have a 3-of-5 wallet, but all address ...
4
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2answers
470 views

What multi-sig wallets are there for Android/Jolla?

TL;DR: What wallet apps are there for android (or sailfishOS) that has "true" support for multisig? Requirements/rationale Thinking a bit, if I'm to possess serious amounts of bitcoins, I want a ...
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1answer
242 views

malleability in 2-of-2 multisig payment channel

I am having issues understanding 2-of-2 multisig, with regards to the malleability attack. Where Alice and Bob set up a multisig payment channel where Alice sends 1 BTC in order to do multiple tx ...
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1answer
803 views

What is the “Bitcoin Address” for standard multisig transaction?

Question A standard multisig transaction is: scriptPubkey = m <p1> ... <pn> n OP_CHECKMULTISIG scriptSig = OP_0 <s1> ... <sm> Where: 1 <= m <= n <= 3. Note, that ...
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1answer
62 views

How do I revoke a multisig transaction?

Let's say that I am using 2 of 3 multisig. I know how to use signrawtransaction and sendrawtransaction to send the funds if at least 2 of the parties have agreed on the transaction, but I don't know ...
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1answer
563 views

Bitcoin core multisig signing order

I have a technical question regarding the signrawtransaction function in Bitcoin core when signing a partially-signed transaction. I have tested different scenarios and signrawtransaction will always ...
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1answer
253 views

Is there a way to get the address of associated with a transaction input with bitcoinj?

If I was not mistaken, with transactioninput.getConnectedOutput(), the output which is used for the input is obtained. But what to do later? There seem to be two relevant methods: ...
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2answers
321 views

Can unrelated people know the private key of a multisig address?

After a multisig address is created, can one of the private keys of that address be known by an unrelated person and the security of that address still remain uncompromised? My understanding being ...
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1answer
8k views

Difference between a SegWit address and a P2SH address

Let there be an address 3ABCDEFGHJKDJHDH.... How can I understand if it's a SegWit address or a MultiSig address?
8
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1answer
8k views

How do I use Multisig transactions to handle escrow needs?

I want to do a private escrow between me and someone else for a Bitcoin miner, and it will take weeks or months for that miner to arrive. I think multisig is an easy trust-free way to accommodate ...
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1answer
312 views

Why is BIP-147 (Dealing with dummy stack element malleability, part of segwit) necessary?

Given BIP-11 (M-of-N Standard Transactions) it's not clear why BIP-147 (Dealing with dummy stack element malleability) is necessary. BIP-11 states: OP_CHECKMULTISIG transactions are redeemed using ...
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3answers
170 views

Multisig address for website?

I am trying to sort out the use case of a published funding address on a web page, to which everyone can spend. Internally in our company, I want to avoid, that a single person can spend these funds. ...
8
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1answer
2k views

Implementing Multi-Sig Escrow?

I want to start a BTC market. I understand all the ways to go about creating a site, it's just the payment implementation which confuses me. I want multi-sig transactions capable between my users on ...
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3answers
476 views

Could cryptocurrency “insurance” slow Bitcoin adoption?

Does the concept of cryptocurrency "insurance" undermine the purpose of "being your own bank"? Recently I have seen more Bitcoin related companies offer some sort of insurance for Bitcoins stored in ...
2
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1answer
150 views

How does CoinJoin affect the total transaction size?

As I understand it, CoinJoin is a method to aggregate multiple transactions into a single transaction, mostly for privacy purposes. How does this aggregation affect the total size of the transactions?...
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1answer
184 views

Can arbitrary transactions be aggregated?

Is it possible to take multiple transactions in the form: [A->X] , [B->Y] , [C->Z], where A,B,C,X,Y,Z are arbitrary, unrelated Bitcoin users/wallets and aggregate them to a single transaction: [...
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2answers
399 views

Can a multi-sig address also be a vanity address?

If so, do the three separate parties have to agree on the character sequence?
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1answer
54 views

How likely is it that all the addresses involved in a SINGLE multisig transaction input/output belong to the same wallet/owner?

I read from a paper that: "Since many transactions have multiple sending addresses, we can make the reasonable assumption that all these addresses have the same owner." (Quantitative Analysis of the ...
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1answer
175 views

How can I work out why a transaction isn't being included in any blocks? [duplicate]

I've crafted a testnet p2sh address using python-bitcoinlib. The script contents is 2-of-2 multisig: 2, key1, key2, 2, OP_CHECKMULTISIG Redeem script: ...
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1answer
97 views

Can a transaction be created by 2 different wallets?

