Cryptography Jobs and Contests

Cryptography is the study of hiding information. It intersects the disciplines of engineering, computer science and mathematics. Cryptography is involved in securing passwords, access to sensitive material and to computer systems. If your business needs help with cryptography, you can hire freelance cryptography experts to fulfill your tasks. Start by posting your cryptography task today!
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Project/Contest Description Bids/Entries Skills Started Ends Price (AUD)
convert python function to nodejs Hi, we need to have the following function converted from python into nodejs. Further details will be provided on request. def generateSignature(self, text_to_sign): hashed_text = [url removed, login to view](text_to_sign).digest() cipher = [url removed, login to view](_KEY, AES.MODE_CBC, _IV) padding = binascii.a2b_hex("" if len(hashed_text) % 16 == 0 ... 18 Javascript, Python, Software Architecture, Cryptography, node.js Jun 27, 2017 Today6d 20h $156
Create simple cryptocurrency exchange server Need to create simple basic crypto currency exchange server just like coinsecure, unocoin... Please bid only those who have decent knowledge of how crypto currency exchange work 9 Java, Web Security, Software Architecture, Cryptography, Bitcoin Jun 27, 2017 Today6d 19h $1621
Unpack data from binary files (using php) I have some binary files (as I think files packed using java standard libraries and represent data from the database). You need to analyze the data and understand how they are packed. And extract data from files using PHP and get assoc array with values as results. It's not easy job :) You should be familiar with WINhex, php unpack function and good in binary reading and data packing... 7 PHP, Data Processing, Cryptography, Binary Analysis Jun 26, 2017 Today6d 4h $263
Block Chains Block Chain based application 2 Cryptography Jun 25, 2017 Jun 25, 20175d 16h $498
Crypt a folder i wana crypt a file 9 Cryptography, Mathematics Jun 25, 2017 Jun 25, 20175d 3h $32
Write some Software I need someone who can pentest a website for me. I need to see a little demo before hiring you. Its a trusted site, so dnt worry nothing illegal. I will show you the proof. 11 PHP, Website Testing, Cryptography Jun 24, 2017 Jun 24, 20174d 9h $329
Youtube video posting Hello, I am in need for someone who is professional, expert, and skilled in the field of "Acoustic Fingerprinting" and "Video Finger printing" How does it work? and how to bypass this thing on Youtube. I am looking for professionals only and who have solid solution on bypassing this - so Youtube will not block the video. qualified candidates feel free to apply to th... 5 YouTube, Cryptography, Robotics, Broadcast Engineering, Digital Design Jun 22, 2017 Jun 22, 20172d 13h $319
RPC setup in bitcoin mining fees Want to setup RPC in bitcoin mining fees for an exchange who trades for bitcoin. Only bid if you have knowledge of the thing which I need. 9 PHP, Software Architecture, Cryptography, Bitcoin Jun 22, 2017 Jun 22, 20172d 6h $141
Create a CryptoCurrency We are looking for someone to help us build our own cryptocurrency. With your bid please answer the following 3 questions or you won't be considered: 1. Which one is better Tangle/Blockless or Blockchain and why? 2. how is the $ value of a cryptocurrency calculated? 3. if the currency has a limit at 100mil coins how long will it take for the first miner to mine 1 mil coins on a PC/Mac ? ... 11 C Programming, Linux, Cryptography, C++ Programming, Bitcoin Jun 22, 2017 Jun 22, 20171d 23h $1413
Ethereum mining pool turn-key PLEASE DO NOT APPLY IF YOU ARE FRON INDIA, PAKISTAN OR CHINA! Hello, I want a Ethereum mining pool, made from scratch or based on open source but highly secured. I want the person to have experience with cryptocurrency, unix environment, VPS. Thank you! Also, PLEASE do not come with prices that will make you a rich man and me a fool. I know the value, don't try to trick me! 5 Linux, Cryptography, UNIX Jun 21, 2017 Jun 21, 201720h 28m $53572
need someone to explain and help me some cryptographic schemes need someone with good background in cryptography to help me understand some cryptographic schemes that use bilinear maps and elliptic curves 4 Cryptography Jun 21, 2017 Jun 21, 201719h 20m $46
Building a new DAPP on the Ethereum Network Searching for experienced developers who are familiar with the Ethereum, Waves, Stratis or Ubiq platform to build an e-commerce site on this Network, including with white paper, asset creation, ICO etc.. I rather search for a partnership than a freelancer for payment (keeping tokens for future development, marketing etc.) 8 Algorithm, Cryptography, Bitcoin Jun 20, 2017 Jun 20, 201712h 6m $50755
Launch an ICO and Blockchain project. U.S. ONLY I am looking to start an ICO coin on the blockchain. I need a lead designer from the United States only, that has a large background in this industry and is comfortable handling the public relations for the company as well as building a team that can execute the ideas that we come up with. We already have a revolutionary new idea for a blockchain technology that we have set in motion. Now it... 11 Software Architecture, Cryptography, Bitcoin Jun 20, 2017 Jun 20, 20173h 44m $71712
cryptocurrency mining package - FUD Crypter Silent Crypto Miner + Crypto Pool setup 1. Modify (Open source crypto miner) to be silent crypto builder. 2. Crypto miner must be FUD and must be persistent. 3. Crypto miner modified to run at 40% when computer is active 80% when computer is idle. 4. Install and deploy Mining pool. - (Opensource options) 5. All miners must connect to pool. 6. Ability to remotely update miner code and FUD ... 1 C Programming, Computer Security, Cryptography, C++ Programming, Bitcoin Apr 16, 2017 Apr 16, 2017Ended $2491
Algorithm, Cryptography, Linux Expert Required Hi, I need the expert in Algorithm, Cryptography, Linux domain. Details will be shared later. 34 Linux, Algorithm, Cryptography Jan 6, 2017 Jan 6, 20173d 10h $155
JULIA And Algorithm Expert Required JULIA And Algorithm Expert Required 11 Linux, Algorithm, Cryptography Jan 6, 2017 Jan 6, 20171d 20h $108
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