TWI602079B - Identification of the method of generating data - Google Patents

Description

Method of generating identification data

The present invention relates to a method for generating identification data, and more particularly to a method for generating identification data for identifying a computer device on a network.

In the era of online advertising boom, manufacturers are increasingly concerned about whether their marketing budget is spent on the knife, and whether online advertising is accurately targeted to the target audience. On the other hand, today's operating systems and browsers are increasingly paying more attention to user privacy. A small text file (Cookie) is a type of material used to identify a user's identity on a website and store it on the user's side. At present, mainstream Internet-based vehicles (such as smart phones) use the specification for prohibiting third-party cookies from being written for privacy. In addition, users often browse the web in a seamless mode, which makes it difficult to identify and track users. Network behavior.

The conventional identification data is generated by detecting the software information of the operating system, or adding part of the hardware information as the operation dimension, that is, as the input data, and encrypting with the MD5 Message-Digest Algorithm. The resulting result string is used as the identification data of the corresponding network user. In more detail The MD5 message digest algorithm is a Cryptographic Hash Function that can input a variable length string and output a fixed length 128 bit string algorithm. However, when the difference between the software information or the hardware information is small, that is, the difference between the software and the hardware of the user browsing the network is small, the result string generated by the conventional method for generating the identification data will be the same, resulting in the same result. Different network users (users) are considered to be the same network user because the corresponding string results are the same. As a result, the user's network behavior cannot be correctly tracked, and the online advertisement cannot be accurately placed.

Accordingly, it is an object of the present invention to provide a method of generating a more distinctive identification material.

Therefore, the method for generating the identification data of the present invention is applicable to a first computer device and includes steps (a) to (c).

Step (a): establishing a connection between the first computer device and a second computer device.

Step (b): when the second computer browses the data stored by the first computer device by using the browser, the first computer device detects and receives a software information related to the second computer device and a hard Body information.

Step (c): performing the software information and the hardware information by using the Canvas element (Element) and the MD5 message digest algorithm in sequence by the first computer device The first encryption and the second encryption are performed, and a pair of identification data corresponding to the second computer device is generated.

In some implementations, in step (c), the first computer device draws a string of content corresponding to the software information and the hardware information into an image by using a fillText instruction of the Canvas, and obtains a pair A coded content of the image should be used as a result of the first encryption.

In some implementations, in step (c), the first computer device performs a second encryption on the encoded content, the software information, and the hardware information by using an MD5 message digest algorithm to generate The identification data.

In some implementations, in step (b), the software information includes a browser name, a name of a working system, a name of a plurality of installed fonts, a Chinese type, a time zone value, At least one of a small text file (cookie) write setting, a plug-in switch setting, and a display unit driver data.

In some implementations, in step (b), the hardware information includes at least one of a resolution of a screen, a number of cores of a central processing unit (CPU), and a model of a display unit.

In some implementations, wherein in step (c), the identification data is a 128-bit hash value.

The effect of the present invention is that the second computer is used by the first computer device The software information and the hardware information of the device are encrypted twice by the Canvas element and the MD5 message digest algorithm to obtain identification data with higher discrimination than the prior art, to identify or track different uses. By.

S1~S3‧‧‧ steps

Other features and advantages of the present invention will be apparent from the embodiments of the present invention, wherein: FIG. 1 is a flow chart illustrating an embodiment of a method of generating identification data of the present invention.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same reference numerals.

Referring to FIG. 1, an embodiment of a method for generating identification data of the present invention is applicable to a first computer device and a second computer device, and includes steps (a) to (c). The first computer device provides website or webpage information, and the second computer device can establish a connection with the first computer device via the network, so that a user operating the second computer device can use the second computer device The installed software (such as a browser) browses the website or webpage information provided by the first computer device. The first computer device is, for example, a server, and the second computer device is, for example, a desktop computer, a notebook computer, and a tablet. Computers, a smart phone, etc., are not limited to this.

In step (a), the first computer device establishes a connection with a second computer device.

In the step (b), when the second computer device browses the data stored in the first computer device by using the browser, the first computer device detects and receives a software information related to the second computer device and A hard body of information. More specifically, the software information includes a browser name, a name of an operating system, a name of a plurality of installed fonts, a Chinese type, a time zone value, and a write setting of a small text file (Cookie). At least one of a setting of a plug-in switch and a driver data of a display unit. The hardware information includes at least one of a resolution of a screen, a number of cores of a central processing unit (CPU), and a model of a display unit.

