Bitcoin’s SHA-256 Algorithm Gives You More Guarantees Than ...

mining sha256-based currencies

Advice and discussion on mining sha256 currencies. Although Bitcoin is a sha256 currency, you'll probably find your answer in its dedicated subreddit, /bitcoinmining
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AsicCoin ASC

AsicCoin ASC is A SHA-256 crypto-currency, is based on Bitcoin version 0.8, with super random blocks. It is a coin for ASICs!
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Litecoin Cash

Litecoin Cash (LCC) is a fork of Litecoin itself utilizing an SHA-256 hashing algorithm. While the initial goal was to focus on bringing back SHA-256, along the way we created "Hive Mining," an agent-based system allowing everyday users to participate in securing and hashing the network to earn real LCC rewards. Be sure to visit our website @ https://litecoinca.sh for more information and join us on DISCORD to speak with the team and get free LCC rains just for chatting and being active!
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Genesis Mining:"We are more than happy to announce that Bitcoin Cash is now available as a Native Mining option for all Bitcoin (Sha256) contracts!"

Genesis Mining: submitted by Egon_1 to btc [link] [comments]

ABCs lead developer Deadalnix is talking about changing the POW. What happens if we break away from Bitcoins Sha256? Is it good or bad. Someone with please explain thanks /r/btc

ABCs lead developer Deadalnix is talking about changing the POW. What happens if we break away from Bitcoins Sha256? Is it good or bad. Someone with please explain thanks /btc submitted by ABitcoinAllBot to BitcoinAll [link] [comments]

ABCs lead developer Deadalnix is talking about changing the POW. What happens if we break away from Bitcoins Sha256? Is it good or bad. Someone with please explain thanks /r/btc

ABCs lead developer Deadalnix is talking about changing the POW. What happens if we break away from Bitcoins Sha256? Is it good or bad. Someone with please explain thanks /btc submitted by cryptoallbot to cryptoall [link] [comments]

Antminer S5 1150 г 28NM BM1384 Bitcoin SHA256 ASIC miner Bitcoin биткоин...

Antminer S5 1150 г 28NM BM1384 Bitcoin SHA256 ASIC miner Bitcoin биткоин... submitted by SuspiciousDiscussion to u/SuspiciousDiscussion [link] [comments]

Genesis Mining:"We are more than happy to announce that Bitcoin Cash is now available as a Native Mining option for all Bitcoin (Sha256) contracts!"

Genesis Mining: submitted by HiIAMCaptainObvious to BitcoinAll [link] [comments]

Why bitcoin's sha256 PoW algorithm makes it the most resistant coin thanks with ASICs

Why bitcoin's sha256 PoW algorithm makes it the most resistant coin thanks with ASICs submitted by unitedstatian to btc [link] [comments]

[WTS] GekkoScience 2PAC BM1384 USB Bitcoin SHA256 15GH/s Miner - $70 BTC

Selling GekkoScience 2PAC BM1384 USB Bitcoin SHA256 15GH/s Miner.
Here is my eBay listing: http://www.ebay.com/itm/332367652081
I'm giving reddit users a $10 discount - free shipping to continental USA. Message me here for sales.
submitted by nickrac to BitMarket [link] [comments]

Is one "GekkoScience 2PAC BM1384 USB Bitcoin SHA256 15GH Miner" better than one gtx 960? /r/BitcoinMining

Is one submitted by BitcoinAllBot to BitcoinAll [link] [comments]

Genesis Mining Stock Return Bitcoin SHA256 Services

submitted by WebInserzionista to u/WebInserzionista [link] [comments]

Genesis Mining anuncia que ha habilitado a BCH como opción de minería nativa para todos los contratos de Bitcoin (SHA256)

Genesis Mining anuncia que ha habilitado a BCH como opción de minería nativa para todos los contratos de Bitcoin (SHA256) submitted by SomosPolvo to Bitcoin_espanol [link] [comments]

Pool similar to Wafflepool for Bitcoin/SHA256 mining?

