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The world's easiest TRNG to get right

License: Creative Commons Zero v1.0 Universal

HTML 5.54% Python 5.05% C 73.32% Makefile 1.44% Shell 8.84% Roff 5.81%

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dieharder test failures for multipliers which are not a factor of four

Hi, I received three Infinite Noise USB sticks this week and I'm testing them with dieharder.

x200 ➜  ~  sudo infnoise --multiplier 10 | dieharder -g 200 -a      
#=============================================================================#
#            dieharder version 3.31.1 Copyright 2003 Robert G. Brown          #
#=============================================================================#
   rng_name    |rands/second|   Seed   |
stdin_input_raw|  7.51e+04  |1364804889|
#=============================================================================#
        test_name   |ntup| tsamples |psamples|  p-value |Assessment
#=============================================================================#
   diehard_birthdays|   0|       100|     100|0.23129000|  PASSED  
      diehard_operm5|   0|   1000000|     100|0.00000000|  FAILED  
  diehard_rank_32x32|   0|     40000|     100|0.37159768|  PASSED  
    diehard_rank_6x8|   0|    100000|     100|0.60789942|  PASSED  
   diehard_bitstream|   0|   2097152|     100|0.00000000|  FAILED  
        diehard_opso|   0|   2097152|     100|0.00000000|  FAILED  
        diehard_oqso|   0|   2097152|     100|0.00000000|  FAILED  
         diehard_dna|   0|   2097152|     100|0.56541430|  PASSED  
diehard_count_1s_str|   0|    256000|     100|0.00000000|  FAILED  
diehard_count_1s_byt|   0|    256000|     100|0.25930858|  PASSED  
 diehard_parking_lot|   0|     12000|     100|0.00000000|  FAILED  
    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
    diehard_3dsphere|   3|      4000|     100|0.97260166|  PASSED  
     diehard_squeeze|   0|    100000|     100|0.00000000|  FAILED  
        diehard_sums|   0|       100|     100|0.00098605|   WEAK   
        diehard_runs|   0|    100000|     100|0.00000000|  FAILED  
        diehard_runs|   0|    100000|     100|0.00000547|   WEAK   
       diehard_craps|   0|    200000|     100|0.87231322|  PASSED  
       diehard_craps|   0|    200000|     100|0.00000000|  FAILED  
^C

I started with 10 as this is suggested in /etc/infnoise.conf. It seems that infnoise is broken for multipliers which are not a factor of four.

x200 ➜  ~  for m in `seq 1000 -1 100`; do echo -n $m; sudo infnoise --multiplier $m | dieharder -g 200 -d 11 | grep diehard_2dsphere; done
1000    diehard_2dsphere|   2|      8000|     100|0.79740406|  PASSED  
999    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
998    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
997    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
996    diehard_2dsphere|   2|      8000|     100|0.96286276|  PASSED  
995    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
994    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
993    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
992    diehard_2dsphere|   2|      8000|     100|0.16767338|  PASSED  
991    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
990    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
989    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
988    diehard_2dsphere|   2|      8000|     100|0.85300938|  PASSED  
987    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
986    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
985    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
984    diehard_2dsphere|   2|      8000|     100|0.94821266|  PASSED  
983    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
982    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
981    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
980    diehard_2dsphere|   2|      8000|     100|0.66834763|  PASSED  
979    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
978    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
977    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
976    diehard_2dsphere|   2|      8000|     100|0.89871392|  PASSED  
975    diehard_2dsphere|   2|      8000|     100|0.00000000|  FAILED  
974^C

This happens using version 0.3.0, version 0.2.6 doesn't show this behavior:

x200 ➜  ~  for m in `seq 1000 -1 100`; do echo -n $m; sudo infnoise --multiplier $m | dieharder -g 200 -d 11 | grep diehard_2dsphere; done
1000    diehard_2dsphere|   2|      8000|     100|0.29921090|  PASSED  
999    diehard_2dsphere|   2|      8000|     100|0.74759359|  PASSED  
998    diehard_2dsphere|   2|      8000|     100|0.29975106|  PASSED  
997    diehard_2dsphere|   2|      8000|     100|0.98317491|  PASSED  
996    diehard_2dsphere|   2|      8000|     100|0.96896072|  PASSED  
995    diehard_2dsphere|   2|      8000|     100|0.61387792|  PASSED  
994    diehard_2dsphere|   2|      8000|     100|0.28696629|  PASSED  
993^C

-- Christophe

Issues with 'make install'

I tried installing the .deb package from the apt repo, the software didn't work because it was apparently built with a newer glibc than what comes with Debian 11. Not sure if this means something needs to be updated in the apt repo or not.

