Cryptography jobs

...wired into the existing admin dashboard • A concise implementation guide covering credentials, callback URLs, and any cron jobs or webhooks you added • Final test report showing sandbox and live transaction IDs for every provider I’m looking for someone who has already connected multiple gateways—Stripe, PayPal, Coinbase Commerce, , etc.—and understands PCI-DSS, SSL, and basic cryptography best practices. If you’ve built tokenized card flows or on-chain payment confirmations before, mention it. Timeline is tight, so let me know how many gateways you can onboard per week and any prerequisites you need from me up front. the underlisted are the providers we need Aamarpay 1 0 Enabled 11 0 Enabled bKash 1 0 Enabled BTCPay 2 0 Enable...

My production C# application currently targets .NET Framework 4.8 and has started to show its age. I need it migrated to a supported, more secure runtime (ideally the latest LTS release of .NET), with every dependency updated and any obsolete APIs refactored. The primary driver is security: I want all outstanding vulnerabilities removed, HTTPS enforcement tightened, and modern authentication/cryptography practices adopted throughout the codebase. During the upgrade I also want to introduce a clean integration layer so the app can talk to external systems (REST and, if feasible, simple message-queue endpoints). This should be implemented in a way that keeps the core logic decoupled and unit-testable. Finally, a handful of persistent UI glitches—visual misalignments and sporad...

I’m assembling a video-based training series aimed squarely at intermediate-level cybersecurity learners and need a specialist who can build the entire curriculum on camera from the ground up. The course must revolve around four core modules: • Network security – architecture, traffic analysis and hardening practices • Cryptography – applied crypto, protocol breakdowns and common implementation pitfalls • Ethical hacking – reconnaissance through post-exploitation with real-world tool demos • SOC operations – alert triage, SIEM tuning and incident response workflows Deliverables 1. HD video tutorials, logically sequenced, complete with on-screen demonstrations (Wireshark, Nmap, Metasploit, Snort or comparable tools whe...

I’m assembling an intermediate-level cohort that needs a knowledgeable cybersecurity instructor to guide them through a series of live online classes. Each session must weave together the three focus areas the group has requested: • Network Security • Ethical Hacking • Cryptography My priority is real-time interaction, so please be comfortable running practical demonstrations, answering questions on the spot, and setting up hands-on labs that students can follow along with remotely. I will provide the video-conferencing platform; you bring the course structure, teaching materials, and technical expertise. Deliverables I need from you: 1. A clear syllabus that maps out how the topics will be covered over the duration of the course. 2. Slide decks or vi...

...Biometric authentication (Face ID, Touch ID, and Android equivalents) so users can unlock their vault instantly without typing a master password each time. • A strong, customisable password generator that suggests unique phrases or complex strings on demand. • Secure, encrypted password storage that never leaves the device unprotected—think zero-knowledge architecture with industry-standard cryptography. The finished apps must pass review in both the App Store and Google Play and come with clear documentation that lets me maintain or expand the codebase later. If you prefer Flutter, React Native, Swift + Kotlin, or another modern stack, I’m open, provided the user experience remains consistent across platforms and the security layer is rock-solid. Plea...

...judgment is the part we can't teach. - **You write.** Design documents, threat models, honest post-incident write-ups. Much of this role is producing artifacts a non-technical founder can act on. - **You write your disagreements down and you argue them.** A specification you think is wrong is a document you respond to, not a constraint you quietly work around. **Strongly preferred** - Applied cryptography: envelope encryption, key management and rotation, secure storage of third-party credentials. This maps directly to our gated workstream. - Experience with regulated or audited data — GLBA, SOC 2, HIPAA-adjacent, PCI. Not because we need a compliance officer, but because it shapes how you think about audit trails and data minimization. - Threat modeling as a practic...

