Definition of elliptic curve cryptography

An approach to public key cryptography based on properties of elliptic curves. The primary advantage of ECC is efficiency, which becomes important as devices get smaller and security requirements get more demanding. For example, ECC keys between 163 bits and 512 bits are one-sixth to one-thirtieth the size of equivalent security-level RSA keys. As key size increases the relative efficiency of ECC increases.

Computer Science