Cloned the code and did make -f Makefile.linux infnoise to compile the software, then sudo make -f Makefile.linux install to install everything. This almost worked, but it installed the udev file under /usr/local/lib/udev/rules.d/, which is not where the system checks when hardware is inserted or removed.

I ended up having to do cd /usr/lib/udev/rules.d ; ln -s /usr/local/lib/udev/rules.d/75-infnoise.rules . to create a symlink, so the system would see the file and start the service automatically. I've never heard of a system looking for udev files under /usr/local/ before ... maybe that install line in Makefile.linux should not be using $(PREFIX), and instead have /usr/lib/udev/rules.d/ hard-coded?

Is sytemd needed?

If there were a forum/IRC or anything, I'd ask there, but afaict there is none. The packages automatically generate a systemd service. So it won't be compatible with other init systems like OpenRC or runit? Or am I misunderstanding anything about init daemon services or the infnoise driver? Will this differ when compiling from source (because e.g. Gentoo and Void don't have suitable packages anyway)?

Dead project ?

Hi, is this project still maintained, last commit was 6 months ago

make infnoise-passgen more flexible

remove need to separately capture data (read from device or /dev/random instead)
add more options (i.e. ranges/entropy compression)

Linux kernel driver support

Similarly to ChaosKey, support for Infnoise by the Linux kernel would be appreciated. In that case Infnoise's random data should be feeded into kernel's LRNG which does the PRNG via ChaCha20 and alike.

Compiling 0.3.2 error

Compiling v0.3.2 on oDroid C2 fails where as 0.3.1 compiles fine. Any suggestions would be appreciated.

make -f Makefile.linux
cc -c -o writeentropy.o writeentropy.c -Wall -Wextra -Werror -std=c99 -O3 -fPIC -I Keccak -I /usr/include/libftdi1 -DGIT_VERSION=\"0.3.2\" -DGIT_COMMIT=\"e80ddd78085abf3d06df2e0d8c08fd33dade78eb\" -DGIT_DATE=\"2019-08-12T21:24:02+02:00\" -DLINUX
writeentropy.c: In function ‘readNumberFromFile’:
writeentropy.c:29:29: error: comparison is always true due to limited range of data type [-Werror=type-limits]
     while( (c = getc(file)) != EOF
                             ^~
cc1: all warnings being treated as errors
make: *** [Makefile.linux:21: writeentropy.o] Error 1

Add switch to push data to urandom

a lot of applications use /dev/urandom as source of entropy. Offer to add switch and push data to /dev/urandom.
Any comments @manuel-domke ?

Problem running systemctl status infnoise on Ubuntu 22.04.1 LTS

Errors printed when running systemctl status infnoise :

base) james@james-System-Product-Name:~/Desktop/infnoise/software$ systemctl status infnoise
× infnoise.service - Wayward Geek InfNoise TRNG driver
Loaded: loaded (/lib/systemd/system/infnoise.service; enabled; vendor preset: enabled)
Active: failed (Result: exit-code) since Mon 2023-03-06 18:00:16 GMT; 8min ago
Process: 96198 ExecStart=/usr/sbin/infnoise --dev-random --daemon --pidfile /var/run/infnoise.pid (code=exited, status=127)
CPU: 2ms

Mar 06 18:00:15 james-System-Product-Name systemd[1]: infnoise.service: Control process exited, code=exited, status=127/n/a
Mar 06 18:00:15 james-System-Product-Name systemd[1]: infnoise.service: Failed with result 'exit-code'.
Mar 06 18:00:15 james-System-Product-Name systemd[1]: Failed to start Wayward Geek InfNoise TRNG driver.
Mar 06 18:00:16 james-System-Product-Name systemd[1]: infnoise.service: Scheduled restart job, restart counter is at 5.
Mar 06 18:00:16 james-System-Product-Name systemd[1]: Stopped Wayward Geek InfNoise TRNG driver.
Mar 06 18:00:16 james-System-Product-Name systemd[1]: infnoise.service: Start request repeated too quickly.
Mar 06 18:00:16 james-System-Product-Name systemd[1]: infnoise.service: Failed with result 'exit-code'.
Mar 06 18:00:16 james-System-Product-Name systemd[1]: Failed to start Wayward Geek InfNoise TRNG driver.

infnoise.service: Bound to unit dev-infnoise.device, but unit isn't active.

The provided systemd service will not start.

