Message Authentication Code (MAC) vs Unauthenticated Encryption
Developers should learn and use MACs when building systems that require secure data transmission or storage, such as in web APIs, financial transactions, or IoT devices, to prevent unauthorized modifications and spoofing attacks meets developers should learn about unauthenticated encryption to understand its limitations and avoid using it in security-critical applications where data integrity is required, such as in financial transactions or secure communications. Here's our take.
Message Authentication Code (MAC)
Developers should learn and use MACs when building systems that require secure data transmission or storage, such as in web APIs, financial transactions, or IoT devices, to prevent unauthorized modifications and spoofing attacks
Message Authentication Code (MAC)
Nice PickDevelopers should learn and use MACs when building systems that require secure data transmission or storage, such as in web APIs, financial transactions, or IoT devices, to prevent unauthorized modifications and spoofing attacks
Pros
- +It is essential in scenarios where both integrity and authenticity are critical, like in authentication tokens or file verification, and is often combined with encryption for confidentiality in authenticated encryption schemes like AES-GCM
- +Related to: symmetric-encryption, cryptography
Cons
- -Specific tradeoffs depend on your use case
Unauthenticated Encryption
Developers should learn about unauthenticated encryption to understand its limitations and avoid using it in security-critical applications where data integrity is required, such as in financial transactions or secure communications
Pros
- +It is primarily used in legacy systems or specific scenarios where confidentiality alone is sufficient, but modern best practices strongly recommend authenticated encryption instead
- +Related to: authenticated-encryption, cryptography
Cons
- -Specific tradeoffs depend on your use case
The Verdict
Use Message Authentication Code (MAC) if: You want it is essential in scenarios where both integrity and authenticity are critical, like in authentication tokens or file verification, and is often combined with encryption for confidentiality in authenticated encryption schemes like aes-gcm and can live with specific tradeoffs depend on your use case.
Use Unauthenticated Encryption if: You prioritize it is primarily used in legacy systems or specific scenarios where confidentiality alone is sufficient, but modern best practices strongly recommend authenticated encryption instead over what Message Authentication Code (MAC) offers.
Developers should learn and use MACs when building systems that require secure data transmission or storage, such as in web APIs, financial transactions, or IoT devices, to prevent unauthorized modifications and spoofing attacks
Disagree with our pick? nice@nicepick.dev