...and secure, verifiable storage. You will build a bulletproof data pipeline that ingests raw telemetry from specialized field hardware (such as acoustic/audio sensors, spatial measurement devices, and environmental monitoring hardware), cryptographically verifies data origin at the edge, and commits it into a tamper-evident, audit-ready ledger. Key Responsibilities: 1. Edge Security & Device Cryptography Implement hardware-level security, device attestation, and cryptographic signing (e.g., Secure Elements, TPMs, ECDSA, AES-256) at the embedded device layer before transmission. Ensure end-to-end data integrity from hardware sensor acquisition to cloud ingest, protecting against spoofing, replay attacks, and man-in-the-middle (MitM) tampering. 2. Ingestion & Immutable Le...

...resolution, basic audit logging • Unit & widget tests plus a short security report outlining attack surface and mitigations Acceptance criteria: our CI suite passes, documents stay encrypted on device and in transit, only the correct project team can open a file, and cold-start time stays under five seconds on mid-range Android hardware. If you’ve delivered production Flutter apps with strong cryptography and cloud storage before, kindly share a brief code sample or reference....

...understand, and work with virtually any software stack or programming language. Required expertise includes, but is not limited to: * Reverse Engineering * C, C++, C# * .NET Framework and .NET (Core/5/6/7/8+) * Win32 API * Windows Internals * x86/x64 Assembly * DLL analysis and development * Static and dynamic binary analysis * Debugging (user mode and kernel mode) * Low-level systems programming * Cryptography and cryptographic libraries * USB protocol analysis * Serial communication * Device communication protocols * Driver architecture and Windows drivers * Memory analysis * Performance optimization * Software architecture and large-scale codebases * Python * Rust * Go * Java * JavaScript/TypeScript * PowerShell * Bash * Git and modern development workflows The ideal candid...

Expert Android APK Protection & Security Engineer Long-Term Monthly Contract | Android Security | APK Processing | Python Job Description We are looking for a highly skilled and experienced Android Security and APK Processing Engineer for a long-term monthly contract. The ideal candidate should have strong practical experience with Android application internals, APK file structures, cryptography, binary formats, automation, native libraries, and secure software engineering. The work involves developing and maintaining authorized tools and workflows for Android application protection, secure APK processing, encryption, software integrity, and security research. The successful candidate should be comfortable working at both a high level with Android applications and a low lev...

...that fine-tunes locally, with encrypted parameter sharing so improvements propagate through the network without exposing private data. • UI/UX: complete component library in the hybrid neo/glass style, dark & light themes, accessible colour contrast, smooth micro-interactions, and responsive states for all breakpoints. Deliverables 1. Source-controlled codebase (frontend, P2P layer, AI module, cryptography utilities). 2. Design assets: Figma (or similar) file plus exported icons/illustrations. 3. Setup scripts and a brief deployment guide so I can spin up a local node and invite testers instantly. 4. A short video walkthrough proving text, voice, and video all function under a NATed network scenario. Acceptance criteria – New user can register with email, then op...

...describes what the agent actually has to do to solve it. | Category | Scope | | --- | --- | | **`software_engineering`** | Writing code, fixing bugs, refactoring, migrations, build and dependency work. | | **`system_administration`** | Shell, processes, filesystems, packaging, configuration, operational tooling. | | **`security`** | Vulnerability analysis, exploit development, hardening, forensics, cryptography. | | **`data_science`** | Data wrangling, statistical analysis, reporting, visualization. | | **`machine_learning`** | Training, inference, evaluation, model fine-tuning, pipeline work. | | **`scientific_computing`** | Numerical methods, simulation, computational workflows for natural sciences. | | **`other`** | Anything that genuinely doesn't fit the above. Use spar...

Post-Quantum Cryptography (PQC) & AWS Security Architect We are seeking a highly experienced Post-Quantum Cryptography (PQC) and AWS Security Architect to review, strengthen, and help evolve our enterprise-grade quantum-resistant security platform. The ideal candidate has deep expertise in modern cryptography, NIST-standardized PQC algorithms (ML-KEM, ML-DSA, SLH-DSA), cryptographic agility, secure key management, and enterprise cloud security. You will be responsible for validating and improving our cryptographic architecture, encryption and digital signature workflows, Portable Cryptographic Recovery Packages (CRPs), and overall security posture to ensure protection against both current and future quantum computing threats, including Harvest Now, Decrypt Later ...

