Saturday, October 19, 2019

The custodial middle ground / trade-off

Lets face it, storing bitcoins safely is still a pain for the average Joe and this still presents a hurdle for mainstream adoption. Until UI/UX improves to a level that all but eliminates this hurdle we will still contend with this issue, if it ever will. The average person just wants to log in with a username and password and see money with very little or no risk of it being gone (in the event that it is gone, there is some insurance). Custodial wallets have the risk of the providers just disappearing, seized or getting hacked. Non-custodial wallets means the owner has to think up ways to store the mnemonic seed; paper, metal, stone, encrypted file, brain?? Stress!!

I have a solution; still vague in my mind as I do not currently have the time or technical ability to pull this off. A second layer network built on top of bitcoin, lets call it Hunter. This will basically be a backup for seeds where seeds will be encrypted using a user's password and maybe another easily derived number and the cipher will be divided up and stored on other nodes on the network. The nodes to be stored on will be derived pseudo-randomly from the password (and the number) therefore each node will either not have a user's encrypted seed or will just have a very small part of the encrypted seed stored. The pseudo-random algorithm will give a different set of nodes if the number of nodes in the network changes from the time the user stored the encrypted seed.

Now if the user loses or forgets the seed, the user can get it back by scouring the network, of course, by paying other nodes a small amount of bitcoin to retrieve the portion of the encrypted seed (hunting). The trick here is to ensure that the pseudo-random sequence makes it more probable for a user who knows the password to contact far less nodes than an attacker who is engaging in a system wide hunt (brute forcing) thus paying far less bitcoin to nodes to retrieve the seed than the attacker.

Problems

  • Password re-use
  • Nodes can lie they don't have the data requested even though they do ensuring you come back and pay more
  • Nodes can provide false data ensuring you come back and pay more
  • An attacker can infect all nodes on the network wiping out data on all nodes
  • A well financially resourced entity can buy out all the nodes

There are other problems but I cannot remember them now. I assume employing RAID and smart contracts will minimize or solve some of these problems.

Also if someone will be kind enough to drop a formula to calculate the security of your backup on this network based on the number of nodes in it.

RAID https://en.wikipedia.org/wiki/RAID


/r/Monero Weekly Discussion – October 19, 2019 - Use this thread for general chatter, basic questions, and if you're new to Monero

Index

  1. General questions
  2. Wallet: CLI & GUI
  3. Wallet: Ledger
  4. Nodes

1. General questions

Where can I download the Monero wallet?

There are multiple Monero wallets for a wide range of devices at your disposal. Check the table below for details and download links. Attention: for extra security make sure to calculate and compare the checksum of your downloaded files when possible.

Please note the following usage of the labels:

⚠️ - Relatively new and/or beta. Use wallet with caution.

☢️ - Closed source.


Desktop wallets

Wallet Device Description Download link
"Official" GUI / CLI Windows, macOS, Linux Default implementation maintained by the core team. Use this wallet to run a full node and obtain maximum privacy. Integrates with hardware wallets. Current version: 0.14.1.0 / 0.14.0.2. GetMonero.org
MyMonero Windows, macOS, Linux Lightweight wallet -- you don't need to download the blockchain and run a node. MyMonero was developed with the assistance of the core team. It also has web-based and iOS versions. MyMonero.com
Exodus Windows, macOS, Linux ⚠️ / Multi-asset wallet. Exodus.io
ZelCore Windows, macOS, Linux ⚠️ / Multi-asset wallet. It also has Android and iOS versions. Zeltrez.io
Guarda Windows, macOS, Linux ⚠️ ☢️ / Multi-asset wallet. Guarda.co

Mobile wallets

Wallet Device Description Download link
Monerujo Android Integrates with Ledger (hardware wallet). Website: https://www.monerujo.io/. Google Play / F-Droid / GitHub
MyMonero iOS Website: https://mymonero.com/ App Store
Cake Wallet iOS Website: https://cakewallet.io/ App Store
X Wallet iOS Website: https://xwallet.tech/ App Store
Edge Wallet Android / iOS Multi-asset wallet. Website: https://edge.app/ Google Play / App Store
ZelCore Android / iOS ⚠️ / Multi-asset wallet. Website: https://zelcore.io/ Google Play / App Store
Coinomi Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://www.coinomi.com/ Google Play / App Store
Moxi / Guarda Android / iOS ⚠️ ☢️ / Multi-asset wallet. Website: https://guarda.co/ Google Play / App Store
Exa Wallet Android / iOS ⚠️ Website: https://exan.tech/ Google Play / App Store
Wookey Wallet Android / iOS ⚠️ Website: https://wallet.wookey.io/ Google Play / F-Droid / App Store

Web-based wallets

Wallet Description Link
MyMonero Web version of the MyMonero wallet. Web
XMRWallet Web wallet with TOR support. Web / Onion URL
Guarda Multi-asset wallet. Web

How long does it take for my balance to unlock?

