Questions tagged [trng]
A TRNG (True Random Number Generator) is hardware that uses nondeterministic physical processes to randomly generate numbers.
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What issues are there while using Linux's /dev/urandom for generating cryptographic keys?
As of Linux 5.1 the /dev/random no longer uses the blocking pool. There is a talk about the change on the page Removing the Linux /dev/random blocking pool
I ...
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Why is the output of a True Random Number Generator (TRNG) insecure after it has been compressed?
I came across the following statement regarding true random number generators (TRNG):
A “P1 medium” [AIS31] true random number generator (TRNG) may not be directly used due to cryptographic reasons. ...
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Will OTP provide quantum resistance under 5 conditions?
We already have quantum computing, but when quantum computing becomes commercially available there is a problem for many but not all encryption algorithm.
The One-Time-Pad or OTP is the one and only ...
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Hardware Gaussian random numbers for lattice-based cryptography
I have been recently reading about lattice-based cryptography.
I read that a key aspect of such protocols rely on added Gaussian noise on lattices, and which therefore require highly efficient and ...
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1answer
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Strong RNG for encryption/authentation algo
I saw in the market several hardware options for creating strong RNG to produce strong KEYS:
HSM
TPM internal TRNG
Intel RDSEED (TRNG)/RDRAND
My questions are;
What is the strength/entropy ...
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What machine learning accuracy is assumed to be predictable for TRNG/PUF application?
In regular machine learning (ML) applications, usually an accuracy of greater than 95% is desired.
In an ideal TRNG/PUF applications, unpredictable behavior (50% accuracy with ML models) is desired. ...
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1answer
286 views
“Jitterentropy” vs CPU RDRAND in VeraCrypt 1.24
Veracrypt 1.24 just came out. It uses a true random number generator based on hardware events; namely, on CPU timing jitter, or "Jitterentropy".
As an alternative to CPU RDRAND, I am a bit jittery ...
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212 views
How can I quickly generate thousands of letters randomly, and strongly mitigate the risk of any compromise?
I want to generate English letters in a truly random manner without resorting to hand-thrown dice, despite their advantages. Rolling dice would be too slow and tiring as I need four thousand letters.
...
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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 ...
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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 (...
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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.
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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 ...
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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 ...
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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 ...
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2answers
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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 ...
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651 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 ...
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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 ...
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2answers
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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 ...
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2answers
956 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 ...
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428 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 ...
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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 ...
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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. Example: ...
