CoinJoin - Revision history

Luke-jr: Reverted edits by TheHiddenWiki (talk) to last revision by Jesse.am

2023-07-03T13:16:32Z

Reverted edits by TheHiddenWiki (talk) to last revision by Jesse.am

← Older revision		Revision as of 13:16, 3 July 2023
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	'''~~[https://bitcoin-mixer.xyz/~~ CoinJoin]''' is a trustless method for combining multiple Bitcoin payments from multiple spenders into a single transaction to make it more difficult for outside parties to determine which spender paid which recipient or recipients. Unlike many other privacy solutions, coinjoin transactions do not require a modification to the bitcoin protocol.		'''CoinJoin''' is a trustless method for combining multiple Bitcoin payments from multiple spenders into a single transaction to make it more difficult for outside parties to determine which spender paid which recipient or recipients. Unlike many other privacy solutions, coinjoin transactions do not require a modification to the bitcoin protocol.

	This type of transaction was first described in posts<ref>[https://bitcointalk.org/?topic=139581 I taint rich! (Raw txn fun and disrupting 'taint' analysis; >51kBTC linked!)]</ref><ref>[https://bitcointalk.org/?topic=279249 CoinJoin: Bitcoin privacy for the real world]</ref> by gmaxwell.		This type of transaction was first described in posts<ref>[https://bitcointalk.org/?topic=139581 I taint rich! (Raw txn fun and disrupting 'taint' analysis; >51kBTC linked!)]</ref><ref>[https://bitcointalk.org/?topic=279249 CoinJoin: Bitcoin privacy for the real world]</ref> by gmaxwell.
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	[[Category:Privacy]]		[[Category:Privacy]]
	~~[[Category:Mixing_Services]]~~

TheHiddenWiki at 16:12, 13 June 2023

2023-06-13T16:12:52Z

← Older revision		Revision as of 16:12, 13 June 2023
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	'''[https://~~coin~~-~~join~~.~~com~~/ CoinJoin]''' is a trustless method for combining multiple Bitcoin payments from multiple spenders into a single transaction to make it more difficult for outside parties to determine which spender paid which recipient or recipients. Unlike many other privacy solutions, coinjoin transactions do not require a modification to the bitcoin protocol.		'''[https://bitcoin-mixer.xyz/ CoinJoin]''' is a trustless method for combining multiple Bitcoin payments from multiple spenders into a single transaction to make it more difficult for outside parties to determine which spender paid which recipient or recipients. Unlike many other privacy solutions, coinjoin transactions do not require a modification to the bitcoin protocol.

	This type of transaction was first described in posts<ref>[https://bitcointalk.org/?topic=139581 I taint rich! (Raw txn fun and disrupting 'taint' analysis; >51kBTC linked!)]</ref><ref>[https://bitcointalk.org/?topic=279249 CoinJoin: Bitcoin privacy for the real world]</ref> by gmaxwell.		This type of transaction was first described in posts<ref>[https://bitcointalk.org/?topic=139581 I taint rich! (Raw txn fun and disrupting 'taint' analysis; >51kBTC linked!)]</ref><ref>[https://bitcointalk.org/?topic=279249 CoinJoin: Bitcoin privacy for the real world]</ref> by gmaxwell.

TheHiddenWiki at 21:19, 3 January 2023

2023-01-03T21:19:34Z

← Older revision		Revision as of 21:19, 3 January 2023
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	[[Category:Privacy]]		[[Category:Privacy]]
			[[Category:Mixing_Services]]

TheHiddenWiki at 20:42, 3 January 2023

2023-01-03T20:42:17Z

← Older revision		Revision as of 20:42, 3 January 2023
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	'''CoinJoin''' is a trustless method for combining multiple Bitcoin payments from multiple spenders into a single transaction to make it more difficult for outside parties to determine which spender paid which recipient or recipients. Unlike many other privacy solutions, coinjoin transactions do not require a modification to the bitcoin protocol.		'''[https://coin-join.com/ CoinJoin]''' is a trustless method for combining multiple Bitcoin payments from multiple spenders into a single transaction to make it more difficult for outside parties to determine which spender paid which recipient or recipients. Unlike many other privacy solutions, coinjoin transactions do not require a modification to the bitcoin protocol.

