<p><strong>Multi-signature</strong> is a feature to protect against theft.</p>

<p><a href="https://bitcoin.org/en/secure-your-wallet" rel="nofollow">From securing your wallet</a></p>

<blockquote>
  <p>Bitcoin includes a multi-signature feature that allows a transaction
  to require the signature of more than one private key to be spent. It
  is currently only usable for technical users but a greater
  availability for this feature can be expected in the future.
  Multi-signature can, for example, allow an organization to give access
  to its treasury to its members while only allowing a withdrawal if 3
  of 5 members sign the transaction. It can also allow future online
  wallets to share a multi-signature address with their users, so that a
  thief would need to compromise both your computer and the online
  wallet servers in order to steal your funds.</p>
</blockquote>

<p>Traditional Bitcoin addresses are secured with a single private key. P2SH addresses can associated with three private keys. Depositing funds into is the same as depositing funds into a standard Bitcoin address. However, withdrawing funds from the address requires at least 2 of the 3 keys to sign.</p>

CC BY-SA 3.0
2014-07-02T10:56:38.383Z
2014-07-02T10:56:38.383Z
Arturo Herrero
<p><a href="http://blog.coinfloor.co.uk/" rel="nofollow noreferrer">Coinfloor</a> says it will pay out withdrawals using Multi-Signature Pay 2 Script Hash.  What is Multi-Signature Pay 2 Script Hash?  I read <a href="https://bitcoin.stackexchange.com/questions/9678/what-is-script-hash-address-exactly-and-how-does-it-work">What is &quot;Script Hash&quot; address exactly and how does it work?</a> but didn't understand how it enables more secure withdrawals form cold storage.</p>

<transactions><exchanges><script><hash>
How does Multi-Signature Pay 2 Script Hash (P2SH) enable stronger security?
oks
# How does Multi-Signature Pay 2 Script Hash (P2SH) enable stronger security?

(Asked by: username_0 on 2014-03-21)

[Coinfloor](http://blog.coinfloor.co.uk/) says it will pay out withdrawals using Multi-Signature Pay 2 Script Hash. What is Multi-Signature Pay 2 Script Hash? I read [What is "Script Hash" address exactly and how does it work?](https://bitcoin.stackexchange.com/questions/9678/what-is-script-hash-address-exactly-and-how-does-it-work) but didn't understand how it enables more secure withdrawals form cold storage.

**Tags:** transactions, exchanges, script, hash


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## 1 answers

### Answer by username_1 on 2014-07-02. Score: 2 | Accepted answer

**Multi-signature** is a feature to protect against theft.

[From securing your wallet](https://bitcoin.org/en/secure-your-wallet)

> Bitcoin includes a multi-signature feature that allows a transaction
> to require the signature of more than one private key to be spent. It
> is currently only usable for technical users but a greater
> availability for this feature can be expected in the future.
> Multi-signature can, for example, allow an organization to give access
> to its treasury to its members while only allowing a withdrawal if 3
> of 5 members sign the transaction. It can also allow future online
> wallets to share a multi-signature address with their users, so that a
> thief would need to compromise both your computer and the online
> wallet servers in order to steal your funds.

Traditional Bitcoin addresses are secured with a single private key. P2SH addresses can associated with three private keys. Depositing funds into is the same as depositing funds into a standard Bitcoin address. However, withdrawing funds from the address requires at least 2 of the 3 keys to sign.


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