Hello. I'm new to mining. I just got a 5-chip Gridseed ASIC a week ago. After bouncing around pools, I have settled on Wafflepool as my Scrypt pool of choice. I love the stat reporting and weekly BTC payout. By Tuesday, I should have the power adapter needed to run my Gridseed ASIC in dual mode. This does Scrypt and SHA256 hashing at the same time. I considered using Tompool/Tomcoin to do all my mining and get BTC payout, but the lack of stat reporting was no fun for me. I've looked at Eligius. It sounded great until I saw the minimum payout of 167mBTC. That would take a lot of patience that I don't have.
Could anyone please recommend a SHA256 pool that shares some of the awesomeness of Wafflepool?
submitted by WhovianK9 to wafflepool [link] [comments]

How are non-BCH SHA256 miners excluded from the Bitcoin Mining Parliament?

How are non-BCH SHA256 miners excluded from the Bitcoin Mining Parliament? submitted by georgedonnelly to btc [link] [comments]

hoje KUANGCHENG! 85 95% novo usado antminer s9 14 t/s bitcoin bch sha256 mineiro asic mineiro 16nm - Dicas sobre Bitcoin - mais rápido rápido

hoje KUANGCHENG! 85 95% novo usado antminer s9 14 t/s bitcoin bch sha256 mineiro asic mineiro 16nm - Dicas sobre Bitcoin - mais rápido rápido submitted by infocryptocoins to CertificadoDigital [link] [comments]

sha256 - Issues with private key?? (or not -looking for answer) (x-post from /r/Bitcoin)

submitted by ASICmachine to CryptoCurrencyClassic [link] [comments]

hoje Antminer t17 42t asic miner sha256 bitcoin bch btc mining bitmain t17 com psu melhor que xiaom - Dicas sobre Bitcoin - Ganhe dinheiro

hoje Antminer t17 42t asic miner sha256 bitcoin bch btc mining bitmain t17 com psu melhor que xiaom - Dicas sobre Bitcoin - Ganhe dinheiro submitted by infocryptocoins to CertificadoDigital [link] [comments]

Litecoin

Recently, since Litecoin as been running, we have seen alot of "Litecoin is a useless shitcoin" fud. I'm gonna try to show why Litecoin is useful:
  1. Security: Litecoin is the second most secure Crypto behind Bitcoin. Why is this the case? High levels of mining Decentralization and Scrypt algorithm. Having Litecoin run on Scrypt for its hashing algorithm is the ultimate reason why I believe it is the second most secure behind Bitcoin. The way I understand it, having a different algorithm than Bitcoin (SHA256) prevents bitcoin miners from attacking Litecoin. Not only this, but Litecoin has the most hash power against other Scrypt coins. This makes it very very difficult to attack Litecoin. This cannot be said for other Proof of Work coins outside of Bitcoin.
  2. Speed/Fees: As I write this, on average transaction fees for a Litecoin transaction is 4 cents and about 2.5 - 5 minutes for a transaction to be considered confirmed. Extremely cheap and fast, it can be shown best by the most recent $99 million transaction with only a $0.40 fee and 2.5 min confirmation time.
  3. Lightning Network and Bitcoin Compatibility: With the invention of LN, Litecoin fees and transaction speeds can be reduced even further. Much of the criticism of Litecoin is it becomes useless since Bitcoin will use LN to increase speed and lower fees. This argument does not mention that Litecoin will also benefit from LN as well. Naturally, Litecoin is the cheapest and fastest on ramp to Lightning Network. What's really cool about the LN though is the compatibility with the two coins. With atomic swaps, you can swap Bitcoin into Litecoin and make a payments much quicker than with Bitcoin alone. The way I see it , Bitcoin is your savings account and Litecoin is a spending account. This is not to say Litecoin is not a good store of value, but Bitcoin is more scarce and more secure making it a stronger store of value to Litecoin, which is more suited for making payments.
  4. The Lindy Effect/Network Effect: Per Wikipedia, "The Lindy Effect is a theory that the future life expectancy of some non-perishable things like a technology or an idea is proportional to their current age, so that every additional period of survival implies a longer remaining life expectancy." This applies to both Litecoin and Bitcoin. They are the two oldest coins, genisis blocks created in 2011 and 2009 respectively. Both have survived the test of time creating more confidence that it will continue to survive into the future. Per Wikipedia, "A network effect (also called network externality or demand-side economies of scale) is the effect described in economics and business that an additional user of a good or service has on the valueof that product to others. When a network effect is present, the value of a product or service increases according to the number of others using it." What this means is as the user base/community continues to grow, it becomes easier for it grow further. Litecoin has grown a massive community over its 7 and half year existence staying a top crypto since the beginning, making its future growth easier.
In Summary: Litecoin is the second most secure, second oldest cryptocurrency designed for payments and to complement Bitcoin, not compete with it. The speed to security ratio stands out from other PoW coins and is only second to Bitcoin. The longevity and strong community of Liteocin increases the likelihood it will survive into the future and with the use of Lightning Network, Litecoin can complement Bitcoin even further. Obviously there are other properties that make Litecoin a strong cryptocurrency, but these in my opinion are the more important ones.
Let me know if I stated anything factually inaccurate or have varying opinions, thanks !
submitted by iDONATELLO to litecoin [link] [comments]

