1. Where should I put the certificate?

In fact, certificates are not simply placed in any folder. Certificates are used to sign software that needs to be "signed". Don't lose the certificate you got, because the certificate applied after 2007. 12. 13 is valid for three years, and many softwares are signed during the use period of mobile phones. 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.

I store it in the computer. What software needs to be signed, just find out and use it, but don't forget the path, a small certificate file.

Second, what is a signature:

( 1)

Generally speaking, signing is to write your mobile phone serial number into the software to be installed, that is, one-to-one correspondence. A the software signed by mobile phone users cannot be used by other users, and there will be a certificate error prompt.

(b) Specifically, because S60

The third system security settings. Therefore, the program started at random must pass the official certification. But not every developer has the ability to pass the official certification, and most of the certified software is protected section UID. All sinicization and cracking of the protection section UID also depend on the certificate in a big program. Although you can't crack the official authentication, you can apply for a free certificate for your mobile phone by using the free certificate in your hand ... binding the serial number of our mobile phone. Only suitable for our mobile phones. But for the fun of playing computer, the most practical example is to add the self-startup function to the program that supports self-startup.

Third, why do you want to sign:

Signature can make the software successfully pass the data information verification of mobile phone, that is, certificate verification;

(a) signature can prevent virus files;

(2) Signature can make some software start with the startup of the mobile phone, without opening the program every time it is turned on;

(3) Signature can simplify the registration process of some software, that is, there is no need to calculate the registration code through the registration machine;

(four) signature can crack some software (because the genuine official certificate is damaged during localization or cracking);

The number of smartphones in Saipan has occupied 50% of the market, so the future trend is more and more certificates.