Your balance is unlocked after 10 confirmations (which means 10 mined blocks). A block is mined approximately every two minutes on the Monero network, so that would be around 20 minutes.

How can I prove that I sent a payment?

The fastest and most direct way is by using the ExploreMonero blockchain explorer. You will need to recover the transaction key from your wallet (complete guide for GUI / CLI).

How do I buy Monero (XMR) with Bitcoin (BTC)?

There are dozens of exchanges that trade Monero against Bitcoin and other cryptocurrencies. Check out the list on CoinMarketCap and choose the option that suits you best.

How do I buy Monero (XMR) with fiat?

  • Kraken (USD and EUR): old-school, decent exchange. They might require your documents for verification and approval of your account.
  • LocalMonero: peer-to-peer exchange. They have pretty much everything as a payment method and they support hundreds of fiat options.

How can I quickly exchange my Monero (XMR) for Bitcoin (BTC)?

There are multiple ways to exchange your Monero for Bitcoin, but first of all, I'd like to remind you that if you really want to do your part for Monero, one of the simplest ways is to get in touch with your merchant/service provider and request for it to accept Monero directly as payment. Ask the service provider to visit the official website and our communication channels if he or she needs help with system integration.

That being said, the community has been recommending two services in particular, XMR.TO and MorphToken. These services are only recommendations and are operated by entities outside the control of the Monero Project. Be diligent.

How do I mine Monero? And other mining questions.

The correct place to ask questions and discuss the Monero mining scene is in the dedicated subreddit r/MoneroMining. That being said, you can find a list of pools and available mining software in the GetMonero.org website.


2. Wallet: CLI & GUI

Why I can't see my balance? Where is my XMR?

Before any action there are two things to check:

  1. Are you using the latest available version of the wallet? A new version is released roughly every 6 months, so make sure you're using the current release (compare the release on GetMonero.org with your wallet's version on Settings, under Debug info).
  2. Is your wallet fully synchronized? If it isn't, wait the sync to complete.

Because Monero is different from Bitcoin, wallet synchronization is not instant. The software needs to synchronize the blockchain and use your private keys to identify your transactions. Check in the lower left corner (GUI) if the wallet is synchronized.

You can't send transactions and your balance might be wrong or unavailable if the wallet is not synced with the network. So please wait.

If this is not a sufficient answer for your case and you're looking for more information, please see this answer on StackExchange.

How do I upgrade my wallet to the newest version?

This question is beautifully answered on StackExchange.

Why does it take so long to sync the wallet [for the first time]?

You have decided to use Monero's wallet and run a local node. Congratulations! You have chosen the safest and most secure option for your privacy, but unfortunately this has an initial cost. The first reason for the slowness is that you will need to download the entire blockchain, which is considerably heavy (+70 GB) and constantly growing. There are technologies being implemented in Monero to slow this growth, however it is inevitable to make this initial download to run a full node. Consider syncing to a device that has an SSD instead of an HDD, as this greatly impacts the speed of synchronization.

Now that the blockchain is on your computer, the next time you run the wallet you only need to download new blocks, which should take seconds or minutes (depending on how often you use the wallet).

I don't want to download the blockchain, how can I skip that?

The way to skip downloading the blockchain is connecting your wallet to a public remote node. You can follow this guide on how to set it up. You can find a list of public remote nodes on MoneroWorld.

Be advised that when using a public remote node you lose some of your privacy. A public remote node is able to identify your IP and opens up a range for certain attacks that further diminish your privacy. A remote node can't see your balance and it can't spend your XMR.

How do I restore my wallet from the mnemonic seed or from the keys?

To restore your wallet with the 25 word mnemonic seed, please see this guide.

To restore your wallet with your keys, please see this guide.


3. Wallet: Ledger

How do I generate a Ledger Monero Wallet with the GUI or CLI?

This question is beautifully answered on StackExchange. Check this page for the GUI instructions, and this page for the CLI instructions.


4. Nodes

How can my local node become a public remote node?

If you want to support other Monero users by making your node public, you can follow the instructions on MoneroWorld, under the section "How To Include Your Node On Moneroworld".

How can I connect my node via Tor?

This question is beautifully answered on StackExchange.



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https://i.redd.it/x1nhscozsgt31.png

In the last few years, Bitcoin, Ethereum and other major cryptocurrencies have taken the world by storm. Crypto enthusiasts and users have been attracted to this new revolutionary technology and have since formed sizeable, vibrant and growing groups across platforms like Telegram. These groups embrace members from all walks of life, no matter their profession or level of tech savviness.

Telegram messenger is a place that has always accommodated diversity, which is why the crypto community is truly flourishing on the platform. Old and new projects are taking to Telegram to provide news of the latest innovations to their users, as well as share deep insights in the market with the goal to build up the blockchain community together.