How are non-BCH SHA256 miners excluded from the Bitcoin Mining Parliament?

How are non-BCH SHA256 miners excluded from the Bitcoin Mining Parliament? submitted by georgedonnelly to Bitcoincash [link] [comments]

hoje BTC mineiro Asic Bitcoin mineiro AntMiner S17 + 73T SHA256 melhor do que S9 S17e T17e S19 K5 M - Dicas sobre Bitcoin - mais rápido dinheiro

hoje BTC mineiro Asic Bitcoin mineiro AntMiner S17 + 73T SHA256 melhor do que S9 S17e T17e S19 K5 M - Dicas sobre Bitcoin - mais rápido dinheiro submitted by infocryptocoins to CertificadoDigital [link] [comments]

The real reason Bitcoin is skyrocketing and why CME is launching Bitcoin futures on Dec 18, 2017. Someone is close to building a real quantum computer.

We will soon see someone become the fastest trillionaire in history. Why you ask? Because Quantum Computing can defeat Bitcoin's SHA256 blockchains. http://www.newsweek.com/quantum-computers-kill-bitcoin-cryptocurrency-509053
The reason we place so much trust in Bitcoins is because right now, it would take a typical PC 3.17*1064 years to brute force a wallet. This pretty much translates into never. But quantum computing changes the game. Soon, due to quantum computers, 256bit encryption schemes will become easily crackable.
Enter, the CME Bitcoin futures.
For those who don't know how futures work, it's just a contract to purchase something at an agreed price at an agreed date. Say you own 1 bitcoin. I go to you and say, I'll buy that bitcoin off of you in 1 month for $15K. If you think bitcoins will be priced less than $15k after a month, then you would agree to the contract with me, right? So we make the deal. If bitcoins are worth $10,000 next month, I'm out $5,000 because I still have to pay you $15,000 for the bitcoin. On the other hand, if bitcoins are worth $20,000, you lose $5,000. Because you still have to sell me that bitcoin for $15,000. Fair enough?
Okay, now here's the part that gets tricky. The thing is, YOU don't have to actually have a bitcoin to make this contract with me. So what would that look like? Say you agree to sell me 1 bitcoin in 1 month at $15,000. Let's say the price of bitcoins at that date is $10,000. You just made $5k in profit. Why? Because you just have to go on the web, buy a bitcoin at $10k and sell it to me for $15k. Bam. $5K profit. On the other hand, say the current market price of bitcoins are $20k. Well, now you are out $5,000. You have to go to the web and buy a bitcoin for $20k and sell it to me for $15k. Loss of $5,000. Congratulations. You now know what "shorting the futures market" means. It's simply selling something you don't own in the hopes that prices will be cheaper when you actually have to deliver.
Alright, now we know how futures work. So what's this got to do with the real bitcoin market?
We've all seen the dramatic rise in the value of bitcoin this year. It's astronomical. Why is this happening? There are literally 100 reasons people will give you for why this is happening. And the truth is, all of them are plausible. But here's what I think. I think someone, or some govt, is driving up prices for a specific reason. To short the bitcoin market using futures.
What makes bitcoins secure? What makes your wallet that you have on your harddrive or USB drive secure? SHA256 bit encryption. The specifics of this encryption is beyond the scope of this post but suffice to say that it would take a long ass time to try to bruteforce guess the password. What would happen if that password could be broken in a matter of week? Simple. Every blockchain currency, as well as all passwords you use, will become crackable. Now, most servers, such as your bank's or your business, have a safeguard against this. They only allow something like 5 attempts to be made before they let you try again. But what about bitcoins? Umm,.... nope. You can bruteforce attack bitcoin wallets as much as you'd like simply because bitcoin wallets don't exist on your computer. It exists in the ledger which everyone has access to. You only have the password that allows you access to that particular entry on the ledger that proves that you have such and such amount of bitcoins.
So, if you develop a computer that can crack SHA256 encryption in a matter of weeks, how would you use that to make money? Simple. Short the hell out of bitcoin futures. Then release the news that you have a computer that's able to crack SHA256. Bam. The value of bitcoin goes to ZERO. No, I'm not exaggerating. The value will literally go to zero. You just made more money than anyone in history in the shortest amount of time.
Now, this isn't all speculation. You can prove me wrong by observing the price of the CME futures over time once it starts trading. Selling large amounts of futures will drive the price of the futures down and they will trade below market price (current price). So, even tho 90% of the people think the price of Bitcoins will go up, it could trade at prices lower than the current market price. This will mean that there is a huge seller of this futures. It will prove my point.
However, this is not what's going to happen. The futures price will trade at a significant premium (meaning higher than current market prices). Why? Because they're gonna drive this sucker to the max. They're gonna make it go all the way up to $100k while the Quantum Computer is finalized. Then, they will unleash the greatest trade ever known to man. A trade that makes Soros' shorting of the GBP look like child play.
submitted by psy_raven to conspiracy [link] [comments]

