Cryptographytrabajos

...(SoA). – Acceptance: prioritized risks with treatment plan; SoA published. H3) Core Policies & Procedures (bundled by A.5/A.6/A.7/A.8) – Deliverables: policies/SOPs for incident management, change management (linked to CI/CD), IAM, information classification/handling, asset management, suppliers/third parties, logging/retention (CloudTrail/GuardDuty), backup/restore, vulnerability/patching, cryptography (KMS/HSM), secure development. – Acceptance: documents approved, coded, and in use. H4) Runbooks and Airtable Evidence Board – Deliverables: operational runbooks; master register in Airtable with UC-XXX → S3/Git URL + owner + date + commit SHA; auditor views. – Acceptance: live, traceable board; evidence uploaded. H5) Initial ISMS Operatio...

...(SoA). – Acceptance: prioritized risks with treatment plan; SoA published. H3) Core Policies & Procedures (bundled by A.5/A.6/A.7/A.8) – Deliverables: policies/SOPs for incident management, change management (linked to CI/CD), IAM, information classification/handling, asset management, suppliers/third parties, logging/retention (CloudTrail/GuardDuty), backup/restore, vulnerability/patching, cryptography (KMS/HSM), secure development. – Acceptance: documents approved, coded, and in use. H4) Runbooks and Airtable Evidence Board – Deliverables: operational runbooks; master register in Airtable with UC-XXX → S3/Git URL + owner + date + commit SHA; auditor views. – Acceptance: live, traceable board; evidence uploaded. H5) Initial ISMS Operatio...

...e and web-based consignment stores for selling luxury items. What i need: - Two-sided and decentralized marketplace, designed with a mix as a normal marketplace and a trading webpage - Bid-ask system, this facilitates a real time transaction allowing users to Buy and sell products - Blockchain software that store the product and transaction on a portfolio so that, by virtue of some clever cryptography, users have the credentials to transfer the ownership of the assets they own. Blockchain technology ensures a secure way to Buy-sell products - Tool that helps users and companies check and understand the price and demand trends of luxury items in the secondary market...

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...que tengo almacenados en un servidor,con un certificado que se seleccione desde el cliente y que este almacenado en su navegador.<br />El proyecto esta realizado en MVC spring, html5 y javascript en la parte cliente, y el controlado esta realizado en Java.<br />He visto librerias que permiten realizar este tipo de firma seleccionando un certificado del navegador(@firma , crypto Applet,  web cryptography api)<br /><br /> ...

Estamos desarrollando un proyecto muy ionteresante y novedoso. Buscamos freelancers con conocimientos de informática en algunos de los siguientes conceptos. unbound, squid, ssl bump, suricata, snort (intrusiones), linux kernel, kernel security, hardening, cryptography, tor, i2p, decentralized, odroid, bash sed hawk.<br />Cuantos más conceptos domine, más interesante nos será su propuesta.

...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...

...experience in Android security and mobile penetration testing**. Relevant experience includes: - Android security internals; - ADB; - APK analysis; - reverse engineering; - static and dynamic analysis; - Frida; - Burp Suite; - JADX / apktool; - Android Emulator and physical Android devices; - network traffic analysis; - API security testing; - authentication and session security; - Android cryptography; - anti-debugging and anti-tampering analysis; - vulnerability research and exploitation in authorized environments. Knowledge of **OWASP MASVS and MASTG** is strongly preferred. Experience with Android malware, spyware, secure communication applications or cryptographic applications is a significant advantage. ### What we are looking for We are **not looking for an automated...

I need an experienced blockchain developer to create a new cryptocurrency. Key Requirements: - Develop a secure and scalable cryptocurrency - Expertise in blockchain technology and cryptocurrency protocols - Knowledge of tokenomics...Requirements: - Develop a secure and scalable cryptocurrency - Expertise in blockchain technology and cryptocurrency protocols - Knowledge of tokenomics and market trends - Experience with smart contracts and blockchain integration - Ability to provide ongoing support and updates Ideal Skills: - Proficiency in programming languages like Solidity, Python, or JavaScript - Strong understanding of cryptography and decentralized networks - Previous experience in launching successful cryptocurrencies Please provide examples of past work and relevant quali...

