Module aes 

AES block cipher implementations

This module implements the Advanced Encryption Standard (AES) block cipher as specified in FIPS 197.

Constant-Time Guarantees

This implementation mitigates timing side-channel attacks by:

• Using branchless arithmetic for GF(2^8) operations
• Using bitsliced S-box implementations instead of table lookups
• Ensuring consistent memory access patterns
• Validating keys before use to prevent silent failure

Note: On platforms where AES hardware acceleration is available, consider using hardware instructions for better side-channel resistance.

Structs

Aes128

AES-128 block cipher

Aes192

AES-192 block cipher

Aes256

AES-256 block cipher

Enums

Aes128Algorithm

Type-level constants for AES-128

Aes192Algorithm

Type-level constants for AES-192

Aes256Algorithm

Type-level constants for AES-256