What is the use of 5230 s signatures and certificates

A certificate is a credential that allows you to use a piece of software.

Signing, on the other hand, is the process by which you make a piece of software usable.

Examples: 2. Use a tool called Signature, which is available on the Symbian forum.

Here's how to use it: right-click on the certificate, import, and press enter.

About the certificate: Significance: The mobile phone certificate can be understood as: the passport of the software.

Product Name: phone certificate

The third version of S60 has made significant security improvements, with stricter regulations on third-party software installed and running in the system. Some software involving mobile phone software and hardware security, personal information security and other aspects of the operation has been specially restricted (for example, automatic start with the mobile phone boot is one of the restricted functions).

Some software will have functional limitations when installed, such as: Calden.

Function. The main thing is to prevent malware. In order for an application to implement these "specifically restricted" functions, it must be "signed". In other words, someone has to be responsible for the safety of this operation! Programs that are not signed cannot be installed and run

The "certificate" you get is put on**?

Certificates are not used to install, nor are they simply placed in a folder, they are used to sign software that needs to be "signed". Certificates are not used directly, they are packaged into the SIS software through a special program. The purpose of a certificate is simply to give a certain amount of authority to the program.

Don't lose your certificate when you get it!

What is a signature?

"Signing" is the process of packaging a certificate into a program that needs to be signed. This process requires a special signature tool (software).

What is Self-Signed Program Software?

As the name suggests, self-signature means that you need to sign by yourself, and this self-signed program software can only be used for the mobile phone with the serial number, and other mobile phones cannot be used. (Now the forum produces a certificate for the same batch of 1000 serial numbers).

Certificate expiration: The certificate expired mentioned here, not the mobile phone prompted the certificate expired when installing the program, but the expiration of the cer certificate file you applied for, in fact, it doesn't matter if it expires, the expired certificate can also be successfully signed on the program, but when installing this signed program, you need to adjust the time of your hand to the validity period of the cer certificate file to install it.

Usually we have the first mobile phone software will have a signed version and an unsigned version, for the unsigned software, we can apply for a certificate to make the software for their own machine, through the sign tool provided by Symbian to make their own mobile phone key file and then write it into the software to be installed, and then this software can only be installed in your mobile phone.

In short, a certificate mechanism is a measure used to address security issues, and its role is mainly two:1. Prove the legitimacy of the software. 2。Allow the software to start autonomously.

Hello, let me give you an example:

For example, if you want to go abroad, you need a passport, and after you have a passport, do you need a customs visa when you go to customs? A mobile phone certificate is equivalent to a passport, and a signature tool is like a customs visa, when you want to install a software that requires certificate signing, you can't pass without a certificate and signature. i.e. cannot be installed.

It is equivalent to that you can't go out of the country without a passport and a visa from customs. I'm talking in layman's terms. Need to know more can hi me.。。

Have a nice day

The certificate and signature are probably the same, which is what software you use sometimes.

It can't be installed without a certificate.

Due to the adjustment of the certificate production policy on the official website of Symbian Certificate, and the restrictions and changes to the production process, the production of certificates for various forums was forced to suspend from June 22.

With this change to the official website of Symbian Certificate, the production of certificates for all forums in China has been affected and forced to stop.

Although the official website of Symbian Certificate still provides developer certificates, the new regulations restrict the IMEI number and add a software UID restriction (for example: even if the certificate is applied, the certificate can only be used on the specified mobile phone, and it can only be valid for a software signature with the specified UID), which actually leads to the fact that everyone can no longer sign with the developer certificate.

This practice has a wide range of influences, and no matter which forums at home and abroad**, they can no longer provide users with certificate production services under the current circumstances.

Current workaround:

1.For software with low permission requirements, you can try to use the mobile version of the Symbian direct signing tool to sign the way, but it cannot be guaranteed to be effective, and it can only be said that you can try it.

2.Of course, you can also hack the phone, and you don't need a certificate signature to install any software after the phone is cracked.

However, there is a program to be signed during the cracking process, so you may need to sign the direct signing tool above.

If Saipan reopens by then, just send me the link to this question and I'll make it for you for free.