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CERTIFICATES
There are three kinds of certificates: server certificates, authority certificates and user
certificates.
certificates.
•
The phone uses a server certificate to improve security in connection between the
phone and the gateway. The phone receives the server certificate from the service
provider before the connection is established and its validity is checked using the
authority certificates that are saved on the phone. Server certificates are not saved.
The security icon
phone and the gateway. The phone receives the server certificate from the service
provider before the connection is established and its validity is checked using the
authority certificates that are saved on the phone. Server certificates are not saved.
The security icon
is displayed during a connection if the data transmission between
the phone and the gateway (identified by the IP address in the Edit active service
settings) is encrypted.
However, the security icon is not an indication that the data transmission between the
gateway and the content server (place where the requested resource is saved) is secure.
It is up to the service provider to secure the data transmission between the gateway
and the content server.
settings) is encrypted.
However, the security icon is not an indication that the data transmission between the
gateway and the content server (place where the requested resource is saved) is secure.
It is up to the service provider to secure the data transmission between the gateway
and the content server.
•
Authority certificates are used by some services, such as banking, for checking the
validity of other certificates. Authority certificates can be either saved in the security
module by the service provider, or they can be downloaded from the network, if the
service supports the use of authority certificates.
validity of other certificates. Authority certificates can be either saved in the security
module by the service provider, or they can be downloaded from the network, if the
service supports the use of authority certificates.
•
User certificates are issued to users by a Certifying Authority. User certificates are
required, for example, to create a digital signature and they associate the user with a
specific private key in a security module.
required, for example, to create a digital signature and they associate the user with a
specific private key in a security module.
DIGITAL SIGNATURE
You can create digital signatures with your phone. The signature can be traced back to you
through the private key in the security module and the user certificate that was used to
create the signature. Using the digital signature may be considered to be equal to a normal
signature on any legal document.
through the private key in the security module and the user certificate that was used to
create the signature. Using the digital signature may be considered to be equal to a normal
signature on any legal document.
To create a digital signature, select a link on a page, for example, the title of the book you
want to buy and its price. The text that needs to be signed (possibly including amount, date,
etc.) will be shown.
want to buy and its price. The text that needs to be signed (possibly including amount, date,
etc.) will be shown.
Check that the header text is Read and that the digital signature icon
is shown.
Note: 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.
you should not enter any personal data such as your signing PIN.
To add the digital signature to the text, read all of the text first and then you can select
Sign. The text may not fit on a single screen. Therefore, make sure to scroll through and read
all of the text before signing.
Sign. The text may not fit on a single screen. Therefore, make sure to scroll through and read
all of the text before signing.
Select the user certificate that you want to use. Key in the signing PIN and select OK. The
digital signature icon will disappear and the service may display a confirmation of your
purchase.
digital signature icon will disappear and the service may display a confirmation of your
purchase.
6820.ENv1_9310322.book Page 94 Wednesday, October 15, 2003 1:43 PM