Using change addresses does not increase privacy, just fees

[Guessti]

For all you idiots who keep saying I'm wrong.

https://coinguides.org/bitcoin-change-address-output/

Literally don't need a change address.

Nothing I said is wrong.  

If you think that article is wrong then you are part of the problem not the solution.

Learn to read for once.   I explained if you keep your funds in 1 address you won't have the issue of paying higher fees later. You aren't changing the address at all.

As I said even if you only have 1 address to receive funds you will still pay a higher fee if you have multiple unspent transactions from that 1 address.

You can only reduce the fees if you consolidate all unspent transactions into one unspent transaction.

No, if you keep all your bitcoins in 1 bitcoin address you will always pay the same fee no matter the amount of bitcoins you send - since they are coming from 1 single address and not from multiple addresses. Everything is explained clearly in the article I posted.

Ignore all the technical bs idiots these who clearly never used bitcoin in the past are spouting (10+ years ago)

You do NOT need to use a change address, you do NOT need to change your bitcoin address EVER. Even that article and many others like it describe how the "privacy" added is questionable.

Who ever keeps trying to suggest you don't pay higher fees is spreading pure lies and propaganda. This "privacy" "feature" comes with a cost.





EDIT:

Further proving these idiots wrong, anyone having the same issue as me can see TrustWallet actually removed using change wallets/addresses. I have tested it a few times now and can confirm - your bitcoin wallet address stays the same no matter what. (your bitcoins never get sent to a different address)

Transfering my funds from yet another wallet who was using change addresses, the fees were higher because multiple addresses had my bitcoins - simply from sending some bitcoin. (they get as high as $5-$10+ from ONE SINGLE TRANSACTION!!) Now I no longer have that problem.

It is very VERY simple unlike these morons are trying to make it - the more addresses your bitcoins get spreads to, the higher the fees will be if you ever send enough bitcoin that needs to use 2 or more of those addresses. If all your bitcoins stay in 1 address the fee stays the same no matter what the amount of bitcoin you are sending is! Your bitcoins still get spread around even if you receive them in the same address from everyone whenever you send some of your bitcoins out.

You can further confirm what I'm saying is true here:

https://community.trustwallet.com/t/removal-of-the-auto-change-address-feature/155623

Removal of the Auto-Change Address Feature
What is Auto-Change?
The Trust Wallet team has decided to remove Auto-Change address functionality from UTXO blockchains, namely:
Bitcoin (BTC)

Using TrustWallet is the solution to disabling this "privacy feature" back to how all Bitcoin wallets use to work. Thank you TrustWallet!!! 

[michellee]

I guess it depends on each person who owns Bitcoin and that is the freedom that Bitcoin gives each user. If they are willing to pay fees that may be higher than others, they can have more wallets. But not for those who only want 1 Bitcoin wallet because they don't want to pay higher fees.

It is each person's choice, as with privacy issues. Those who have learned much about Bitcoin will choose which makes them comfortable. And of course, it will be different from other people's choices so it's normal if they still stick with their choice.

So it's about comfort, which varies from one person to another. We should not force people to follow ways we think are easy or something else because they may find it easiest.

[LoyceMobile]

I guess it depends on each person who owns Bitcoin and that is the freedom that Bitcoin gives each user. If they are willing to pay fees that may be higher than others, they can have more wallets. But not for those who only want 1 Bitcoin wallet because they don't want to pay higher fees.

Quoting this BS to notify your campaign manager. Is that Royse777? You clearly have no idea what you're talking about, and didn't read the topic.

[Charles-Tim]

https://community.trustwallet.com/t/removal-of-the-auto-change-address-feature/155623

Removal of the Auto-Change Address Feature
What is Auto-Change?
The Trust Wallet team has decided to remove Auto-Change address functionality from UTXO blockchains, namely:
Bitcoin (BTC)

Why was the change implemented?
Initially, the Auto-Address change was turned on by default. Then, it was disabled and a toggle was implemented to manually enable this feature. But due to the maintenance cost and the lack of demand, it would be a better experience for all to just completely turn it off.

Lack of demand? How did CZ, Binance, Trustwallet developers know that people do not want change address? They are looking for ways to make bitcoin to be centralized, they created their own centralized coins, they pegged bitcoin and deceiving people to think that they are bitcoin when they are altcoins, and see an obvious lie again and ignorant people like Guessti believed this. If you are looking for a bitcoin wallet, Trustwallet has been one of the worst bitcoin wallet so far with obvious reasons.

