Calculate / find SHA256 hash sequence (GPU, Quantum Computing)

Stängt Publicerat 6 år sedan Betalades vid leverans
Stängt Betalades vid leverans

I'm looking for someone who can help me come up with the best possible solution for a project my company is doing for one of our university clients. Geeks and creative minds are most welcome!

This is a programmatic task.

Imagine there is a sequence of 2 million SHA256 hashes and each hash on the list is generated based on the previous one, so for example hash number 1 is:

$hash1 = 4a86d363c0f674e05378faecbcb94799db30e5d5a2fa780f8776eb46aa2b2db

and hash number 2 will be (using PHP function here):

$hash2 = hash('sha256', $hash1);

so $hash2 = 54a106663be605dae335cad68bad9cd968832ab4476d8973c1ce8eae1eac0a50

Now the interesting part. Only the two last of these hashes from the list are known (so hash number 1,999,999 and hash number 2 million), and we need to somehow find (calculate, crack, brute-force, etc.) the first hash in the whole sequence, thus revealing the complete sequence.

In other words, all hashes are "hidden", and only the two last ones are known.

I have come up with a PHP script, but the time needed to execute it exceeds the age of our universe (literally), so another approach is necessary.

I think this is similar to mining cryptocurrencies (solving hashes), so i believe we could use GPUs to speed things up. I can have access to a professional mining rig (6 x RX580, i think above 100 MHash computing power), but i don't know how to write the software (what language would be best here?).

Another idea was to use quantum computing, but again i don't know how to write the script. I know that IBM is offering access to quantum computing: [login to view URL]

Or perhaps totally different idea would help here...?

Also, my PHP solution is "linear", so it can only be run in a single instance, it's not possible to distribute it or run in paralell (due to the fact of having to store all hashes in a database, which would be HUGE). Is there a way to change the architecture, so it can run on multiple machines?

I'm open to any ideas that can help here! :)

Please wirte a few words about you and how would you approach solving this task. I'd like to make sure that you are a real human person interested in completing the project :) Thanks!

This is a project i'm posting on behalf of my company, we are offering 15.000 USD to a person that can help us solve this puzzle successfully. Long term emplyment opportunity is very possible afterwards.

Kryptografi PHP Programming Kvantum UNIX

Projekt-id: #15184615

About the project

18 offerter Distansprojekt Aktivt 6 år sedan

18 frilansare har lagt bud på i genomsnitt $15542 för det här jobbet

utkarshkatiyar19

hello sir, I have experience with quantum computing. I can do this for you.

$20000 USD inom 45 dagar
(280 omdömen)
7.3
albertmobi29

Greetings, We have experience with Cryptocurrency and similar kind of projects. We can assist you in writing codes for finding the whole sequence. Relevant Skills and Experience We are 80+ in-house professionals hav Mer

$15000 USD inom 10 dagar
(46 omdömen)
7.3
alwaysanshuman

Hi, this is Anshuman from Atventus India. We have been into Web Development and Design since past 8 years. We have been creating awesome websites for myself and various clients around the world. We focus on great user Mer

$10000 USD inom 10 dagar
(41 omdömen)
7.0
hawkscodeaus

I have 7+ years in PHP - website design & development with very good experience. Relevant Skills and Experience I am good in Cryptography, PHP, Programming, Quantum, UNIX Proposed Milestones $13600 USD - Cost

$13600 USD inom 30 dagar
(116 omdömen)
7.6
ambyt

I can do this job. I have got 9 years of development experience so I will be able to do this job efficiently. Relevant Skills and Experience PHP, WordPress, Joomla, Magento, Cake php, CodeIgniter,Prestashop, Shopify, Mer

$16666 USD inom 25 dagar
(41 omdömen)
6.5
maksimchukmak

Здравствуйте! Меня зовут Максим, из Киева, Украины (UTF + 2) Я буду краток. Мы являемся компанией IntoBi. Наши разработчики имеют огромный опыт разработки корпоративных решений на разных уровнях. Stay tuned, I'm sti Mer

$20000 USD inom 30 dagar
(25 omdömen)
6.1
freelancerkpis

We are happy to bid on this project. ***** We provides dedicate developers and Development and design services as well. ***** We are having a great team of Web developers with 7-8 years of experie Relevant Skills a Mer

$16666 USD inom 10 dagar
(21 omdömen)
4.8
zkutch

Hello More 20 years programming experience. I need more details to set real price and time. Regards. Relevant Skills and Experience More 20 years programming experience. Proposed Milestones $11111 USD - solution I n Mer

$11111 USD inom 10 dagar
(13 omdömen)
4.2
sarathginjupalli

Hi, I can do this project, I can find the remaining hashes in constant storage space. I broken the sha1 using "Pollard's rho method". Given the computing resources you have I can break sha256. Relevant Skills and E Mer

$15000 USD inom 15 dagar
(7 omdömen)
4.1
Dreamzcommu

Hi Sir, Greetings! Founded in May, 2013 as pioneer technology service rendering company with the slogan and principle: INITIATE INNOVATION. Having great people working together with their talents, to design, devel Mer

$15000 USD inom 50 dagar
(1 omdöme)
3.0
MetaoriginLab

We are a team ofBlockchain Developer having expertise in Ethereum, Bitcoin and writing smart contracts. Relevant Skills and Experience We have developed several projects in Blockchain some of them are Stock Exchange M Mer

$27777 USD inom 10 dagar
(2 omdömen)
1.5