Open classification: software, computer, mobile phone, certificate, certificate.

Meaning: mobile phone certificate can be understood as: a pass for software.

English name: telephone certificate

The third edition of S60 has greatly improved the security, and has stricter regulations on the third-party software installed and running in the system. Special restrictions are imposed on the operation of some software related to mobile phone hardware and software/personal information security (for example, automatic startup of mobile phone startup is one of the restricted functions).

Some software will have functional restrictions after installation, such as incoming calls.

function

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Mainly to prevent malicious software. In order to realize these "specially restricted" functions, the application must obtain a "signature". In other words, someone should be responsible for the safety of this operation! A program without any signature cannot be installed and run.

How to get a mobile phone certificate?

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At present, you can't apply for a mobile phone certificate directly from SymbianSigned.com website, but there are many mobile phone-related websites that can help you make a mobile phone certificate for free. It is recommended that mobile Internet users apply to Dangle.com d.cn Software Channel, which can be completed within one day. And you can download it at any time, not afraid of losing it.

Where should I put the obtained "certificate"?

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In fact, certificates are not simply placed in any folder. Certificates are used to sign software that needs to be "signed". Certificates are not used directly, but packaged into sis software through a special program. The role of a certificate is only to give the program certain permissions. Don't lose the certificate you got, because a certificate is valid for 6 months and you can sign a lot of software. If the certificate expires, you can apply for a new certificate, or you can adjust the time of the mobile phone before installation. Just adjust the time to the validity period of the certificate.

Usually downloaded mobile phone software has a signed version and an unsigned version. For unsigned software, we can apply for a certificate to make software for our machine, make the key file of our mobile phone through the sign tool provided by Saipan, and then write the software to be installed, and then the software can only be installed in your mobile phone.

In short, the certificate mechanism is a measure to solve security problems, and its functions are mainly two points: 1. Prove the legitimacy of the software. 2。 Allow the software to start itself.