Cryptographie Jobs

Quero lançar um token próprio, padrão TRC-20, na rede TRON. O ativo deverá se chamar “Moeda” e usar o símbolo “usdt”. Preciso do contrato inteligente completo, escrito em Solidity para a máquina virtual da TRON, já configurado para: • Transferências, aprovações e consulta de saldo dentro das normas TRC-20 • Compatibilidade imediata com TronLink, TRONSCAN e qualquer carteira que suporte tokens TRON • Verificação de código no TRONSCAN, exibindo nome, símbolo, supply e decimals corretamente Entrego o nome, símbolo e supply inicial; espero de você: 1. Código-fonte claro, comentado e sem dependências obscuras 2. Compila&cced...

I'm looking for an experienced Python developer to create a secure, detailed password manager. Security is the top priority for this project. Key Features: - Password Generation - Autofill Functionality - Encrypted Storage - Hashing - GUI - Multi-factor Authentication Ideal Skills: - Proficiency in Python and GUI development - Strong understanding of encryption and security protocols - Experience with multi-factor authentication integration - Previous work on similar password management tools Please provide samples of relevant work and ensure you have a solid security background.

i want a PCB for in-situ, real-time verification of sensor integrity in a live without interrupting the control process of components of PCB for cooling, heating and humidity, communication ports and AutoDetect sensor frailer equipment' because hardware often operates in controlled, safety-critical, and validated environments layout Design with components of advanced PCB for control /set point and manage temp of cooling sensor , heating sensor and humidity sensors, light sensor, proximity sensor, water low sensor, pressure sensor, high/low voltage sensor, wire and wireless commination ports lan, usb, can bus, rs-485 etc, processor, ram, memory, and AutoDetect sensor frailer, all types of alarms like heater, compressor, open door, high/low temperature with voltage protection, tempe...

I’m finalising an MDM solution and the last step is converting my certificate signing request into the .pem file the system expects. On macOS I create the .csr with a GUI app, yet when I feed that file into the conversion process I consistently get “File access denied”. I need you to: • diagnose why this particular .csr is being rejected, • successfully generate the required .pem, and • show me the repeatable steps (or correct settings/permissions) so I can recreate the file myself when the certificate renews. If you prefer using Terminal-based OpenSSL or have another reliable workflow, that’s fine as long as the end result is a valid .pem that my MDM server accepts. Quick turnaround is appreciated; as soon as the file works I’ll rel...

My DeFi protocol is code-complete and ready for public launch, but it cannot go live until an exhaustive penetration test confirms it is watertight. The scope is limited to the Solidity smart contracts powering liquidity pools, staking logic, rewards distribution, and governance. I need you to probe for the full range of threats—re-entrancy, flash-loan manipulation, oracle spoofing, unchecked arithmetic, gas griefing, privilege escalation, and any logic flaws unique to DeFi. A balanced mix of automated scanners (e.g., Slither, MythX, Echidna) and deep manual review is expected so no subtle issue slips through. Deliverables • Comprehensive audit report detailing every vulnerability, its severity, reproduction steps, and clear remediation advice • Proof-of-concept e...