...chains (Ethereum, Base, Arbitrum, Polygon) Strong proficiency in TypeScript/JavaScript for backend development (Node.js) Experience developing and deploying smart contracts in production environments Understanding of ZKPs (Zero-Knowledge Proofs) and their application in privacy-preserving protocols Experience with cross-chain messaging protocols (e.g., Hyperlane, Wormhole, CCTP) Knowledge of cryptography fundamentals and blockchain security best practices Excellent communication skills and ability to work effectively in a fully remote, asynchronous environment Bonus Points (Nice to Have): Experience with Solana development (Rust/Anchor) Familiarity with FHE libraries (Zama, Fhenix) Experience building payroll or payments infrastructure Understanding of Circle CCTP atte...

...Database) • Cache -> Redis -> Realtime cache. • Gateway -> Go -> Routing and auth. • RPC -> gRPC -> Internal communication. • Events -> NATS -> Async events. • Web -> -> Portals. • AI -> Python -> OCR, translation, summaries. Customize • Repository Layer • Integration Layer • API Layer • Client Navigation Main Follow Rules • Do not modify Signal protocol. • Do not modify libsignal cryptography. • All Signal access through Signal Integration Service. • Business logic in Go micro services. • ScyllaDB only for messaging. • PostgreSQL only for User data/platform data. Project Scope • Secure messaging platform • Voice & video calling • Business pla...

...implementation) • PostgreSQL -> Relational platform data. (user data and Business Database) • Cache -> Redis -> Realtime cache. • Gateway -> Go -> Routing and auth. • RPC -> gRPC -> Internal communication. • Events -> NATS -> Async events. • Web -> -> Portals. • AI -> Python -> OCR, translation, summaries. Main Follow Rules • Do not modify Signal protocol. • Do not modify libsignal cryptography. • All Signal access through Signal Integration Service. • Business logic in Go microservices. • ScyllaDB only for messaging. • PostgreSQL only for Userdata/platform data. Project Scope • Secure messaging platform • Voice & video calling • Business platform • C...

...three versatile logo concepts (horizontal, stacked, and favicon variants) supplied as SVG, PNG, and source files • A concise brand sheet summarising typography, minimum logo sizes, and dos & don’ts for future contributors Because the audience is highly security-minded, visual choices must avoid anything that feels gimmicky or cartoonish. Think clear lines, clean type, and subtle nods to cryptography or Monero without infringing on their official marks. Acceptance criteria • Names are domain-check cleared (.com or .io preferred) • Logos remain legible at 24 px and up • Palette passes WCAG AA for contrast on light and dark backgrounds • All assets delivered within one week (sooner is ideal) If this sounds like your wheelhouse, let&r...

...Engineering Compiler Design Theory of Computation Design & Analysis of Algorithms Computer Architecture Distributed Systems Parallel Computing Artificial Intelligence & Data Science Machine Learning Deep Learning NLP Computer Vision Neural Networks TensorFlow PyTorch Data Analysis Data Visualization Big Data Generative AI Large Language Models (LLMs) Cybersecurity Ethical Hacking Network Security Cryptography Penetration Testing Cyber Forensics Information Security Kali Linux Cloud & DevOps AWS Microsoft Azure Google Cloud Platform (GCP) Docker Kubernetes Jenkins CI/CD Linux Administration Other Topics Git & GitHub Competitive Programming LeetCode/Interview Preparation System Design Blockchain Internet of Things (IoT) Embedded Systems Automation Testing Selenium A...