	This type of transaction was first described in posts<ref>[https://bitcointalk.org/?topic=139581 I taint rich! (Raw txn fun and disrupting 'taint' analysis; >51kBTC linked!)]</ref><ref>[https://bitcointalk.org/?topic=279249 CoinJoin: Bitcoin privacy for the real world]</ref> by gmaxwell.		This type of transaction was first described in posts<ref>[https://bitcointalk.org/?topic=139581 I taint rich! (Raw txn fun and disrupting 'taint' analysis; >51kBTC linked!)]</ref><ref>[https://bitcointalk.org/?topic=279249 CoinJoin: Bitcoin privacy for the real world]</ref> by gmaxwell.

Jesse.am: /* Sounds great! Where is it? */ reword & add table

2022-10-20T12:57:57Z

Sounds great! Where is it?: reword & add table

@@ Line 128: / Line 128: @@
 The two main ready-to-use software CoinJoin implementations are [[Wasabi Wallet]] (https://wasabiwallet.io/) and [[JoinMarket]] (https://github.com/Joinmarket-Org/joinmarket-clientserver). Currently, crypto-processing [[Apirone]] (https://apirone.com/) use pre-mix of UTXO based on CoinJoin technology.
-Wasabi Wallet implements the [https://eprint.iacr.org/2021/206 WabiSabi] protocol for the construction of CoinJoin transactions with the aid of a central coordinator (run by zkSNACKs Ltd., the company that is sponsoring the development of Wasabi) who cannot steal from, nor breach the privacy of the participants. The company makes its income by taking a fee of 0.3% of the UTXOs with values above 0.01 BTC from each initial CoinJoin transaction—there are no coordinator fees on remixes nor coins below the value of 0.01 BTC.
+Wasabi Wallet implements the [https://eprint.iacr.org/2021/206 WabiSabi] protocol for the construction of CoinJoin transactions with the aid of a central coordinator (run by zkSNACKs Ltd., the company that is sponsoring the development of Wasabi) who cannot steal from, nor breach the privacy of the participants. Coinjoining coins with a value above 0.01 BTC costs 0.3% as a [https://github.com/zkSNACKs/WalletWasabi/tree/master/WalletWasabi.Backend coordinator fee] + [https://mempool.space/ mining fees]. Inputs of 0.01 BTC or below do not pay coordinator fees, nor remixes, even after one transaction. Thus, a payment made with coinjoined funds allows the sender and the recipient to remix their coins without paying coordinator fees.
 JoinMarket, instead, works by creating a new kind of market consisting of one group of participants (called market makers) that will always be available to take part in CoinJoins at any time and another group participants (called market takers) that can create a CoinJoin at any time. The takers pay a fee which incentivizes the makers.

Jesse.am: /* Sounds great! Where is it? */

2022-10-17T13:41:44Z

Sounds great! Where is it?

← Older revision		Revision as of 13:41, 17 October 2022
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	The two main ready-to-use software CoinJoin implementations are [[Wasabi Wallet]] (https://wasabiwallet.io/) and [[JoinMarket]] (https://github.com/Joinmarket-Org/joinmarket-clientserver). Currently, crypto-processing [[Apirone]] (https://apirone.com/) use pre-mix of UTXO based on CoinJoin technology.		The two main ready-to-use software CoinJoin implementations are [[Wasabi Wallet]] (https://wasabiwallet.io/) and [[JoinMarket]] (https://github.com/Joinmarket-Org/joinmarket-clientserver). Currently, crypto-processing [[Apirone]] (https://apirone.com/) use pre-mix of UTXO based on CoinJoin technology.

	Wasabi ~~works thanks to~~ a ~~CoinJoin~~ coordinator (run by zkSNACKs Ltd., the company that is sponsoring the development of Wasabi) who cannot steal from, nor breach the privacy of the participants. The company makes its income by taking a fee (0.~~003~~% * anonymity set) from each CoinJoin ~~transaction~~.		Wasabi Wallet implements the [https://eprint.iacr.org/2021/206 WabiSabi] protocol for the construction of CoinJoin transactions with the aid of a central coordinator (run by zkSNACKs Ltd., the company that is sponsoring the development of Wasabi) who cannot steal from, nor breach the privacy of the participants. The company makes its income by taking a fee of 0.3% of the UTXOs with values above 0.01 BTC from each initial CoinJoin transaction—there are no coordinator fees on remixes nor coins below the value of 0.01 BTC.

