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An analysis of quality of random number generator of Flipper Zero

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flipperzero-random-number-quality

An analysis of quality of random number generator of Flipper Zero

Based on theHello World ofzmactep

Flipper Zero has a true random number generator according hisCPU datasheet :The devices embed a true RNG that delivers 32-bit random numbers generated by anintegrated analog circuit.

I'd like verify the quality of random numbers generated by theFlipper Zero

How to generate random numbers ?

Flipper Zero toolchain provides two functions to generate random numbers by using hardware generator :

uint32_t furi_hal_random_get() : to obtain 32 bits of random data
void furi_hal_random_fill_buf(uint8_t* buf, uint32_t len) : to fill a buffer of random data

Build the program

I wrote a program that generates a file filled with 256MB of random data on the SD card (/random.dat)

Assuming the toolchain is already installed, copyflipper_random directory toapplications_user

Plug yourFlipper Zero and build the program :

./fbt launch_app APPSRC=applications_user/flipper_random

The program will automatically be launched after compilation :

The generation takes about 30 minutes. The program will automatically quit after generation

If you don't want to build the program, just simply copyflipper_random.fap on yourFlipper Zero

Analysis with dieharder

With 256MB of data

dieharder is a testing and benchmarking tool for random number generators

Copy/random.dat file on your computer and launch the following command :

