Bitcoins kaufen - hier geht's - CHIP

/u/btchip from the Ledger Wallet company has hated Bitcoin Cash for a long time. If you complain about the default $2-$3 fees in their software for BCH, he will attack you and accuse you of slander. TLDR: Don't buy a Ledger.

btchip from the Ledger Wallet company has hated Bitcoin Cash for a long time. If you complain about the default $2-$3 fees in their software for BCH, he will attack you and accuse you of slander. TLDR: Don't buy a Ledger. submitted by cryptorebel to btc [link] [comments]

Ledger CTO Nicolas Bacca (u/btchip) insults bitcoin.com hardware wallet as another failed TREZOR clone.

Ledger CTO Nicolas Bacca (u/btchip) insults bitcoin.com hardware wallet as another failed TREZOR clone. submitted by hunk_quark to btc [link] [comments]

/u/btchip from Ledger Wallet company seems to admit in this comment that he does not think Bitcoin Cash has any importance. This is probably why they don't even have BCH as a default app, and allow tons of bugs to persist and blame the BCH network.

btchip from Ledger Wallet company seems to admit in this comment that he does not think Bitcoin Cash has any importance. This is probably why they don't even have BCH as a default app, and allow tons of bugs to persist and blame the BCH network. submitted by cryptorebel to btc [link] [comments]

Ledger CTO Nicolas Bacca (u/btchip) insults bitcoin.com hardware wallet as another failed TREZOR clone.

Ledger CTO Nicolas Bacca (u/btchip) insults bitcoin.com hardware wallet as another failed TREZOR clone. submitted by hunk_quark to ledgerwallet [link] [comments]

BTChip Launches Multi-Signature USB Bitcoin Wallet

BTChip Launches Multi-Signature USB Bitcoin Wallet submitted by HostFat to Bitcoin [link] [comments]

/u/btchip from Ledger Wallet company seems to admit in this comment that he does not think Bitcoin Cash has any importance. This is probably why they don't even have BCH as a default app, and allow tons of bugs to persist and blame the BCH network.

btchip from Ledger Wallet company seems to admit in this comment that he does not think Bitcoin Cash has any importance. This is probably why they don't even have BCH as a default app, and allow tons of bugs to persist and blame the BCH network. submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Ledger CTO Nicolas Bacca (u/btchip) insults bitcoin.com hardware wallet as another failed TREZOR clone.

Ledger CTO Nicolas Bacca (u/btchip) insults bitcoin.com hardware wallet as another failed TREZOR clone. submitted by ABitcoinAllBot to BitcoinAll [link] [comments]

/u/btchip from the Ledger Wallet company has hated Bitcoin Cash for a long time. If you complain about the default $2-$3 fees in their software for BCH, he will attack you and accuse you of slander. TLDR: Don't buy a Ledger.

btchip from the Ledger Wallet company has hated Bitcoin Cash for a long time. If you complain about the default $2-$3 fees in their software for BCH, he will attack you and accuse you of slander. TLDR: Don't buy a Ledger. submitted by BitcoinAllBot to BitcoinAll [link] [comments]

BTChip Launches Multi-Signature USB Bitcoin Wallet

BTChip Launches Multi-Signature USB Bitcoin Wallet submitted by BTCNews to BTCNews [link] [comments]

BTChip Launches Highly Protected USB Bitcoin Wallet

BTChip Launches Highly Protected USB Bitcoin Wallet submitted by voyagerdoge to DogeNews [link] [comments]

2nd Passphrase via pIN , how is that changing the private key recovery process?

u/btchip, when you use the feature with a 2nd passphrase, for example the method by a second PIN.
1) When you have such a 2nd PIN, how exactly does it work when you like to use ledger with 3rd party wallets like MEW or Metamask for example, how does the process change of coupling Ledger with the other wallet?
2) How exactly does the process of recovering your funds change, when using this tool from github? https://github.com/iancoleman/bip39
Can someone please walk me through the steps. Assume for this case we like to recover one Bitcoin Account. And one Ethereum Account, Both PINs of Ledger are known, 24 word mnemonic is also known. thx
submitted by ollreiojiroro to ledgerwallet [link] [comments]

