exchange-security

Implement JWT authentication with RS256, RBAC, and BCrypt hashing for Spring Boot APIs.

Updated Aug 23, 2026

Search Tags:#security #jwt #rbac #oauth2 #spring-security #token-rotation

Ready to run

npx skills add https://github.com/RennAraujo/Trenvus --skill exchange-security

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: exchange-security
Source: https://github.com/RennAraujo/Trenvus/tree/main/.agents/skills/exchange-security
Command: npx skills add https://github.com/RennAraujo/Trenvus --skill exchange-security

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Implement robust, scalable security for financial applications by delivering JWT-based authentication with RS256, RBAC, and secure coding practices.

Core Features & Use Cases

JWT authentication with RS256 and RSA key management
Refresh token rotation, revocation, and secure storage
Role-Based Access Control (RBAC) and method-level security for admin and user endpoints
CORS hardening and security headers to protect APIs
Password hashing with BCrypt and input validation to prevent common vulnerabilities

Quick Start

Configure your Spring Boot project with RSA-based JWT keys, RBAC, and security policies to protect APIs and manage user roles.

Frequently Asked Questions about exchange-security

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I implement JWT authentication with Spring Security for a financial application?▼

JWT authentication for financial applications is implemented using RS256 signatures, Spring Security, and RBAC to secure APIs. This approach enforces RSA key management, token rotation, and BCrypt password hashing to protect regulated microservices.

What is refresh token rotation and how does it secure API endpoints?▼

Refresh token rotation secures API endpoints by issuing a new token on each refresh request and revoking the previous one. This prevents token replay attacks and ensures safe session handling in JWT-based authentication systems.

Does this Spring Security RBAC setup support method-level security for admin endpoints?▼

Yes, this Spring Security RBAC setup supports method-level security to restrict access to admin and user endpoints. It applies role-based access controls across microservices to enforce authorization policies in regulated environments.

How do I configure RSA keys and environment variables for JWT token signing?▼

Configuring RSA keys for JWT token signing involves setting up RS256 key pairs through configurable environment variables. This enforces secure key management and API design guardrails without hardcoding secrets directly into the application.

What is the best way to apply CORS hardening and password hashing in a regulated environment?▼

The best way to apply CORS hardening and password hashing in a regulated environment is using BCrypt for passwords and strict CORS controls. This combination prevents common vulnerabilities and secures API headers in financial applications.

Why does my OAuth2 token rotation fail in microservices without proper revocation?▼

OAuth2 token rotation fails in microservices without proper revocation because refresh tokens remain valid after use. Implementing token revocation and secure storage ensures expired or compromised tokens are immediately rejected across distributed APIs.