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safing-portbase/crypto/random/test/README.md

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# Entropy Testing
In order verify that the random package actually generates random enough entropy/data, this test program holds the core functions that generate entropy as well as some noise makers to simulate a running program.
Please also note that output from `tickFeeder` is never used directly but fed as entropy to the actual RNG - `fortuna`.
With `tickFeeder`, to be sure that the delivered entropy is of high enough quality, only 1 bit of entropy is expected per generated byte - ie. we gather 8 times the amount we need. The following test below is run on the raw output.
To test the quality of entropy, first generate random data with the test program:
go build
./test tickfeeder > output.bin # just the additional entropy feed
# OR
./test fortuna > output.bin # the actual CSPRNG
ls -lah output.bin # check filesize: should be ~1MB
Then, run `dieharder`, a random number generator test tool:
dieharder -a -f output.bin
Below you can find two test outputs of `dieharder`.
Please note that around 5 tests of `dieharder` normally fail. This is expected and even desired.
`dieharder` output of 22KB of contextswitch (`go version go1.10.3 linux/amd64` on 23.08.2018):
#=============================================================================#
# dieharder version 3.31.1 Copyright 2003 Robert G. Brown #
#=============================================================================#
rng_name | filename |rands/second|
mt19937| output.bin| 1.00e+08 |
#=============================================================================#
test_name |ntup| tsamples |psamples| p-value |Assessment
#=============================================================================#
diehard_birthdays| 0| 100| 100|0.75124818| PASSED
diehard_operm5| 0| 1000000| 100|0.71642114| PASSED
diehard_rank_32x32| 0| 40000| 100|0.66406749| PASSED
diehard_rank_6x8| 0| 100000| 100|0.79742497| PASSED
diehard_bitstream| 0| 2097152| 100|0.68336079| PASSED
diehard_opso| 0| 2097152| 100|0.99670345| WEAK
diehard_oqso| 0| 2097152| 100|0.85930861| PASSED
diehard_dna| 0| 2097152| 100|0.77857540| PASSED
diehard_count_1s_str| 0| 256000| 100|0.27851730| PASSED
diehard_count_1s_byt| 0| 256000| 100|0.29570009| PASSED
diehard_parking_lot| 0| 12000| 100|0.51526020| PASSED
diehard_2dsphere| 2| 8000| 100|0.49199324| PASSED
diehard_3dsphere| 3| 4000| 100|0.99008122| PASSED
diehard_squeeze| 0| 100000| 100|0.95518110| PASSED
diehard_sums| 0| 100| 100|0.00015930| WEAK
diehard_runs| 0| 100000| 100|0.50091086| PASSED
diehard_runs| 0| 100000| 100|0.44091340| PASSED
diehard_craps| 0| 200000| 100|0.77284264| PASSED
diehard_craps| 0| 200000| 100|0.71027434| PASSED