	JoinMarket, instead, works by creating a new kind of market consisting of one group of participants (called market makers) that will always be available to take part in CoinJoins at any time and another group participants (called market takers) that can create a CoinJoin at any time. The takers pay a fee which incentivizes the makers.		JoinMarket, instead, works by creating a new kind of market consisting of one group of participants (called market makers) that will always be available to take part in CoinJoins at any time and another group participants (called market takers) that can create a CoinJoin at any time. The takers pay a fee which incentivizes the makers.

Jesse.am: /* How does this compare to CoinWitness? */ fixed typo

2022-10-17T13:17:58Z

How does this compare to CoinWitness?: fixed typo

← Older revision		Revision as of 13:17, 17 October 2022
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	===How does this compare to [https://bitcointalk.org/index.php?topic=277389.0 CoinWitness]?===		===How does this compare to [https://bitcointalk.org/index.php?topic=277389.0 CoinWitness]?===

	CoinWitness is even rocket-sciency than Zerocoin, it also shares many of the weaknesses as a privacy-improver: Novel crypto, computational cost, and the huge point of requiring a soft fork and not being available today. It may have some scaling advantages if it is used as more than just a privacy tool. But it really is overkill for this problem, and won't be available anytime real soon.		CoinWitness is even more rocket-sciency than Zerocoin, it also shares many of the weaknesses as a privacy-improver: Novel crypto, computational cost, and the huge point of requiring a soft fork and not being available today. It may have some scaling advantages if it is used as more than just a privacy tool. But it really is overkill for this problem, and won't be available anytime real soon.

	===Sounds great! Where is it?===		===Sounds great! Where is it?===

Jesse.am: /* Motivation */ grandchildren is one word

2022-10-17T12:50:04Z

Motivation: grandchildren is one word

← Older revision		Revision as of 12:50, 17 October 2022
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	Bitcoin is often promoted as a tool for privacy but the only privacy that exists in Bitcoin comes from pseudonymous addresses which are fragile and easily compromised through reuse, "taint" analysis, tracking payments, IP address monitoring nodes, web-spidering, and many other mechanisms. Once broken this privacy is difficult and sometimes costly to recover.		Bitcoin is often promoted as a tool for privacy but the only privacy that exists in Bitcoin comes from pseudonymous addresses which are fragile and easily compromised through reuse, "taint" analysis, tracking payments, IP address monitoring nodes, web-spidering, and many other mechanisms. Once broken this privacy is difficult and sometimes costly to recover.

	Traditional banking provides a fair amount of privacy by default. Your inlaws don't see that you're buying birth control that deprives them of ~~grand children~~, your employer doesn't learn about the non-profits you support with money from your paycheck, and thieves don't see your latest purchases or how wealthy you are to help them target and scam you. Poor privacy in Bitcoin can be a major practical disadvantage for both individuals and businesses.		Traditional banking provides a fair amount of privacy by default. Your inlaws don't see that you're buying birth control that deprives them of grandchildren, your employer doesn't learn about the non-profits you support with money from your paycheck, and thieves don't see your latest purchases or how wealthy you are to help them target and scam you. Poor privacy in Bitcoin can be a major practical disadvantage for both individuals and businesses.

	Even when a user ends address reuse by switching to [http://bitcoinism.blogspot.com/2013/07/reclaiming-financial-privacy-with-hd.html BIP 32 address chains], they still have privacy loss from their old coins and the joining of past payments when they make larger transactions.		Even when a user ends address reuse by switching to [http://bitcoinism.blogspot.com/2013/07/reclaiming-financial-privacy-with-hd.html BIP 32 address chains], they still have privacy loss from their old coins and the joining of past payments when they make larger transactions.

Belcher: Reverted edits by Aapachi (talk) to last revision by Apirone.com

2021-09-21T13:49:03Z

Reverted edits by Aapachi (talk) to last revision by Apirone.com

← Older revision		Revision as of 13:49, 21 September 2021
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	* [[Common-input-ownership heuristic]]		* [[Common-input-ownership heuristic]]
	* [[JoinMarket]]		* [[JoinMarket]]
	* [https://btcwalletmixer.com Coinjoin Service Online]

	==References==		==References==

Aapachi: /* See Also */

2021-09-20T18:13:33Z

← Older revision		Revision as of 18:13, 20 September 2021
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	* [[Common-input-ownership heuristic]]		* [[Common-input-ownership heuristic]]
	* [[JoinMarket]]		* [[JoinMarket]]
			* [https://btcwalletmixer.com Coinjoin Service Online]

	==References==		==References==