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Data encryption method and device for vsim card

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

Active Publication Date: 2021-12-17
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 for vsim card
  • Data encryption method and device for vsim card
  • Data encryption method and device for 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 described above.

[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 is the unique...

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PUM

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Abstract

The present disclosure relates to a data encryption method and device for a VSIM card. The present disclosure obtains a first encryption result by performing a first encryption operation according to a first key and a unique identifier of a device loaded with a VSIM card, and according to the first encryption A second encryption operation is performed on the result and the data to be encrypted to obtain a second encryption result. Associate the data to be encrypted loaded with the VSIM card device with the unique identifier of the device, so that other hardware devices cannot crack the second encryption result if they cannot obtain the unique identifier of the device, thereby effectively preventing other devices from cloning the encrypted data. . At the same time, the encryption algorithm forms multiple encryptions, which increases the difficulty of decryption and effectively prevents the ciphertext from being cracked. And no additional SE chip is needed, the cost is low, the security is high, and the versatility is good.

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 Patents(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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