$ lsusb
Bus 001 Device 004: ID 0403:6015 Future Technology Devices International, Ltd Bridge(I2C/SPI/UART/FIFO)

$ infnoise -l
ID: 0, Manufacturer: 13-37.org, Description: Infinite Noise TRNG, Serial: 1337-133733r

$ infnoise -D -n
Generated 1048576 bits.  OK to use data.  Estimated entropy per bit: 0.875594, estimated K: 1.834764
num1s:51.100801%, even misfires:0.098816%, odd misfires:0.181163%

$ sc status infnoise
○ infnoise.service - Wayward Geek InfNoise TRNG driver
     Loaded: loaded (/usr/lib/systemd/system/infnoise.service; disabled; preset: disabled)
     Active: inactive (dead)

Jan 06 10:31:13 r912 systemd[1]: infnoise.service: Bound to unit dev-infnoise.device, but unit isn't active.
Jan 06 10:31:13 r912 systemd[1]: Dependency failed for Wayward Geek InfNoise TRNG driver.

$ sudo journalctl -b -u dev-infnoise.device
Jan 13 00:28:36 r912 systemd[1]: Condition check resulted in Bridge(I2C/SPI/UART/FIFO) being skipped.
Jan 13 23:31:00 r912 systemd[1]: Expecting device /dev/infnoise...
Jan 13 23:32:30 r912 systemd[1]: dev-infnoise.device: Job dev-infnoise.device/start timed out.
Jan 13 23:32:30 r912 systemd[1]: Timed out waiting for device /dev/infnoise.
Jan 13 23:32:30 r912 systemd[1]: dev-infnoise.device: Job dev-infnoise.device/start failed with result 'timeout'.

$ sc status infnoise.device
○ infnoise.device - /infnoise
     Loaded: loaded
     Active: inactive (dead)

$ ls -l /dev/infnoise 
inode Permissions Size User Group Date Modified Name
 1001 lrwxrwxrwx     - root root   6 Jan 10:31   /dev/infnoise -> bus/usb/001/004

Running without --daemon and with --debug logs the same thing to the journal.
Commenting BindsTo=dev-infnoise.device and After=dev-infnoise.device from the service unit lets the unit start.

What is binding the service to a symlink (/dev/infnoise) achieving here, and is it really required?
Or how do we fix the device unit from dying?

Systemd version: 255.2
Linux r9 6.6.9-arch1-1 #1 SMP PREEMPT_DYNAMIC Tue, 02 Jan 2024 02:28:28 +0000 x86_64 GNU/Linux

Building on macOS Mojave

Hello guys,

I am trying to build on Mojave but here the error I receive :

Undefined symbols for architecture x86_64:
  "_inmWriteEntropyEnd", referenced from:
      _main in infnoise.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)
make: *** [infnoise] Error 1

Does anybody face this kind of error ? How can I solve it ?
Thank you.

Removal of FTDI library files for Windows needed

FTDI library files are obviously under the copyright of FTDI and not in the public domain.
Removing their files under software/VisualStudio/ftdi and replacing it by a README.md file like this will be a better solution:
https://github.com/jj1bdx/infnoise-windows/blob/master/VisualStudio/ftdi/README.md

FreeBSD and macOS support

Is there any plan to support FreeBSD or macOS?

FYI, I've removed the Linux-dependent part and fix the Makefile for the FreeBSD libraries and the code seems to be working fine for FreeBSD 11.2-STABLE. Patch: jj1bdx@3aafc0a

PGP-Key 0x4E730A3C expired

Hello,
It seems that GPG key 71AE099B262DC0B493E6EE71975DC25C4E730A3C expired on 2022-07-23. I could not find renewed one.

The actual problem is with Debian repository:

Err:4 http://repo.13-37.org stable InRelease
  The following signatures were invalid: EXPKEYSIG 975DC25C4E730A3C Code Signing Key 13-37.org <[email protected]>

leetronics certificate expired

ERROR: cannot verify 13-37.org's certificate, issued by ‘CN=R3,O=Let's Encrypt,C=US’:
Issued certificate has expired.

