public class KeyAgreement extends Object
The keys involved in establishing a shared secret are created by one of the
key generators (KeyPairGenerator or
KeyGenerator), a KeyFactory, or as a result from
an intermediate phase of the key agreement protocol.
For each of the correspondents in the key exchange, doPhase
needs to be called. For example, if this key exchange is with one other
party, doPhase needs to be called once, with the
lastPhase flag set to true.
If this key exchange is
with two other parties, doPhase needs to be called twice,
the first time setting the lastPhase flag to
false, and the second time setting it to true.
There may be any number of parties involved in a key exchange.
Every implementation of the Java platform is required to support the
following standard KeyAgreement algorithm:
DiffieHellman