The SHA-3 Crypto Engine is a hardware accelerator for cryptographic hash functions, delivering area efficiency, high throughput, and full compliance with NIST FIPS 202. It supports all SHA-3 variants (SHA3-224/256/384/512) as well as extendable output functions (SHAKE-128/256). The design includes automatic byte padding, operates in a single clock domain, and is hardened against time-based side-channel attacks (SCA). The core has been extensively verified for reliable deployment.