@Ledger BTCHIP: Have you patched this CRITICAL vulnerability discovered by ZENGO: DoS attacks on Ledger Live Wallets making wallet funds PERMANENTLY unusable?

https://www.coindesk.com/researchers-expose-flaw-in-bitcoin-wallets-that-could-be-exploited-for-double-spending
Ledger u/btchip, u/fabnormal, what is going on with this incredible attack vector reported by ZENGO (see above link)? About allowing "replace by fee" RBF function by the Live Wallet.
The article states that you have only patched one of TWO CRITICAL vulnerabilities. You fixed the part "user erroneously believes a pending transaction has already been confirmed".
But this is only one - the much less dangerous - part of the vulnerability.
What about this even more dangerous SECOND ATTACK vector, also linked to the RBF function?
This second flaw is essentially a DoS attack which PERMANENTLY destroys a user's wallet address and makes spending from it impossible
When are you solving and patching this attack vector? And can you solve it? I understand you should adjust your *coin selection algorithm *
This second attack is incredible, it is a direct knockout, anyone with some knowledge can destroy any user's wallet at will. Anytime, from anywhere. No physical access needed, no spyware or hacking needed!
And the user can't do a thing about it to prevent it. How are you allowing such a huge vulnerability to exist?!
Who needs the hardware security if anyone can block you from USING your wallet?! in the end it is like stealing, in both cases you cannot spend anymore.
, Here the quote how the article describes this attack:
"Attacker artificially inflates a victim's balance by sending repeated transactions to her wallet. This can be done without a victim's consent. By rerouting the transactions before they are confirmed, the victim's stated wallet balance and actual funds are again decoupled, making their wallet unusable. Worse, the attack can affect multiple wallets at the same time."
"Essentially, it’s a denial of service (DoS) attack, preventing people from using their wallets. This also disables other kinds of sending attempts if the wallet’s coin selection algorithm chooses funds from this nonexistent transaction,”
This is an incredible vulnerability, no way to prevent. Explain to use have you solved this already, or what is the status? Or do you like to keep it that way, why?! Thanks
submitted by diwnuwlnswkings to ledgerwallet [link] [comments]

RBF bricking possible?

This thread (https://old.reddit.com/ledgerwallet/comments/hjypec/double_spend_possible_on_ledge) was on the RBF vulnerability. btchip linked to Ledger's website post on the matter (https://www.ledger.com/trickery-is-not-a-vulnerability). I might have missed something; but it does not seem to address the second order attack which could permanently disable a wallet with or without the victim’s knowledge of the transaction. From https://www.bit-cointalk.com/2020/07/02/researchers-expose-flaw-in-bitcoin-wallets-that-could-be-exploited-for-double-spending/ : "Essentially, it’s a denial of service (DoS) attack, preventing people from using their wallets. “This also disables other kinds of sending attempts if the wallet’s coin selection algorithm chooses funds from this nonexistent transaction,” Ohayon said. These wallets are “bricked,” to use Sutch’s parlance.
The technical details are over my old head... but the mention of "bricking" causes alarm. The post on Ledger's site states that " your crypto, recovery phrase, private keys, PIN code etc. are not at risk. ". But this is in reference to the first type of RBF vulnarability... not the second one. So is "bricking" possible?
submitted by satumadu to ledgerwallet [link] [comments]

Electron Cash will support the Ledger Wallet in it's upcoming release, so you can send cheap transactions again.

Electron Cash will support the Ledger Wallet in it's upcoming release, so you can send cheap transactions again. submitted by Merculeses to btc [link] [comments]

Ledger CTO requests suggestions to fix their product. Claims BCH is ‘fundamentally broken’.

