Data:2009-12-12 2:34
Category: Money tips Release Date: 2006-03-25
Digital certificate is a network communication identity information of the parties to sign a series of communications data, and its role is similar to real-life identity cards. It is issued by an authority, people can use it to identify the contacts between each other's identity. Commonly used format of digital certificates X.509 international standard. A standard X.509 digital certificate contains the following elements:
Version of the certificate information;
The serial number of the certificate, each certificate has a unique certificate serial number;
The signature algorithm used by the certificate;
The certificate issuer name, and naming rules commonly used X.400 format;
The validity of the certificate, the certificate is now commonly used common UTC time format, and its time range of 1950-2649;
The name of the certificate owner, naming rules are generally used X.400 format;
The certificate owner's public key;
The certificate issuer of the certificate's signature.
We can use digital certificates, through the use of symmetric and asymmetric cryptography and other cryptographic techniques to establish a set of strict identity authentication system, so as to ensure: Information In addition to the sender and receiver parties themselves are not stealing other people; information during transmission does not been tampered with; sender through a digital certificate to confirm the identity of the recipient; their own information about the sender can not deny.