dieharder -a -g 201 -f random.dat

Click here to view results

   diehard_birthdays|   0|       100|     100|0.55487123|  PASSED        diehard_operm5|   0|   1000000|     100|0.79201568|  PASSED    diehard_rank_32x32|   0|     40000|     100|0.59923892|  PASSED      diehard_rank_6x8|   0|    100000|     100|0.92342072|  PASSED     diehard_bitstream|   0|   2097152|     100|0.94159229|  PASSED          diehard_opso|   0|   2097152|     100|0.00747132|  PASSED          diehard_oqso|   0|   2097152|     100|0.18263591|  PASSED           diehard_dna|   0|   2097152|     100|0.07915675|  PASSED  diehard_count_1s_str|   0|    256000|     100|0.31495403|  PASSED  diehard_count_1s_byt|   0|    256000|     100|0.69912362|  PASSED   diehard_parking_lot|   0|     12000|     100|0.82688871|  PASSED      diehard_2dsphere|   2|      8000|     100|0.44704427|  PASSED      diehard_3dsphere|   3|      4000|     100|0.52652864|  PASSED       diehard_squeeze|   0|    100000|     100|0.51781721|  PASSED          diehard_sums|   0|       100|     100|0.64623799|  PASSED          diehard_runs|   0|    100000|     100|0.99573267|   WEAK           diehard_runs|   0|    100000|     100|0.48267656|  PASSED         diehard_craps|   0|    200000|     100|0.08522731|  PASSED         diehard_craps|   0|    200000|     100|0.08212908|  PASSED   marsaglia_tsang_gcd|   0|  10000000|     100|0.00000003|  FAILED   marsaglia_tsang_gcd|   0|  10000000|     100|0.00053548|   WEAK            sts_monobit|   1|    100000|     100|0.09876225|  PASSED              sts_runs|   2|    100000|     100|0.44896009|  PASSED            sts_serial|   1|    100000|     100|0.72550312|  PASSED            sts_serial|   2|    100000|     100|0.14638226|  PASSED            sts_serial|   3|    100000|     100|0.45251237|  PASSED            sts_serial|   3|    100000|     100|0.77572552|  PASSED            sts_serial|   4|    100000|     100|0.59680397|  PASSED            sts_serial|   4|    100000|     100|0.87343622|  PASSED            sts_serial|   5|    100000|     100|0.39471355|  PASSED            sts_serial|   5|    100000|     100|0.24502794|  PASSED            sts_serial|   6|    100000|     100|0.08909655|  PASSED            sts_serial|   6|    100000|     100|0.10717243|  PASSED            sts_serial|   7|    100000|     100|0.83451597|  PASSED            sts_serial|   7|    100000|     100|0.97964565|  PASSED            sts_serial|   8|    100000|     100|0.36201175|  PASSED            sts_serial|   8|    100000|     100|0.65209729|  PASSED            sts_serial|   9|    100000|     100|0.99071115|  PASSED            sts_serial|   9|    100000|     100|0.17544767|  PASSED            sts_serial|  10|    100000|     100|0.82309444|  PASSED            sts_serial|  10|    100000|     100|0.68136773|  PASSED            sts_serial|  11|    100000|     100|0.43365875|  PASSED            sts_serial|  11|    100000|     100|0.97170671|  PASSED            sts_serial|  12|    100000|     100|0.72900319|  PASSED            sts_serial|  12|    100000|     100|0.99584984|   WEAK             sts_serial|  13|    100000|     100|0.21530249|  PASSED            sts_serial|  13|    100000|     100|0.79026626|  PASSED            sts_serial|  14|    100000|     100|0.12890705|  PASSED            sts_serial|  14|    100000|     100|0.55255830|  PASSED            sts_serial|  15|    100000|     100|0.78891114|  PASSED            sts_serial|  15|    100000|     100|0.98063270|  PASSED            sts_serial|  16|    100000|     100|0.10522510|  PASSED            sts_serial|  16|    100000|     100|0.07350635|  PASSED           rgb_bitdist|   1|    100000|     100|0.98396352|  PASSED           rgb_bitdist|   2|    100000|     100|0.72379672|  PASSED           rgb_bitdist|   3|    100000|     100|0.01351080|  PASSED           rgb_bitdist|   4|    100000|     100|0.95524449|  PASSED           rgb_bitdist|   5|    100000|     100|0.05370261|  PASSED           rgb_bitdist|   6|    100000|     100|0.44257180|  PASSED           rgb_bitdist|   7|    100000|     100|0.03501509|  PASSED           rgb_bitdist|   8|    100000|     100|0.39167067|  PASSED           rgb_bitdist|   9|    100000|     100|0.99180288|  PASSED           rgb_bitdist|  10|    100000|     100|0.82502082|  PASSED           rgb_bitdist|  11|    100000|     100|0.10809183|  PASSED           rgb_bitdist|  12|    100000|     100|0.49863013|  PASSED  rgb_minimum_distance|   2|     10000|    1000|0.59643869|  PASSED  rgb_minimum_distance|   3|     10000|    1000|0.60902822|  PASSED  rgb_minimum_distance|   4|     10000|    1000|0.32342827|  PASSED  rgb_minimum_distance|   5|     10000|    1000|0.97899401|  PASSED      rgb_permutations|   2|    100000|     100|0.02271425|  PASSED      rgb_permutations|   3|    100000|     100|0.28577729|  PASSED      rgb_permutations|   4|    100000|     100|0.68895384|  PASSED      rgb_permutations|   5|    100000|     100|0.38110847|  PASSED        rgb_lagged_sum|   0|   1000000|     100|0.00401051|   WEAK         rgb_lagged_sum|   1|   1000000|     100|0.23456397|  PASSED        rgb_lagged_sum|   2|   1000000|     100|0.01699212|  PASSED        rgb_lagged_sum|   3|   1000000|     100|0.60478263|  PASSED        rgb_lagged_sum|   4|   1000000|     100|0.04943578|  PASSED        rgb_lagged_sum|   5|   1000000|     100|0.15648198|  PASSED        rgb_lagged_sum|   6|   1000000|     100|0.12214976|  PASSED        rgb_lagged_sum|   7|   1000000|     100|0.07300513|  PASSED        rgb_lagged_sum|   8|   1000000|     100|0.71916719|  PASSED        rgb_lagged_sum|   9|   1000000|     100|0.22802820|  PASSED        rgb_lagged_sum|  10|   1000000|     100|0.00123661|   WEAK         rgb_lagged_sum|  11|   1000000|     100|0.29959817|  PASSED        rgb_lagged_sum|  12|   1000000|     100|0.25961032|  PASSED        rgb_lagged_sum|  13|   1000000|     100|0.11422352|  PASSED        rgb_lagged_sum|  14|   1000000|     100|0.16906362|  PASSED        rgb_lagged_sum|  15|   1000000|     100|0.00000005|  FAILED        rgb_lagged_sum|  16|   1000000|     100|0.27559901|  PASSED        rgb_lagged_sum|  17|   1000000|     100|0.22432129|  PASSED        rgb_lagged_sum|  18|   1000000|     100|0.28340080|  PASSED        rgb_lagged_sum|  19|   1000000|     100|0.38629680|  PASSED        rgb_lagged_sum|  20|   1000000|     100|0.44523026|  PASSED        rgb_lagged_sum|  21|   1000000|     100|0.16320412|  PASSED        rgb_lagged_sum|  22|   1000000|     100|0.29625362|  PASSED        rgb_lagged_sum|  23|   1000000|     100|0.31001352|  PASSED        rgb_lagged_sum|  24|   1000000|     100|0.04436115|  PASSED        rgb_lagged_sum|  25|   1000000|     100|0.02613351|  PASSED        rgb_lagged_sum|  26|   1000000|     100|0.05809093|  PASSED        rgb_lagged_sum|  27|   1000000|     100|0.80853774|  PASSED        rgb_lagged_sum|  28|   1000000|     100|0.10499849|  PASSED        rgb_lagged_sum|  29|   1000000|     100|0.01814743|  PASSED        rgb_lagged_sum|  30|   1000000|     100|0.32979792|  PASSED        rgb_lagged_sum|  31|   1000000|     100|0.00085729|   WEAK         rgb_lagged_sum|  32|   1000000|     100|0.02647133|  PASSED       rgb_kstest_test|   0|     10000|    1000|0.08770174|  PASSED       dab_bytedistrib|   0|  51200000|       1|0.49320605|  PASSED               dab_dct| 256|     50000|       1|0.90718786|  PASSED  Preparing to run test 207.  ntuple = 0        dab_filltree|  32|  15000000|       1|0.52041788|  PASSED          dab_filltree|  32|  15000000|       1|0.97976842|  PASSED  Preparing to run test 208.  ntuple = 0       dab_filltree2|   0|   5000000|       1|0.61874327|  PASSED         dab_filltree2|   1|   5000000|       1|0.74648222|  PASSED  Preparing to run test 209.  ntuple = 0        dab_monobit2|  12|  65000000|       1|0.65116997|  PASSED