[franky1]

a. when you want to keep the remainder even in a re-used address the remainder value of a transaction goes to a "change address"
(even if you re-use the same address for the change)

the term you are looking for is re-used change address

b. when wanting to spend those remainders. collating each of those amounts is not a single input. its collating multiple inputs from multiple spend receipts called utxo's
(even if you re-use the same address for the change)

so you are still listing many utxo's even from the same address.. so it still adds data to a tx meaning more bytes meaning more sats

inputs of a transaction at data-byte level are not "addresses" but things called utxo's

the only way to save on fee's is to.. when fee's are extremely low collate all of the utxo of your address as inputs and then spend them back to your address as a single output to combine them into a single utxo of a combined amount. so that later when fee's per byte rise and you want to buy something you only have to list one UTXO of the combined amount.
but this does as just said mean making another tx to combine the utxo's meaning a fee is involved to merge the value into one utxo, so should be done when fee's are low

[DannyHamilton]

For all you idiots who keep saying I'm wrong.

https://coinguides.org/bitcoin-change-address-output/

Did you even read that article.  It literally says you are wrong.

Literally don't need a change address.

Correct. You could just send ALL of your change to the miners as a transaction fee instead, but that would be really expensive. It seems like a much better idea to just send it back to a new address in your wallet, just like the article you linked explains.

Nothing I said is wrong.  

Almost everything you've said has been wrong, but it seems like you know that and are just having fun making things up.

If you think that article is wrong then you are part of the problem not the solution.

I think the article is right, and that you are wrong. I guess that means you are part of the problem, not the solution?

if you keep all your bitcoins in 1 bitcoin address you will always pay the same fee no matter the amount of bitcoins you send - since they are coming from 1 single address and not from multiple addresses.

Absolute nonsense.

Everything is explained clearly in the article I posted.

The article says the opposite of what you are saying.

You do NOT need to use a change address,you do NOT need to change your bitcoin address EVER.

That's probably the only correct thing you've said in all of these conversations.

You do not NEED to use a change address.  You can just reuse a single address for your change. It's a bad idea, and it won't fix anything that you're complaining about, but you can do it.

Even that article and many others like it describe how the "privacy" added is questionable.

The article literally says in the 4th sentence, "is one of the key privacy feature of Bitcoin."

It also says:

• sending to same address . . . reduces users privacy
• change addresses play a key role in improving privacy
• to preserve anonymity and to make the job of tracing transaction more difficult change outputs are usually send to a newly created change address

Who ever keeps trying to suggest you don't pay higher fees is spreading pure lies and propaganda. This "privacy" "feature" comes with a cost.

Repeating it over and over doesn't make it true.

TrustWallet actually removed using change wallets/addresses. I have tested it a few times now and can confirm

Ah. I thought you were a troll. Sounds like maybe you're just a Binance shill?

It is very VERY simple unlike these morons are trying to make it - the more addresses your bitcoins get spreads to, the higher the fees will be if you ever send enough bitcoin that needs to use 2 or more of those addresses. If all your bitcoins stay in 1 address the fee stays the same no matter what the amount of bitcoin you are sending is!

That's 100% fabricated false information. Good luck with that.

[adaseb]

Wasn’t the reason why it’s suggested to use Change addresses so if there is some bug in the hashing of the public key, your chances are higher of not being targeted.

Basically when you spend an output you show your pub key, if you never send your outputs then your public key is a secret. Since the public key is known there is slightly less security. Hence why it’s smart to use change addresses.

Is this correct?

[DannyHamilton]

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Ignore all the technical bs idiots these who clearly never used bitcoin in the past are spouting (10+ years ago)
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Ah yes.  I see what you mean now.  For example, here's one of those "technical bs idiots who clearly never used bitcoin" giving some of that crazy advice about protecting privacy by using new addresses all the way back in 2009

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For greater privacy, it's best to use bitcoin addresses only once.
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LOL. Clearly this dummy had no idea how Bitcoin works at all.

Obviously it's much better for me to take my advice from this Guessti guy who showed up complaining one day and refuses to learn anything new.

 

[digaran]

Wasn’t the reason why it’s suggested to use Change addresses so if there is some bug in the hashing of the public key, your chances are higher of not being targeted.

Basically when you spend an output you show your pub key, if you never send your outputs then your public key is a secret. Since the public key is known there is slightly less security. Hence why it’s smart to use change addresses.

Is this correct?

Of course if your "public key" is kept secret, the only way to access your funds is through breaking 2 hash functions, rmd160 and sha256, and it's not about a bug or anything, it's just that if you have a public key, there are solutions to find the private key, these solutions are extremely difficult to solve especially for 256 bit keys.

OP should either use an open source wallet which allows you to turn off the use of change address, or simply sends his bitcoins to only one address, after a few transactions where he sends the changes to only 1 address, he will find out change add or no change add, it's all the same, electrum wallet is good to change such settings.

- snip -
For greater privacy, it's best to use bitcoin addresses only once.
- snip -

Such a noob, I hope he reads this topic to learn about bitcoin from OP.🙃