Bitcoin Wallets: Die 7 BESTEN WALLETS im Vergleich

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CryptoAustralia

WELCOME TO THE WORLD OF CRYPTOCURRENCY! Crypto Australia is a subreddit for Australians and New Zealanders to talk about anything related to crypto.
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CONVERT NON SPENDABLE BITCOIN TO SPENDABLE.

The non spendable bitcoin is a feature only possible on the blockchain.info platform. This is a watch only wallet. A public key was imported into the blockchain account. If you don't own your private key, you don't own the bitcoins. ... No. Of course not. You always keep track of your key and don't jeopardize the .... Paper wallets are an effective way of storing Bitcoin private keys offline. ....You can write me on bitcoinretrievalgenius gmail com.
submitted by conniemoribe to u/conniemoribe [link] [comments]

Warren Togami (Blockstream) on Twitter: “Some people need to better understand that LN requires private keys controlling those balances to be online 24/7. That is the opposite of conventional wisdom when we suggest people to keep their Bitcoin wallet keys offline.”

Warren Togami (Blockstream) on Twitter: “Some people need to better understand that LN requires private keys controlling those balances to be online 24/7. That is the opposite of conventional wisdom when we suggest people to keep their Bitcoin wallet keys offline.” submitted by BitcoinXio to btc [link] [comments]

How to Secure Bitcoins?

How to Secure Bitcoins?

https://preview.redd.it/rtdvbwxewag21.jpg?width=1080&format=pjpg&auto=webp&s=8883896891bdf7c95944a3c3c35e70e560d0d782

Hackers, thieves and scammers tend to steal anything that is valuable. So, securing something as valuable as your bitcoins is necessary.
Ledger Nano S is the most secure wallet developed by Ledger, which is a bitcoin security company that offers a wide-range of secure bitcoin storage devices.
TREZOR is a hardware wallet that was built to secure bitcoins, and can generate bitcoin private keys offline.
These are the two most secured wallet for storing bitcoin. Below are some tips in securing your bitcoins:
  1. Don't expose your private keys or never store them online.
  2. Avoid using the same password to your bitcoin account on any other site.
  3. Avoid give away links that entail downloading and installing files on your devices.
  4. Always update your operating system to the latest version to ensure full security compliance
  5. Never use an unknown wallet to store your fund or avoid downloading a phishing app.
Source: https://bitcointalk.org/index.php?topic=5084108.0
submitted by HBWallet to EcoProTech [link] [comments]

Remember folks, your Bitcoin isn't stored in your hardware/software wallet like a USB stick, but on the blockchain... The same private keys can be used across multiple devices at the same time... TL:DR - Vendor lock-in isn't a thing with decent wallets + keep your seed offline and secure

Remember folks, your Bitcoin isn't stored in your hardware/software wallet like a USB stick, but on the blockchain... The same private keys can be used across multiple devices at the same time... TL:DR - Vendor lock-in isn't a thing with decent wallets + keep your seed offline and secure submitted by Crypto-Guide to Bitcoin [link] [comments]

Bitcoin Hardware Wallets: A Brief Overview

This page will be expanded in the future, but for now will just provide brief overviews.
What is a hardware wallet?
Hardware wallets are physical devices that store Bitcoin private keys offline. Hardware wallets are popular because they make secure Bitcoin storage easy and simple.
Current Hardware Wallets
Ledger
Ledger is a Bitcoin security company and offers three hardware wallets: Ledger Nano, Ledger HW.1, and the Ledger Unplugged.
TREZOR
TREZOR was the first to offer a screen on its device. http://www.bitcointrezor.com/
KeepKey
KeepKey is the newest addition to the hardware wallet family. Like TREZOR, It offers a digital screen and buttons for extra security.
submitted by jtos3 to hardwarewallets [link] [comments]

Are there online tools so that a person, by an online tool #1 ((which can be downloaded and then run offline) ), might create a transaction offline with their private key and then, by an online tool#2, might broadcast this signed transaction into the Bitcoin blockchain?

submitted by andrrpetr to Bitcoin [link] [comments]

08-09 12:03 - 'We have been working offline only with private customers until now. And LBC for small trades: BTCLatviaPlease find the BTC Wallets with public keys, where you can see THE history. I've had my guy run some analysis and you can...' by /u/OTCFinance removed from /r/Bitcoin within 0-5min