2 tests have failed and 6 tests are marked as weak

The same test has been done with256MB of/dev/urandom data from aLinux computer :

Click here to view results

   diehard_birthdays|   0|       100|     100|0.06228484|  PASSED        diehard_operm5|   0|   1000000|     100|0.59723602|  PASSED    diehard_rank_32x32|   0|     40000|     100|0.43907555|  PASSED      diehard_rank_6x8|   0|    100000|     100|0.40014624|  PASSED     diehard_bitstream|   0|   2097152|     100|0.17287854|  PASSED          diehard_opso|   0|   2097152|     100|0.00246277|   WEAK           diehard_oqso|   0|   2097152|     100|0.09822842|  PASSED           diehard_dna|   0|   2097152|     100|0.11161138|  PASSED  diehard_count_1s_str|   0|    256000|     100|0.49999119|  PASSED  diehard_count_1s_byt|   0|    256000|     100|0.23362439|  PASSED   diehard_parking_lot|   0|     12000|     100|0.80220017|  PASSED      diehard_2dsphere|   2|      8000|     100|0.94573686|  PASSED      diehard_3dsphere|   3|      4000|     100|0.74577481|  PASSED       diehard_squeeze|   0|    100000|     100|0.14916488|  PASSED          diehard_sums|   0|       100|     100|0.06679183|  PASSED          diehard_runs|   0|    100000|     100|0.98216693|  PASSED          diehard_runs|   0|    100000|     100|0.68559357|  PASSED         diehard_craps|   0|    200000|     100|0.61910448|  PASSED         diehard_craps|   0|    200000|     100|0.05755020|  PASSED   marsaglia_tsang_gcd|   0|  10000000|     100|0.00000001|  FAILED   marsaglia_tsang_gcd|   0|  10000000|     100|0.00095699|   WEAK            sts_monobit|   1|    100000|     100|0.69389179|  PASSED              sts_runs|   2|    100000|     100|0.16671354|  PASSED            sts_serial|   1|    100000|     100|0.68748875|  PASSED            sts_serial|   2|    100000|     100|0.85633578|  PASSED            sts_serial|   3|    100000|     100|0.94268391|  PASSED            sts_serial|   3|    100000|     100|0.07086450|  PASSED            sts_serial|   4|    100000|     100|0.39714210|  PASSED            sts_serial|   4|    100000|     100|0.31252989|  PASSED            sts_serial|   5|    100000|     100|0.95694002|  PASSED            sts_serial|   5|    100000|     100|0.22962139|  PASSED            sts_serial|   6|    100000|     100|0.98097919|  PASSED            sts_serial|   6|    100000|     100|0.83795708|  PASSED            sts_serial|   7|    100000|     100|0.93683159|  PASSED            sts_serial|   7|    100000|     100|0.79020964|  PASSED            sts_serial|   8|    100000|     100|0.69377516|  PASSED            sts_serial|   8|    100000|     100|0.38116960|  PASSED            sts_serial|   9|    100000|     100|0.65940032|  PASSED            sts_serial|   9|    100000|     100|0.85500230|  PASSED            sts_serial|  10|    100000|     100|0.19849855|  PASSED            sts_serial|  10|    100000|     100|0.16446525|  PASSED            sts_serial|  11|    100000|     100|0.24735793|  PASSED            sts_serial|  11|    100000|     100|0.40482073|  PASSED            sts_serial|  12|    100000|     100|0.42946863|  PASSED            sts_serial|  12|    100000|     100|0.67986759|  PASSED            sts_serial|  13|    100000|     100|0.31904715|  PASSED            sts_serial|  13|    100000|     100|0.89958112|  PASSED            sts_serial|  14|    100000|     100|0.03516112|  PASSED            sts_serial|  14|    100000|     100|0.00572954|  PASSED            sts_serial|  15|    100000|     100|0.25516910|  PASSED            sts_serial|  15|    100000|     100|0.98134393|  PASSED            sts_serial|  16|    100000|     100|0.22681525|  PASSED            sts_serial|  16|    100000|     100|0.55438687|  PASSED           rgb_bitdist|   1|    100000|     100|0.61526582|  PASSED           rgb_bitdist|   2|    100000|     100|0.06936633|  PASSED           rgb_bitdist|   3|    100000|     100|0.40179970|  PASSED           rgb_bitdist|   4|    100000|     