<p>Using ring signatures off-chain to form a coinjoin transaction sounds hard, especially since because BTC doesn't have ring signature support without a hard fork or a soft fork.</p>
<p>You may find <a href="https://github.com/cashshuffle/spec/blob/master/CASHFUSION.md" rel="nofollow noreferrer">Cashfusion</a>, an instance of CoinJoin shuffling, interesting, it's fully applicable to BTC and it uses TOR, which is simpler than Ring Signatures.</p>

CC BY-SA 4.0
2021-02-06T15:33:56.223Z
Thank you so much @MCCCS. Cashfusion and Cashsuffle is very interesting. I will check it out!!
Gokul Alex
CC BY-SA 4.0
2021-02-06T15:32:30.087Z
2021-02-06T15:32:30.087Z
MCCCS
<p>There is a Ring Signature implementation in C++ by Libbitcoin team. We can find the details in the following <a href="https://github.com/libbitcoin/libbitcoin-system/blob/bef130bdc8c57808dceab99d6867f3c58acf4e92/include/bitcoin/system/math/ring_signature.hpp" rel="nofollow noreferrer">GitHub</a> repository. Is it feasible to use Monero like Ring Signatures together with the CoinJoin Technique in Bitcoin without a soft fork on the core protocol.</p>

<cryptography><c++><coinjoin>
Feasibility of using Ring Signatures with CoinJoin Technique
Gokul Alex
# Feasibility of using Ring Signatures with CoinJoin Technique

(Asked by: username_0 on 2021-02-06)

There is a Ring Signature implementation in C++ by Libbitcoin team. We can find the details in the following [GitHub](https://github.com/libbitcoin/libbitcoin-system/blob/bef130bdc8c57808dceab99d6867f3c58acf4e92/include/bitcoin/system/math/ring_signature.hpp) repository. Is it feasible to use Monero like Ring Signatures together with the CoinJoin Technique in Bitcoin without a soft fork on the core protocol.

**Tags:** cryptography, c++, coinjoin


---

## 1 answers

### Answer by username_1 on 2021-02-06. Score: 1

Using ring signatures off-chain to form a coinjoin transaction sounds hard, especially since because BTC doesn't have ring signature support without a hard fork or a soft fork.

You may find [Cashfusion](https://github.com/cashshuffle/spec/blob/master/CASHFUSION.md), an instance of CoinJoin shuffling, interesting, it's fully applicable to BTC and it uses TOR, which is simpler than Ring Signatures.

> **Comments:**
> **username_0**: Thank you so much @username_1. Cashfusion and Cashsuffle is very interesting. I will check it out!!  

---

