Which key sizes are supported by AES encryption?

AES (Advanced Encryption Standard) is a widely used symmetric encryption standard that supports key lengths of 128 bits, 192 bits, and 256 bits. These key sizes correspond to different levels of security:

• A key length of 128 bits is considered secure for most applications and is faster due to less computational overhead.

• A key length of 192 bits provides a higher level of security and is used for environments where stronger encryption is necessary.

• A key length of 256 bits offers the highest level of security available within AES and is often used in scenarios where sensitive data needs to be protected against sophisticated attacks.

The support for these specific key lengths allows AES to be flexible enough for a variety of security needs while still maintaining efficiency and speed during encryption and decryption processes. The selected answer aligns perfectly with the standards defined for AES, highlighting its key structure inherent to its design and application in cryptography.