Nokia 5140I manual Digital signature, 131

provider. Authority certificates and user certificates may also be saved in the security module by the service provider.

To view the list of the authority or user certificates downloaded to your phone, select Menu > Web > Settings > Security settings > Authority certificates or User certificates.

The security indicator is displayed during a connection, if the data transmission between the phone and the content server is encrypted.

The security icon does not indicate that the data transmission between the gateway and the content server (or place where the requested resource is stored) is secure. The service provider secures the data transmission between the gateway and the content server.

Digital signature

You can make digital signatures with your phone if your SIM card has a security module. 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 a book you want to buy and its price. The text to sign, which may include the price and date, is shown.

Check that the header text is Read and that the digital signature icon is shown.

If the digital signature icon does not appear, there is a security breach and you should not enter any personal data such as your signing PIN.

To sign the text, read it all first and select Sign.

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