Random number generation method and system

[0073] The first embodiment of the present invention is:

[0074] This embodiment provides a method for generating random numbers, including:

[0075] S1. Generate hardware random numbers through hardware circuits;

[0076] Among them, the hardware random number R1 is generated through the hardware circuit;

[0077] S2. Collect the value of the operating parameter during the operation of the random number generator;

[0078] Wherein, the value R4 of the operating parameter may be the system startup time, the number of system interruptions, the RTC time, etc.;

[0079] S3. Obtain the unique identifier of the hardware in the random number generator;

[0080] Wherein, the unique identifier R5 of the hardware may be a unique identifier of a hardware circuit chip or a unique identifier of a POS machine running a random number generator;

[0081] S4. Generate a first random number according to the hardware random number, the value of the operating parameter, and the unique identifier; specifically:

[0091] The second embodiment of the present invention is:

[0092] This embodiment also provides a random number generation method, including:

[0093] S1. Generate hardware random numbers through hardware circuits;

[0094] S2. Collect the value of the operating parameter during the operation of the random number generator;

[0095] S3. Obtain the unique identifier of the hardware in the random number generator;

[0096] S4. Generate a first random number according to the hardware random number, the value of the operating parameter, and the unique identifier; specifically:

[0097] S41. Extract a preset byte in the hardware random number to obtain a second random number;

[0098] S42. Use the second random number as an input of a preset random number generation function to generate a third random number;

[0099] S43. Exclusive OR the second random number and the third random number to obtain a fourth random number;

[0100] S44. Generate the first random number according to the fourth random

[0101] The third embodiment of the present invention is:

[0102] Such as image 3 As shown, this embodiment provides a random number generation system, including:

[0103] The first generation module 1 generates hardware random numbers through hardware circuits; the acquisition module 2 acquires the values ​​of operating parameters during the operation of the random number generator; the acquisition module 3 acquires the unique identifier of the hardware in the random number generator; the second generation module 4 Generating a first random number according to the hardware random number, the value of the operating parameter, and the unique identifier;

[0104] Wherein, the second generation module 4 includes a first generation unit 41, an encryption unit 42, and an update unit 43;

[0105] The first generating unit 41 generates an initial vector and an initial key according to the hardware random number, the value of the operating parameter, and the unique identifier; specifically, the