100|0.64740032|  PASSED           rgb_bitdist|   5|    100000|     100|0.46472989|  PASSED           rgb_bitdist|   6|    100000|     100|0.07941194|  PASSED           rgb_bitdist|   7|    100000|     100|0.44461086|  PASSED           rgb_bitdist|   8|    100000|     100|0.58109228|  PASSED           rgb_bitdist|   9|    100000|     100|0.70960474|  PASSED           rgb_bitdist|  10|    100000|     100|0.85137858|  PASSED           rgb_bitdist|  11|    100000|     100|0.99935805|   WEAK            rgb_bitdist|  12|    100000|     100|0.70354535|  PASSED  rgb_minimum_distance|   2|     10000|    1000|0.27460885|  PASSED  rgb_minimum_distance|   3|     10000|    1000|0.36311414|  PASSED  rgb_minimum_distance|   4|     10000|    1000|0.58342328|  PASSED  rgb_minimum_distance|   5|     10000|    1000|0.14794446|  PASSED      rgb_permutations|   2|    100000|     100|0.50547110|  PASSED      rgb_permutations|   3|    100000|     100|0.18354717|  PASSED      rgb_permutations|   4|    100000|     100|0.84601710|  PASSED      rgb_permutations|   5|    100000|     100|0.63598280|  PASSED        rgb_lagged_sum|   0|   1000000|     100|0.37287317|  PASSED        rgb_lagged_sum|   1|   1000000|     100|0.75416576|  PASSED        rgb_lagged_sum|   2|   1000000|     100|0.63961879|  PASSED        rgb_lagged_sum|   3|   1000000|     100|0.01077529|  PASSED        rgb_lagged_sum|   4|   1000000|     100|0.18887727|  PASSED        rgb_lagged_sum|   5|   1000000|     100|0.16337583|  PASSED        rgb_lagged_sum|   6|   1000000|     100|0.05431404|  PASSED        rgb_lagged_sum|   7|   1000000|     100|0.01679565|  PASSED        rgb_lagged_sum|   8|   1000000|     100|0.10235939|  PASSED        rgb_lagged_sum|   9|   1000000|     100|0.58127552|  PASSED        rgb_lagged_sum|  10|   1000000|     100|0.00843829|  PASSED        rgb_lagged_sum|  11|   1000000|     100|0.08131415|  PASSED        rgb_lagged_sum|  12|   1000000|     100|0.24835950|  PASSED        rgb_lagged_sum|  13|   1000000|     100|0.39861688|  PASSED        rgb_lagged_sum|  14|   1000000|     100|0.47914954|  PASSED        rgb_lagged_sum|  15|   1000000|     100|0.00002898|   WEAK         rgb_lagged_sum|  16|   1000000|     100|0.98131072|  PASSED        rgb_lagged_sum|  17|   1000000|     100|0.80381793|  PASSED        rgb_lagged_sum|  18|   1000000|     100|0.47926388|  PASSED        rgb_lagged_sum|  19|   1000000|     100|0.05503440|  PASSED        rgb_lagged_sum|  20|   1000000|     100|0.31173700|  PASSED        rgb_lagged_sum|  21|   1000000|     100|0.96872067|  PASSED        rgb_lagged_sum|  22|   1000000|     100|0.88674529|  PASSED        rgb_lagged_sum|  23|   1000000|     100|0.16043397|  PASSED        rgb_lagged_sum|  24|   1000000|     100|0.61149972|  PASSED        rgb_lagged_sum|  25|   1000000|     100|0.75335182|  PASSED        rgb_lagged_sum|  26|   1000000|     100|0.98130242|  PASSED        rgb_lagged_sum|  27|   1000000|     100|0.03450865|  PASSED        rgb_lagged_sum|  28|   1000000|     100|0.01963495|  PASSED        rgb_lagged_sum|  29|   1000000|     100|0.75846016|  PASSED        rgb_lagged_sum|  30|   1000000|     100|0.44591545|  PASSED        rgb_lagged_sum|  31|   1000000|     100|0.00000137|   WEAK         rgb_lagged_sum|  32|   1000000|     100|0.27222461|  PASSED       rgb_kstest_test|   0|     10000|    1000|0.68380811|  PASSED       dab_bytedistrib|   0|  51200000|       1|0.05530537|  PASSED               dab_dct| 256|     50000|       1|0.88665003|  PASSED  Preparing to run test 207.  ntuple = 0        dab_filltree|  32|  15000000|       1|0.15196603|  PASSED          dab_filltree|  32|  15000000|       1|0.33800187|  PASSED  Preparing to run test 208.  ntuple = 0       dab_filltree2|   0|   5000000|       1|0.84766841|  PASSED         dab_filltree2|   1|   5000000|       1|0.00464316|   WEAK   Preparing to run test 209.  ntuple = 0        dab_monobit2|  12|  65000000|       1|0.69926158|  PASSED

