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This article mainly introduces "what is network stk". In daily operation, I believe that many people have doubts about what is network stk. The editor consulted all kinds of materials and sorted out simple and easy-to-use methods of operation. I hope it will be helpful for you to answer the doubts about "what is network stk?" Next, please follow the editor to study!

STK is the abbreviation of "SIM Tool Kit", that is, "user identification application development tool". It contains a set of instructions for the interaction between the mobile phone and the SIM card, which enables the SIM card to run small applications in the card to achieve the purpose of value-added services.

The operating environment of this tutorial: windows7 system, Dell G3 computer.

STK is the abbreviation of SIM Tool Kit. That is, "user identification application development tool". It contains a set of instructions for the interaction between the mobile phone and the SIM card, which enables the SIM card to run small applications in the card to achieve the purpose of value-added services.

The reason why it is called a mini-application is that due to the limited space of the SIM card, the applications in the STK card are small and easy to use. At present, the mainstream STK cards provided by the market are mainly 16K and 32K; 64K cards are also actively promoted in the market.

The difference between STK card and ordinary SIM card is that the application is solidified in STK card. Provide users with a text menu interface through software activation. This text menu interface allows users to retrieve information and even trade with simple keystrokes.

For example, if the end user wants to query the weather forecast, in the absence of STK value-added service, the user needs to manually edit the short message "TQ 01010" and then send the short message to the 168service platform. In this way, users need to remember that "TQ" is the command code of the weather forecast and the 168service platform number. In fact, there are many command codes, such as "GP" for stock query, "HF" for telephone charge query, and so on. Therefore, it is unrealistic and inconvenient for users to remember all the command codes.

STK provides menu cues such as "Weather Forecast" through programs solidified in the card, so that users only need to enter the long-distance area code of the area they want to query to find out the weather. So that the user does not have to remember the command code and the service platform number, so as to achieve the purpose of convenience to the user.

The implementation of STK value-added service is based on the short message of GSM. Therefore, as long as it is covered by the GSM network, text message services can be provided with a wide range of services; and text short messages are cheap, charged only when they are successfully delivered, and do not include roaming fees; for the above reasons, the number of STK card users has soared, and the business model is now becoming mature.

The platform of STK card is not unified so that the STK programs developed by various manufacturers are not compatible with each other. In this way, each card vendor's application can only run on its own specific platform. This brings great inconvenience to operators. The application of JAVA technology in STK card is Java card. The technical issues related to Java cards are not discussed in this article because there is a lot of information about it. This paper only gives a brief introduction to the implementation and characteristics of STK in Jiaoqi Company.

First of all, the STK card of Jiaoqi Company fully complies with a series of specifications such as GSM11.11,GSM11.14,GSM03.08, so its usability is no different from that of other companies, and can fully meet the various needs of different operators, including information inquiry, stock trading and bank trading.

Secondly, the implementation of STK card of Jiaoqi Company is similar to that of Java card, and it is also realized by interpreter and executing bytecode in SIM card. The difference with the Java card is that the interpreter is developed independently, and the bytecode is in the proprietary format of the company.

The advantage of the STK card solution of the company is that the program design is optimized for the application of the SIM card, so the execution efficiency and space occupation of the interpreter is obviously better than that of the Java card. For the above reasons, the STK card program of Shouqi Company runs fast and can achieve more applications on cards of the same capacity. Thirdly, the STK card of Jiaoqi Company can be selectively used in combination with PKI, which is verified by the R.S.An algorithm implemented in the card. So that the use of mobile phones to engage in mobile business activities is no longer empty talk.

At this point, the study on "what is the network stk" is over. I hope to be able to solve your doubts. The collocation of theory and practice can better help you learn, go and try it! If you want to continue to learn more related knowledge, please continue to follow the website, the editor will continue to work hard to bring you more practical articles!

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