...Linux environments. The assessment should be conducted with sufficient depth to not only confirm whether controls are implemented, but also to evaluate their effectiveness and identify any potential methods by which the controls could be bypassed or circumvented (not penetration testing). This will be done in an Amazon AWS-hosted environment, and the scope of testing includes the following: *Cryptography *Database Systems *Gateways *Networking *Operating System Hardening *System Management *System Monitoring The deliverable should clearly demonstrate (using a provided MS Excel template): *Whether controls are implemented or not implemented. *The effectiveness of the controls in practice. *Any identified weaknesses, gaps, or opportunities for circumvention. *Supporting evidence ...

...assessment experience to assist with testing and validating security controls across both Windows and Linux environments. The assessment should be conducted with sufficient depth to not only confirm whether controls are implemented, but also to evaluate their effectiveness and identify any potential methods by which the controls could be bypassed or circumvented. The scope of testing includes: *Cryptography *Database Systems *Gateways *Networking *Operating System Hardening *System Management *System Monitoring The deliverable should clearly demonstrate (using a provided MS Excel template): *Whether controls are implemented, partially implemented, or not implemented. *The effectiveness of the controls in practice. *Any identified weaknesses, gaps, or opportunities for circumven...

...emphasis on cryptographic integration using Thales payShield 9000 or 10K HSMs. Scope of Training: I expect a comprehensive walk-through of the personalization lifecycle, including: - Hardware Overview & Setup: Best practices for configuring the Entrust DS4 or MATICA S6200. - Data Preparation: Understanding the data flow, profile creation, and handling EMV data generation. - Key Management & Cryptography: Hands-on guidance for securely handling keys and integrating the personalization process with Thales payShield 9000 or 10000 HSMs. - Software Configuration: Setting up the respective personalization software and managing machine parameters. - Quality Control & Troubleshooting: Common errors, mechanical vs. software troubleshooting, and validation of the personalized ...

... Energy-efficient AI to address the massive computational demands of training large models. 2. Quantum Computing and Information Science Quantum research aims to harness quantum mechanics for computation far beyond classical computers. Companies like IBM, Google, and IonQ are racing to achieve fault-tolerant quantum systems. Potential applications include drug discovery, materials science, cryptography, and optimization problems that would take classical supercomputers millennia to solve. 3. Biotechnology and Neurotechnology The convergence of biology and technology (often called "BioTech") is creating revolutionary tools: CRISPR gene editing advancements and synthetic biology. Brain-computer interfaces (BCI), such as Neuralink’s work on direct neural communicat...

...will be a Python + Flask web dashboard that consumes data from my existing Wazuh deployment. For now I only require basic monitoring level integration: pull the alert feed, normalize it, and surface the key events. design and develop a Python application dedicated to ethical hacking. The application will simulate attack and defense scenarios in a controlled environment, with a focus on cryptography, security analysis, and best practices for data protection. Attacker's Side: 1. Develop Python source code (Python Notebook) to simulate a controlled attack in a laboratory environment (virtual machine such as Kali Linux or equivalent). 2. Develop a graphical user interface (GUI) application to manipulate, manage, and deploy the controlled attack (e.g., an application bas...

...SDK / Roslyn analyzers. - Complementary (optional): Semgrep, CodeQL, Snyk Code. Experience with Fortify or Checkmarx is a bonus. - Supporting: OWASP Dependency-Check or Dependabot for SCA. GitLeaks / TruffleHog for secrets scanning. VULNERABILITY CLASSES — CUSTOM RULES REQUIRED SQL injection, XSS, CSRF, Auth/authz flaws, Hardcoded secrets, Sensitive data exposure, Unsafe deserialization, Weak cryptography, Insecure file uploads, Dependency misconfigurations, Razor (.cshtml) issues, ASP.NET-specific anti-patterns. DELIVERABLES 1. End-to-end CI/CD integration (GitHub Actions, Azure DevOps, or Jenkins) — every commit and PR triggers a scan; high-severity findings fail the build. 2. Minimum 5 custom security rules (source-to-sink, taint-tracking) targeting the vulnerabi...