Only 1 test has failed and 6 tests are marked as weak

With 4GB of data

These tests have been done with a larger dataset : 4GB

Flipper Zero :

Click here to view results

   diehard_birthdays|   0|       100|     100|0.11059818|  PASSED        diehard_operm5|   0|   1000000|     100|0.46243241|  PASSED    diehard_rank_32x32|   0|     40000|     100|0.94015510|  PASSED      diehard_rank_6x8|   0|    100000|     100|0.06733267|  PASSED     diehard_bitstream|   0|   2097152|     100|0.19395269|  PASSED          diehard_opso|   0|   2097152|     100|0.88003794|  PASSED          diehard_oqso|   0|   2097152|     100|0.94872400|  PASSED           diehard_dna|   0|   2097152|     100|0.30016367|  PASSED  diehard_count_1s_str|   0|    256000|     100|0.20777586|  PASSED  diehard_count_1s_byt|   0|    256000|     100|0.79506176|  PASSED   diehard_parking_lot|   0|     12000|     100|0.25422977|  PASSED      diehard_2dsphere|   2|      8000|     100|0.72884093|  PASSED      diehard_3dsphere|   3|      4000|     100|0.95282276|  PASSED       diehard_squeeze|   0|    100000|     100|0.04250899|  PASSED          diehard_sums|   0|       100|     100|0.13981924|  PASSED          diehard_runs|   0|    100000|     100|0.13508787|  PASSED          diehard_runs|   0|    100000|     100|0.02455145|  PASSED         diehard_craps|   0|    200000|     100|0.96194561|  PASSED         diehard_craps|   0|    200000|     100|0.63547515|  PASSED   marsaglia_tsang_gcd|   0|  10000000|     100|0.83452275|  PASSED   marsaglia_tsang_gcd|   0|  10000000|     100|0.82545057|  PASSED           sts_monobit|   1|    100000|     100|0.68486675|  PASSED              sts_runs|   2|    100000|     100|0.91771409|  PASSED            sts_serial|   1|    100000|     100|0.58359946|  PASSED            sts_serial|   2|    100000|     100|0.92654385|  PASSED            sts_serial|   3|    100000|     100|0.65764270|  PASSED            sts_serial|   3|    100000|     100|0.98824281|  PASSED            sts_serial|   4|    100000|     100|0.35597012|  PASSED            sts_serial|   4|    100000|     100|0.53650061|  PASSED            sts_serial|   5|    100000|     100|0.62396496|  PASSED            sts_serial|   5|    100000|     100|0.36307390|  PASSED            sts_serial|   6|    100000|     100|0.28946507|  PASSED            sts_serial|   6|    100000|     100|0.28365471|  PASSED            sts_serial|   7|    100000|     100|0.49950854|  PASSED            sts_serial|   7|    100000|     100|0.13454074|  PASSED            sts_serial|   8|    100000|     100|0.52850097|  PASSED            sts_serial|   8|    100000|     100|0.72954489|  PASSED            sts_serial|   9|    100000|     100|0.62072123|  PASSED            sts_serial|   9|    100000|     100|0.99779751|   WEAK             sts_serial|  10|    100000|     100|0.80344215|  PASSED            sts_serial|  10|    100000|     100|0.54662822|  PASSED            sts_serial|  11|    100000|     100|0.77730946|  PASSED            sts_serial|  11|    100000|     100|0.72394364|  PASSED            sts_serial|  12|    100000|     100|0.81524608|  PASSED            sts_serial|  12|    100000|     100|0.94724026|  PASSED            sts_serial|  13|    100000|     100|0.16490808|  PASSED            sts_serial|  13|    100000|     100|0.64049681|  PASSED            sts_serial|  14|    100000|     100|0.80427373|  PASSED            sts_serial|  14|    100000|     100|0.68417802|  PASSED            sts_serial|  15|    100000|     100|0.26721027|  PASSED            sts_serial|  15|    100000|     100|0.26323260|  PASSED            sts_serial|  16|    100000|     100|0.98447926|  PASSED            sts_serial|  16|    100000|     100|0.15718959|  PASSED           rgb_bitdist|   1|    100000|     100|0.04796896|  PASSED           rgb_bitdist|   2|    100000|     100|0.67467531|  PASSED           rgb_bitdist|   3|    100000|     100|0.73784137|  PASSED           rgb_bitdist|   4|    100000|     100|0.26420347|  