In step (c), the first computer device sequentially performs the first encryption and the second encryption on the software information and the hardware information by using the Canvas element (Element) and the MD5 message digest algorithm, and generates a pair of responses. Identification data of the second computer device. The Canvas element is part of HTML5 that allows the script language to dynamically render a bitmap image (Bitmap Image).

In more detail, the first computer device draws a string of content corresponding to the software information and the hardware information into an image by using a fillText instruction of the Canvas, and obtains an encoded content corresponding to the image as the first The result of one encryption.

For example, the string content is "Firefox-Windows 7|32bits -24|1680|1050|1680|1010-Agency FB|Aharoni|. . . Latin-lang=zh-TW-GMT: 8-false-Shockwave Flash-NPSWF32.dll-2-ANGLE(Intel(R)HD Graphics Direct3D11)-Google Inc.", where "Firefox" is the name of the browser. "Windows 7|32bits" is the name of the operating system, "24|1680|1050|1680|1010" is the resolution of the screen, and "Agency FB|Aharoni|...Latin" is the name of multiple installed fonts. "lang=zh-TW" is a Chinese type (such as Traditional Chinese), "GMT:8" is a time zone value, and "false" is a small text file (Cookie) write setting (if no), "Shockwave Flash-NPSWF32" .dll" is the setting of the plug-in switch, "2" is the number of cores of the central processing unit (such as 2), "ANGLE (Intel(R)HD Graphics Direct3D11)" is the model of the display unit (such as display card), "Google Inc. is the driver data for the display unit.

According to the foregoing example, the image is a bitmap image, and the content displayed by the image is the content of the string, and the encoded content corresponding to the image is iVBORw0KG. . . Wait for a long list of garbled characters as a result of the first encryption. That is to say, the encoded content will be different according to the difference between the software information and the hardware information, thereby generating different first encryption results.

The first computer device then performs the second encryption on the encoded content (ie, the result of the first encryption), the software information, and the hardware information by using the MD5 message digest algorithm, thereby generating the identification data. The identification data is a 128-bit miscellaneous Hash Value. In the foregoing example, the identification material is c9396fc46af473107196bb311c26a154.

In summary, the method for generating the identification data of the present invention first encrypts the software information and the hardware information of the second computer device of the user, and first encrypts the Canvas element, and then uses the MD5 message digest algorithm to deal with the first The result of the secondary encryption is added to the software information and the hardware information for the second encryption to generate the identification data, so that different users' computer devices are less different between the software and hardware than the conventional technology. The identification data having the difference can be obtained, and the degree of discrimination can be improved, so that the object of the present invention can be achieved.

However, the above is only the embodiment of the present invention, and the scope of the invention is not limited thereto, and all the simple equivalent changes and modifications according to the scope of the patent application and the patent specification of the present invention are still Within the scope of the invention patent.

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Claims (5)

A method for generating identification data is applicable to a first computer device and includes the following steps: (a) establishing a connection between the first computer device and a second computer device; and (b) browsing the second computer Detecting and receiving a piece of software information and a piece of hardware information relating to the second computer device by the first computer device when viewing the data stored by the first computer device; and (c) by the first The computer device sequentially performs the first encryption and the second encryption on the software information and the hardware information by using the Canvas element (Element) and the MD5 message digest algorithm, and generates a pair of identification data corresponding to the second computer device; In the step (c), the first computer device uses the fillText instruction of the Canvas to draw a string of content corresponding to the software information and the hardware information into an image, and obtain an encoded content corresponding to the image. As a result of the first encryption. The method for generating identification data according to claim 1, wherein in step (c), the first computer device performs the first execution of the encoded content, the software information, and the hardware information by using an MD5 message digest algorithm. Secondary encryption to generate the identification material. The method for generating identification data according to claim 2, wherein in step (b), the software information includes a browser name, a name of a working system, a name of a plurality of installed fonts, and a Chinese language. Type, time zone value, write setting of a small text file (Cookie), setting of a plug-in switch At least one of the driver data of the display unit and the display unit. The method for generating identification data according to claim 3, wherein in step (b), the hardware information includes a resolution of a screen, a number of cores of a central processing unit (CPU), and a model of a display unit. At least one of them. The method for generating identification data according to claim 4, wherein in the step (c), the identification data is a 128-bit hash value.