What We Need to Know about Proof of Work (PoW)

We've had a lot of discussion of PoW and ASIC-resistance over the past couple months. I wanted to consolidate it all into one place for easier review.
The CryptoNote developers explicitly talked about this in the CryptoNote white paper. (In short, it's bad for network security if cheap ASICs exist that are more powerful than GPUs and high end CPUs.) Writing in 2013, it was already obvious that Bitcoin's SHA256 PoW was broken. They designed CryptoNight to address shortcomings in Bitcoin's PoW algorithm but unfortunately, as time has revealed, their analysis of why Bitcoin's PoW is weak and what makes a good PoW algorithm fell short.
The fundamental flaw that these guys all overlooked is that Proof of Work involves two distinct elements and both Bitcoin and CryptoNote tried to address both requirements with a single algorithm. I.e., there is the actual work that must be done, and there is the proof that the work was performed. Both Bitcoin and CryptoNote used cryptographic hashes to address both requirements, but cryptohashes are only good for proof - they're used in digital signatures to verify that some piece of data is authentic. But that's all they're good for.
Cryptographic hashes are intentionally designed to be efficient to implement and fast to execute. They're designed to be lightweight and high throughput. But the Work you need to secure a network must be hard. Cryptographic hashes are trivially easy to implement in hardware because they use a simple set of operations, sequenced in a straightforward order. They're the ideal algorithms for ASIC implementation.
People overlook this aspect of hardness all the time. They think "Bitcoin is secured by trillions of hashes/sec, so of course it's secure" - but that's not automatically true. Work is what secures the network, and that means energy - electrical energy, in this case. The hash rate is only a proxy for work, and it's a poor one at best. E.g. if you have a network secured by 1 trillion SHA256 hashes/sec at a cost of 1 microwatt per hash or a network secured by 10 billion Argon2 hashes/sec at a cost of 1 watt per hash, the Argon2 network is actually more secure.
A viable PoW algorithm has to be computationally hard. Not just "memory hard" as CryptoNight claimed - memory densities double every 18 months. But transistor speeds have flatlined. So this is the first hint - you need something that's actually difficult to compute. Cryptohashes are easy to compute; they're intentionally designed to be easy.
ASICs and GPUs outrun CPUs because they have hundreds or thousands of small/simple compute nodes running in parallel. The more complicated the computation, the larger a compute node you need to successfully execute it - which means, the more expensive the ASIC, and the fewer compute nodes can fit on a chip. So again, we're aiming for computational complexity. More to the point - we're aiming for algorithms that leverage the general-purpose design of CPUs.
ASICs are fast because they're hardwired to do a single task. CPUs are slow because they're general purpose - instead of being hardwired for any particular function, they read and interpret a list of instructions that tell them which function to perform. So the obvious way to put the brakes on ASICs is to force them to do more than a single task.
A few multi-algorithm PoW systems have already been designed - they all still fail because the individual algorithms are still cryptohashes, and each one is still easy to implement. If your PoW uses 12 different hash algorithms, big deal, they just design an ASIC with all 12 algorithms on-chip.
The way forward as I see it is to use a PoW with completely randomly generated code, so that it's impossible for an ASIC to hardwire all of the algorithms. At that point the ASIC folks will be required to build an actual CPU into their chips. And that will bring their speed back down to earth.
Note that their on-chip CPU still doesn't need to be as full-featured as a regular CPU, and the simpler they can make it, the cheaper it is to build and the faster it will run. So it's important that the randomly generated code is also inherently complex, using a wide variety of operations and data types. It's also important that the code uses a stable and mature programming language. Something that's too new and experimental may have many holes waiting to be discovered, or unexpected optimizations that allow some implementations to have unfair advantage.
The PRNG used to randomize the code needs to be of high quality, so that it doesn't frequently produce repeated sequences. Anything that occurs frequently can be condensed into a hardware circuit.
My approach, based on this knowledge, is to generate random Javascript. The PRNG I've used is an optimized variant of Mersenne Twister. This PRNG is not a cryptographically secure generator but it doesn't need to be. On the other hand, it has been heavily studied and heavily optimized over many years so it's unlikely for anyone to develop any shortcuts in implementing it.
I've chosen to use Javascript because it's a mature language and there are a number of competing Javascript engines out there, all heavily optimized. The likelihood of significant new optimizations being discovered is low. (And there's a side-benefit - if anyone does discover a new optimization, it may benefit the entire computing community.)
A running proof of concept is available on my github page github.com/hyc/randprog
The blockhashing blob + nonce are fed in as the seed that initializes the PRNG. (Just like in CryptoNight, it's first run thru Keccak, to ensure the bits of the nonce are evenly distributed across the seed.) The source code of the generated program, as well as the output of the generated program, are crunched with Keccak and one of 4 randomly selected hash algorithms (Blake256, Groestl, JH, and Skein) just like CryptoNight. Using the cryptohashes proves that a piece of work is authentic - the hashes will not match if the wrong source code was generated, or it wasn't executed correctly. But aside from proving authenticity, the cryptohashes play no other role.
Kudos to conniedoit for making the initial suggestion that led down this path. https://www.reddit.com/Monero/comments/84y3ci/help_new_funky_pow_idea_against_asics_and_for_the/
submitted by hyc_symas to Monero [link] [comments]