PASSED           rgb_bitdist|   5|    100000|     100|0.81311612|  PASSED           rgb_bitdist|   6|    100000|     100|0.57561992|  PASSED           rgb_bitdist|   7|    100000|     100|0.38384323|  PASSED           rgb_bitdist|   8|    100000|     100|0.01813294|  PASSED           rgb_bitdist|   9|    100000|     100|0.66792440|  PASSED           rgb_bitdist|  10|    100000|     100|0.53244433|  PASSED           rgb_bitdist|  11|    100000|     100|0.98652471|  PASSED           rgb_bitdist|  12|    100000|     100|0.65105991|  PASSED  rgb_minimum_distance|   2|     10000|    1000|0.23083645|  PASSED  rgb_minimum_distance|   3|     10000|    1000|0.70524844|  PASSED  rgb_minimum_distance|   4|     10000|    1000|0.48583046|  PASSED  rgb_minimum_distance|   5|     10000|    1000|0.30933062|  PASSED      rgb_permutations|   2|    100000|     100|0.60895705|  PASSED      rgb_permutations|   3|    100000|     100|0.21941196|  PASSED      rgb_permutations|   4|    100000|     100|0.73590163|  PASSED      rgb_permutations|   5|    100000|     100|0.07132175|  PASSED        rgb_lagged_sum|   0|   1000000|     100|0.38382409|  PASSED        rgb_lagged_sum|   1|   1000000|     100|0.70103574|  PASSED        rgb_lagged_sum|   2|   1000000|     100|0.32942564|  PASSED        rgb_lagged_sum|   3|   1000000|     100|0.16065528|  PASSED        rgb_lagged_sum|   4|   1000000|     100|0.04307075|  PASSED        rgb_lagged_sum|   5|   1000000|     100|0.36550579|  PASSED        rgb_lagged_sum|   6|   1000000|     100|0.76352715|  PASSED        rgb_lagged_sum|   7|   1000000|     100|0.70833381|  PASSED        rgb_lagged_sum|   8|   1000000|     100|0.40294697|  PASSED        rgb_lagged_sum|   9|   1000000|     100|0.63587058|  PASSED        rgb_lagged_sum|  10|   1000000|     100|0.44264782|  PASSED        rgb_lagged_sum|  11|   1000000|     100|0.68265712|  PASSED        rgb_lagged_sum|  12|   1000000|     100|0.09088674|  PASSED        rgb_lagged_sum|  13|   1000000|     100|0.73280871|  PASSED        rgb_lagged_sum|  14|   1000000|     100|0.91610269|  PASSED        rgb_lagged_sum|  15|   1000000|     100|0.52377183|  PASSED        rgb_lagged_sum|  16|   1000000|     100|0.54507432|  PASSED        rgb_lagged_sum|  17|   1000000|     100|0.12436072|  PASSED        rgb_lagged_sum|  18|   1000000|     100|0.75817359|  PASSED        rgb_lagged_sum|  19|   1000000|     100|0.92098590|  PASSED        rgb_lagged_sum|  20|   1000000|     100|0.24942670|  PASSED        rgb_lagged_sum|  21|   1000000|     100|0.90198906|  PASSED        rgb_lagged_sum|  22|   1000000|     100|0.29765028|  PASSED        rgb_lagged_sum|  23|   1000000|     100|0.64622982|  PASSED        rgb_lagged_sum|  24|   1000000|     100|0.32519153|  PASSED        rgb_lagged_sum|  25|   1000000|     100|0.78321779|  PASSED        rgb_lagged_sum|  26|   1000000|     100|0.99840916|   WEAK         rgb_lagged_sum|  27|   1000000|     100|0.25324778|  PASSED        rgb_lagged_sum|  28|   1000000|     100|0.98251541|  PASSED        rgb_lagged_sum|  29|   1000000|     100|0.68916391|  PASSED        rgb_lagged_sum|  30|   1000000|     100|0.05570852|  PASSED        rgb_lagged_sum|  31|   1000000|     100|0.30522421|  PASSED        rgb_lagged_sum|  32|   1000000|     100|0.99929872|   WEAK        rgb_kstest_test|   0|     10000|    1000|0.67220840|  PASSED       dab_bytedistrib|   0|  51200000|       1|0.64446712|  PASSED               dab_dct| 256|     50000|       1|0.95202260|  PASSED  Preparing to run test 207.  ntuple = 0        dab_filltree|  32|  15000000|       1|0.09593529|  PASSED          dab_filltree|  32|  15000000|       1|0.46540473|  PASSED  Preparing to run test 208.  ntuple = 0       dab_filltree2|   0|   5000000|       1|0.34519652|  PASSED         dab_filltree2|   1|   5000000|       1|0.24694486|  PASSED  Preparing to run test 209.  ntuple = 0        dab_monobit2|  12|  65000000|       1|0.93595240|  PASSED

3 tests are marked as weak

/dev/urandom :

