The AES algorithm is an encryption and decryption algorithm that operates on a block-by-block basis, with an input data block of 128 bits in length, and output data block of 128 bits in length. If the input data is over 128 bits in length, it must be broken up into blocks of 128 bits each. AES is a symmetric block cipher algorithm, meaning the same key is used for both encryption and decryption. This design has been synthesized using Cadence Genus with UMC’s 40nm cell library.

SHA256 is a cryptographic hash function designed by the United States National Security Agency (NSA) and first published in 2001. Message blocks are 512 bits each and the engine uses 65 rounds to process each message block, returning a digest of 256 bits. This design is synthesized using Cadence Genus with UMC’s 40nm cell library.