W e b

Security module

The security module improves security services for applications requiring a browser connection, and allows you to use a digital signature. The security module may contain certificates as well as private and public keys. The certificates are saved in the security module by the service provider.

To view or change the security module settings, select Menu > Settings > Security > Security module settings.

Certificates

Important: Even if the use of certificates makes the risks involved in remote connections and software install tion consider bly sm ller,

they must be used correctly in order to benefit from incre sed security. The existence of a certificate does not offer any p otection by itself; the certificate manager must contain correct, authentic, or t usted certific tes for increased security to be available. Certificates have est icted lifetime. If Expired certificate or Certificate not valid yet is shown even if the certificate should be valid, check that the current date and time in your device are correct. Before changing any certificate settings, you must make sure that you really trust the owner of the certificate and that the certificate really belongs to the listed owner.

There are three kinds of certificates: server certificates, authority certificates, and user certificates. You may receive these certificates from your service 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 into your device, select Menu > Settings > Security > Authority certificates or User certificates.

is displayed during a connection, if the data transmission between the device 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 device 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.

72

Model 3555c - 23 April 2007

Page 71 Page 73
Page 72
Image 72
Nokia 3555c manual Security module, Certificates, Digital signature
Page 71 Page 73

3555c specifications

The Nokia 3555c is a distinctive mobile phone that captures the essence of early 2000s design and technology. Released as a compact foldable device, the 3555c was part of Nokia's lineup during a time when stylish flip phones were gaining popularity. With its ergonomic design and user-friendly interface, it appeals to those who appreciate classic mobile aesthetics.

One of the main features of the Nokia 3555c is its flip design, which not only provides protection for the screen but also adds an element of style. The phone boasts a 1.5-inch CSTN display with a resolution of 128 x 128 pixels. This display, although small by today’s standards, was sufficient for text messaging, viewing caller ID, and accessing basic features.

The Nokia 3555c is powered by the Series 30 interface, a straightforward operating system that offers essential functions without overwhelming users. With support for SMS and MMS, the phone makes it easy to stay connected. Furthermore, the device includes a variety of ringing tones and has a polyphonic sound feature, which enhances the user experience with pleasant alerts.

In terms of connectivity, the 3555c supports GSM technology, allowing users to make calls and send messages efficiently. It operates on 2G networks, which was the standard at the time of its release. The phone also features the Nokia suite of built-in applications, including a calendar, calculator, and alarm clock, ensuring that users have the tools they need for everyday life.

The Nokia 3555c features a standard battery life, offering talk time of up to several hours and standby time that can stretch into days. This longevity made the device a reliable choice for users who did not want to constantly recharge their phones. The removable battery allows for easy replacement, ensuring that the phone can continue to function well over time.

The compact design of the Nokia 3555c makes it ideal for pocket storage, and its lightweight construction adds to its portability. The phone is finished in a variety of colors, allowing users to express their personal style.

Overall, the Nokia 3555c stands as a representation of its time, blending practical functionality with a fashionable exterior. While it may not compete with modern smartphones, its legacy remains cherished among those who remember the early days of mobile communication.
Top Page Image Contents