It is for this reason that Atomars Exchange has taken to Telegram and announced its new official Telegram Channel, which provides its users and customers with the latest news, updates and information about Atomars Exchange and other subjects in the world of cryptocurrency. Click the link below to join the Channel.

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Telegram Download:

IOS: https://telegram.org/dl/ios

Android: https://telegram.org/dl/android

Windows Phone: https://telegram.org/dl/wp

Atomars Telegram Channel: https://t.me/AtomarsOfficial

Our Rules

Of course, to keep the house clean for all, we enforce guidelines within our group.

  1. Spamming is not allowed and members can be kicked out of the group for this.
  2. Although the channel provides support services, Atomars staff however do not contact members of Telegram group through direct message. We will not ask for funds, private keys, wallet addresses or Atomars Exchange account information. Whoever does this to you on our behalf is trying to scam you. Ensure you familiarize yourself with community guidelines.

We are excited about our official Atomars Telegram Channel and we cannot wait to see where the discussion with our users takes us! Join us at https://t.me/AtomarsOfficial

Happy chatting!

Find out more about Atomars on our website: https://atomars.com

Reach us on our other channels:

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Twitter: https://twitter.com/AtomarsExchange

Instagram: https://www.instagram.com/atomarsexchange/

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Brave Browser for Mobile: Your privacy and security are verified

A new way to surf the Internet can also turn it over. Brave Brower - from co-founder of Firefox Brendan Aich - offers cross-platform compatibility, speed, security, tabs without distractions and more.

Why use Brave? Brave Browser has unique systems to protect your privacy, reduce download time and generate revenue for users by displaying content from Brave's own secure ad network. Once its network collapses, the Eich team will share revenue between users, publishers and the ad network using the following model: users get 10-15%, which they can convert into bitcoins and send to their favorite websites. Publishers get 55%. The brave and his advertising network gets 15% each.

So how does Brave on Mobile cope with its competitors such as Chrome, Firefox, Opera and Puffin? This article discusses Brave's features, performance, security and privacy.

Where did Brave come from?

After purchasing Chris Lacy's Link Bubble Browser (Android), the Eich team discovered the source code and began rebuilding it, along with a completely different version for the PC.

We wrote about Link Bubble

before. Although Link Bubble hasn't been stable on any of my mobile devices, Brave iteration ensures stable performance. It is currently one of my favorite apps. My favorite use: it works great for opening tabs when reading RSS

(FeedMe is the best RSS reader for offline use on Android

). But there are many other applications, such as opening web links in an email, spreadsheet or PDF.

Platform availability

Brave Browser for Android, iOS, Linux, Macintosh and Windows (Windows Vista or later). It is also fully open source. Here are the download links:

Download: Android

Download: IOS

Brave is also available on the desktop (we wrote about Brave on the desktop

). For desktop Linux users, you need to compile the source code yourself. It seems that there are no .DEB files available for installation.

Features of a brave browser

The mobile application differs significantly from the desktop version. Instead of opening links in the foreground, Brave opens a Facebook-style chat roomthat looks like a bubble.

Clicking on it opens the browser. Pressing, holding and sliding it to the left bubble will share information with Google+. Clicking on the bubble to the right will open the content using any application you want. Sliding it to the bubble marked "X" removes the page. Users can configure any of these settings, so if you prefer to use Twitter or Facebook, all you have to do is install the default application in the Brave Settings menu.

Read also: Final Firefox 3.5 Acceleration Guide

Bubble up

Some of its competitors in the floating bubble browser market include Javelin Browser and Flynx. Two similar browsers are Firefox and Snap Browser [no longer available]. Both offer background loading tabs, known as queuing tabs

This feature should be enabled in Firefox, and Snap Browser is no longer being developed (although the application is still available).

Some other features include themes and incognito mode. Customizable Brave themes, including night mode (which is great for AMOLED screens)

). For those concerned about privacy, users may choose to activate incognito mode, which completely prevents cookies from being stored.

On the other hand, Brave does not offer image compression - and it is the only browser that does not offer this option. For people with limited budgets, you can use Chrome, Firefox (with a compression extension), Opera or Puffin.

Octane 2.0: JavaScript

Google has developed the Octane test to speed up JavaScript development. The test is fully focused on running JavaScript. Theoretically, Chrome should outperform its competitors in this field.

https://i.redd.it/acav3foffgt31.png

In fact, Puffin dominates the performance of JavaScript with incredible profits. Brave's performance drops dramatically at the bottom. Although all browsers look bad compared to Puffin.

RoboHornet: Multispectrum

RoboHornet tests browsers using a set of tests, from frame rendering to animated GIF files. It generates a "normalized" score, where 100 is average. Any results above 100 mean better than average performance. Remember that mobile browsers run on slower hardware, so their results should be below average.