OVERVIEW ──────── Orion is a prop...rewriting it NICE TO HAVE ──────────── - Experience with PyInstaller packaging - Familiarity with dark-theme desktop design patterns - Knowledge of Web3/wallet UX patterns - Experience with code editor components (syntax highlighting, line numbers) HOW TO EVALUATE THE CODEBASE ──────────────────────────── 1. Extract the provided zip (10 files) 2. Install dependencies: pip install cryptography pyotp 3. Run headless tests: python --test (should see 45+ tests pass, 0 failures) 4. Launch the GUI: python (requires a display / desktop environment) 5. Read for full architecture context

Java Cryptography Project – Caesar Cipher and Monoalphabetic Substitution I am looking for an experienced Java programmer to provide technical assistance, implementation guidance, debugging, and code review for a university-level cryptography project. The project involves developing an encryption and decryption application combining Caesar Cipher and monoalphabetic substitution. **Project Requirements:** 1. **Encryption:** Read plaintext from a file named `` and encrypt it using an alternating pattern: - Encrypt 6 letters using Caesar Cipher, with the shift determined by the alphabetical index of the next plaintext letter. - Encrypt the following 8 letters using a predefined monoalphabetic substitution table. - Repeat this pattern throughout the message. ...

...finalize the Minimum Viable Product (MVP) for our B2B cybersecurity platform, B2BCOP ("KMU-Notfall-Tresor") [3].Project Status & What is Already Done:Our frontend is entirely complete, fully designed, and validated. This includes the B2B dark-blue corporate design (Tailwind CSS), all reactive UI dashboard layouts, state managers, checklists, and calculators. More importantly, the entire client-side cryptography layer (AES-GCM-256 via native browser Web Crypto API) is already operational. Data is encrypted directly inside the browser and provided as an unreadable Base64-string. No frontend building is Scope of Work (The 10-Day Sprint Layout):Your core job is to establish the data pipeline by connecting our existing React frontend to a clean, cost-efficient Supabase ...

We are looking for a smart, sharp university student (computer science, cryptography, or web3 enthusiast) who is comfortable with terminal commands to run an overnight test suite for us. We have a cryptographic notary script written in Rust using the Succinct SP1 zkVM framework that is deployed to a custom network. The code works fine locally, but we need someone to run it through an independent test sequence tonight and hand over the console logs and output files tomorrow morning. This is a straightforward, quick turnaround task perfect for a student who wants an overnight gig and a clean reference for their resume. What You Need to DoCompile & Run: Compile the SP1 program to its RISC-V format and run the test script across a few different scenarios. Monitor: Let the tests...

I have several raw barcode strings taken from Different hematology reagent bottles (for example, C008C0F396C0681690). From those strings the analyzer derives three critical pieces of information: lot number, reagent vol...that show: – Correct field extraction from all samples I provide. – Validation that the expiry date is in the expected format. – Confirmation that decoded lot numbers match a list I will pass to you. Preferred stack: pure Python 3 using hashlib, binascii, or any light-weight math you find appropriate. No external GUI or database work is needed. If you enjoy pattern analysis, light cryptography, and tidy code, this should be a focused, self-contained project that you can knock out quickly. Feel free to ask for more sample data once we...

...architecture and scanning engine. Implement AST, CFG, data-flow, taint-flow, source-to-sink and interprocedural analysis. Build customizable security rules and vulnerability detection logic. Support multiple programming languages including Java, Python, JavaScript, TypeScript, C/C++, C#, Go, PHP and others. Detect vulnerabilities such as SQL Injection, XSS, command injection, SSRF, XXE, insecure cryptography, hardcoded credentials, secrets, authentication flaws and insecure coding practices. Implement dependency/SCA integration, vulnerability deduplication and false-positive reduction. Build incremental, differential, repository and CI/CD scanning. Integrate GitHub, GitLab, Bitbucket, Jenkins and Azure DevOps. Develop vulnerability dashboards, reporting, policy management, RBAC a...

