[−][src]Module elliptic_curve::ecdh
ecdh
only.Elliptic Curve Diffie-Hellman (Ephemeral) Support.
This module contains a generic ECDH implementation which is usable with
any elliptic curve which implements the ProjectiveArithmetic
trait (presently
the k256
and p256
crates)
Usage
Have each participant generate an EphemeralSecret
value, compute the
PublicKey
for that value, exchange public keys, then each participant
uses their EphemeralSecret
and the other participant's PublicKey
to compute a SharedSecret
value.
⚠️ SECURITY WARNING ⚠️
Ephemeral Diffie-Hellman exchanges are unauthenticated and without a further authentication step are trivially vulnerable to man-in-the-middle attacks!
These exchanges should be performed in the context of a protocol which takes further steps to authenticate the peers in a key exchange.
Structs
EphemeralSecret | Ephemeral Diffie-Hellman Secret. |
SharedSecret | Shared secret value computed via ECDH key agreement. |