The use of computers in public places i ncreasingly common

in everyday life. In using one of these computers, a user is trusting

it to correctly carry out her orders. For many transactions, particularly

banking operations, blind trust in a public terminal will not satisfy most

users. In this paper the aim is therefore to provide the user with authenticated

communication between herself and a remote trusted computer,

via the untrusted computer.-The use of computers in public places is increasingly common

in everyday life. In using one of these computers, a user is trusting

it to correctly carry out her orders. For many transactions, particularly

banking operations, blind trust in a public terminal will not satisfy most

users. In this paper the aim is therefore to provide the user with authenticated

communication between herself and a remote trusted computer,

via the untrusted computer.