149Copyright © 2005 Nokia. All rightsAuthority certificates and user certificates may also be saved in the securitymodule by the service provider.To view the list of the authority or user certificates downloaded into your phone,select Menu > Web > Settings > Security settings > Authority certificates or Usercertificates.The security indicator is displayed during a connection, if the datatransmission between the phone and the content server is encrypted.The security icon does not indicate that the data transmission between the gateway and thecontent server (or place where the requested resource is stored) is secure. The serviceprovider secures the data transmission between the gateway and the content server.Digital signatureYou can make digital signatures with your phone if your SIM card has a securitymodule. Using the digital signature can be the same as signing your name to apaper bill, contract, or other document.To make a digital signature, select a link on a page, for example, the title of thebook you want to buy and its price. The text to sign, which may include theamount and date, is shown.Check that the header text is Read and that the digital signature icon isshown.If the digital signature icon does not appear, there is a security breach, and youshould not enter any personal data such as your signing PIN.To sign the text, read all of the text first, and then select Sign.
