Filtro

Mis búsquedas recientes
Filtrar por:
Presupuesto
a
a
a
Tipo
Habilidades
Idiomas
    Estado del trabajo
    3,053 cryptography trabajos encontrados

    ...(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...

    $1061 Average bid
    $1061 Oferta promedio
    14 ofertas

    ...(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...

    $750 - $1500
    Destacado Urgente Sellado Acuerdo de Confidencialidad
    $750 - $1500
    4 ofertas

    ...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...

    $1776 Average bid
    Acuerdo de Confidencialidad
    $1776 Oferta promedio
    16 ofertas

    ...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 /> ...

    $244 Average bid
    $244 Oferta promedio
    1 ofertas
    Desarrollo de Software
    Finalizado left

    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.

    $244 Average bid
    $244 Oferta promedio
    7 ofertas

    ...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...

    $255 Average bid
    $255 Oferta promedio
    107 ofertas

    ...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 ...

    $321 Average bid
    Urgente
    $321 Oferta promedio
    9 ofertas

    ...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...

    $141 Average bid
    Urgente
    $141 Oferta promedio
    8 ofertas

    ...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 ...

    $479 Average bid
    $479 Oferta promedio
    19 ofertas

    ... 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...

    $21 / hr Average bid
    $21 / hr Oferta promedio
    16 ofertas

    ...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...

    $477 Average bid
    $477 Oferta promedio
    59 ofertas

    ...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...

    $150 Average bid
    $150 Oferta promedio
    51 ofertas

    ...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...

    $315 Average bid
    $315 Oferta promedio
    61 ofertas

    ...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...

    $831 Average bid
    $831 Oferta promedio
    17 ofertas

    ...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...

    $416 Average bid
    $416 Oferta promedio
    25 ofertas

    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...

    $1183 Average bid
    $1183 Oferta promedio
    7 ofertas

    ...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 / ...

    $182 Average bid
    $182 Oferta promedio
    53 ofertas

    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 ...

    $561 Average bid
    $561 Oferta promedio
    10 ofertas

    ...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...

    $1324 Average bid
    $1324 Oferta promedio
    313 ofertas

    ...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...

    $911 Average bid
    $911 Oferta promedio
    49 ofertas

    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.

    $35 Average bid
    $35 Oferta promedio
    12 ofertas

    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...

    $6300 Average bid
    $6300 Oferta promedio
    73 ofertas
    Trophy icon Iconic Logo Design
    Finalizado left

    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...

    $70 Average bid
    Garantizado
    $70
    1800 participaciones

    ...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...

    $75 Average bid
    $75 Oferta promedio
    6 ofertas

    ...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 ...

    $5554 Average bid
    $5554 Oferta promedio
    27 ofertas

    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 ...

    $112099 Average bid
    $112099 Oferta promedio
    27 ofertas

    ...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...

    $11 Average bid
    $11 Oferta promedio
    5 ofertas

    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.

    $63 Average bid
    $63 Oferta promedio
    3 ofertas

    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...

    $2227 Average bid
    $2227 Oferta promedio
    89 ofertas

    ...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...

    $213 Average bid
    $213 Oferta promedio
    64 ofertas

    ...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...

    $21 / hr Average bid
    $21 / hr Oferta promedio
    7 ofertas

    ...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

    $21 Average bid
    $21 Oferta promedio
    13 ofertas

    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.

    $115 Average bid
    $115 Oferta promedio
    1 ofertas

    ...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 ...

    $171 Average bid
    $171 Oferta promedio
    34 ofertas

    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...

    $1500 - $3000
    Destacado Sellado Acuerdo de Confidencialidad
    $1500 - $3000
    52 ofertas

    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...

    $1658 Average bid
    $1658 Oferta promedio
    50 ofertas

    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 ...

    $430 Average bid
    $430 Oferta promedio
    36 ofertas

    ...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...

    $465 Average bid
    $465 Oferta promedio
    13 ofertas

    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

    $31 Average bid
    $31 Oferta promedio
    19 ofertas

    I'm very interested in your job "Ui AI twin based on Uometry" I’m excited to bring your visionary project, Ui, to life. As a developer experienced in AI, cryptography, and secure digital identity solutions, I believe I can help you create the transformative, sovereign digital twin experience you’ve outlined. The integration of quantum-inspired interactions, sacred geometry, and personalized behavioral data is a groundbreaking concept that I am eager to contribute to. I have a strong background in AI, cryptography, and mobile development, and I am passionate about creating innovative and secure digital experiences. I will ensure your app is not only cutting-edge but also scalable, secure, and aligned with your vision. I look forward to collaboratin...

