encrypting the messaging folder

[elton_gao]

hi all,
i'm thinking about implementing a application that can prevent freely accessing to the messaging folder or inbox/sent box. anyone accessing to the folders will be prompted to provide a code/password.
i basicly have no clear idea on it,though i roughly think maybe firstly i should get a handle of that folder i want to encrypt,then change the accessing mode(if any) to require a specific code(hard-coded or better modifiable only to a specific username done by question-answer mode).
although it seems there's already such app for S60, i want to have my own.
do you guys have any solutions/suggestions? better to have some stuffs from which i can build my own
really appreaciated.
btw,i'm using S60 2nd fp3.

[nigel.brown]

http://discussion.forum.nokia.com/fo...ad.php?t=78444

You need a PXT. I have seen it work in Symbian 9 but not tried it in 8.