There are many security protocol were designed to support
client’s secure login to specific server. Normally, login name
and password were sent to server. Computer server search
user’s login name and password table on received user’s
sending. If it is found in table then server permit client to
access computer resource, otherwise server should ask for the
correct new ones. This traditional action has many critical
problems. First, server has to keep user’s password in top
security level seriously. Second, user has to manage his
password freshness with password changing frequently to
prevent password attack. The other problem is user’s login
name and password might be wiretapped during login message
is traveling on network. This paper suggests a simplify security
login protocol which could overcome all the above problems