ToolypetMCP
intermediate4 minutessecurity

JWT Authentication Setup

Set up JWT-based authentication: generate tokens, create signing keys, and implement TOTP for 2FA.

jwtauthenticationtotp2fa

何时使用此配方

Complete JWT authentication setup for web APIs. Combines token generation with 2FA for enhanced security, following OWASP best practices.

步骤

1

Secret Generator

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Create a secure signing key

提示词：Generate a 256-bit random secret in hex format for JWT signing
2

JWT Generator

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Create a signed JWT token

提示词：Generate a JWT with payload {sub: 'user123', role: 'admin'} using HS256 and the secret, expires in 1 hour
3

JWT Decoder

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Verify the token structure

提示词：Decode the generated JWT to verify its header and payload
4

TOTP Generator

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Set up two-factor authentication

提示词：Generate a TOTP secret for 2FA with issuer 'MyApp'

常见问题

Should I use HS256 or RS256 for JWT?

Use HS256 for simple setups where the same server signs and verifies. Use RS256 for microservices where different services verify tokens with a public key.

How long should JWT tokens last?

Access tokens: 15 minutes to 1 hour. Refresh tokens: 7-30 days. Shorter lifetimes reduce the impact of token theft.

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