Data encryption method and device of VSIM card

A data encryption and data block technology, applied in the field of cryptography, can solve problems such as poor versatility, low security, and easy cracking, and achieve the effect of low cost, high security, and good versatility

Active Publication Date: 2018-06-12
广东树米科技有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The first two solutions are simple and easy to control, but they are less secure and easy to crack; the third solution requires an additional SE chip. Although the security is improved, it increases the cost and has poor versatility

Method used

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  • Data encryption method and device of VSIM card
  • Data encryption method and device of VSIM card
  • Data encryption method and device of VSIM card

Examples

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Embodiment Construction

[0061]Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present disclosure. Rather, they are merely examples of apparatuses and methods consistent with aspects of the present disclosure as recited in the appended claims.

[0062] figure 1 It is a flow chart of a method for encrypting data of a VSIM card according to an exemplary embodiment. Such as figure 1 As shown, the method includes step 100 and step 101.

[0063] In step 100, a first encryption operation is performed according to the first key and the unique device identifier to obtain a first encrypted result, wherein the unique device identifier...

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PUM

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Abstract

The invention relates to a data encryption method and device of a VSIM card, which are characterized by conducting a first encoding operation according to a first key and an only mark loaded with theVSIM card of the device, and obtaining a first encoding result; then conducting a second encoding operation according to the first encoding result and data to be encoded, and obtaining a second encoding result. The data to be encoded which is loaded with the VSIM card device is associated with the only mark of the device so that the second encoding result cannot be declassified when other hardwaredevices cannot obtain the only mark of the device, and therefore the data to be encoded is effectively prevented from being cloned by other devices. Meanwhile, the encryption algorithm forms multipleencryption, which increases decryption difficulties and effectively prevents cipher text from being declassified. In addition, no extra chip is needed so that cost is low, safety is high, and generality is sound.

Description

technical field [0001] The present disclosure relates to encryption technology, in particular to a data encryption method and device for a VSIM card. Background technique [0002] With the development of thinner, lighter and smaller smart devices, and in order to avoid re-opening the SIM (Subscriber Identification Module, Subscriber Identification Module) card slot in the device, the application of virtual SIM technology was born. Existing virtual SIM technologies can be roughly divided into three types: Soft SIM, VSIM, and eSIM. Soft SIM relies on mobile phone manufacturers' respective mobile phone systems; VSIM system is less dependent, has a wider coverage, and the technology is more mature; eSIM is a virtual SIM solution that terminal manufacturers respect after 16 years, but due to industrial ecology and commercial barriers Challenges, slow development, and few commercial cases, but in the long run, eSIM will be a development trend. [0003] Comparing the three techno...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/14H04L9/08H04L29/06H04W12/02
CPCH04L9/0866H04L9/14H04L63/0478H04W12/02
Inventor 陈海龙傅宇晨秦预
Owner 广东树米科技有限公司
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