JPS58154040A - Method for inhibiting use of charged program - Google Patents

Abstract

PURPOSE:To inhibit copying a charged program for the foul use, by ciphering the program with designated codes and to supply the program in showing that this program is charged, and then decoding the program by the user with the codes related to the designated ones. CONSTITUTION:A program feeder (a) ciphers a program read out of a program library 1 at a processing part 3 and with use of a specific code 2 (e.g., A) which is assigned to the user. Then a flag region is newly set up to show that the program is charged, and this program is recorded to a magnetic tape 4. A program user (b) detects a code A' out of the tape 4 at a register processing part 5 and with use of a user code B which has a fixed relation with the code A and compares it with the code A of the tape 4. Then the user (b) decodes 9 the program stored in a program library 7 if the coincidence is obtained between codes A and A'. The decoded program is loaded to a recorder 10. It is impossible to perform decoding 9 when no coincidence is obtained between A and A'. Thus the use of the program is impossible unless the relation is made clear between codes A and B, although the program is copied for the foul use and used at a different place.

Description

[Detailed Description of the Invention] Technical Field of the Invention The present invention relates to a method for distributing a paid program that prohibits other unqualified persons from using the paid program when a program creator supplies the paid program. Technical Background: A program is required to operate an electronic computer system, and the development of this program requires a large amount of man-hours and expenses. Therefore, programs developed and created for specific purposes are provided to users for a fee. If this paid program is copied or ported and used by unqualified people, the interests of the program creator will be seriously damaged and the paid program will lose its meaning.

((3) Problems with the prior art However, in order to deal with the above problems, in the past, recitation information is given to each of the specific program and the information processing device, and when the recitation information of each is compared and matches, a specific program is used. However, this method has the disadvantage that it is not sufficient to prohibit the use of specific 10 ghum, so there is a method of prohibiting the use of paid blocks that is operationally convenient and effective. was requested.

B) Purpose of the Invention The purpose of the present invention is to provide a method for prohibiting the use of paid programs, which prohibits the use of paid programs in view of the above-mentioned conventional situation, and allows a specified engineer to release this prohibition when necessary. be.

(θ) Structure of the Invention Briefly stated, this invention encrypts a paid program based on a specified code, sets a flag area in the program indicating that it is a paid program, and registers it in the program live free. When executing the program, a code corresponding to the above code is specified, and the state of the flag area is set depending on whether the codes match or do not match, and when the program is loaded into the main memory, the program is decoded according to the state of the flag area taK. It is characterized by controlling.

(1) Embodiment of the Invention The figure is a block diagram showing an embodiment of a paid program usage prohibition method to which this invention is applied, and l is a
Leipfuri, 2 and 6 are user codes, B is a paid program processing unit, 4 is a magnetic tape 6 is Tosori Asahi II,
7 is user life free, 8 is program load section,
9 is a decoding unit, and io is a main storage device.

The upper part (to) and the lower part (to) of the dashed-dotted line in the figure indicate the program supplier and the user side, respectively. When a paid program is stored on the magnetic tape 4 and provided to the user, the Delgram supplier is the program supplier. LiveFuri 1 extracts the sibling program and inputs it to the paid program processing section 8. At this time, a user code 2, for example code A, assigned to the user to be provided is input into the paid program processing unit 8. The paid program processing unit 8 newly establishes a flag area indicating that the program is a paid program in a predetermined dark place within 10 minutes, and
The desired program is encrypted based on the input code A to create a paid program and stored on the magnetic tape 4. Encryption is, for example, converting bit information for each specific bit.

On the user side, input is made to the registration processing unit HC in order to register this paid program in the user program Live Free 7. At this time, a user code, for example code B, is input to the color registration processing section 5. This code B corresponds to the code A mentioned above. The registration processing section 6 has a function of converting code B into code A, and compares the converted code with code A of the magnetic tape 4, and if they are equal, writes Cera F, that is, 11', into the 7 puffer region of the magnetic tape 4. The two codes are compared and if they are different, the flag area is reset, that is, O' is written and the program is stored in the user program library 7. This user program is transferred to the main storage device 1 via the program load section 8 in response to a request from the user program Live Free 7.
0, the program loading unit 8 detects %t"o' in the flag area mentioned above and reads %t"o'.
If it is l#, the decoder 9 decodes the program, converts it into the original program, and loads it into the storage device IO.

If the flag area is 10', it is loaded into the main memory 10 without being decoded. Therefore, even if a paid program is ported or copied and used in a processing device in another location, if the relationship between user hoods A and B is not clear and cannot be understood, the flag area becomes 10' and is encrypted without being decoded. Since the program is stored in the main memory IOK, the program cannot perform the intended procedure and use of the paid program is prohibited.

Furthermore, since the program supplier knows the relationship between codes A and B, it can easily cancel the prohibition of paid programs at the user's request.

(2) Effects of the Invention According to the invention as described above, even if a paid program is ported, its use is prohibited, and a specific engineer can release the prohibited sound when necessary, which is a great advantage in the operation of paid programs. It's large.

[Brief explanation of the drawing]

The figure is a block diagram showing an embodiment of a paid program use termination method to which the present invention is applied. 2 and 6 are user codes, 8 is a paid program processing section, 5 is a registration processing section, 8 is a loading section, and 9 is a decoding section.

Claims (1)

[Claims] A paid program is encrypted based on a specified code, and 7 puffer flags indicating that it is a paid program are set in its grograph, and when it is registered in the program, the code is encrypted. The corresponding code is specified and 9 codes match. Set the shape of the fufugu region according to the discrepancy. A method for prohibiting the use of a paid program, characterized in that decoding of the program is controlled according to the state of a flag area when the program is loaded from a program library into a main storage device.