marsaglia_tsang_gcd| 0| 10000000| 100|0.38138922| PASSED
marsaglia_tsang_gcd| 0| 10000000| 100|0.36661590| PASSED
sts_monobit| 1| 100000| 100|0.06209802| PASSED
sts_runs| 2| 100000| 100|0.82506539| PASSED
sts_serial| 1| 100000| 100|0.99198615| PASSED
sts_serial| 2| 100000| 100|0.85604831| PASSED
sts_serial| 3| 100000| 100|0.06613657| PASSED
sts_serial| 3| 100000| 100|0.16787860| PASSED
sts_serial| 4| 100000| 100|0.45227401| PASSED
sts_serial| 4| 100000| 100|0.43529092| PASSED
sts_serial| 5| 100000| 100|0.99912474| WEAK
sts_serial| 5| 100000| 100|0.94754128| PASSED
sts_serial| 6| 100000| 100|0.98406523| PASSED
sts_serial| 6| 100000| 100|0.92895983| PASSED
sts_serial| 7| 100000| 100|0.45965410| PASSED
sts_serial| 7| 100000| 100|0.64185152| PASSED
sts_serial| 8| 100000| 100|0.57922926| PASSED
sts_serial| 8| 100000| 100|0.52390292| PASSED
sts_serial| 9| 100000| 100|0.82722325| PASSED
sts_serial| 9| 100000| 100|0.89384819| PASSED
sts_serial| 10| 100000| 100|0.79877889| PASSED
sts_serial| 10| 100000| 100|0.49562348| PASSED
sts_serial| 11| 100000| 100|0.09217966| PASSED
sts_serial| 11| 100000| 100|0.00342361| WEAK
sts_serial| 12| 100000| 100|0.60119444| PASSED
sts_serial| 12| 100000| 100|0.20420318| PASSED
sts_serial| 13| 100000| 100|0.76867489| PASSED
sts_serial| 13| 100000| 100|0.35717970| PASSED
sts_serial| 14| 100000| 100|0.67364089| PASSED
sts_serial| 14| 100000| 100|0.98667204| PASSED
sts_serial| 15| 100000| 100|0.24328833| PASSED
sts_serial| 15| 100000| 100|0.52098866| PASSED
sts_serial| 16| 100000| 100|0.48845863| PASSED
sts_serial| 16| 100000| 100|0.61943558| PASSED
rgb_bitdist| 1| 100000| 100|0.24694812| PASSED
rgb_bitdist| 2| 100000| 100|0.75873723| PASSED
rgb_bitdist| 3| 100000| 100|0.28670990| PASSED
rgb_bitdist| 4| 100000| 100|0.41966273| PASSED
rgb_bitdist| 5| 100000| 100|0.80463973| PASSED
rgb_bitdist| 6| 100000| 100|0.44747725| PASSED
rgb_bitdist| 7| 100000| 100|0.35848420| PASSED
rgb_bitdist| 8| 100000| 100|0.56585089| PASSED
rgb_bitdist| 9| 100000| 100|0.23179559| PASSED
rgb_bitdist| 10| 100000| 100|0.83369283| PASSED
rgb_bitdist| 11| 100000| 100|0.74761235| PASSED
rgb_bitdist| 12| 100000| 100|0.50477673| PASSED
rgb_minimum_distance| 2| 10000| 1000|0.29527530| PASSED
rgb_minimum_distance| 3| 10000| 1000|0.83681186| PASSED
rgb_minimum_distance| 4| 10000| 1000|0.85939646| PASSED
rgb_minimum_distance| 5| 10000| 1000|0.90229335| PASSED
rgb_permutations| 2| 100000| 100|0.99010460| PASSED
rgb_permutations| 3| 100000| 100|0.99360922| PASSED
rgb_permutations| 4| 100000| 100|0.30113906| PASSED
rgb_permutations| 5| 100000| 100|0.60701235| PASSED
rgb_lagged_sum| 0| 1000000| 100|0.37080580| PASSED
rgb_lagged_sum| 1| 1000000| 100|0.91852932| PASSED
rgb_lagged_sum| 2| 1000000| 100|0.74568323| PASSED
rgb_lagged_sum| 3| 1000000| 100|0.64070201| PASSED
