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Questions tagged [trng]

The tag has no usage guidance.

2
votes
1answer
60 views

Mapping between NIST test and TRNG features

Each of the NIST tests are generally explained in Random Bit Generation - Guide to the Statistical Tests. I was wondering if some one can help me understand them better. For example, which tests show ...
2
votes
1answer
80 views

Verifying randomness and uniqueness of TRNG output

We need to verify two claims about a set of numbers: They are random They are unique in the set (the set is about 200 billion (2TB bin storage)) Supposedly, the numbers were generated by a TRNG (...
0
votes
0answers
21 views

Increase entropy_avail on Cavium [migrated]

The device is Octeon by Cavium which contains a RNG hardware unit. OS show Current entropy pool size is 4096 bytes but entropy_avail is very low.The device crypto modules has ansi_cprng.ko present ...
1
vote
2answers
98 views

What are known metrics for TRNG?

I was wondering what the known metrics are for studying the randomness of TRNG (besides NIST tests). For example, for PUFs, there are known metrics such as uniformity, uniqueness, BER, etc.
3
votes
3answers
198 views

Usage and limitations of sponge functions for PRNG

This HRNG uses SHA3 as a sponge function (in its device driver) to inflate ots raw source output to many MByte/s. They compare this output rate to the output of other HRNG which don't use a sponge ...
7
votes
3answers
622 views

Perform ENT / Dieharder on raw entropy or on whitenened entropy?

In this question about hardware random number generator, a discussion about the following question has been started: In order to test RNG's and entropy's quality, should test suites like ENT and ...
7
votes
3answers
770 views

Differences between methods of hardware random number generators

I'm reading about various hardware random number generators which - among others - implement the following approaches: Analog-to-digital converter noise Johnson–Nyquist noise Reverse biased ...
6
votes
2answers
245 views

Are my random numbers really “bad” or is that a statistical effect which “must” happen from time to time?

My software uses a TRNG (entropy source) which is part of an MCU. A check of random numbers generated by my software, carried out by a testing authority revealed a problem, which I have to examine ...
7
votes
2answers
487 views

Random number generator issue

I wrote a litte random generator using a geiger tube. I use a 16bit timer that overflows every ~1ms; when i get a reading form the geiger (~36count/minute), i save the current timer value as "random ...
4
votes
3answers
456 views

What is proper use of a True Random Number Generator?

Let's say I have a true random number generator TRNG. Random numbers are generated on demand from a HW-entropy source, resulting in a 32-bit random value each time it is called. I have to fill an ...
0
votes
2answers
316 views

Algorithm to generate ECDSA keys with random number generator

I have a certified random number generator (TRNG, it does not matter what it is for the question). I would like to use it as a source to generate secp384r1 ECDSA keys. What is the algorithm I should ...
3
votes
2answers
583 views

Public Randomness-Based Random Number Generator using Mobile Phone?

I have an idea to create a True Random Number Generator that use randomness source from a smartphone sensors. My idea is to collect sensors data from a lot of smartphone using mobile apps and then the ...
1
vote
2answers
314 views

Open-source usb TRNG and US standards - Help choosing [closed]

I came across the ChaosKey and I remember the time I came accros the entrypy key that was always out of stock. I would really want one to play with, I would like the best open source I can get for ...
1
vote
3answers
155 views

Digital Certificates genereted from Hardware Security Module

Software library without hardware based source of entropy will provide enough security to generate digital certificates. However Hardware security Modules provide hardware based source of entropy and ...
7
votes
4answers
1k views

When is an RNG a CSPRNG, a CSRNG, or a TRNG?

In a recent answer to a question about CSPRNGs, it was stated that… Nondeterministic algorithms where there is no such requirement, and ideally could be replaced by a true random generator. ...