One approach to securing data involves embedding cryptographic processes directly within physical components. This contrasts with executing encryption algorithms through instructions interpreted by a central processing unit. An example of the former is a dedicated chip designed specifically for performing Advanced Encryption Standard (AES) calculations, while the latter involves running an AES library as part of a software application.
Employing purpose-built integrated circuits for cryptographic operations can offer advantages in speed and security. Historically, hardware implementations were favored for computationally intensive tasks where performance was critical. Furthermore, isolating the cryptographic functions within dedicated circuits can provide a degree of protection against software-based attacks and tampering. However, such solutions may incur higher initial costs and can be less flexible to update or modify compared to their software counterparts.