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circuitpython/extmod
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Jeff Epler ab5eb86118 raspberrypi: implement os.urandom 
Since the datasheet cast some doubt on the strength of the "rosc_hw->randombit",
I use the SHA256 hash function to create a high quality random seed
from random values of uncertain entropy, as well as to generate a sequence
of random values from that seed using SHA256 as a cryptographically-secure
random number generator.

In practice, it produces over 100kB/s of random data which does not
have any gross problems according to _PractRand_.
 		2021-02-17 17:49:25 -06:00
..
crypto-algorithms raspberrypi: implement os.urandom 2021-02-17 17:49:25 -06:00
lwip-include WIP: complete manual inspection of all significant changes 2018-07-23 21:34:25 -04:00
re1.5 Add FALLTHROUGH comments as needed 2020-09-12 15:11:29 -05:00
ulab@743d86487c ulab: update to 1.7.2 2021-01-29 09:45:00 -06:00
font_petme128_8x8.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
machine_mem.c Use mp_raise instead of nlr_raise(new_exception) where possible 2020-11-19 16:13:01 -06:00
machine_mem.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
machine_pinbase.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
machine_pinbase.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
machine_pulse.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
machine_pulse.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
machine_signal.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
machine_signal.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
misc.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modbtree.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modframebuf.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modlwip.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modonewire.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modubinascii.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modubinascii.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
moductypes.c Combine 'index out of range' messages 2020-08-04 14:45:45 -05:00
moduhashlib.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
moduheapq.c Use mp_raise instead of nlr_raise(new_exception) where possible 2020-11-19 16:13:01 -06:00
modujson.c Ignore size parameter 2020-11-23 12:14:58 -08:00
modurandom.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modure.c Introduce, use mp_raise_arg1 2020-11-19 16:15:06 -06:00
moduselect.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modussl_axtls.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modussl_mbedtls.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modutimeq.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
moduzlib.c Introduce, use mp_raise_arg1 2020-11-19 16:15:06 -06:00
modwebrepl.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modwebsocket.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
modwebsocket.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
uos_dupterm.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
utime_mphal.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
utime_mphal.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
vfs.c Fix warnings that come from -O3 (I think) 2021-01-20 19:16:56 -08:00
vfs.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
vfs_fat.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
vfs_fat.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
vfs_fat_diskio.c Unify iMX flash config and add Metro M7 1011 2020-10-07 15:23:47 -07:00
vfs_fat_file.c various: Use mp_obj_get_type_qstr more widely 2020-08-04 14:45:45 -05:00
vfs_posix.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
vfs_posix.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00
vfs_posix_file.c Use mp_raise instead of nlr_raise(new_exception) where possible 2020-11-19 16:13:01 -06:00
vfs_reader.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
virtpin.c Add license to some obvious files. 2020-07-06 19:16:25 +01:00
virtpin.h Add license to some obvious files. 2020-07-06 19:16:25 +01:00