W e b76 Copyright © 2006 Nokia. All rights reserved.user certificates may also be savedin the security module by theservice provider.To view the list of the authority oruser certificates downloaded intoyour phone, select Menu >Settings > Security > Authoritycertificates or User certificates.is displayed during aconnection, if the datatransmission between the phoneand the content server isencrypted.The security icon does not indicatethat the data transmissionbetween the gateway and thecontent server (or place where therequested resource is stored) issecure. The service providersecures the data transmissionbetween the gateway and thecontent server.Digital signatureYou can make digital signatureswith your phone if your SIM cardhas a security module. Using thedigital signature can be the sameas signing your name to a paperbill, contract, or other document.To make a digital signature, selecta link on a page (for example, thetitle of the book you want to buyand its price). The text to sign isshown, which may include theamount and date.Check that the header text is Readand that the digital signature iconis shown.If the digital signature icon doesnot appear, there is a securitybreach, and you should not enterany personal data such as yoursigning PIN.To sign the text, read all of the textfirst, and select Sign.The text may not fit within a singlescreen. Therefore, make sure toscroll through and read all of thetext before signing.Select the user certificate youwant to use. Enter the signing PIN.The digital signature icondisappears, and the service maydisplay a confirmation of yourpurchase.