<p>Every Lightning channel has two participants, funds are initially locked in a 2-of-2 multisig address and each participant has one of the two private keys associated with this address. Threshold schemes like <a href="https://eprint.iacr.org/2020/852.pdf" rel="nofollow noreferrer">FROST</a> allow you to send funds to the equivalent of say a 2-of-3 with only one aggregated public key going onchain. One of the two (or both) participants in the Lightning channel could use a scheme like FROST to make their single public key associated with the Lightning channel into a 2-of-3 threshold. There are <a href="https://btctranscripts.com/lightning-conference/2019/2019-10-19-chris-stewart-private-key-management/" rel="nofollow noreferrer">additional keys</a> involved in the operation of Lightning channels once it has been set up but this answers covers incorporating an off-chain threshold scheme into the opening and closing of the Lightning channel.</p>

CC BY-SA 4.0
2022-04-15T10:59:35.913Z
2022-04-15T11:12:26.857Z
2022-04-15T11:12:26.857Z
Michael Folkson
<p>I am not sure if I understand your question right. Do you want to have a 2 out of 3 multisig wallet? Theoretically this is very possible. Though practically this will be quite combersome. I guess the best way to achieve this would be to wait for BIP 118 to be activated and then the eltoo upgrade. This would easily enable multiparty channels. This could be used to achieve a scenario as you described. </p>

CC BY-SA 4.0
2018-09-17T08:52:36.533Z
2018-09-17T08:52:36.533Z
Rene Pickhardt
<p>I'm considering a scenario in lightning, where it would be extremely useful to be able to lock the funds in 2/3 lock</p>

<p>Is this possible on lightning network (even in theory)?</p>

<lightning-network><frost>
Is it possible to create pure lightning lockboxes (without touching the blockchain)?
Arsen Zahray
# Is it possible to create pure lightning lockboxes (without touching the blockchain)?

(Asked by: username_0 on 2018-09-14)

I'm considering a scenario in lightning, where it would be extremely useful to be able to lock the funds in 2/3 lock

Is this possible on lightning network (even in theory)?

**Tags:** lightning-network, frost


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## 2 answers

### Answer by username_1 on 2022-04-15. Score: 1 | Accepted answer

Every Lightning channel has two participants, funds are initially locked in a 2-of-2 multisig address and each participant has one of the two private keys associated with this address. Threshold schemes like [FROST](https://eprint.iacr.org/2020/852.pdf) allow you to send funds to the equivalent of say a 2-of-3 with only one aggregated public key going onchain. One of the two (or both) participants in the Lightning channel could use a scheme like FROST to make their single public key associated with the Lightning channel into a 2-of-3 threshold. There are [additional keys](https://btctranscripts.com/lightning-conference/2019/2019-10-19-chris-stewart-private-key-management/) involved in the operation of Lightning channels once it has been set up but this answers covers incorporating an off-chain threshold scheme into the opening and closing of the Lightning channel.


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### Answer by username_2 on 2018-09-17. Score: 2

I am not sure if I understand your question right. Do you want to have a 2 out of 3 multisig wallet? Theoretically this is very possible. Though practically this will be quite combersome. I guess the best way to achieve this would be to wait for BIP 118 to be activated and then the eltoo upgrade. This would easily enable multiparty channels. This could be used to achieve a scenario as you described.


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