Converting method for character string and method for forming and identifying intelligent net service card

Abstract

The invention relates to a character string conversion method and an intelligent network service card generation and authentication method. The conversion method is to convert non-printable characters into printable characters by adding an ASCII code value to each half byte. Store said printable string in a database. The generation method includes: generating the card number and the original password of the business card; encrypting the original password using the algorithm of the data encryption standard and converting the encrypted result to generate a storable encrypted password; storing the card number and the storable encrypted password in the database . The authentication method includes: extracting the card number and password from the business request message; encrypting the password using a data encryption standard algorithm and converting the encrypted result to generate a storable encrypted password; looking up the corresponding password in the database according to the card number, and Compare with the encrypted password that can be stored, if they are the same, the authentication is successful. The invention introduces DES encryption into the generation and authentication mechanism of the intelligent network service card, thereby improving the security of the password information.

Description

technical field [0001] The invention relates to the technical field of wireless communication, in particular to a character string conversion method and an intelligent network service card generation and authentication method. Background technique [0002] The intelligent network is a telephone network architecture that separates the business logic from the switching equipment, and does not need to redesign the switch while adding new services. Some services of the intelligent network are implemented based on service cards, such as prepaid card services, postpaid card services, and credit card services. Taking prepaid cards as an example, in prepaid services, users buy a prepaid card with a fixed face value in advance. Fee card, when he initiates a call, the system must authenticate the service card owned by the user, and the call can only be allowed to continue normally after the authentication is successful. During the call, the system charges in real time, and the fee is...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a conversion method of a character string, convert by adding an ASCII code value to every half byte of a non-printable character string, generate a printable character string, and convert the printable character string The character strings are stored in the database to solve the problem that text information containing unprintable characters cannot be stored in the database in the prior art

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