Error: USB read failed

After ~10 or so generated entropy "chunks" I get the USB read failed. Is this a common problem or something that can affect the entropy pool?
When I execute the command a second time it seems to be up and running (as the systemctl status suggest), but generates an error again after some time.

root@host:~# infnoise --debug --no-output
Generated 1048576 bits.  OK to use data.  Estimated entropy per bit: 0.877488, estimated K: 1.837174
num1s:50.563373%, even misfires:0.111168%, odd misfires:0.160576%
Generated 2097152 bits.  OK to use data.  Estimated entropy per bit: 0.875540, estimated K: 1.834695
num1s:50.465626%, even misfires:0.096236%, odd misfires:0.176725%
Generated 3145728 bits.  OK to use data.  Estimated entropy per bit: 0.874526, estimated K: 1.833406
num1s:50.508445%, even misfires:0.094330%, odd misfires:0.165837%
Generated 4194304 bits.  OK to use data.  Estimated entropy per bit: 0.875321, estimated K: 1.834417
num1s:50.586397%, even misfires:0.102284%, odd misfires:0.152080%
Generated 5242880 bits.  OK to use data.  Estimated entropy per bit: 0.875370, estimated K: 1.834479
num1s:50.569753%, even misfires:0.100282%, odd misfires:0.156254%
Generated 6291456 bits.  OK to use data.  Estimated entropy per bit: 0.875522, estimated K: 1.834672
num1s:50.529542%, even misfires:0.112720%, odd misfires:0.151589%
Generated 7340032 bits.  OK to use data.  Estimated entropy per bit: 0.874715, estimated K: 1.833645
num1s:50.593377%, even misfires:0.128267%, odd misfires:0.143259%
Generated 8388608 bits.  OK to use data.  Estimated entropy per bit: 0.875771, estimated K: 1.834988
num1s:50.497163%, even misfires:0.137012%, odd misfires:0.153046%
Generated 9437184 bits.  OK to use data.  Estimated entropy per bit: 0.875672, estimated K: 1.834863
num1s:50.494457%, even misfires:0.110128%, odd misfires:0.167135%
Generated 10485760 bits.  OK to use data.  Estimated entropy per bit: 0.875675, estimated K: 1.834866
num1s:50.545596%, even misfires:0.107083%, odd misfires:0.168273%
Generated 11534336 bits.  OK to use data.  Estimated entropy per bit: 0.875495, estimated K: 1.834637
num1s:50.426698%, even misfires:0.119628%, odd misfires:0.176682%
Error: USB read failed

root@host:~# systemctl status infnoise.service 
● infnoise.service - Wayward Geek InfNoise TRNG driver
     Loaded: loaded (/lib/systemd/system/infnoise.service; enabled; preset: enabled)
     Active: active (running) since Sun 2024-02-11 20:04:51 CET; 5min ago
       Docs: man:infnoise.service(8)
    Process: 494226 ExecStart=/usr/sbin/infnoise --dev-random --daemon --pidfile /var/run/infnoise.pid (code=exited, status=0/SUCCESS)
   Main PID: 494227 (infnoise)
      Tasks: 1 (limit: 9302)
     Memory: 596.0K
        CPU: 59ms
     CGroup: /system.slice/infnoise.service
             └─494227 /usr/sbin/infnoise --dev-random --daemon --pidfile /var/run/infnoise.pid

Feb 11 20:04:51 host systemd[1]: Starting infnoise.service - Wayward Geek InfNoise TRNG driver...
Feb 11 20:04:51 host systemd[1]: Started infnoise.service - Wayward Geek InfNoise TRNG driver.

Host is Proxmox 8.1 based on Debian 12. Infnoise installed from Debian bookworm repository.

can't open or find multiplier but it's listed

$ lsusb
Bus 001 Device 007: ID 0403:6015 Future Technology Devices International, Ltd Bridge(I2C/SPI/UART/FIFO)
$ sudo infnoise
Error: Can't open Infinite Noise Multiplier.
$ sudo infnoise -l
ID: 0, Manufacturer: 13-37.org, Description: Infinite Noise TRNG, Serial: 1337-XXX
$ sudo infnoise -s 1337-XXX
Error: Can't find Infinite Noise Multiplier with given serial

XXX replaced because i don't know if it should be secret, --debug doesn't show any other info

new release?

Any changes of getting a new release with the latest changes?
Considering no more development has happened the last year, and no new issues have been reported, it's perhaps a good time to do so.

`infnoise` does not claim the USB interface before use

Host: Ubuntu 20.10
infnoise --version (from regular ubuntu apt):

GIT VERSION - 0.3.1+dfsg
GIT COMMIT  - Debian
GIT DATE    - 2019-02-23T17:20:31+00:00

Running infnoise -R results in rsyslogd consuming 100% of a core due to the logs being flooded with:

Jul 10 12:53:20 praxis kernel: [1435136.111410] usb 1-2: usbfs: process 614825 (infnoise) did not claim interface 0 before use

systemd service can't be disabled

config was installed to wrong place. has to be in /lib/systemd/system - not /etc/systemd/

otherwise removing the expected symlink in /etc/systemd doesn't work when doing systemctl disable infnoise

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