EDIT2: I have seen a few comments and posts that make me believe that there is a fairly straightforward fix that can be implemented here.
u/btchip, you said you run your own servers to handle the fee calculations. Would you be willing to either connect to an external mining node running Bitcoin Unlimited or switch one of your non mining nodes to their software? They have indicated that their rpc response has been completely overhauled. I’ve also heard that they are discussing fees in the range of 10 bytes/satoshi.
Can anyone from Bitcoin unlimited comment?
I just had a fairly robust back and forth with u/btchip regarding the ongoing issues people (myself included) have been having with the ledger fee estimator and the low fee bug in the ledger software. u/btchip asserted several times that the issue is not with the ledger software but is related to an RPC call they are using to retrieve fee estimates from a set of non-mining Bitcoin ABC nodes they run for this purpose.
In the final message of our exchange u/btchip asks for ideas on how to fix this issue so I would like to ask the BCH community (devs in particular) how this is being done in other wallets. Clearly, the mempool data shows that many fee estimations are wildly higher than what they need to be so maybe there is some truth to what u/btchip says and maybe this is affecting other wallets. Can anyone offer some insight into this element of the code? How does the bitcoin.com wallet do this same estimation? I always get a 1 or 2 satoshi/byte fee from them whereas I always see fee estimates of 50+ sat/b in the ledger software.
Is there any truth to what u/btchip says, and if so is anyone working on improving this element of any of the current bitcoin node clients? Can we point u/btchip towards a node software with a better implementation of that particular rpc call? I am not very knowledgeable in a lot of this so any help you can give to trying to resolve this would be much appreciated.
If you want to read the exchange the thread is here: https://np.reddit.com/ledgerwallet/comments/7mzodj/bch_estimator_for_ledger_chrome_app/?st=JBTLY1SK&sh=e56cdba3
EDIT: thanks everyone for the discussion and thanks especially to u/btchip for taking the time to come here and discuss. Hopefully this can be resolved quickly so we can all get back to using our peer to peer electronic cash with super low fees and fast transaction times.
submitted by The_Beer_Engineer to btc [link] [comments]

PSA to all those who are using a LedgerWallet to store their BCH. Transactions with a fee of <10 sat/byte will not confirm due to a bug in ledger's node software

Currently there is an issue with ledger's nodes that they use to broadcast transactions, whereby any transaction with a fee of 10 sat/byte or less will not broadcast to the network.
This is NOT an issue with BCH, and is an issue with ledger's own nodes.
Also, its worth mentioning that with the way their CTO btchip has been responding, it might be worth seeking an alternative hardware wallet.
https://www.reddit.com/ledgerwallet/comments/7o2s2when_will_ledger_finally_fix_their_1_satbyte/
His responses can basically be summed up as "why don't you send a pull request to our github.com", instead of ledger actually fixing the issue.
Telling the average user that if there's a problem with the companies software they should fix it themselves is pretty ridiculous.
Users have paid a lot for this product, the company should hire sufficient programmers to ensure that product works as intended. Not tell users to fix it themselves.
The whole point of Bitcoin Cash is that fees are low. If a user is having to pay 10 times the necessary fee that is a serious issue.
submitted by Afasso to btc [link] [comments]

BCH Paris Meetup and a call for help

Hi everyone,
I've been working on my own to build the BCH Community France needs.
So far, I've been delighted to see all the positive response I received since I launched the Meetup event on 1st of January .
Here is what has been done so far:
I'm planning to do a lot more events this year and increase adoption but it will be difficult to fight all the battles at the same time. I would really like if any French people here to give some help scaling the Meetups so I don't have to do them all on my own. We also need a website to communicate in French on BCH and help adoption with POS solutions. I can't simply install Bitcoin.com wallets at shops (or am I wrong?).
Any BCH tips would be appreciated also, I have been implementing dozens of Bitcoin.com wallets in my friends phones, but I need to scale this stuff too. With BCH tips, I would be able to buy the material and give BCH to attendees. I've spent 177€ on Meetup subscription, stickers and magnets so far.
For those of you who would like to do a Meetup in their city, here are some tips: - open the meetup, it costs about 50€ for 6 month, launch the event with one month due date - communicate on it with twitter, Reddit and Facebook crypto related groups - Ask BCF and Bitcoin.com some help, they might send also promotional material! - Ask geek bars to accept BCH and to host the event. Come there with a friend to do a demo before even asking. Just send BCH to your friends to show them that it is safe and instantaneous with Bitcoin.com and BCH.
Let me know if you need more informations!
Bitcoin Cash Paris Meetup will be held on February 1st, 7PM at la Maison du Bitcoin. Social Meetup will start at 9:00 PM.
Link to MDB meetup: http://meetu.ps/e/DMnjj/Dtc3a
Link to the meetup I launched: http://meetu.ps/e/DHdcY/Dtc3a
Link to my twitter account: https://twitter.com/6enoit/status/948221102324674566
BCH:
1ENiqaXDWyANLqu8DLXWMi4dp4pJUTqu3c
submitted by coinfeller to btc [link] [comments]

