security-auth
Authentication and authorization patterns for secure access control. Use when: (1) Implementing JWT authentication, (2) OAuth2/OIDC integration, (3) Building RBAC/ABAC systems, (4) Session management, (5) MFA implementation. Auto-detects: auth, jwt, oauth, oidc, rbac, abac, permission, session, token, refresh, login, password, mfa, 2fa
Quellinformationen
- Repository
- Fujigo-Software/f5-framework-claude
- Letzte Quellaktivität
- 4. Februar 2026 um 06:29
- Erkannte Sprache von SKILL.md
- Englisch
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- 24
- Forks
- 8
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Quellanweisungen · Schreibgeschützte Vorschau- name
- security-auth
- version
- 1.0.0
- description
- Authentication and authorization patterns for secure access control. Use when: (1) Implementing JWT authentication, (2) OAuth2/OIDC integration, (3) Building RBAC/ABAC systems, (4) Session management, (5) MFA implementation. Auto-detects: auth, jwt, oauth, oidc, rbac, abac, permission, session, token, refresh, login, password, mfa, 2fa
- related
- ["security","security-infra","api-design"]
# Security Auth Skill
Authentication and authorization patterns for secure applications.
## Quick Reference
### Authentication Methods
| Method | Use Case | Security Level |
|--------|----------|----------------|
| JWT + Refresh | SPAs, Mobile apps | High |
| Session cookies | Traditional web apps | High |
| OAuth2/OIDC | Social login, SSO | High |
| API Keys | Service-to-service | Medium |
| MFA | High-security apps | Very High |
### Authorization Patterns
| Pattern | Use Case | Complexity |
|---------|----------|------------|
| RBAC | Most applications | Low-Medium |
| ABAC | Fine-grained control | High |
| ReBAC | Relationship-based | Medium |
| Permission Matrix | Admin panels | Low |
## JWT Token Service
```typescript
export class TokenService {
private readonly accessExpiry = '15m'; // Short-lived
private readonly refreshExpiry = '7d'; // Rotate on use
generateTokenPair(user: User): TokenPair {
const accessToken = jwt.sign(
{ sub: user.id, type: 'access' },
this.accessSecret,
{ expiresIn: this.accessExpiry }
);
const refreshToken = jwt.sign(
{ sub: user.id, type: 'refresh' },
this.refreshSecret,
{ expiresIn: this.refreshExpiry }
);
return { accessToken, refreshToken };
}
}
```
## Password Hashing
```typescript
import bcrypt from 'bcrypt';
// Hash password (cost factor 12)
const hash = await bcrypt.hash(password, 12);
// Verify password
const isValid = await bcrypt.verify(password, hash);
```
## RBAC Guard (NestJS)
```typescript
@Injectable()
export class RolesGuard implements CanActivate {
constructor(private reflector: Reflector) {}
canActivate(context: ExecutionContext): boolean {
const requiredRoles = this.reflector.getAllAndOverride<Role[]>(
ROLES_KEY, [context.getHandler(), context.getClass()]
);
if (!requiredRoles) return true;
const { user } = context.switchToHttp().getRequest();
return requiredRoles.some(role => user.roles?.includes(role));
}
}
```
## OAuth2/OIDC Flow
```typescript
// Passport OAuth2 Strategy
passport.use(new OAuth2Strategy({
authorizationURL: 'https://provider.com/oauth2/authorize',
tokenURL: 'https://provider.com/oauth2/token',
clientID: process.env.CLIENT_ID,
clientSecret: process.env.CLIENT_SECRET,
callbackURL: '/auth/callback',
}, (accessToken, refreshToken, profile, done) => {
return done(null, profile);
}));
```
## Anti-Patterns
```typescript
// Storing passwords in plain text
user.password = plainPassword; // NEVER DO THIS
// Missing rate limiting on auth
app.post('/login', loginHandler); // ADD RATE LIMITING
// Long-lived access tokens
{ expiresIn: '30d' } // TOO LONG - use 15m max
```
## F5 Quality Gates
| Gate | Requirement |
|------|-------------|
| G2 | Auth requirements documented |
| G2.5 | Auth controls implemented |
| G3 | Auth tests passing (90%+ coverage) |
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