The Proposed Visual Authentication Scheme through Internet (Model and Description for Dynamic Password Visual Authentication)

Internet

WWW

Server

login ID

a random image

correct password

send a random image each time when user login

a key image stored in disk

RESPONSE

CHALLENGE

+

=

1 2 3 4 5

DYNAMIC PASSWORD :

the password is different each time

1st 1 2 3 4 5

2nd 2 4 4 7 5

3rd 5 8 0 5 8

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