tests/qtest/npcm7xx_rng-test.c

21 #include "libqtest-single.h"
77     while (retries-- > 0) {  in rng_wait_ready()
87  * Perform a frequency (monobit) test, as defined by NIST SP 800-22, on the
88  * sequence in buf and return the P-value. This represents the probability of a
104          * Each 1 counts as 1, each 0 counts as -1.  in calc_monobit_p()
105          * s = cp - (8 - cp) = 2 * cp - 8  in calc_monobit_p()
107         sn += 2 * ctpop8(buf[i]) - 8;  in calc_monobit_p()
116  * Perform a runs test, as defined by NIST SP 800-22, and return the P-value.
118  * number of runs (i.e. uninterrupted sequences of identical bits) as the
136     for (k = 0; k < nr_bits - 1; k++) {  in calc_runs_p()
141     return erfc(fabs(vn_obs - 2 * nr_bits * pi * (1.0 - pi))  in calc_runs_p()
142                 / (2 * sqrt(2 * nr_bits) * pi * (1.0 - pi)));  in calc_runs_p()
204  * satisfies a runs test.
248  * a runs test.
286         qtest_add_func("npcm7xx_rng/continuous/runs", test_continuous_runs);  in main()
288         qtest_add_func("npcm7xx_rng/first_byte/runs", test_first_byte_runs);  in main()
291     qtest_start("-machine npcm750-evb");  in main()