Attack Vectors found against Ledger Wallet and Many Other Hardware Wallets [Full Text paper]

UPDATE(1): btchip (Ledger's CTO) is addressing this paper here.
UPDATE(2): Discussion with bgok (from KeepKey) here.
UPDATE(3):
After talking with btchip and bgok, It looks like the only theoretically exploitable issue would be if someone swapped your usb cable with a usb cable which snooped on you. Beyond that (from here):
malware with enough privilege to snoop on the bus will also have enough privilege to extract any secret material from the client
I've reached out to the paper's authors to see if they want to refute the above point. Beyond that, maybe just use your own USB cable if you are concerned about the theoretical USB Cable snooping exploit.
Original Post:
Researchers have found that Ledger, Trezor, and many other hardware wallets transmit in clear text.
As a result, they have demonstrated a number of different attacks (master seed, master public key, ...) on Ledger, but Trezor and KeepKey have the same exploit.
See the full text paper from Bing's archive.
P.S. - I originally submitted this on BTC, but there was a pay wall.
submitted by jonathan_white to btc [link] [comments]

Percentage of Segwit Transactions Hits 8%, Mem Pool is Empty

Developed primarily to solve a long-standing vulnerability in Bitcoin (transaction malleability), it also had the side effect of providing more on-chain capacity, & reducing fees for sending / receiving Bitcoins.
SegWit Charts Transaction percentage hits 8%: http://segwit.party/charts/
Shapeshift IS Now One of the Leading SegWit Adopters! Shapeshift is responsible for 2% to 3% of ALL Bitcoin transactions. What this means:
• Lower mining fees for ShapeShift users buying or selling Bitcoin
• Less data per transaction (increasing scale capacity of network)
Source: https://info.shapeshift.io/blog/2017/10/05/shapeshift-now-one-leading-segwit-adopters
Unconfirmed Transactions (MEM Pool) are really low, at around 10,000. All this year, before SegWit got activated, Unconfirmed Transactions, were sitting around 150,000. Source: https://blockchain.info/unconfirmed-transactions
Please note, you could get 2 free coins, IF you hold Bitcoin (BTC), when Bitcoin Gold Hard Forks on 25th October, & SegWit2X in mid November.
When the SegWit2X Hard Fork happens in mid November. Coinbase has said that "Customers with Bitcoin balances stored on Coinbase at the time of the fork, will have access to Bitcoin on both blockchains." Source: https://twitter.com/coinbase/status/916430726047817728
Now, you can sell whichever chain of Bitcoin you want to sell, safely, without selling the Bitcoin chain you want to keep.
The only wallet that I know of so far, that has confirmed that they will provide support for SegWit2X chain is the Ledger hardware wallet. They clearly state "if there's no replay protection added we'll force a split before transacting" Source: https://twitter.com/BTChip/status/896056752948486148
submitted by BTCBCCBCH to btc [link] [comments]

What's next for Monero? An Update.

Here's what I've found for the latest things happening in Monero. Feel free to add in the comments below and I'll add to the list.
Kovri
Website
Light Wallets
HW Wallets:
Marketing & Adoption
submitted by E96D40 to Monero [link] [comments]

Bug Report: Missing Funds In Ledger Account Preceded By 0-Balance, Unused Accounts

