Nokia 7380 User Manual

Also see for 7380 - Cell Phone 52 MB: Quick start guide User guide User guide Service manual

Contents

Nokia 7380 User Manual Manual pdf 90 page image

90Copyright © 2005 Nokia. All rights reserved.Important: Even if the use of certificates makes the risks involved in remoteconnections and software installation considerably smaller, they must be usedcorrectly in order to benefit from increased security. The existence of a certificatedoes not offer any protection by itself; the certificate manager must containcorrect, authentic, or trusted certificates for increased security to be available.Certificates have a restricted lifetime. If Expired certificate or Certificate not validyet is shown even if the certificate should be valid, check that the current date andtime in your device are correct.Before changing any certificate settings, you must make sure that you really trustthe owner of the certificate and that the certificate really belongs to the listedowner.Digital signatureYou can make digital signatures with your phone if your SIM card has a securitymodule. The signature can be traced back to you using the private key on thesecurity module and the user certificate that was used to perform the signature.Using the digital signature can be the same as signing your name to a paper bill,contract, or other document.To make a digital signature, select a link on a page, for example, the title of thebook that you want to buy and its price. The text to sign ( for example, amount,and date) is shown.Check that the header text is Read and that the digital signature icon isshown.