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Advanced CSRF Protection with RSA
- Advanced CSRF Protection with RSA encryption adds an extra layer of security and prevents unauthorized API usage, stale requests and brute-force attempts.
- This approach uses RSA asymmetric encryption to verify the integrity of API requests and securely encrypts request metadata like method, URL, and timestamp.
- The payload containing the encrypted data in the custom header is decrypted on the backend.
- If the validation passes, only then the API request is processed, or else the request is rejected.
- The article includes code snippets for client-side implementation (React + Axios) and backend implementation (Node.js + Express).
- This approach grants three key features such as asymmetric encryption, request freshness, and method & URL validation.
- The method is applicable to all API interactions and prevents criminals from misusing APIs outside of the browser.
- The project 'Winzy Social' implemented this approach to enhance the security of API interactions and prevent unauthorized or stale requests.
- The author encourages readers to try this approach and enhance their application security with encrypted, timestamped CSRF tokens.
- The code repository and Live Demo are available on GitHub in the article.
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