...embedded systems and secure hardware design Hands-on experience with secure element chips (e.g., ATECC608, OPTIGA Trust, STMicroelectronics secure elements) Proven experience with or deep understanding of: Crypto hardware wallets OR Air-gapped systems / high-security devices Proficiency with: PCB design tools (Altium, KiCad, or similar) Microcontrollers (e.g., STM32 or equivalent) Hardware-based cryptography Solid understanding of: Side-channel attacks Tamper resistance techniques Secure boot and firmware integrity Ability to work remotely initially and collaborate in person in Tampa as needed Preferred / Nice-to-Have Direct experience building or contributing to a crypto hardware wallet Experience with air-gapped transaction systems (QR-based signing, offline flows) Knowledge of...

...secure, scalable, and efficient PoW blockchain. - Develop the cryptocurrency's protocol and consensus rules. - Create necessary documentation and user guides. - Ensure robust security measures to prevent attacks. - Ideally, candidates should have: - Proven experience in blockchain development, particularly with PoW. - Strong understanding of cryptocurrency protocols. - Familiarity with cryptography and security practices. - Ability to deliver within budget constraints. Looking forward to your proposals! I want the cryptocurrency based on dtuff i traded for the first tikend/coins/ So i traded coins for 150 dollars of groceries for food for the first trade of a certain amount of coins, then i traded 500 dollars for 2 weeks of medicines for a certain amount coins, th...

I am extending the Zcash wallet and need a Rust engineer with a solid cryptography background to build a brand-new feature directly in the wallet layer. The task is entirely on the application side—no consensus-level changes—so a deep understanding of the existing wallet codebase, its RPC interfaces, and shielded transaction handling is essential. What I expect you to handle • Analyse the current wallet module and propose the most appropriate architectural spot for the new logic. • Implement the feature in idiomatic Rust, following the project’s formatting and linting guidelines. • Write unit and integration tests that prove correctness and security. • Update or create accompanying documentation so future contributors can maintain the c...

...Validation Check if user has Mobile ID Verify assurance level (Medium / High) 6. Callback System (Critical) Build secure REST API callback handler Process PACI responses: Authentication result User data Digital signature ➡️ Must validate callback signature and certificate Technical Requirements Backend: .NET Framework (4.0+) or .NET Core Strong experience with: REST APIs SSL/TLS & certificates Cryptography (SHA256, PKI) Callback/Webhook systems Infrastructure: Windows Server environment SSL-secured endpoints Ability to install and manage: Client certificates Root certificates Integration: Work with: PACI SDK (DLL) Magento 2 backend (via Grphql/API/microservice) Mobile apps (iOS/Android) Deliverables: Complete PACI Mobile ID integration Working authentication flows: QR / ...

I need help to recover Bitcoin that went missing after a series of mining-related transfers failed and fees were ded...can trace what happened on-chain, pinpoint where the funds are currently held, and propose a lawful path to retrieve them. If additional information—such as wallet addresses, mempool screenshots, or further blockchain explorer links—will speed up your investigation, let me know and I will provide it promptly. Please have a proven background in Bitcoin wallet recovery, blockchain forensics, cryptography, or similar disciplines. Familiarity with tools like Bitcoin Core, Electrum, and leading blockchain explorers will be essential. Let me know your approach, estimated timeline, and any specific data you’ll need up front so we can move quickly toward ...

...category, preview the flow, and create a skill from a template (which copies the structure and lets them customize). TECH STACK REQUIREMENTS - Backend language: Python 3.10+ - Backend framework: FastAPI - Database: PostgreSQL (via asyncpg, raw SQL — no ORM) - AI/LLM: OpenAI API (GPT-4.1 or later) - Embeddings: OpenAI text-embedding-3-small - Vector DB: Pinecone - Encryption: AES-256-GCM (Python cryptography library) - Frontend framework: React (Create React App) - Graph editor: React Flow - Styling: Plain CSS (no Tailwind, no CSS-in-JS) - Language: JavaScript (no TypeScript) - Primary accent color: #5616ea DELIVERABLES 1. Backend module — A self-contained Python package/directory with: - All route handlers (FastAPI routers) - Database models and migration SQ...

