Encryption method of application software
An encryption method for protecting application software is to first fetch a unique identification code of the application software at the user site. Then, transfer the unique identification code to a server for registration. The server operates according to the unique identification code and the current date information and generates a starting password. The starting password is transferred to the user for starting the application software. The encryption is made by applying a password from the website server based on a unique identification code and on-line verification.
1. An encryption method of application software through applying a password from a website server based on a unique identification code and on-line verification, comprising the steps of:
fetching a unique identification code of said application software at a user site;
transferring said unique identification code to a server for registration;
operating at said server according to said unique identification code and a date information and generating a starting password;
transferring said starting password to said user;
analyzing said starting password and verifying validity of said password, comprising the steps of:
extracting date information in said password;
comparing deviation of said date information to current date; and
determining a valid time information when said deviation is less than a predetermined time, and determining an invalid time information when said deviation is larger than said predetermined time; and
starting said application software with said starting password at said user site.
2. The encryption method of claim 1 wherein said step of registration at said sever comprises a step of judging whether said unique identification code being used over a predetermined times.
3. The encryption method of claim 1 wherein said application software is a marketed software.
4. The encryption method of claim 1 wherein said application software is a network downloadable software.
5. The encryption method of claim 1 wherein said date information is a system current date at said website server.
6. The encryption method of claim 1 wherein said step of verifying validity of said password further comprises the step of checking validity of said identification code.
7. The encryption method of claim 1 wherein said unique identification code is chosen from the group consisting of software serial number, user's hard disk number and user's network card number.