rgb_lagged_sum| 4| 1000000| 100|0.53802729| PASSED
rgb_lagged_sum| 5| 1000000| 100|0.67865656| PASSED
rgb_lagged_sum| 6| 1000000| 100|0.85161494| PASSED
rgb_lagged_sum| 7| 1000000| 100|0.37312323| PASSED
rgb_lagged_sum| 8| 1000000| 100|0.17841759| PASSED
rgb_lagged_sum| 9| 1000000| 100|0.85795513| PASSED
rgb_lagged_sum| 10| 1000000| 100|0.79843176| PASSED
rgb_lagged_sum| 11| 1000000| 100|0.21320830| PASSED
rgb_lagged_sum| 12| 1000000| 100|0.94709672| PASSED
rgb_lagged_sum| 13| 1000000| 100|0.12600611| PASSED
rgb_lagged_sum| 14| 1000000| 100|0.26780352| PASSED
rgb_lagged_sum| 15| 1000000| 100|0.07862730| PASSED
rgb_lagged_sum| 16| 1000000| 100|0.21102254| PASSED
rgb_lagged_sum| 17| 1000000| 100|0.82967141| PASSED
rgb_lagged_sum| 18| 1000000| 100|0.05818566| PASSED
rgb_lagged_sum| 19| 1000000| 100|0.01010140| PASSED
rgb_lagged_sum| 20| 1000000| 100|0.17941782| PASSED
rgb_lagged_sum| 21| 1000000| 100|0.98442639| PASSED
rgb_lagged_sum| 22| 1000000| 100|0.30352772| PASSED
rgb_lagged_sum| 23| 1000000| 100|0.56855155| PASSED
rgb_lagged_sum| 24| 1000000| 100|0.27280405| PASSED
rgb_lagged_sum| 25| 1000000| 100|0.41141889| PASSED
rgb_lagged_sum| 26| 1000000| 100|0.25389013| PASSED
rgb_lagged_sum| 27| 1000000| 100|0.10313177| PASSED
rgb_lagged_sum| 28| 1000000| 100|0.76610028| PASSED
rgb_lagged_sum| 29| 1000000| 100|0.97903830| PASSED
rgb_lagged_sum| 30| 1000000| 100|0.51216732| PASSED
rgb_lagged_sum| 31| 1000000| 100|0.98578832| PASSED
rgb_lagged_sum| 32| 1000000| 100|0.95078719| PASSED
rgb_kstest_test| 0| 10000| 1000|0.24930712| PASSED
dab_bytedistrib| 0| 51200000| 1|0.51100031| PASSED
dab_dct| 256| 50000| 1|0.28794956| PASSED
Preparing to run test 207. ntuple = 0
dab_filltree| 32| 15000000| 1|0.93283449| PASSED
dab_filltree| 32| 15000000| 1|0.36488075| PASSED
Preparing to run test 208. ntuple = 0
dab_filltree2| 0| 5000000| 1|0.94036105| PASSED
dab_filltree2| 1| 5000000| 1|0.30118240| PASSED
Preparing to run test 209. ntuple = 0
dab_monobit2| 12| 65000000| 1|0.00209003| WEAK
`dieharder` of 1MB of fortuna (`go version go1.10.3 linux/amd64` on 23.08.2018):
#=============================================================================#
# dieharder version 3.31.1 Copyright 2003 Robert G. Brown #
#=============================================================================#
rng_name | filename |rands/second|
mt19937| output.bin| 8.44e+07 |
#=============================================================================#
test_name |ntup| tsamples |psamples| p-value |Assessment
#=============================================================================#
diehard_birthdays| 0| 100| 100|0.94302153| PASSED
diehard_operm5| 0| 1000000| 100|0.08378380| PASSED
diehard_rank_32x32| 0| 40000| 100|0.02062049| PASSED
diehard_rank_6x8| 0| 100000| 100|0.43787871| PASSED