    $35 / hr Average bid
    $35 / hr Oferta promedio
    1 ofertas

    ...It must be a Windows desktop application developed using Python, with MySQL/MariaDB as the database backend. The project scope is clearly defined and fixed. No additional features beyond what is mentioned below. --- TECHNOLOGY STACK (MANDATORY) Python 3.10 or higher Desktop GUI: PyQt5 / PyQt6 / PySide6 (preferred) Database: MySQL / MariaDB PDF generation: ReportLab Licensing & cryptography: cryptography / PyOpenSSL Packaging: PyInstaller (final EXE) Application must work fully offline after installation --- CORE FUNCTIONAL REQUIREMENTS 1. Licensing System (Mandatory) Application must run only if a valid license file is present License must be: Time-bound (valid from / valid to) Machine-bound (hardware or system hash) License verification must occu...

    $263 Average bid
    $263 Oferta promedio
    12 ofertas

    Hi , Looking for .NET Code Security Expert is a professional specializing in building and auditing secure applications using Microsoft's .NET framework. Need to focus on secure coding practices, threat mitigation, secure design, validation controls, authentication/authorization, cryptography, and handling vulnerabilities like SQL Injection and XSS to protect against cyber threats, often certified through programs like CASE.NET. They integrate security throughout the Software Development Life Cycle (SDLC) Looking forward to your response. Regards, Dipak

    $6 / hr Average bid
    $6 / hr Oferta promedio
    31 ofertas

    ...investigations, and provided insights to support decision-making. I am passionate about solving real-world problems using AI and security-driven approaches. I enjoy working at the intersection of machine learning, cybersecurity, and data science, with a particular interest in secure machine learning systems, threat detection, and intelligent data modeling. Key Skills: Machine Learning, Cybersecurity, Cryptography, Data Analysis, Statistical Modeling, Python, Java, C, SQL, MLops (Airflow, Mlflow, Docker, FastAPI), Forensics Tools, Network Security (Wireshark), SPSS, SAS, R....

    $7682 Average bid
    $7682 Oferta promedio
    33 ofertas

    ...ERC-standards, and, where it makes sense, an L2 or private side-chain—yet the architecture must still communicate with other chains for true interoperability. Here’s the flow I have in mind: • On-chain smart contracts store only encrypted hashes/pointers; actual PHI lives off-chain (IPFS, Filecoin, or an encrypted database—open to your recommendation). • Role-based permissions and public-key cryptography determine who can write or read a record, aligning with HIPAA requirements. • A lightweight middleware layer (REST or GraphQL) bridges existing EHR systems and handles FHIR mapping so providers can plug in with minimal refactoring. • Cross-chain messaging or bridging (e.g., Chainlink CCIP, LayerZero, or a custom relay) proves that a re...

    $103 Average bid
    $103 Oferta promedio
    7 ofertas

    ...tamper with data in transit or at rest. Scope • Only the web apps in my staging and production environments are in scope; no network or mobile testing is required. • Attention should centre on TLS configuration, session handling, key management, and any custom encryption routines embedded in the codebase. Typical tooling might include Burp Suite, OWASP ZAP, SSL Labs, and your preferred cryptography analyzers, but feel free to suggest alternatives that achieve deeper coverage. Deliverables 1. A concise executive summary highlighting overall risk. 2. A detailed technical report listing each discovered vulnerability, its CVSS or comparable severity rating, proof-of-concept evidence, and step-by-step remediation advice. 3. A brief call or recorded walkthrough c...

    $498 Average bid
    $498 Oferta promedio
    49 ofertas

    Job Description We are looking for a developer to create and integrate Aadhaar Secure QR Code decoding and verification into both an Android app and a Web app. The solution should scan the Aadhaar Secure QR, decrypt and verify UIDAI-signed data, and extract demographic details ...Secure QR Code * Decode & verify UIDAI digital signature * Extract details: Name, DOB/YOB, Gender, Address, Photo (if available) * Integrate with Android (camera scan) and Web (webcam scan) * Use open-source libraries (e.g., pyaadhaar) or third-party APIs * Follow UIDAI offline verification guidelines ### Skills Required * QR code processing * Android development * Web development * API / cryptography / data verification experience * Aadhaar / KYC experience preferred ### Project Type Fixed p...

    $208 Average bid
    $208 Oferta promedio
    20 ofertas

    ...Transaction Transmission and Propagation o Network Verification Process • Mining and Consensus Basics o Bitcoin Mining Introduction o Spending the Transaction PART II: CRYPTOGRAPHIC FOUNDATIONS Chapter 3: Cryptographic Keys and Addressing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53 • Cryptographic Fundamentals o Public Key Cryptography o Why Use Asymmetric Cryptography? o Elliptic Curve Cryptography Explained o Private Keys and Public Keys • Address Evolution and Types o Output and Input Scripts o IP Addresses: The Original Address for Bitcoin (P2PK) o Legacy Addresses for P2PKH o Base58check Encoding o Compressed Public Keys • Modern Address Standards o Legacy Pay to Script Hash (P2SH) o P2SH Collision Atta...

    $22 / hr Average bid
    $22 / hr Oferta promedio
    51 ofertas

    Principales artículos de la comunidad cryptography