The ECDSA Sign core from Digital Core Design offers a cutting-edge solution for digital signatures using elliptic curve cryptography (ECC). Known for its optimal size-to-performance ratio, this core implements essential standards such as NIST and Brainpool, across a variety of elliptic curves. Offering a NAND gate range from 30k to 110k, it provides a high-efficiency option for implementing secure digital signatures in electronic communication and authentication systems.