'''
We have been working offline only with private customers until now. And LBC for small trades: BTCLatviaPlease find the BTC Wallets with public keys, where you can see THE history. I've had my guy run some analysis and you can see under each corresponding address.
I'd just send the first three for now. Keep in mind that the Buyer can simply return the coins and not pay if not satisfied with coins delivered. The Seller would then send another tranche satisfactory to the Buyer.
KEY 1
[[link]7
7,000.0016205 BTC
1DZ 7k BTC 15% mined, remainder a mix of old coins. nothing worrying
PIC: [[link]8
KEY 2
[[link]9
6,877.71333163 BTC
1Ac2 6.9k 96% mined
PIC: [[link]10
KEY 3
[[link]11
5,106.49661412 BTC
1gt 5.1k 100% exchange washed. all huobi and okcoin
PIC: [[link]12
'''
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Author: OTCFinance
1: *ww.bl*ckcha*n.*om/ru/btc/*ddre*s/1*zjE3ANaKLas****e*ToJ4CQ**r**vw*f 2: *tcfi*ance.net/wp*con*en*/uploads*201*/1**w**le*1.*ng 3: www.bl*c**hai**com/ru/btc/add*****1Ac2J*pQ5c*NeSajd*x*dof*eX*n*S35ft 4: o*cf*nanc*.n*t/wp-co*te*t/u**oads/20*6/**/wal**t2.png 5: ww*.bl*c*cha*n.com/ru/*tc*a**ress/1gtm*zwh*Uz*b8XoS*Hwgyr*b*wdZ**o* 6: ot*fina***.net/wp-co***nt/up**a**/2016*10/wallet3.*ng 7: ww*.b*o*kchain*com/ru*b*c/*ddres*/1**jE3*N*KL*sY2n*e5ToJ**QCXrvDvws**^^1 8: otcfinan*e.n*t/**-con*en*/up*o*ds/2016/10/*al**t1.p***^^2 9: *ww.blockc*ain.**m/ru/b***address/1**2*dp*5c9Ne*a*d*x6d*fxe*k*4S*5ft]^^3 10: *tcfinan*e.net/wp-*o*tent/up*oads*20*6/*0**all*t2*p*g]*^4 11: www*blockchai***o**ru*btc/add*e*s/1gtm*z*hq*z*b*XoShHwg**zbJ*d*47ok]^^5 12: otcfi*a*ce*ne*/wp-*on*ent**pload**2*16/10/*allet*.*ng]^^6
Unknown links are censored to prevent spreading illicit content.
submitted by removalbot to removalbot [link] [comments]

The World Wide Web runs on webservers in datacenters. The World Wide Blockchain should also run on "blockservers" in datacenters. The "sweet spot" of Bitcoin scaling, reliability, security & convenience is *nodes in the cloud* + *private keys offline*. The is the future of Bitcoin. Let's embrace it.