...meaning Maintain a natural, professional academic writing style appropriate for a Q1/Q2 journal Ensure the paper reads as if written by a domain expert, not machine-generated Improve sentence structure, clarity, flow, and coherence throughout Ensure consistent academic tone across all sections Maintain consistent use of technical terminology (post-quantum cryptography, FPGA, RISC-V, NTT, ML-KEM/FIPS 203, ML-DSA/FIPS 204, lattice-based cryptography) Check proper use of abbreviations (defined at first use, used consistently after) Ensure consistent verb tense usage across all sections Maintain logical transitions between paragraphs and sections Preserve all in-text citations and reference numbering exactly as provided What I will provide: Full manuscript text with referenc...

The assignment demonstrates ability to apply cryptography using Python3 and consists of several parts: • Creating a private key, public key, and a certificate with your public key. • Using standard cryptographic functions such as hashing, symmetric/asymmetric encryption and decryption, signing, and verifying. • Applying these techniques to a cryptographic problem: securing a chat application.

Project Description Highlights The Mission: We are building "QuantumShield," a high-performance, user-friendly desktop application that protects sensitive SMB data against "Harvest Now, Decrypt Later" threats using standardized Post-Quantum Cryptography. Key Technical Focus: This is not a standard encryption project. We require implementation of ML-KEM (Kyber) and ML-DSA (Dilithium) within a Hybrid Cryptographic Scheme (PQC + Classical AES-256). The Deliverable: A functional MVP for Windows/macOS featuring a "One-Click Shield" drag-and-drop interface and a "Quantum Health Dashboard" that monitors file vulnerability status. Required Tech Stack: High-performance systems programming (e.g., Rust, C++, or Go) with direct experie...

About Provii Provii is an age verification platform that lets people prove they're old enough to access online content without revealing their actual date of birth. We use zero knowledge proof cryptography. That means a website can confirm "this person is over 18" or "this person is under 15" without ever learning when they were born, what their name is, or anything else about them. We sit at an unusual intersection: serious, military-grade cryptography on one side, and protecting children on the internet on the other. What We Need A logomark (icon/symbol) that works on its own and alongside the word "Provii". We are NOT looking for a stylised wordmark or fancy typography treatment of the name. We want a standalone symbol that could sit in...

...Safety Level IEC 61508 SIL-2 (Safety MCU lockstep + WDT complex) E-STOP ISO 13849 Category 3 / PLd, dual-channel, ≤250ms Isolation ADuM2401 3.75kV, IEC 60601-1 2MOOP rated MTBF >150,000 hours (MIL-HDBK-217F analysis) Fault to Failsafe ≤2ms hardware path, ≤50ms firmware escalation Operating Temp −20°C to +70°C, 5–95%RH non-condensing Protection IP54 enclosure (conformal coated PCB) Security & Cryptography Secure Element NXP SE050C HSM — ECC-P384, AES-256, TRNG, tamper mesh HWID SRAM PUF → 128-bit → SHA-256 → 32-char hex. Burned to eFuse. Audit Storage DS28E35 WORM + 1MB FRAM. HMAC-SHA3-256 chain. ECC-P384 signed. Boot Security 4-stage signed boot chain. HAB4 + ECDSA-P256. dm-verity rootfs. Transport TLS 1.3 mutual auth. DTLS...

...WASM-Based Programmability: - Smart contract deployment - Custom transaction processing - Integration with external APIs Regulatory-Native Privacy Enhancements: - Data encryption - User anonymity - Compliance with regulations Setting Up Decentralized Settlement Infrastructure Ideal skills and experience: - Proficiency in WASM and smart contract development - Strong background in cryptography and privacy protocols - Experience with decentralized finance (DeFi) infrastructures - Knowledge of regulatory compliance in the financial sector Looking for a developer who can work on all three aspects effectively. Dear Developer, I am building Xrealy Ledger (XRY) – a decentralized settlement infrastructure for financial institutions that goes beyond what ...

