Divinekk (Ogbonna C. Divine ) · GitHub
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Divinekk/README.md

Hi 👋 I'm Ogbonna C. Divine

I specialize in:

  • 🔐 API Security — OWASP Top 10, AES-256-GCM encryption, BOLA prevention
  • 📊 Threat Detection — SIEM log analysis, custom detection rules, incident triage reporting
  • Java & Spring Boot for building robust, secure RESTful APIs
  • 🛡️ Spring Security for authentication, authorization, and OWASP compliance
  • 🗄️ SQL & Database Optimization with a focus on data integrity

I'm open to exciting opportunities in building reliable and secure software systems! 📢


✨ About Me

I'm a Computer Science Engineering graduate of University of Debrecen, Hungary interested in building secure and reliable software systems. I enjoy learning by building, breaking things, and improving through iteration.

My undergraduate thesis researched cryptographic vulnerabilities in Nigerian banking systems — JWT, AES, BCrypt, RSA256, TOTP — and was awarded Best Presenter at the TDK Research Conference, Informatics Section I (sponsored by EPAM, Morgan Stanley, Nokia).


🚀 What I'm up to

  • 🛡️ Building SentinelAPI — a Spring Boot tool that detects OWASP API attack patterns (brute force, BOLA, SQL injection) in real time and generates structured incident reports
  • 🔍 ThreatLens — hands-on SIEM exercise using Elastic Security: log analysis, custom detection rules, incident triage report
  • 🛠️ Improving code structure, testing, and documentation

🌐 Connect with me

LinkedIn Gmail Medium


🛠️ Tech Stack

Languages Backend & Security
DevOps & Database Tools & Testing

📄 Research

  • 🏆 Best Presenter — TDK Research Conference, Informatics Section I, University of Debrecen, April 2025
  • 📘 Thesis: Cryptanalysis of Cryptographic Algorithms in Nigerian Banking Security: JWT, HMAC, RSA256, AES, HOTP, TOTP and BCrypt
  • ✍️ Blog Series: API Security in Nigerian Fintech

"Security is a process, not a product. Build it to withstand, not just to work."Bruce Schneier

Pinned Loading

  1. Vault-API Vault-API Public

    Spring Boot banking API prototype demonstrating secure authentication, authorization, and data protection

    Java

  2. Nigerian-Fintech-Security-Analysis Nigerian-Fintech-Security-Analysis Public

    Research-backed analysis of security vulnerabilities in Nigerian financial technology systems, with proposed solutions.

  3. ThreatLens ThreatLens Public

    Hands-on SIEM practice using Elastic Security on Elastic Cloud. Real log analysis, custom detection rules, and a formal incident triage report

  4. SentinelAPI SentinelAPI Public

    A research-backed API security monitoring tool built with Spring Boot, detecting OWASP Top 10 API attack patterns in real time and generating structured incident reports.

    Java