Click here to view results

   diehard_birthdays|   0|       100|     100|0.04489731|  PASSED        diehard_operm5|   0|   1000000|     100|0.98102302|  PASSED    diehard_rank_32x32|   0|     40000|     100|0.80720399|  PASSED      diehard_rank_6x8|   0|    100000|     100|0.25129153|  PASSED     diehard_bitstream|   0|   2097152|     100|0.95556255|  PASSED          diehard_opso|   0|   2097152|     100|0.55521693|  PASSED          diehard_oqso|   0|   2097152|     100|0.91941987|  PASSED           diehard_dna|   0|   2097152|     100|0.23352172|  PASSED  diehard_count_1s_str|   0|    256000|     100|0.60912108|  PASSED  diehard_count_1s_byt|   0|    256000|     100|0.47545424|  PASSED   diehard_parking_lot|   0|     12000|     100|0.61642584|  PASSED      diehard_2dsphere|   2|      8000|     100|0.14367357|  PASSED      diehard_3dsphere|   3|      4000|     100|0.45610233|  PASSED       diehard_squeeze|   0|    100000|     100|0.53733260|  PASSED          diehard_sums|   0|       100|     100|0.15714087|  PASSED          diehard_runs|   0|    100000|     100|0.48694656|  PASSED          diehard_runs|   0|    100000|     100|0.29615453|  PASSED         diehard_craps|   0|    200000|     100|0.54351193|  PASSED         diehard_craps|   0|    200000|     100|0.97340924|  PASSED   marsaglia_tsang_gcd|   0|  10000000|     100|0.32038380|  PASSED   marsaglia_tsang_gcd|   0|  10000000|     100|0.15966009|  PASSED           sts_monobit|   1|    100000|     100|0.82780276|  PASSED              sts_runs|   2|    100000|     100|0.66372170|  PASSED            sts_serial|   1|    100000|     100|0.69690502|  PASSED            sts_serial|   2|    100000|     100|0.54603984|  PASSED            sts_serial|   3|    100000|     100|0.50169411|  PASSED            sts_serial|   3|    100000|     100|0.07064586|  PASSED            sts_serial|   4|    100000|     100|0.17334216|  PASSED            sts_serial|   4|    100000|     100|0.13979783|  PASSED            sts_serial|   5|    100000|     100|0.83695398|  PASSED            sts_serial|   5|    100000|     100|0.07258805|  PASSED            sts_serial|   6|    100000|     100|0.67304762|  PASSED            sts_serial|   6|    100000|     100|0.64053099|  PASSED            sts_serial|   7|    100000|     100|0.98244793|  PASSED            sts_serial|   7|    100000|     100|0.05792291|  PASSED            sts_serial|   8|    100000|     100|0.30146615|  PASSED            sts_serial|   8|    100000|     100|0.07828512|  PASSED            sts_serial|   9|    100000|     100|0.80119364|  PASSED            sts_serial|   9|    100000|     100|0.44264581|  PASSED            sts_serial|  10|    100000|     100|0.75981289|  PASSED            sts_serial|  10|    100000|     100|0.93799740|  PASSED            sts_serial|  11|    100000|     100|0.25279644|  PASSED            sts_serial|  11|    100000|     100|0.52258261|  PASSED            sts_serial|  12|    100000|     100|0.70168523|  PASSED            sts_serial|  12|    100000|     100|0.20072352|  PASSED            sts_serial|  13|    100000|     100|0.87050967|  PASSED            sts_serial|  13|    100000|     100|0.76237414|  PASSED            sts_serial|  14|    100000|     100|0.27272393|  PASSED            sts_serial|  14|    100000|     100|0.80613522|  PASSED            sts_serial|  15|    100000|     100|0.92176493|  PASSED            sts_serial|  15|    100000|     100|0.87208395|  PASSED            sts_serial|  16|    100000|     100|0.37388632|  PASSED            sts_serial|  16|    100000|     100|0.15469900|  PASSED           rgb_bitdist|   1|    100000|     100|0.28057802|  PASSED           rgb_bitdist|   2|    100000|     100|0.68343411|  PASSED           rgb_bitdist|   3|    100000|     100|0.44405469|  PASSED           rgb_bitdist|   4|    100000|     100|0.90713693|  PASSED           rgb_bitdist|   5|    100000|     100|0.49209205|  PASSED           rgb_bitdist|   6|    100000|     100|0.75199988|  PASSED           rgb_bitdist|   7|    100000|     100|0.74239445|  PASSED           rgb_bitdist|   8|    100000|     100|0.53329955|  PASSED           rgb_bitdist|   9|    100000|     100|0.91149445|  PASSED           rgb_bitdist|  10|    100000|     100|0.74220741|  PASSED           rgb_bitdist|  11|    100000|     100|0.04053006|  PASSED           rgb_bitdist|  12|    