We are a stealth-mode Deep Tech startup developing a computational engine designed to solve massive-scale problems. While our current applications focus on logistics and finance, we are looking to explore the strategic implications of our technology within the Cybersecurity and Cryptography sectors. We are NOT looking for a developer or a technical writer. We are seeking a Strategic Consultant or Business Development Expert with a deep, pre-existing network in the cyber-intelligence and cryptographic security communities. Your Role: • Provide high-level market insights on current bottlenecks in cryptographic analysis and network security. • Identify key stakeholders and strategic entry points for a novel computational approach in these sectors. • Facilitate initial ...

...mobile app that runs on both iOS and Android. The codebase has already passed functional QA; now I want to be certain it stands up to real-world attacks. Scope • Perform a full security assessment that covers the OWASP Mobile Top 10. • Include static code analysis, dynamic runtime testing and API endpoint verification. • Highlight insecure data storage, improper authentication flows, weak cryptography and any third-party library risks. • Provide clear, reproducible proofs of concept for every confirmed vulnerability. Deliverables 1. Written penetration-test report detailing findings, risk ratings and recommended fixes. 2. A prioritised remediation checklist I can hand directly to my development team. 3. A follow-up retest (once fixes are applie...

I need an expert to in writing research paper, I have already made reports and stuff, it just needs to be plagiarism and AI free Key Requirements: - Research skills to provide a comprehensive assessment and recommendations. Ideal Skills and Experience: - Strong analytical and writing skills for clear reporting. Project is urgent; need it done ASAP.

I’m speeding up a Rust-based blockchain core and need a seasoned architect who lives at the intersection of low-level performance tuning and modern cryptography. The codebase already runs in production, but validator throughput and latency targets are rising faster than our current design can handle. Your role is to dive deep: profile the existing execution paths, spot bottlenecks in cryptographic primitives, and redesign or re-implement anything—from hashing pipelines to network framing—that stands in the way of sub-millisecond block finality. I expect thoughtful use of Rust’s ownership model, async runtimes (e.g. Tokio), SIMD where sensible, and a relentless focus on memory layout and cache behavior. Because this is performance work on a live chain, eve...

...security, and the ability to translate complex concepts into clear, credible and commercially focused website content. • The role requires someone who understands / will be able to research and understand the cyber security domain, including governance, risk, compliance, standards, architecture, threat management and resilience, as well as cyber for emerging technologies e.g. AI, Post Quantum Cryptography, Microservices, Cloud, partnership with other organisations, etc.. • The content needs to reflect industry depth, strategic clarity and credibility with senior executives. • A separate provider is responsible for website design and build. Web design and development are out of scope for this role. However, the content specialist will be required to collaborate wi...

...individual or group using the name Satoshi Nakamoto. In January 2009, the Bitcoin network officially launched with the mining of the first block, known as the “genesis block.” The whitepaper proposed a radical idea: a decentralized digital currency that would operate without a central authority such as a government or bank. Instead of relying on trust in institutions, Bitcoin would rely on cryptography and a distributed network of computers to verify and record transactions. This innovation came in the wake of the 2008 global financial crisis, a period when public trust in traditional banking systems was severely shaken. Embedded in Bitcoin’s genesis block was a newspaper headline referencing bank bailouts—widely interpreted as a subtle commentary on the...

...assignment is to: • study the concepts in “”, • download and compile the official tests from , • create several fresh bit streams of suitable length using your own generator. I intend these to be pseudorandom sequences produced with the “Cryptography doctor” approach I have in mind, so please do not rely on the NIST software itself as a source of bits, only as the evaluator, • run every applicable test in the suite against my sequences, capture all intermediate statistics, and interpret the p-values with respect to the recommended 1 % / 5 % thresholds, • prepare a clear report that explains each step: how you built or installed the suite

This project requires real GPU computation, correct Bitcoin cryptography handling, and verifiable results. This is not a demo or theoretical project. The program must be fully functional and tested. Only apply if you have proven experience with CUDA, cryptography, or Bitcoin key handling.