...review them and purchase full commercial rights. 1. AI/ML: AI-Powered Early Disease Prediction and Healthcare Assistant Portal (Python, Flask/Streamlit, MySQL/Kaggle dataset). 2. Retail / ERP Module • Built on the MERN stack. • Should cover POS operations, inventory tracking and invoice generation out of the box. 3. Cybersecurity/Cloud: Secure Cloud File Storage System Using Cryptography & OTP Verification (Python or Java, AWS S3/Firebase). Deliverables • Clean, fully documented source code with rights to re-sell or embed in other client solutions. • Database schemas, deployment scripts and architecture diagrams in Markdown ( preferred). • A brief live screenshare to walk me through setup, key design decisions and usage befo...

...acmt.023 (Name Enquiry) requests from a national payment scheme. Correct handling of the scheme's security model: RSA key wrapping + AES encryption/decryption of the message payload, and XML digital signature as per the scheme's technical specification. A valid, signed and encrypted acmt.024 (Name Enquiry Response) returned to the scheme. Skill ISO 20022 messaging (acmt.023 / acmt.024) RSA/AES cryptography and XML digital signatures...

Case Background Digital Technologies Sector Victoria's digital technology sector contributed $34.1 billion t...capabilities in emerging areas such as artificial intelligence and quantum technologies. Melbourne is already home to 188 AI companies, representing the largest concentration of AI firms in Australia (Invest Victoria, 2026a). In quantum technologies, Australia's industry is projected to generate $6.1 billion in annual revenue and create 35,000 jobs by 2045, with particular strength in quantum sensing, cryptography, and photonics (Invest Victoria, 2026b). Victorian universities have deep and broad research capabilities in these emerging technologies, but there remains significant opportunity to translate these research strengths into commercial advantage across Vic...

...acmt.023 (Name Enquiry) requests from a national payment scheme. Correct handling of the scheme's security model: RSA key wrapping + AES encryption/decryption of the message payload, and XML digital signature as per the scheme's technical specification. A valid, signed and encrypted acmt.024 (Name Enquiry Response) returned to the scheme. Skill ISO 20022 messaging (acmt.023 / acmt.024) RSA/AES cryptography and XML digital signatures...

Our atomic-swap engine in Rust already stitches together several Proof-of-Work chains; what it still lacks is a pair of privacy-coin adapters that speak pure CryptoNote. I need you to finish that puzzle by delivering two self-contained crates— and —wired into the existing core. The...the module plugged into my existing engine (I’ll share a private repo link after kickoff). 4. A dedicated GitHub page or repo with MIT / Apache-2.0 licensing, clear build steps, and read-through docs. I will give you protocol documentation, architect notes, and stagenet nodes. The work stays completely on test chains—no mainnet keys or funds involved. If this aligns with your skills in Rust cryptography and deep CryptoNote internals, let’s make privacy-preserving swap...

I am looking for an experienced applied cryptography engineer / cryptography researcher to perform a focused technical review of a small reference implementation. The application context is intentionally confidential and is not required for the review. The task is limited to evaluating the cryptographic architecture, implementation correctness, data format, and long-term reproducibility of the system. The system uses: Shamir’s Secret Sharing with a threshold of 20 out of 255 shares Reusable permanent share types AES-256-GCM authenticated encryption GF(256) arithmetic for the secret-sharing implementation Crockford Base32 encoding CRC32C error detection Duplicate-share detection A standalone offline share-reconstruction tool A complete anonymized review package will be p...

...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...

...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...

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...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...

...com projetos similares desenvolvidos em Flutter. ​1. Habilidades Principais (Obrigatórias) ​Flutter: É a ferramenta que usaremos para construir o aplicativo. ​Dart: A linguagem de programação oficial do Flutter. ​Mobile App Development (ou Desenvolvimento de Aplicativos Móveis): Para categorizar o projeto corretamente nas buscas. ​2. Habilidades Complementares (Importantes para o seu escopo) ​Cryptography (Criptografia): Essencial para o desenvolvedor entender como manipular o cálculo de Hash (SHA-256) com precisão forense. ​Android e iOS: Para garantir que o profissional saiba gerar os pacotes finais para as duas lojas de aplicativos. ​Git / GitHub: Como o código será construído diretamente no seu reposit&oacu...

...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...

...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 ...