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58 Setting up WAP and email
Security module (Locks)
The security module is located on the SIM card if your
network operator or service provider supplies such a
service. It can contain both certificates and your private
keys. The security module is protected by a special
access PIN and your phone asks you for it when
establishing a secure connection.
To enter the access PIN (for the security module)
and the signature PIN
•Scroll to Connect, WAP Options, Security, Locks.
Digital signatures
You can sign a contract with your phone by entering
a digital signature PIN as if signing with a pen on paper.
Digital signature records can be traced back to your
private key through a certificate that is used for signing
a contract.
All transactions (signed contracts) made with your
phone when browsing are stored in your phone.
To check your contracts
• Scroll to Connect, WAP Options, Security, Contracts.
Trusted certificates and Client certificates
To establish a secure connection when using certain
WAP services, for example banking or WAP shopping,
you need certificates in your phone.
• The different types of certificates are as follows:
1. Server certificates are used to identify a WAP gateway
to the phone and to show that it is certified by a trusted
authority. The server certificate is checked against
trusted certificates that are stored in the phone or in a
security module. If the phone cannot verify the identity
of a server, you are given the option to terminate or
continue the connection.
2. Trusted certificates are used to verify the WAP gateway
that you are trying to connect to. Your phone may
already contain trusted certificates when you buy it.
If you have a security module, it may also contain
trusted certificates. You can also download trusted
certificates from www.SonyEricsson.com.
3. Client certificates are located in a security module
together with your private keys. Client certificates
can be used to present your identity to a bank or other
services. They can also be used for digital signatures.
To check the certificates in your phone
• Scroll to Connect, WAP Options, Security,
Client Certificates.