Dear support,
I'm missing funds, of which I can prove that I ought to have them.
This problem intertwines with a thread I created earlier:
https://www.reddit.com/ledgerwallet/comments/7ipcun/synchronization_error_the_ledger_api_is_having/
Here's an image that summarizes my situation:
https://i.imgur.com/HxlnmBv.png
I've got 5 accounts.
I have 2 Personal Wallet Accounts that are in use with funds that have been sitting there for a long time already. They're not really relevant to my current problem.
Then I have 2 Temp Accounts which were receiving 0.001 transactions, which got cancelled due to low sat/byte. Or so I assume. It's unclear because Ledger has been having sync problems these past few days. But I do not see any outbound 0.001 transactions on the Personal Accounts that I sent them from, so I really think they got cancelled.
By doing this Temp Account cancelled transaction thing, I have managed to create 2 0-balance accounts, which have never been used because the transactions to them got cancelled. Ledger doesn't want this to happen, because it won't let you freely add accounts, unless the previous one is used. It also won't let you delete an account, if it's ever been used. So now I've created an account situation which was never supposed to exist.
Ledger does allow for this situation to be created, and has not anticipated it, because it leads to an error when interacting with such unused 0-balance accounts. When you click a button on such an account (send/receive/settings) it leads to a gray screen that does not show a popup.
This is a serious bug that needs to be fixed.
The proposed fix is that an account, which has had a transaction to it (doesn't matter if it got cancelled or not), is treated like an account that may not be deleted anymore, because it's been used.
During the sync problems, these Temp Accounts were not showing. Now that the sync problems are solved, I have them back again. I've made Temp Account B useable again by sending Temp Account A 0.001 btc. I've made my next account (Binance Receive Account) useable again by sending 0.001 to Temp Account B.
So this is where my 1 Binance Receive Account comes in, which has received 0.01157736 bitcoin to address 36dZ98jhJh9GZz5ukodLLp1LNS6ur4DtgF:
https://btc.com/567e276ab5d1b905d3392f450ea99a2c5d754fbfe070382ab5fec9458fc98b4f
With hundreds of confirmations, you'd expect those funds to show up in my Binance Receive Account. But they don't.
That means I'm currently missing 0.01157736.
I've considered sending 0.001 to the above receive address, in the hopes that Ledger will then spot the ~0.011 that are already supposed to show there. But this might make the situation worse.
How can I force my Ledger to see that the above address does, in fact, have funds?
Please advise, btchip and others.
Sincerely,
Jay
submitted by Jay27 to ledgerwallet [link] [comments]

Collecting your FREE Bitcoin SegWit2X Bitcoins

"Jeff Garzik merged in an opt-in replay protection scheme for Segwit2x yesterday. " according to Jimmy Song
What do I need to do to split my coins after the hard fork?
According to Jimmy: " You will want to move your Legacy coins first to new addresses (your Legacy wallet), but each of these transactions will have to send a small amount to 3Bit1xA4apyzgmFNT2k8Pvnd6zb6TnwcTi."
He carries on: "After that, you can send your 2x coins to different addresses and that would be your 2x wallet."
PLEASE NOT WELL - Jimmy says: "This replay protection scheme only activates after the chain split. That is, it’s useless to send a small amount to the address above until November 18 or so when block 494784 gets mined."
Read Jimmy Song's Full Article Here: https://bitcointechtalk.com/how-segwit2x-replay-protection-works-1a5e41767103
The only wallet that I know of so far, that has confirmed that they will provide support for SegWit2X chain is the Ledger hardware wallet. They clearly state "if there's no replay protection added we'll force a split before transacting" Source: https://twitter.com/BTChip/status/896056752948486148
Now, you can sell whichever chain of Bitcoin you want safely, without selling the Bitcoin chain you want to keep.
This post is based on my current knowledge, which is limited. I will edit & update this post, as further information comes to light. Please carry out your own research before trying to split your coins in November, AFTER the Hard Fork. Stay Safe.
submitted by BTCBCCBCH to btc [link] [comments]

Bitcoin Takeover - YouTube Bitcoin Hack  Free Blockchain Wallet Hack 2020 ... Coinomi Web Wallet - Live Reveal  Bitcoin (BTC), Ethereum ... HardwareWallet.com - Payment with smart card based bitcoin hardware wallet Smart Wallet BitCoin, Credit Cards

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Bitcoin Takeover - YouTube

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