An optical testing method for cryptographic products

Abstract

The present invention discloses an optical testing method for cryptographic products, which relates to the field of cryptographic product testing. The cryptographic product to be tested undergoes a protective film test, a light intensity test, and a stability test in a predetermined order. If any of the tests fails, the cryptographic product fails the test. The light intensity test includes: selecting a standard light source, setting different light intensities, and continuously irradiating the hardware cryptographic product at a predetermined angle for a predetermined time; detecting whether there is any color change in the protective film when illuminated; if the color of the protective film changes, outputting a test failure and recording the degree and location of the change; if the color of the protective film does not change, outputting a test pass. The present invention achieves the beneficial effect of solving the problem of reliability testing of cryptographic products under certain lighting conditions.

Description

Technical Field

[0001] The present invention relates to the field of cryptographic products, and in particular to an optical testing method for cryptographic products. Background Art

[0002] Under certain high temperature and light conditions, the hardware coating protecting sensitive cryptographic parameters, known as the protective film on cryptographic products, can be damaged, leading to security issues. Existing testing methods don't cover this issue. However, currently, only protective measures are required for cryptographic products under extremely high temperature and voltage conditions. There is no comprehensive, systematic, and universal testing method for light reliability, particularly one applicable to all types of cryptographic products.

[0003] In view of the deficiencies of the prior art, the present invention proposes an optical testing method for cryptographic products. Summary of the Invention

[0004] The purpose of the present invention is to overcome the shortcomings of the prior art and provide an optical testing method for cryptographic products, which solves the problem of reliability detection of cryptographic products under certain lighting conditions.

[0005] An optical testing method for cryptographic products, comprising:

[0006] For the password products to be tested, the protective film test, light intensity test and stability test are carried out in the preset order. If any of the tests fails, the password product will not pass the test;

[0007] The light intensity detection includes:

[0008] Select a standard light source, set different light intensities, and continuously illuminate the hardware password product at a preset angle for a preset time; detect whether there is any color change in the protective film after exposure to light

[0009] If the color of the light protection film changes, the output test is unqualified, and the degree of change and the location of the change of the light protection film are recorded;

[0010] If the color of the protective film does not change when exposed to light, the output test is qualified.

[0011] Furthermore, the cryptographic products to be tested include: hardware cryptographic products, software cryptographic products, solid-state cryptographic products, hybrid cryptographic products and optical quantum cryptographic products.

[0012] Furthermore, the different light intensities include: 10 Lux, 50 Lux, 100 Lux, 500 Lux and 1000 Lux.

[0013] Furthermore, the preset angle includes: the light source irradiates continuously at a direction of 90° perpendicular to the upper surface of the hardware cryptographic product, software cryptographic product, solid-state cryptographic product, hybrid cryptographic module and optical quantum cryptographic product.

[0014] Furthermore, the preset angle also includes: the light source irradiates the outer surface of the hardware cryptographic product, software cryptographic product, solid-state cryptographic product, hybrid cryptographic module and optical quantum cryptographic product in a rotating direction from 0° to 360°.

[0015] Furthermore, the preset time is: 5 minutes or 180 minutes. When the preset time is 180 minutes, the irradiation direction of the light source rotates at a speed of 10° in 5 minutes.

[0016] Furthermore, the protective film detection includes:

[0017] Check whether the light protection film of the password product to be tested is intact:

[0018] If there is any defect, the test fails;

[0019] If intact, perform light intensity test.

[0020] Furthermore, the stability test includes:

[0021] Under lighting conditions, check whether the output data, random numbers and photon frequency of the cryptographic product to be tested are within the normal range;

[0022] If any of the output data, random number or photon frequency exceeds the specified value range, the output test fails and the corresponding test data is recorded;

[0023] If the output data, random number and photon frequency do not exceed the specified value range deviation, the test passes.

[0024] The present invention has the following advantages:

[0025] (1) The present invention performs optical testing on the password product according to preset rules, sets different illumination intensities, different preset angles, i.e., illumination modes, and preset times corresponding to different preset illumination angles; it can systematically perform complete detection of the optical test direction of the password product to obtain the reliability test results of the relevant illumination;

[0026] (2) The present invention is applicable to various types of cryptographic products at the current stage, including software cryptographic products, hardware cryptographic products, solid-state cryptographic products, hybrid cryptographic products, and optical quantum cryptographic products. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 A diagram showing the steps of the method of the present invention. DETAILED DESCRIPTION

[0028] The present invention will be further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0029] It should be noted that the directions or positional relationships indicated by “left”, “right”, etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the invented product is usually placed when in use, or are the directions or positional relationships commonly understood by those skilled in the art. Such terms are only used to facilitate the description of the present invention and simplify the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0030] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.