Four-Line Summary
(1) Bitcoin nodes (and everyone's public addresses) should be online - in datacenters.
(2) Bitcoin wallets (and your private keys) should be offline - in your pocket.
(3) This architecture provides the optimal combination or "sweet spot" for short-term and long-term Bitcoin scaling, reliability, security & convenience.
(4) The best communications strategy is for us to embrace the approach of "nodes-in-datacenters" a/k/a "blockservers-in-the-cloud" - instead of apologizing for it.
Longer Summary
(1) Bitcoin nodes should be online - on "online public blockservers", ideally running on big, powerful webservers with high connectivity & high-end specs, in datacenters.
(2) Bitcoin private keys should be offline - in "offline private wallets", ideally running on tiny, cheap computers with no connectivity & low-end specs, in your pocket.
https://blockchainbdgpzk.onion/pushtx
(3) We should embrace "nodes-in-datacenters" (ie, "blockservers-in-the-cloud") and "keys-in-your-pocket" as the future of Bitcoin, providing the optimal combination (or "sweet spot") of scaling, reliability, security & convenience.
Details
Bitcoin has been a success for 7 years and is continuing to grow and needs a simple and safe way to scale.
So, now it is time for people to embrace nodes-in-datacenters a/k/a blockservers-in-the-cloud (plus private keys offline - to enable 100% security with "offline signing of transactions") as Bitcoin's future.
Why?
(1) ...because everything on the web actually works this way already - providing the optimal combination of scaling, reliability, security & convenience.
  • You already keep your passwords for websites and webmail on you - usually physically offline (in your head, written on a slip of paper, or maybe in an offline file, etc.)
  • When was the last time you ran a server out of your home to continually spider and index terabytes of data for the entire web?
  • Why should you need to hold 60 GB of data (and growing) when you just want to check the balance of a single Bitcoin address (eg, one of your addresses)?
  • Bitcoin is still very young, and if in order to fulfill its earlier promise about banking the unbanked, microtransactions, DACs (decentralized autonomous corporations), IoT (Internet of Things), smart contracts, etc., then we should hope and expect that the blockchain will someday take up terabytes, not "mere" gigabytes - just like Google's giant search engine index, which they update every few minutes.
  • Do you really think you should be performing this kind of heavy-duty indexing, querying and "serving" on a low-end machine behind a low-end connection in your home, when companies like Google can do it so much better?
  • As long as you physically control your own private keys, who cares if you rely on blockchain.info or blockexplorer.com (or someday: bitcoin.google.com or bitcoin.msn.com or bitcoin.yahoo.com) to lookup up public information about balances and transactions on Bitcoin addresses?
  • They're not going to be able to lie to you. The meaning of "permissionless" and "decentralized" is that anybody can set up a full-node / "blockserver" (plus "blockchain search engines"), and anybody can (and will) immediately report it to the whole world if a website like blockchain.info or blockexplorer.com (or someday: bitcoin.google.com or bitcoin.msn.com or bitcoin.yahoo.com) provides false information - which would seriously damage their business, so they'll never do it.
(2) ...because webservers and webmail don't lie to you, and "nodes-in-datacenters" (ie, "blockservers-in-the-cloud") aren't going to be able to lie to you either - since it would not be in their interest, and they would get caught if they did.
  • When was the last time google.com or or yahoo.com or msn.com (bing.com) lied to you when you performed a search or looked up some news?
  • When was the last time blockchain.info or blockexplorer.com lied to you when you checked the balance at a Bitcoin address?
  • Currently, with billions of websites and news sources ("webservers") running around the world in datacenters, there are "web search engines" (eg, google.com or news.google.com or msn.com or yahoo.com) where you can look up information and news on the World Wide Web. In order to survive, the business model of these "web search engines" is about getting lots of visitors, and providing you with reliable information. It's not in their best interests to lie - so they never do. These sites simply "spider" / "crawl" / "index" the entire massive web out there (every few minutes actually), and then conveniently filter / aggregate / present the results as a free service to you.
  • In the future, when there are 10,000 or 100,000 Bitcoin full-nodes ("blockservers") running around the world in datacenters, there will be "blockchain search engines" (eg, bitcoin.google.com or bitcoin.msn.com or bitcoin.yahoo.com - just like we already have blockchain.info and blockexplorer.com, etc.) where you will be able to lookup transactions and balances on the World Wide Blockchain. In order to survive, their business model will be about getting lots of visitors, and providing you with reliable information. It's not going to be in their best interests to lie - so they never will. These sites will simply "spider" / "crawl" / "index" the entire massive blockchain out there (every few minutes actually), and then conveniently filter / aggregate / present the results as a free service to you.
  • The business model for "blockchain search engines" might eventually showing ads or sponsored content along with the Bitcoin blockchain search functions which we are primarily interested in. This would be quite usable and simple and safe, and similar to how most people already use sites like google.com, yahoo.com, msn.com, etc.
(3) ...because "nodes-in-datacenters" (ie, "blockservers-in-the-cloud") provide simple scaling now.
  • Nodes-in-the-cloud are the only solution which can provide scaling now - using existing, tested software - by simply adjusting - or totally eliminating - the MAXBLOCKSIZE parameter.
  • They can use existing, tested, reliable software: thousands of 2MB+ nodes are already running.
  • About 1,000 Classic nodes have been spun up in AWS ECS datacenters (Amazon Web Services - Elastic Computer Cloud) in the past month. (Uninformed yes-men at r\bitcoin try to spin this as a "bad thing" - but we should embrace it as a "good thing", explicitly espousing the philosophy outlined in this post.)
  • "Nodes-in-datacenters" (ie, "blockservers-in-the-cloud") can be flexibly and easily configured to provide all the scaling needed in terms of:
    • Bandwidth (throughput)
    • Hard drive space (storage)
    • RAM (memory)
    • CPU (processing power)
  • The yes-men and sycophants and authoritarians and know-nothings on the censored subreddit r\bitcoin are forever fantasizing about some Rube Goldberg vaporware with a catchy name "Lightning Network" which doesn't even exist, and which (at best, if it ever does come into existence) would be doomed to be slow, centralized and expensive. LN is a non-thing.
  • Those same people on the censored r\bitcoin forum are desperately trying to interpret the thousands of Classic nodes as a negative thing - and their beloved non-existent Lightning Network as a positive thing. This is the kind of typical down-is-up, black-is-white thinking that always happens in a censorship bubble - because the so-called Lightning Network isn't even a thing - while Classic is a reality.
(4) ...because "nodes-in-datacenters" (ie, "blockservers-in-the-cloud") provide more reliability / availability.
  • 24/7/365 tech support,
  • automatic server reboots,
  • server uptime guarantees,
  • electrical power uptime guarantees.
(5) ...because "nodes-in-datacenters" (ie, "blockservers-in-the-cloud") provide better security.
(6) ...because "nodes-in-datacenters" (ie, "blockservers-in-the-cloud") provide more convenience.
(7) ...because separating "full-node" functionality from "wallet" functionality by implementing "hierarchical deterministic (HD)" wallets is cleaner, safer and more user-friendly.
Armory, BIP 0032 provide "hierarchical deterministic (HD)" wallets.
https://en.bitcoin.it/wiki/BIP_0032
https://en.bitcoin.it/wiki/Deterministic_Wallet
http://www.bitcoinarmory.com/tutorials/armory-advanced-features/offline-wallets/
https://en.bitcoin.it/wiki/How_to_set_up_a_secure_offline_savings_wallet
http://bitcoin.stackexchange.com/questions/16646/offline-wallets-electrum-vs-armory
https://www.youtube.com/watch?v=DQumISxkJsQ
  • "Hierarchical deterministic" wallets are required in order to be able to keep private keys offline, and "offline-sign" transactions. This is because a wallet needs to be "deterministic" in order to be able to generate the same sequence of random private keys in the offline wallet and the online wallet.
  • "Hierarchical deterministic (HD)" wallets are also required in order to allow a user to perform a single, one-time, permanent backup of their wallet - which lasts forever (since a HD wallet already deterministically "knows" the exact sequence of all the private keys which it will generate, now and in the future - unlike the antiquated wallet in Core / Blockstream's insecure, non-user-friendly Bitcoin implementation, which pre-generates keys non-deterministically in batches of 100 - so old backups of Core / Blockstream wallets could actually be missing later-generated private keys, rendering those backups useless).
  • Bitcoin is now over 7 years old, but Core / Blockstream has mysteriously failed to provide this simple, essential feature of HD wallets - while several other Bitcoin implementations have already provided this.
  • This feature is extremely simple, because it is all done entirely offline - not networking, no game theory, no non-deterministic behavior, no concurrency. The "HD wallet" functionality just needs some very basic, standard crypto and random-number libraries to generate a "seed" which determines the entire sequence of all the private keys which the wallet can generate.
  • Newer Bitcoin implementations (unlike Core / Blockstream) have now "modularized" their code, also separating "full-node" functionality from "wallet" functionality at the source code level:
  • in Golang - "btcsuite" from Conformal, providing "btcd" (node) and "btcwallet" (wallet):
  • in Haskell + MySQL/SQLite - "Haskoin":
  • There is also a Bitcoin implementation which provides only a full-node:
  • in Ruby + Postgres - "Toshi" from CoinBase:
  • [Tinfoil] The fact that Core / Blockstream has failed to provide HD and failed to clean up and modularize its messy spaghetti code - and the fact that Armory is now out of business (and both companies received millions of dollars in venture capital, and the lead dev of Armory left because the investors were creating needless obstacles regarding intellectual property rights, licensing, etc.) - these facts are suspicious because suggest that these corporations may be trying to discourage dev-friendliness, user-friendliness, security, convenience, and on-chain scaling.
(8) ...because the only thing most users really want and need is total physical control over their private keys.
  • Most people do not want or need to run a Bitcoin full-node, because:
    • A Bitcon full-node consumes lots of disk space and bandwidth, and can be expensive and complicated to set up, run, maintain, and secure.
    • A Bitcoin full-node requires an extremely high level of hardware and software security - which most computer users have never even attempted.
  • As Armory or Electrum users know, the simplest and safest way to provide 100% guaranteed security is by using "offline storage" or "cold storage" or "air gap".
  • In other words, ideally, you should never even let your private keys touch a device which has (or had) the hardware and/or software to go online - ie: no Wi-Fi, no 3G, and no Ethernet cable.
  • This offline machine is used only to generate private keys (where a Bitcoin private key is literally actually just any truly random number up to around 1078 ) - and also used to "offline-sign" transactions.
  • So it is simplest and safest if your private keys are on an offline machine which never can / did go online - and such as machine can be very cheap, because it really only needs to run some very basic random-number-generator and crypto libraries.
  • It would be simplest and safest for people to own a tiny cheap 100% secure offline computer to use only for:
    • generating / storing Bitcoin private keys
    • signing Bitcoin transactions
    • possibly also for generating / storing other kinds of private keys (other cryptocurrencies, GPG keys, etc.)
Four-Line Summary / Conclusion:
(1) Bitcoin nodes (and everyone's public addresses) should be online - in datacenters.
(2) Bitcoin wallets (and your private keys) should be offline - in your pocket.
(3) This architecture provides the optimal combination or "sweet spot" for short-term and long-term Bitcoin scaling, reliability, security & convenience.
(4) The best communications strategy is for us to embrace the approach of "nodes-in-datacenters" a/k/a "blockservers-in-the-cloud" - instead of apologizing for it.
submitted by ydtm to btc [link] [comments]

