Question

Which type of encryption allows for role separation where an S3 Full Admin might not be able to decrypt objects?

Option 1: Symmetric Encryption
Option 2: Asymmetric Encryption
Option 3: Public Key Encryption
Option 4: Hashing

Answer 1

Asymmetric Encryption allows for role separation in S3 because it uses a private key for decryption that can be restricted to certain roles, unlike Symmetric Encryption which uses the same key for both encryption and decryption.

Step-by-step explanation:

Understanding Encryption Types and Role Separation in S3

The type of encryption that allows for role separation, where an S3 Full Admin might not be able to decrypt objects, is called Asymmetric Encryption. This method uses two different keys for encryption and decryption, which are known as a public key and a private key. In AWS S3, when you use asymmetric encryption, you can assign the private key to certain roles that should have the ability to decrypt data, while the public key can be used to encrypt data without granting decryption capabilities. This ensures that even those with administrative permissions cannot access the data unless they possess the corresponding private key. Public Key Encryption is, in fact, a form of asymmetric encryption and is utilized for various security measures, including ensuring role separation. On the other hand, Symmetric Encryption uses a single key for both encrypting and decrypting data and thus does not offer the same level of separation. Lastly, Hashing is not a form of encryption but a method to ensure data integrity, transforming data into a fixed-size hash value that can't be reversed to the original data.

Answer 2

Option 2: Asymmetric Encryption allows for role separation where an S3 Full Admin might not be able to decrypt objects. In asymmetric encryption, there are two different keys: a public key and a private key. The public key is used for encrypting the data, while the private key is used for decrypting the data. With this setup, the S3 Full Admin may have access to the public key to encrypt objects, but they would not have access to the private key required for decryption. This ensures role separation and enhances security.