tsof
as
forward
a
detailedsystemarchitectureandthe
client
solution
Openfire
system
a
serversideand
side.Usingopen-source
systemofinstantmessagingplatformrealizesclient—side
1II
instantmessaging.Themodulecompositionofthesystemclient-sideis
introduced,
and
XMPP
instant
messaging
ale
protocol
and
at
thethe
communication
currentsecurity
mechanismof
thesystem
analyzed.Aimedand
problemsofcommunicationdata
thecharacteristics
ofthesystem,dataencryptionalgorithmIDEAhasbeenimproved,also
A-IDEA
algorithm
isdesigned,aswelltwoalgorithmsalecompared
to
fromseveralaspects.Fortheimagefileencryption,theschemais
adoptA-IDEAandRSAalgorithmscombined.RunningProcessesofthe
server