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Cryptography Jobs

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Fixed-Price - Est. Budget: $ 7,000 Posted
We heed pure C library which implements high level ECC primitives * Support at least brainpoolP192r1, brainpoolP192t1 (192bit curves are preferred) * Generate new public/private key pair * Sign arbitrary data with private key * Verify signature with pubic key * C and cryptography expert needed! Library must be side-channel attacks proof, etc. Library must be written in subset of C (no malloc/calloc/realloc/free, only on-stack allocation, no libc) and be as optimized as possible for ARM M0 processor. Compiled version must be under 8kb. Target compiler is GCC 4.6.0. Exact technical restrictions to be discussed with developer. Exact API to be discussed with developer. Code must be well commented, split to files. Static analysis checking is preferred during development and will be done by our side too. All compiler and analysis warning must be fixed, not suppressed, if possible. We are going to provide developer with target device on later stages.

Hourly - Est. Time: More than 6 months, Less than 10 hrs/week - Posted
Writers needed to write articles of blockchain,bitcoin,cryptocoin blogs and shorter summaries that link to the larger stories for example say you write an article for our blog and we want to post the summary in facebook,twitter,tumblr etc etc that link to the full article,also when we make video for youtube we want you to write the summary for youtube description etc etc, You do not have to post we will do the posts just write You must be familiar with bitcoin,blockchain,cryptocoin

Hourly - Est. Time: Less than 1 week, 10-30 hrs/week - Posted
I need a particular Android application to be reverse engineered / Debugged. The general idea is that there are various HTTP(s) calls made by the app, however the POSTdata is encrypted and i need somebody who will be able to find the encryption method/signing key. There is opportunity for alot of work if you are good at this.