diehard_bitstream| 0| 2097152| 100|0.15713023| PASSED
diehard_opso| 0| 2097152| 100|0.79331996| PASSED
diehard_oqso| 0| 2097152| 100|0.54138750| PASSED
diehard_dna| 0| 2097152| 100|0.06957205| PASSED
diehard_count_1s_str| 0| 256000| 100|0.21653644| PASSED
diehard_count_1s_byt| 0| 256000| 100|0.96539542| PASSED
diehard_parking_lot| 0| 12000| 100|0.21306362| PASSED
diehard_2dsphere| 2| 8000| 100|0.40750466| PASSED
diehard_3dsphere| 3| 4000| 100|0.99827314| WEAK
diehard_squeeze| 0| 100000| 100|0.70994607| PASSED
diehard_sums| 0| 100| 100|0.42729005| PASSED
diehard_runs| 0| 100000| 100|0.08118125| PASSED
diehard_runs| 0| 100000| 100|0.99226204| PASSED
diehard_craps| 0| 200000| 100|0.49803401| PASSED
diehard_craps| 0| 200000| 100|0.84011191| PASSED
marsaglia_tsang_gcd| 0| 10000000| 100|0.40135552| PASSED
marsaglia_tsang_gcd| 0| 10000000| 100|0.53311975| PASSED
sts_monobit| 1| 100000| 100|0.96903259| PASSED
sts_runs| 2| 100000| 100|0.55734041| PASSED
sts_serial| 1| 100000| 100|0.69041819| PASSED
sts_serial| 2| 100000| 100|0.61728694| PASSED
sts_serial| 3| 100000| 100|0.70299864| PASSED
sts_serial| 3| 100000| 100|0.36332027| PASSED
sts_serial| 4| 100000| 100|0.57627216| PASSED
sts_serial| 4| 100000| 100|0.95046929| PASSED
sts_serial| 5| 100000| 100|0.79824554| PASSED
sts_serial| 5| 100000| 100|0.62786166| PASSED
sts_serial| 6| 100000| 100|0.84103529| PASSED
sts_serial| 6| 100000| 100|0.89083859| PASSED
sts_serial| 7| 100000| 100|0.69686380| PASSED
sts_serial| 7| 100000| 100|0.79436099| PASSED
sts_serial| 8| 100000| 100|0.84082295| PASSED
sts_serial| 8| 100000| 100|0.95915719| PASSED
sts_serial| 9| 100000| 100|0.48200567| PASSED
sts_serial| 9| 100000| 100|0.10836112| PASSED
sts_serial| 10| 100000| 100|0.45470523| PASSED
sts_serial| 10| 100000| 100|0.97608829| PASSED
sts_serial| 11| 100000| 100|0.89344380| PASSED
sts_serial| 11| 100000| 100|0.31959825| PASSED
sts_serial| 12| 100000| 100|0.43415812| PASSED
sts_serial| 12| 100000| 100|0.27845148| PASSED
sts_serial| 13| 100000| 100|0.50590833| PASSED
sts_serial| 13| 100000| 100|0.39585514| PASSED
sts_serial| 14| 100000| 100|0.55566778| PASSED
sts_serial| 14| 100000| 100|0.57138798| PASSED
sts_serial| 15| 100000| 100|0.12315118| PASSED
sts_serial| 15| 100000| 100|0.41728831| PASSED
sts_serial| 16| 100000| 100|0.23202389| PASSED
sts_serial| 16| 100000| 100|0.84883373| PASSED
rgb_bitdist| 1| 100000| 100|0.45137388| PASSED
rgb_bitdist| 2| 100000| 100|0.93984739| PASSED
rgb_bitdist| 3| 100000| 100|0.85148557| PASSED
rgb_bitdist| 4| 100000| 100|0.77062397| PASSED
rgb_bitdist| 5| 100000| 100|0.79511260| PASSED
rgb_bitdist| 6| 100000| 100|0.86150140| PASSED
rgb_bitdist| 7| 100000| 100|0.98572979| PASSED
rgb_bitdist| 8| 100000| 100|0.73302973| PASSED
rgb_bitdist| 9| 100000| 100|0.39660028| PASSED
rgb_bitdist| 10| 100000| 100|0.13167592| PASSED