I am familiar with Bitcoin's model, but a complete noob in real-world details. I am entertaining the idea of a service that receives transactions (A->B) and "wraps" or completes them to include (A->B &...
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1answer
2k views

Transfer Blockchain.info to Electrum

I am moving to Electrum from Blockchain, but I can't find any guides or tutorials on the internet that explain the process of tranferring a Blockchain wallet to Electrum. I have a multi-signature ...
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1answer
1k views

Is there a difference between the multi-signature and Shamir's secret sharing?

Is there a difference between the multi-signature and Shamir's secret sharing? Technology/algorithm-wise.
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1answer
99 views

How to convert regular transaction to MULTI-SIG one?

Assume, I received a bitcoin in a regular transaction: T1. But I need to make MULTISIG transaction. so there should be at least n out of m signatures in new transaction :T3, to redeem it. Am I right ...
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1answer
51 views

Is the current Bitcoin implementation easy for different users to participate in a single transaction?

I read a paper from 2013 (Androulaki E., Karame G.O., Roeschlin M., Scherer T., Capkun S. (2013) Evaluating User Privacy in Bitcoin. In: Sadeghi AR. (eds) Financial Cryptography and Data Security. FC ...
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1answer
116 views

CHECKMULTISIGVERIFY with public key hashes?

Is it possible to create a script that implements m of n pay to public key hash neatly? One way to do it would be to make use of OP_IF. But, that's not neat. CHECKMULTISIGVERIFY can implement m of n, ...
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2answers
219 views

What does this output item in the result of the call with blocktrail api mean?

This is the result of a call with blocktrail api. It is about a transaction with the hash 6b1c57d98a557b5f578c02f6c386ef049df5890ebddd01d286bf345f47c5cecc {"raw":"...
3
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1answer
838 views

How can I spend multisig pubkey scripts? (p2ms, not p2sh)

I'm learning about Bitcoin transaction. I tested Pay to Multisig (Multisig pubkey scripts, p2ms) by using bitcore-lib. It worked. The bellow tx is mine. That is 2-of-3 multi-sig and I have all of the ...
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1answer
2k views

How users collectively sign a transaction in a multisig scenario?

Say there're 3 people (A,B,C) involving into a 2 of 3 multisig scenario. If A & B agree to sign a transaction, what steps they should take? My guess is: A creates a transaction with the multisig ...
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1answer
312 views

Multisig Addresses for Trading

Currently, trading on centralized exchanges requires one to keep their funds on the exchange, with the private key controlled by the exchange's server. Wouldn't it be possible to give people multisig ...
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1answer
1k views

Partially sign a transaction with coinb.in

I'm trying to generate a 2-of-2 multisig address: pubkey1 and privkey1 on coinb.in pubkey2 and privkey2 a bitcoin core client I use createmultisig 2 '''["<pubkey1>", "<pubkey2>']''' on ...
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1answer
366 views

wallet notification not working for multisig address

I am new in bitcoin. I started research about bitcoin(Couple of days ago) for my project.I setup bitcoin node on my linux server and it is fully synchronized. here is my bitcoin.conf prune=600 ...
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1answer
50 views

Can i compose a multisig address where one of the signatories is a multisig address?

Can i compose a multisig address where one of the signatories is a multisig address? In order to create a multisig address we need the pubkey of the signatories. bitcoin­cli addmultisigaddress 2 '["...
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2answers
970 views

How should I safely buy/sell a preorder for Bitcoin mining equipment?

Suppose I need to buy/sell a preorder for Bitcoin mining equipment. What is the safest approach (for both the buyer and seller) to conduct this transaction? Does it matter if this transaction is ...
3
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1answer
188 views

Is it possible to create private multi-signature transactions?

Since ZCash is based on the bitcoin core it is also enabled to create multi-signature transactions by default. ZCash now adds the possibility to create also private transactions. But how to create ...
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1answer
933 views

MultiSig Learning On TestNet

I'm trying to figure out multisigs and have just created a 2 of 3 multisig as follows: createmultisig 2 '["public_key_1","public_key_2","public_key_3"]' This returns 2 values Value 1: Address ...
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2answers
271 views

How multi-signature wallets comunicate with each other?

I wonder how multi-signature wallets communicate with each other? My favorite wallet is copay. How do they communicate with each other before payment is done? How is privacy handled between each ...

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