Nokia 8600 User Manual

Also see for 8600 - Luna Cell Phone 128 MB: Specification sheet User guide User guide Service manual

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Nokia 8600 User Manual Manual pdf 70 page image

59Copyright © 2007 Nokia. All rights reserved.To view or change the security modulesettings, select Menu > Settings >Security > Security module settings.CertificatesImportant: Even if the use ofcertificates makes the risksinvolved in remote connectionsand software installationconsiderably smaller, they must beused correctly in order to benefitfrom increased security.The existence of a certificate doesnot offer any protection by itself;the certificate manager mustcontain correct, authentic, ortrusted certificates for increasedsecurity to be available.Certificates have a restrictedlifetime. If Expired certificate orCertificate not valid yet is showneven if the certificate should bevalid, check that the current dateand time in your device arecorrect. Before changing anycertificate settings, you mustmake sure that you really trust theowner of the certificate and thatthe certificate really belongs tothe listed owner.There are three kinds of certificates: servercertificates, authority certificates, and usercertificates. You may receive thesecertificates from your service provider.Authority certificates and user certificatesmay also be saved in the security module bythe service provider.To view the list of the authority or usercertificates downloaded into your phone,select Menu > Settings > Security >Authority certificates or User certificates.is displayed during a connection, if thedata transmission between the phone andthe content server is encrypted.The security icon does not indicate that thedata transmission between the gateway andthe content server (or place where therequested resource is stored) is secure.The service provider secures the datatransmission between the gateway and thecontent server.Digital signatureYou can make digital signatures with yourphone if your SIM card has a securitymodule. Using the digital signature can bethe same as signing your name to a paperbill, contract, or other document.To make a digital signature, select a link on apage, for example, the title of the book youwant to buy and its price. The text to sign,which may include the amount and date, isshown.Check that the header text is Read and thatthe digital signature icon ( ) is shown.If the digital signature icon does not appear,there is a security breach, and you shouldnot enter any personal data such as yoursigning PIN.To sign the text, read all of the text first, andselect Sign.