Quantum Computing and the Cryptography in Crypto

https://www.schneier.com/blog/archives/2018/09/quantum_computi_2.html
This article is a great intro to one of the big worries about the future of crypto. It talks about how cryptography works at a very basic level, the specific advancements of QC, and how it could effect certain types of crypto. A few examples of encryption types and their usage in cryptocurrency:
Hashing Function - Hashing is most commonly known for its use in secure password storage and authentication. In crypto this would be the one way hash function which miners are using to secure the chain. Bitcoin's SHA256 is the most famous example
Symmetric Encryption - Data encrypted with a password and decrypted with that same password. An example of this is the encryption of your wallet file
Asymmetric Encryption (Public/Private Key Crypto) - Data signed with a private key can be verified with a public key, data encrypted with a public key can only be read with a private key. This is highly simplified of course, but I highly recommend reading more on the wikipedia page as a next step. Some common uses of pub key crypto is in PGP or GPG as well as networking where it enables two parties to establish secure communications over an untrusted network (HTTPS utilizes this).
submitted by CryptoMaximalist to CryptoTechnology [link] [comments]

Just found a cryptocurrency miner in a chrome app i'd been using for a couple years, can someone help me find the pool information from obfuscated code so I can report him? [25$ reward]

I have been using this chrome extension titled "Classic Scrollbar Buttons" for a couple years, and recently in the past 2 months, I have been noticing that sometimes my CPU will go to 99% and the fans will run. When opening up Chrome's built in task manager, it would have an item listed "subframe: hxxp://78x47x14x180". Upon looking around a little bit, I found out that it was was due to the extension I named above. It's no longer found in the chrome store so I wonder if it was found before me.
I will include a zip file with all the extension code and a quick writeup that i was making before i realized it was a cryptocurrency miner.
In short, it creates a page called _generated_background_page.html that loads an iframe from hxxp://78.47.14[.]180:8080/m/ubeindex.html which has a script linked in it build.js (pastebin link, beautifyed).
The reason I know it's a cryptocurrency miner is because of strings like this:
hashesPerSecond=hashes/elapsed; var cryptonight=new CryptonightWASMWrapper 
Cryptonight is a particular mining algorithm that runs better on CPU, as bitcoin's sha256 asics make botnet mining impossible.
A lot of the code is readable but theres one part in particular that looks like this:
[...] getBinaryPromise(){return new Promise(function(resolve,reject){resolve(new Uint8Array([0,97,115,109,1,0,0,0,1,211,128, [....] 
With a long list of numbers that go on for a while. Note, on pastebin the numbers are all on one line. I'm not 100% sure its obfuscated, but it seems like it is.
I have two questions that I would like answered