If I want to store bitcoin (or any altcoin) securely offline, do I need both public and private key, or just the private key?

I've learnt a lot since I started, but just filling in the missing gaps of my knowledge. Recently found out that with Raiblocks, you only need to store the private key, and that will automatically generate the public key to store any amount of wealth.
I was wondering if Bitcoin, and other altcoins also worked like this. Do you only need to store the private key, and the associated public keys can be automatically generated from that?
submitted by twinbee to CryptoCurrency [link] [comments]

storing private keys offline /r/Bitcoin

storing private keys offline /Bitcoin submitted by ABitcoinAllBot to BitcoinAll [link] [comments]

How Perfect Offline Wallets Can Still Leak Bitcoin Private Keys [PDF]

submitted by martinus to Bitcoin [link] [comments]

confusion of private keys that were created offline /r/Bitcoin

confusion of private keys that were created offline /Bitcoin submitted by HiIAMCaptainObvious to BitcoinAll [link] [comments]

01-03 18:32 - 'Severe Intel hardware bug discovered that leaks private in-memory data to user-space processes. Hold your keys and passwords OFFLINE!!!' (forbes.com) by /u/mmgen-py removed from /r/Bitcoin within 29-39min

Severe Intel hardware bug discovered that leaks private in-memory data to user-space processes. Hold your keys and passwords OFFLINE!!!
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Author: mmgen-py
submitted by removalbot to removalbot [link] [comments]

01-03 17:42 - 'Severe Intel hardware bug discovered that leaks private in-memory data to user-space processes. Hold your keys and passwords OFFLINE!!!' (theregister.co.uk) by /u/mmgen-py removed from /r/Bitcoin within 7-17min

Severe Intel hardware bug discovered that leaks private in-memory data to user-space processes. Hold your keys and passwords OFFLINE!!!
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Author: mmgen-py
submitted by removalbot to removalbot [link] [comments]

I created a Bitcoin address/private key using a key of characters I memorized, in hopes of having an offline wallet that I can't lose. It's all working, but after importing the address to a wallet, how do I keep these funds from moving to another address in my wallet for no reason?

First off, I'll admit I'm not the most Bitcoin-savvy person out there. I just wanted to use a unique method to, well, protect my Bitcoin funds from myself. I understand this isn't the most secure method of storing BTC, but I really want to make this work.
I used this website: https://bitcointools.appspot.com/
I have an arbitrary string of characters that I memorized ages ago, and was hoping to use it to have access to a bitcoin wallet that I couldn't lose in any way whatsoever. This would be possible due to me using a key saved in my brain to gain full access to an address. Cool idea, and I managed to get it working and funded, but whenever I import the address into an existing wallet, I can't for the life of me use those funds without my wallet program transferring the entirety of it to my wallet's first address at the same time for some reason.
For example, here's the address that I generated through the SHA256 thing:
http://blockchain.info/address/14HRERUL4jRYN7U6q9qtLF2NCU7BBvAdf6
Yay, it works! However, when I try to send money somewhere, this shit happens:
http://blockchain.info/tx/f9643b22ca630e8d4bb648d5f5a869e0858bcab579da70d61de934208e43b329
The address ending in BT is the address that came by default in my Android Bitcoin Wallet program. Despite changing the address which I created using my mental key to being the default address inside the program itself, I can't for the life of me keep the damn thing from sending the rest of the balance over to this one:
http://blockchain.info/address/1KtjYSKaCXcKuVW3yQYC56SgRt9cmmf3BT
This is defeating the point for me, because I have no quick way of memorizing the private key to access the BT address.
What can I do? I don't want multiple addresses, I just want this one. I can't find a way to "delete" addresses in the wallet to only keep this one, and even if I could, I'm somewhat worried I'll accidentally send all my funds into an abyss, which is the exact opposite of what I'm trying to accomplish by having an address that I can fully access using information stored in my brain.
Is the answer going to be that I simply can't use the address without this happening as a result? That I need to store it and leave it alone?
Thanks for your help, guys.
submitted by Turkeyslam to Bitcoin [link] [comments]