...Needed – GPU-Accelerated Bitcoin WIF Key Recovery Tool (Verification Required) Project Description: I am looking for an experienced CUDA / GPU developer to build and optimize a high-performance Bitcoin WIF private key recovery program. This project requires real GPU computation, correct Bitcoin cryptography handling, and verifiable results. This is not a demo or theoretical project. The program must be fully functional and tested. Only apply if you have proven experience with CUDA, cryptography, or Bitcoin key handling. Technical Requirements: - Written in C++ with CUDA - Runs on NVIDIA GPUs - Command-line interface (CLI) - Supports Bitcoin WIF (Base58Check) - Supports compressed and uncompressed private keys - Correct checksum validation - Generates private ...

I need a security-minded experienced and professional developer who can build a robust licensing subsystem for my commercial Windows application. The codebase mixes Python and C++, so I want the licensing layer written in both languages where each makes the mo...criteria • A licence signed on machine A refuses to activate on machine B. • Any byte-level change to the DLL or compiled Python shuts the app down gracefully. • Unit tests demonstrate correct RSA signing/verification and HWID matching. • All deliverables build and run on a clean Windows VM using only the provided scripts. If you have deep & professional experience in C++, Python, RSA cryptography, and low-level Windows security, I’m ready to start right away and will happily answer any...

Project Description: I am looking for an expert Android/WearOS developer for a fixed-price, one-time project. I need a custom background service for my Samsung Galaxy Watch Ultra to act as a personal "black box" for auditing my own work environment (health and safety logging). Core Requirements: Persistent Foreground Service: Must stay active for 8+ hours (handling Doze mode a...LTE is available. No UI popups or interaction required. Device Management: Implementation of Device Owner / Kiosk Mode (DPM) to ensure the service remains active during the entire work shift. Deliverables: Full Kotlin source code. Signed APK for ADB installation. Simple guide for installation via ADB. Required Skills: Android Native (Kotlin), WearOS SDK, Background Services (WakeLocks), Cryptog...

I need help decoding a couple of encrypted messages using a standard dictionary code from 1927-1935. I have the messages and the solutions in two examples. There is a third and maybe a fourth and fifth. I need to find the dictionary (or dictionaries) an...messages and the solutions in two examples. There is a third and maybe a fourth and fifth. I need to find the dictionary (or dictionaries) and the method of coding. The messages are in scanned image formats. Requirements: - Experience with historical encryption techniques - Proficiency in handling and decoding dictionary codes - Access to standard dictionaries for 1930s Ideal skills: - Cryptography expertise - Attention to detail and accuracy Please provide samples of similar work. Will require an NDA and IP contract for ...

...when holders burn the Primary Asset, so a secure burn-and-mint mechanism has to be baked directly into the state machine. Technical focus • Cosmos SDK is the chosen framework; please be comfortable extending Tendermint and writing custom Rust / Go modules. • The chain must scale horizontally before anything else, while still keeping latency low enough for responsive dApp UX. • Robust cryptography, clear key-management flows, and a deterministic state machine are non-negotiable. What I expect to receive - Full node implementation with custom consensus logic and asset modules - Oracle-driven minting engine wired to external REST/GraphQL feeds - Burn-and-Mint bridge contracts/modules linking Primary and Reward assets - Deployment scripts, CI tests, and...

I need a JSON Web Key (JWK) for API security, compliant with RSA specifications (RFC 7518). The RSA key must be 2048 bits. Requirements: - Generate a JWK with x5c and x5t - RSA 2048 bits compliance - Adhere to RFC 7518 standards Ideal Skills and Experience: - Expertise in cryptography and JWKs - Familiarity with RFC 7518 - Proven experience with RSA key generation