N tier Architecture.

My understanding of N tier. 

N tier is an abstraction layer system that lets you pass data between applications without direct interaction. The main benefit of this is that if the public server is compromised the attacker will have to keep compromising N servers/ services to get to the meat of your product. This is part of the layered onion security model approach. The more layers you have between a possible attacker and your data the better.

 A basic example is you collect information on the front end of your application that you want to encrypt. But rather than having the encryption module have direct access to the front end you abstract it.  So it would go that the user inputs the data in the front end that is then picked up by a queue and then processed and encrypted. Frother more you can make it so that the public endpoint can only encrypt the data not decrypt.

Now you can also make it so that the Front-end servers and back-end servers cannot talk to each other.  And the back end service is allowed to decrypt the data with limits and controls in place and it is only short lived.



Front end => SMS message queue => Encryption modual => Store encrypted at rest in DB.

--------
Firewalled
--------

 Backend => Reads DB =>Decryption model => Short lived decrypted data.

Comments

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  2. Chuck BushDecember 17, 2024 at 4:47 AM

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