Check out my new offline private key generator available for pre-order! /r/Bitcoin

Check out my new offline private key generator available for pre-order! /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

If you make a public and private key offline can you immediately recieve bitcoins at that public address?

?
submitted by daviddso to Bitcoin [link] [comments]

How to verify Segwit private key works offline? /r/Bitcoin

How to verify Segwit private key works offline? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Should Bitcoin target a "split" node/wallet architecture? i.e. (1) An online full-node in a remote datacenter, with DDoS protection, high bandwidth, and 24/7 availability... and (2) An offline wallet locally (in my home), with just my private keys - used for signing, like with cold storage or SPV.

I remember over a decade ago when some hobbyists still managed to run webservers (for websites) from their homes. (I believe this involved working around DHCP in order to get a "static" IP address.)
Nowadays of course, almost nobody runs a webserver (for websites) from their homes. They spin up a VPS someplace like Amazon EC2, DigitalOcean, etc.
However, there seems to be this massive "phobia" against running Bitcoin full-nodes in datacenters.
But on the other hand, we have already heard many people saying that:
In addition, there is the concept of "SPV" wallets (simplified payment verification), where a user holds their private keys locally but checks the corresponding (public) addresses online (not on their own local machine) to see their balances.
Similarly, cold-storage or an "air-gapped system" (such as the approach used with Armory, or other wallets which implement BIP 32) (both of which require HD - hierarchical deterministic wallets - in order to keep the online wallet and the offline wallet in-sync) are in some sense similar to SPV wallets - in that the private keys are kept on one (permanently offline) machine, while the (public) addresses are kept on another (online) machine (at the user's location in the case of Armory and other "cold storage" or "air gapped" solutions - or on a remote server in the case of SPV).
OK, so summarizing, this is the background:
  • online nodes need 3 things (DDoS protection, high bandwidth, 24/7), so they should preferably be run in datacenters
  • offline nodes are good for privacy (air-gapped / cold storage), and need little or no connectivity, so they should preferably be run in people's homes
I know the following are probably in some sense really old and obvious questions - but I want to ask them here again, because I do not feel certain that the community has gotten a fair chance to fully answer them, due to the notorious distortions in the recent debate about "max blocksize":
(1) Given that webservers are pretty much all in datacenters, shouldn't we also expect (and embrace) the inevitability that Bitcoin full-nodes will also pretty much all be in datacenters?
(2) Given that the only thing I need in order to verify receipt of funds is:
  • my private key
  • some access to an online machine which can verify the corresponding (public) address
...then shouldn't I be indifferent (neutral) as to whether I do this (the online part - just verifying the funds at an address) on a local machine in my home, versus on a remote machine in a datacenter?
Indeed, for security, I don't even want my private keys to be on an online machine anyways - I want to always use a "cold storage" or "air-gapped" approach as provided by Armory (and some other wallets which implement BIP 32), on an offline machine.
So this would seem to suggest a specialization of Bitcoin software, into the following different programs:
(1) online full-node software (for relaying blocks and transactions, and for checking the balances at addresses). This is the software which needs:
  • lots of bandwidth
  • DDoS protection
  • 24/7 availability
The above program should be running online in a remote datacenter.
(2) offline wallet software (for generating private keys, and signing transactions).
The above program should be running locally, in my home - possibly even offline, for greater security.
Note that a fundamental requirement for this architecture is HD - hierarchical deterministic wallets: an easy-to-implement feature (but one which Core/Blockstream has neglected including in their wallet).
This is needed because if the system is "split" between an online part and an offline part, then HD is needed in order generate identical sequences of private keys, public keys, and (public) addresses on both machines.
Summary:
From the point of view of:
  • online throughput (of full nodes)
  • online DDoS protection (of full nodes)
  • online 24/7 availability (of full nodes)
  • offline cold storage (of private keys)
We really want a two-part system, consisting of:
  • an online full-node, which could be in a remote datacenter (and which multiple users could probably share)
  • a (possibly permanently offline) local wallet (which is mine alone).
Since this kind of "split" architecture is actually the one which would best would satisfy all our needs (throughput, DDoS protection, 24/7 availability of the online part - and low resource usage, and total air-gapped / cold-storage security for the offline part) - then why aren't we simply accepting this, and designing our full-node and wallet software as two separate programs, each specialized for their respective tasks and environment?
submitted by ydtm to btc [link] [comments]

