ECDHn

ECDHn is a cryptographic protocol that enables secure key exchange between two parties over an insecure communication channel. Developed as a variant of the Elliptic Curve Diffie-Hellman key exchange (ECDH) algorithm, ECDHn is designed to provide optimal performance and security characteristics for high-speed networks.

ECDHn is based on the Elliptic Curve Cryptography (ECC) key exchange mechanism. This mechanism relies on the mathematical properties of elliptic curves to facilitate secure, efficient, and fast key exchange over the public internet. The underlying mathematics of ECC provides a computational structure that enables pairs of parties to agree on a shared secret key without actually exchanging the key.

ECDHn is notable for introducing two significant improvements to the ECDH algorithm. Firstly, it uses the curve NIST P-521, a 521-bit elliptic curve that offers enhanced security due to its larger key size and reduced elliptic curve vulnerability. Secondly, ECDHn limits the prime subgroup size to 505 bits in order to enhance the resistance to certain types of attacks.

ECDHn maintains the compatibility of its ECDH foundation with multiple cryptographic libraries. This makes its implementation possible in software environments without compromising the key exchange process security. ECDHn serves as an authorized cryptographic adjustment that delivers uncompromised performance and heightened compliance.