rgb_bitdist| 11| 100000| 100|0.87937846| PASSED
rgb_bitdist| 12| 100000| 100|0.80619403| PASSED
rgb_minimum_distance| 2| 10000| 1000|0.38189429| PASSED
rgb_minimum_distance| 3| 10000| 1000|0.21164619| PASSED
rgb_minimum_distance| 4| 10000| 1000|0.91875064| PASSED
rgb_minimum_distance| 5| 10000| 1000|0.27897081| PASSED
rgb_permutations| 2| 100000| 100|0.22927506| PASSED
rgb_permutations| 3| 100000| 100|0.80827585| PASSED
rgb_permutations| 4| 100000| 100|0.38750474| PASSED
rgb_permutations| 5| 100000| 100|0.18938169| PASSED
rgb_lagged_sum| 0| 1000000| 100|0.72234187| PASSED
rgb_lagged_sum| 1| 1000000| 100|0.28633796| PASSED
rgb_lagged_sum| 2| 1000000| 100|0.52961866| PASSED
rgb_lagged_sum| 3| 1000000| 100|0.99876080| WEAK
rgb_lagged_sum| 4| 1000000| 100|0.39603203| PASSED
rgb_lagged_sum| 5| 1000000| 100|0.01004618| PASSED
rgb_lagged_sum| 6| 1000000| 100|0.89539065| PASSED
rgb_lagged_sum| 7| 1000000| 100|0.55558774| PASSED
rgb_lagged_sum| 8| 1000000| 100|0.40063365| PASSED
rgb_lagged_sum| 9| 1000000| 100|0.30905028| PASSED
rgb_lagged_sum| 10| 1000000| 100|0.31161899| PASSED
rgb_lagged_sum| 11| 1000000| 100|0.76729775| PASSED
rgb_lagged_sum| 12| 1000000| 100|0.36416009| PASSED
rgb_lagged_sum| 13| 1000000| 100|0.21062168| PASSED
rgb_lagged_sum| 14| 1000000| 100|0.17580591| PASSED
rgb_lagged_sum| 15| 1000000| 100|0.54465457| PASSED
rgb_lagged_sum| 16| 1000000| 100|0.39394806| PASSED
rgb_lagged_sum| 17| 1000000| 100|0.81572681| PASSED
rgb_lagged_sum| 18| 1000000| 100|0.98821505| PASSED
rgb_lagged_sum| 19| 1000000| 100|0.86755786| PASSED
rgb_lagged_sum| 20| 1000000| 100|0.37832948| PASSED
rgb_lagged_sum| 21| 1000000| 100|0.52001140| PASSED
rgb_lagged_sum| 22| 1000000| 100|0.83595676| PASSED
rgb_lagged_sum| 23| 1000000| 100|0.22643336| PASSED
rgb_lagged_sum| 24| 1000000| 100|0.96475696| PASSED
rgb_lagged_sum| 25| 1000000| 100|0.49570837| PASSED
rgb_lagged_sum| 26| 1000000| 100|0.71327165| PASSED
rgb_lagged_sum| 27| 1000000| 100|0.07344404| PASSED
rgb_lagged_sum| 28| 1000000| 100|0.86374872| PASSED
rgb_lagged_sum| 29| 1000000| 100|0.24892548| PASSED
rgb_lagged_sum| 30| 1000000| 100|0.14314375| PASSED
rgb_lagged_sum| 31| 1000000| 100|0.27884009| PASSED
rgb_lagged_sum| 32| 1000000| 100|0.66637341| PASSED
rgb_kstest_test| 0| 10000| 1000|0.13954587| PASSED
dab_bytedistrib| 0| 51200000| 1|0.54278716| PASSED
dab_dct| 256| 50000| 1|0.71177390| PASSED
Preparing to run test 207. ntuple = 0
dab_filltree| 32| 15000000| 1|0.51006153| PASSED
dab_filltree| 32| 15000000| 1|0.91162889| PASSED
Preparing to run test 208. ntuple = 0
dab_filltree2| 0| 5000000| 1|0.15507188| PASSED
dab_filltree2| 1| 5000000| 1|0.16787382| PASSED
Preparing to run test 209. ntuple = 0
dab_monobit2| 12| 65000000| 1|0.28347219| PASSED
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