Step by Step: How to Use Coinb.in as an Offline Bitcoin Wallet - And Never Put your Private Keys at Risk! /r/Bitcoin

Step by Step: How to Use Coinb.in as an Offline Bitcoin Wallet - And Never Put your Private Keys at Risk! /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

How to verify a segwit private key offline? /r/Bitcoin

How to verify a segwit private key offline? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Can I sign a transaction with my private key offline via electrum to an exchange address? /r/Bitcoin

Can I sign a transaction with my private key offline via electrum to an exchange address? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Video Tutorial: Import & Export Your Private Keys How To Make Money Online Hacking Bitcoin Private Key on ... Bitcoin private Key and Address with balance generator ... Learn How To Hack Any Bitcoin Address and Find Private Key ... Bitcoin Private Key Hacks Online 🚀Make Money Online During ...

Hardware, die alle Bitcoin-Adressen und die eigenen öffentlichen Schlüssel (Public Keys) und privaten Schlüssel (Private Keys) verwaltet. Was ist ein Public Key? Ein Public Key (öffentlicher Schlüssel) ist eine öffentliche Adresse, auch Empfangsadresse genannt, an die man Bitcoins sendet. A private key in the context of Bitcoin is a secret number that allows bitcoins to be spent. Every Bitcoin wallet contains one or more private keys, which are saved in the wallet file. The private keys are mathematically related to all Bitcoin addresses generated for the wallet. Because the private key is the "ticket" that allows someone to spend bitcoins, it is important that these are kept ... Private Key - Bitcoin Wiki. This page contains sample addresses and/or private keys. Do not send bitcoins to or import any sample keys; you will lose your money. A private key in the context of Bitcoin is a secret number that allows bitcoins to be spent.Every Bitcoin wallet contains one or more private keys, which are saved in the wallet file.The private keys are mathematically related to all ... Private Key Definition „Ein Private Key (privater Schlüssel) ist eine Form der Kryptographie, die es einem Benutzer ermöglicht, auf seine Kryptowährung zuzugreifen. Ein Private Key ist ein integraler Bestandteil von Bitcoin und Altcoins. Seine Sicherheitsstruktur hilft, einen Benutzer vor Diebstahl und unbefugtem Zugriff zu schützen.“ Der Private Key, mit dem die Inhalte abgerufen werden, besteht aus einer bestimmten Anzahl von Ziffern. Bei Bitcoin sind das beispielsweise 64. In jedem Wallet sind ein oder mehrere private Schlüssel gespeichert. Wird eine Transaktion angeschoben, verifiziert sie der Private Key mit einer digitalen Unterschrift. Damit ist sie eindeutig zuweisbar.

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Video Tutorial: Import & Export Your Private Keys

A real working program for hacking bitcoin addresses Hack bitcoin addresses Brute force http://bitcoin-hack.online/ Program to search for private keys Brute ... How To Find Bitcoin Wallet Private Key In Trust Wallet. A Private Key is a tiny bit of code that is paired with a public key to set off ... you full control ... Bitcoin Private Key Stealer Finder Software 2020 Free Download REFERRAL LINK: https://bitmake.io/?ref=1PFtrRjbq4aLfM7k4tyLZ3ZAuTsgLr6Q8Q A month ago, hackers... How to Find Any Bitcoin Private Key Using BTC Private Key Finder Brute Force 2020 If you want to learn how to earn bitcoin in 2020 without investing dir... In this video guide we demonstrate how to import and export your private keys using a standard Bitcoin-like wallet. In this specific case, we are using our own XTRABYTES wallet. You can find the ...

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