100000|     100|0.15864202|  PASSED  rgb_minimum_distance|   2|     10000|    1000|0.93506783|  PASSED  rgb_minimum_distance|   3|     10000|    1000|0.03035361|  PASSED  rgb_minimum_distance|   4|     10000|    1000|0.01684604|  PASSED  rgb_minimum_distance|   5|     10000|    1000|0.40535950|  PASSED      rgb_permutations|   2|    100000|     100|0.73530875|  PASSED      rgb_permutations|   3|    100000|     100|0.13793235|  PASSED      rgb_permutations|   4|    100000|     100|0.80825360|  PASSED      rgb_permutations|   5|    100000|     100|0.82976800|  PASSED        rgb_lagged_sum|   0|   1000000|     100|0.30047172|  PASSED        rgb_lagged_sum|   1|   1000000|     100|0.02522645|  PASSED        rgb_lagged_sum|   2|   1000000|     100|0.25228513|  PASSED        rgb_lagged_sum|   3|   1000000|     100|0.91017293|  PASSED        rgb_lagged_sum|   4|   1000000|     100|0.31593881|  PASSED        rgb_lagged_sum|   5|   1000000|     100|0.59018579|  PASSED        rgb_lagged_sum|   6|   1000000|     100|0.62145449|  PASSED        rgb_lagged_sum|   7|   1000000|     100|0.52971041|  PASSED        rgb_lagged_sum|   8|   1000000|     100|0.69269041|  PASSED        rgb_lagged_sum|   9|   1000000|     100|0.92143793|  PASSED        rgb_lagged_sum|  10|   1000000|     100|0.70090470|  PASSED        rgb_lagged_sum|  11|   1000000|     100|0.96953878|  PASSED        rgb_lagged_sum|  12|   1000000|     100|0.06517103|  PASSED        rgb_lagged_sum|  13|   1000000|     100|0.87917675|  PASSED        rgb_lagged_sum|  14|   1000000|     100|0.79970530|  PASSED        rgb_lagged_sum|  15|   1000000|     100|0.73699022|  PASSED        rgb_lagged_sum|  16|   1000000|     100|0.61585289|  PASSED        rgb_lagged_sum|  17|   1000000|     100|0.30133443|  PASSED        rgb_lagged_sum|  18|   1000000|     100|0.97329715|  PASSED        rgb_lagged_sum|  19|   1000000|     100|0.09381675|  PASSED        rgb_lagged_sum|  20|   1000000|     100|0.57235026|  PASSED        rgb_lagged_sum|  21|   1000000|     100|0.46045580|  PASSED        rgb_lagged_sum|  22|   1000000|     100|0.90887517|  PASSED        rgb_lagged_sum|  23|   1000000|     100|0.64358135|  PASSED        rgb_lagged_sum|  24|   1000000|     100|0.94803867|  PASSED        rgb_lagged_sum|  25|   1000000|     100|0.40998866|  PASSED        rgb_lagged_sum|  26|   1000000|     100|0.81309099|  PASSED        rgb_lagged_sum|  27|   1000000|     100|0.61299561|  PASSED        rgb_lagged_sum|  28|   1000000|     100|0.74593506|  PASSED        rgb_lagged_sum|  29|   1000000|     100|0.73121448|  PASSED        rgb_lagged_sum|  30|   1000000|     100|0.25976969|  PASSED        rgb_lagged_sum|  31|   1000000|     100|0.00383725|   WEAK         rgb_lagged_sum|  32|   1000000|     100|0.01261432|  PASSED       rgb_kstest_test|   0|     10000|    1000|0.47923383|  PASSED       dab_bytedistrib|   0|  51200000|       1|0.68448302|  PASSED               dab_dct| 256|     50000|       1|0.08725468|  PASSED  Preparing to run test 207.  ntuple = 0        dab_filltree|  32|  15000000|       1|0.66495602|  PASSED          dab_filltree|  32|  15000000|       1|0.43040524|  PASSED  Preparing to run test 208.  ntuple = 0       dab_filltree2|   0|   5000000|       1|0.72723941|  PASSED         dab_filltree2|   1|   5000000|       1|0.01631449|  PASSED  Preparing to run test 209.  ntuple = 0        dab_monobit2|  12|  65000000|       1|0.12068832|  PASSED

Only 1 test is marked as weak

In conclusionFlipper Zero hardware random number generator quality is comparable to/dev/urandom

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An analysis of quality of random number generator of Flipper Zero

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flipperzero-random-number-quality

How to generate random numbers ?

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Analysis with dieharder

With 256MB of data

With 4GB of data

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nmrr/flipperzero-random-number-quality

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flipperzero-random-number-quality

How to generate random numbers ?

Build the program

Analysis with dieharder

With 256MB of data

With 4GB of data

About

Topics

Resources

Uh oh!

Stars

Watchers

Forks

Releases

Packages0

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Packages