Generally by the common key digital certificates, secret keys and digital signatures of three parts. When we send out the message to append a digital signature, the same as the digital signature and public key to the message. Receiver, after having the public key, it will use it to check up on the reliability of digital signatures, and reconstruct the message. Receiver can also use the same access to public key encryption on the message at this time of the avant-garde sender, you must use the private key can decrypt the contents of the message view. Here we are with an ad hoc application example to depict the entire process of its operation.
2, for a digital certificate Encrypt messages using digital certificates
the first step is to obtain a digital certificate. Currently there are many organizations in the network to render digital certificates for services, and many are loose. As an average user, applications can use the free digital certificates to meet the requirements.
Now we compare the well-known network card through NETCA Electronic Certification system as an example describes the use of the process. Open a browser, come in the testca.netca.net address and struck return to opened the page, click in the “Certificate Request” link to opened the page in the postdating will show three antithetic types of use of digital certificates, click the “trial-type ad hominem digital certificate request “link, then they pop up a window that prompts to instal the CA certificate chain is only a computer, to utilize for and use of digital certificates. Therefore necessitate to click “Install Certificate chain” button, then may convey up a “latent conflict of script” message box, click “Yes” to go on to trust this site, then pop up a “security discouraging” window, informing about the denominated Certificate Authority certificate instaled, click “Yes” button to corroborate the installation.
Seconds waiting a moment that the certificate chain will be prompted to install successfully, while access to personal information to fill in the window, how to fill out detailed personal information, especially e-mail address must be correctly completed. In the ad hominem information below requires the user pick out the cryptographic service provider, where we urge you pick out “MicrosoftBase Cryptagraphic ProviderV1.0″, in the bottom of the prompts the user to come in some additive information that can be picked out fill up.
Submit personal information after a while that has been accepted and will be prompted to issue the certificate and show business receiving the certificate number and password, click the page in the “Install Certificate” button. To be secure at this time a verification window will pop-up asks for business having the certificate number and password, come in the accurate page after the Open to go on click “Install Certificate” button to get down the certificate so that Download Installation. When motivated “Certificate successfully download the certificate application has been successfully laded.” When prompted, that we have successfully utilized for a digital certificate.
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