Skip to main content

Diffie-Hellman Security

Definition

Diffie-Hellman security pertains to the robustness of cryptographic protocols that use the Diffie-Hellman key exchange algorithm against various attacks. This security primarily rests on the computational difficulty of the Discrete Logarithm Problem or its elliptic curve variant. The algorithm enables two parties to establish a shared secret key over an insecure communication channel without prior arrangement. Its effectiveness depends on the selection of sufficiently large prime numbers and generators, making the underlying mathematical problem computationally intractable for attackers.