[0031] like Figure 1 As shown, the present invention proposes an optical testing method for cryptographic products, comprising:

[0032] The cryptographic products to be tested are subjected to protective film testing, light intensity testing, and stability testing in a preset order. If any of the tests fails, the cryptographic product fails the test. The cryptographic products to be tested include: hardware cryptographic products, software cryptographic products, solid-state cryptographic products, hybrid cryptographic products, and optical quantum cryptographic products.

[0033] The present invention is applicable to various types of cryptographic products at the current stage, including software cryptographic products, hardware cryptographic products, solid-state cryptographic products, hybrid cryptographic products, and optical quantum cryptographic products. It has good universality and is suitable for testing various types of cryptographic products.

[0034] Optical testing methods include:

[0035] S1. Test the protective film of the password product to be tested;

[0036] Protective film testing includes:

[0037] Check whether the light protection film of the password product to be tested is intact:

[0038] If there is any defect, the test fails;

[0039] If intact, perform light intensity test.

[0040] S2. Perform light intensity test on the password product to be tested;

[0041] Light intensity detection includes:

[0042] Select a standard light source, set different light intensities, and continuously illuminate the hardware password product at a preset angle for a preset time; detect whether there is any color change in the protective film after exposure to light

[0043] If the color of the light protection film changes, the output test is unqualified, and the degree of change and the location of the change of the light protection film are recorded;

[0044] If the color of the protective film does not change when exposed to light, the output test is qualified and a stability test is performed.

[0045] S3. Conduct stability testing on the cryptographic products to be tested;

[0046] Stability testing includes:

[0047] Under lighting conditions, check whether the output data, random numbers and photon frequency of the cryptographic product to be tested are within the normal range;

[0048] If any of the output data, random number or photon frequency exceeds the specified value range, the output test fails and the corresponding test data is recorded;

[0049] If the output data, random number and photon frequency do not exceed the specified value range deviation, the test passes.

[0050] By performing protective film testing, light intensity testing, and stability testing on cryptographic products, the reliability of the cryptographic products to be tested can be systematically ensured.

[0051] In some preferred embodiments, the different light intensities include: 10 Lux, 50 Lux, 100 Lux, 500 Lux and 1000 Lux.

[0052] In some preferred embodiments, the preset angle is: the light source irradiates continuously at 90° perpendicular to the upper surface of the hardware cryptographic product, the software cryptographic product, the solid-state cryptographic product, the hybrid cryptographic module, and the optical quantum cryptographic product;

[0053] At this time, the preset time is: 5 minutes.

[0054] In some preferred embodiments, the preset angle is: the light source irradiates the outer surface of the hardware cryptographic product, the software cryptographic product, the solid-state cryptographic product, the hybrid cryptographic module, and the optical quantum cryptographic product in a direction rotating from 0° to 360°;

[0055] At this time, 180 minutes, when the preset time is 180 minutes, the irradiation direction of the light source rotates at a speed of 10° every 5 minutes.

[0056] The above embodiments merely represent preferred implementations, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art will be able to make various modifications and improvements without departing from the scope of the present invention, and these modifications and improvements are all within the scope of protection of the present invention.

Claims

1. An optical testing method for cryptographic products, comprising: For the password products to be tested, the protective film test, light intensity test and stability test are carried out in the preset order. If any of the tests fails, the password product will not pass the test; The light intensity detection includes: Select a standard light source, set different light intensities, and continuously illuminate the password product at a preset angle for a preset time; detect whether there is any color change in the protective film after exposure to light; If the color of the light protection film changes, the output test is unqualified, and the degree of change and the location of the change of the light protection film are recorded; If the color of the protective film does not change when exposed to light, the output test is qualified; The cryptographic products to be tested include: hardware cryptographic products, software cryptographic products, solid-state cryptographic products, hybrid cryptographic products and optical quantum cryptographic products; The different light intensities include: 10 Lux, 50 Lux, 100 Lux, 500 Lux and 1000 Lux; The preset angle includes: the light source irradiates continuously at 90° perpendicular to the upper surface of the hardware cryptographic product, software cryptographic product, solid-state cryptographic product, hybrid cryptographic product and optical quantum cryptographic product; At this time, the preset time is: 5 minutes; Alternatively, the preset angle includes: the light source irradiating the outer surface of the hardware cryptographic product, software cryptographic product, solid-state cryptographic product, hybrid cryptographic product and optical quantum cryptographic product in a rotating manner from 0° to 360°; At this time, the preset time is: 180 minutes, and the direction of the light source rotates at a speed of 10° every 5 minutes; The protective film detection includes: Check whether the light protection film of the password product to be tested is intact: If there is any defect, the test fails; If it is intact, then conduct light intensity test; The stability test includes: Under lighting conditions, check whether the output data, random number and photon frequency of the cryptographic product to be tested are within the normal range; If any of the output data, random number or photon frequency exceeds the specified value range, the output test fails and the corresponding test data is recorded; If the output data, random number and photon frequency do not exceed the range deviation required by the specified value, the test passes.

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