I can't explain it, but Puffin's taking the competition away. Other browsers are roughly the same in performance.

Bmark: HTML5

Bmark measures the ability of a browser to display HTML5 3D content. It is also a pretty good indicator of browser performance in HTML5.

https://i.redd.it/k03y85whfgt31.png

Chrome wins by a long shot, although Opera and Puffin offer decent numbers. Brave and Firefox raise the rear.

Test MakeUseOf.com

It's a real test. I simply download MakeUseOf.com three times in each browser and use the stopwatch to determine how long the site should take to load. The best result is used. MakeUseOf uses a lot of JavaScript, so (theoretically) Puffin should load the site faster than the rest. The brave Browser should be the last to arrive dead.

As the numbers show, I was half right. Puffin was the leader in all browsers. However, Brave was in second place, which is contrary to expectations. The results show that Brave's advertising replacement strategy accelerates the work with the browser, as a large amount of download time requires a large amount of JavaScript.

https://i.redd.it/6qfekl5nfgt31.png

Read also: Faster and better with mouse gestures

Is Brave Browser safe?

I checked the security and privacy of all browsers using two tools: Panopticlick and Perfect Privacy. For those who are interested, we have compiled a list of tools that are useful for finding security vulnerabilities

Brave offers adequate, albeit problematic, user privacy. On the one hand, this is tantamount to Opera and Chrome in preventing unethical user tracking policies. But it is vulnerable to mask removal even when combined with a virtual proxy network (VPN).

Cookie tracking: Brave stops certain types of unethical cookie tracking

All but one of the browsers tested also stops tracking users. The dead end is the only one who fails.

Invisible trackingAdvertisers can track users if they open their emails through a so-called "invisible tracker". Brave Browser passes this test, which Puffin and Chrome fail. Opera and Firefox are also tested.

Third parties who respect "Don't Track": Brave stops cookies from companies that adhere to ethical standards. Puffin and Firefox (Firefox added DoNotTrack last year) have the ability to enable cookies from the Do Not Track list. The rest (to the best of my knowledge) is not.

Fingerprints in the browser: All browsers do not pass a fingerprint check on the browser. Fingerprints are also the least reliable method of identifying users, although they should apply to all Internet users.

https://i.redd.it/x5oei75qfgt31.png

Brave Panopticlick browser results

https://i.redd.it/3z6w9vvrfgt31.png

IP WebRTC leak: WebRTC

Vulnerability of leakage is a serious privacy issue affecting most browsers except Firefox (use the Happy Bonobo extension if you are a Firefox user). Brave is exposed to leaks. Even most VPNs do not protect against this. If you don't know what a VPN is

Think about reading about the best VPN services around. I recommend CryptoStorm, although Private Internet Access (PIA) is also a good (and inexpensive) choice.

What's the best mobile browser?

It depends on what you need. For those looking for a browser that opens tabs quickly, it will be difficult to find a great alternative to Brave. If you need to compress images to save mobile data, all other browsers offer the best option. If you need the speed of Brave in the real world, the speed is good. In terms of privacy, Brave is the best.



Localbitcoins Clone

Global distributed (P2P) crypto tradeLocalBitcoins Clone will before long become directed by the Financial Supervisory Authority of Finland, as the firm declared on its blog on March 25.

Helsinki-based LocalBitcoins Clone composed that the Finnish Parliament endorsed new enactment that will give a lawful status to digital money resources on March 13, 2019.

The authority has passed a proposition for another Act on Virtual Currency Service Providers that is relied upon to come into power in November 2019.

The parliament likewise decided in favor of a change to the Act on Detecting and Preventing Money Laundering and Terrorist Financing that will bring all crypto-related administrations, for example, wallet suppliers and trades under Anti-Money Laundering (AML) laws.

As indicated by LocalBitcoins, the reception of the demonstrations will add to open acknowledgment of crypto by exhibiting significant digital currency Bitcoin (BTC) as a reasonable and genuine money related system.

Alongside the administrative declaration, LocalBitcoins likewise expressed that it is creating apparatuses to build consistence with controllers.

On March 18,LocalBitcoins Clone propelled another record enrollment process, and is presently taking a shot at an increasingly proficient and safe character check procedure. The organization noticed that corporate records will experience a different check process.

Already, Cointelegraph announced that a crypto trade and wallet administration in Finland was encountering issues with neighborhood banks that wouldn’t work with crypto-related organizations. In particular, Prasos stage turned into a subject of worries among the banks, with in any event four banks declining to manage the substance.

Not long ago, Cointelegraph likewise investigated a hack assault that prompted a phishingLocalBitcoins clone site connection being posted on the authority LocalBitcoins discussion. Thus, the supposed aggressors purportedly figured out how to take around $28,000 worth of Bitcoin at the hour of the report.