25$ btc reward for giving me the full capability of this code and deobfuscates the code (if it is obfuscated). Just want to know what's going on
Zip file here, readme with more detailed info inside https://nofile.io/f/mTXJfAtyMP6/Archive.zip I also took out the manifest.json and _locales and _metadeta folders in zip of the chrome extension folder because it had some hashes i had done which could identify me.
submitted by winlifeat to Bitcoin [link] [comments]

Bitcoin hash và SHA 256 là gì? BFL BitForce SHA256 Single - YouTube How to calculate SHA-256 hash without any software? - YouTube HashFlare how to setup pools on SHA-256 mine Bitcoins. Antminer S3 (Bitcoin;SHA-256;440GH/s) Mining Rig

Creation of Bitcoin addresses. In order to produce a Bitcoin address, a private key, which is a randomly selected number, is multiplied using an elliptic curve to produce a public key. This public key is then put through both the SHA-256 and RIPEMD160 hashing algorithms. Where K = the public key and A = Bitcoin address: A = RIPEMD160(SHA-256(K)) The use of the SHA-256 and RIPEMD160 hashing ... Bitcoin’s monetary policy is programmatic, which means that it is not linked to any human decision. A monetary policy that highlights the virtues of quantitative hardening. The issuance of new ... SHA stands for 'Secure Hash Algorithm'. It is part of the SHA-2 family, the successor to the SHA-1 algorithm, which was used from 2011 to 2015. Research into weaknesses lead to revaluation and the creation of SHA-2. SHA-256 ist eine kryptographische Hashfunktion, die Inhalte wie Daten und Informationen in einen Hashwert (=Hash) umrechnet. Dabei ergeben unterschiedliche Inhalte niemals den selben Hashwert. SHA → Secure Hash Algorithm 256 → Länge des Algorithmus in Bits. Verwendung. Dieser Algorithmus wird bspw. in der Blockchain-Technologie bei Bitcoin, Peercoin und Namecoin verwendet, um den ... SHA-256 is a member of the SHA-2 cryptographic hash functions designed by the NSA. SHA stands for Secure Hash Algorithm. Cryptographic hash functions are mathematical operations run on digital data; by comparing the computed "hash" (the output from execution of the algorithm) to a known and expected hash value, a person can determine the data's integrity.

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Bitcoin hash và SHA 256 là gì?

Antminer S3 (Bitcoin;SHA-256;440GH/s) Mining Rig Jumperbillijumper. Loading... Unsubscribe from Jumperbillijumper? Cancel Unsubscribe. Working... Subscribe Subscribed Unsubscribe 12.2K. Loading ... This video explains the concept of hashing and SHA-256 for newbies. For the complete text guide visit: http://bit.ly/2DmxbJj Join our 7-day Bitcoin crash cou... REGISTER HERE HASHFLARE https://hashflare.io/r/DBC7F302 hashflare hashflare.io hashflare bitcoin mining hashflare btc mining hashflare bitcoin cloud mining h... AntMiner S9 + 1600W PSU 11.85Th/s two fan,11850Gh/s Asic Miner, Bitcon Miner, 16nm BTC Mining, Power Consumption 1172w, SHA256 Заказываем здесь: http ... *** THIS WAS ONLY A JOKE - PLAYING AROUND WITH A VIDEO EDITOR *** From www.butterflylabs.com BitForce SHA256 Single - Technical Specifications Raw performanc...

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