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authn

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Secure user authentication design and implementation.

Software Engineering#authentication#session management#MFA#password hashing#credential stuffing
Authorhung-phan
Version1.0.0
Installs0

System Documentation

What problem does it solve?

This Skill addresses the challenges of user authentication, ensuring secure verification of user identity while protecting against common vulnerabilities and threats.

Core Features & Use Cases

  • Password Hashing: Offers best practices for password hashing with algorithms like Argon2id and scrypt.
  • Multi-Factor Authentication: Provides guidance on implementing MFA with TOTP, push notifications, and WebAuthn.
  • Session and Token Management: Covers server-side sessions and stateless tokens (JWTs) with security considerations.
  • Credential Stuffing Defense: Suggests strategies for defending against credential stuffing attacks.
  • Use Case: When designing a new login system, implementing MFA for an existing system, or investigating security breaches related to authentication.

Quick Start

Analyze the authentication design of your application using the authn skill to identify common pitfalls and security considerations.

Dependency Matrix

Required Modules

None required

Components

scriptsreferences

💻 Claude Code Installation

Recommended: Let Claude install automatically. Simply copy and paste the text below to Claude Code.

Please help me install this Skill:
Name: authn
Download link: https://github.com/hung-phan/system-skills/archive/main.zip#authn

Please download this .zip file, extract it, and install it in the .claude/skills/ directory.
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