#NIST SP 800-90A is a publication with the title Recommendation for #RandomNumber Generation Using Deterministic Random Bit Generators.

The publication contains the specification for three allegedly cryptographically secure #pseudorandom number generators for use in #cryptography : #HashDRBG (based on hash functions), HMAC DRBG (based on HMAC), and CTR DRBG.

https://en.wikipedia.org/wiki/NIST_SP_800-90A

#Olvid #Chiffrement

Chapitre 10.1:
https://olvid.io/assets/documents/2020-05-09_Olvid-specifications.pdf

Roll the Radioactive Dice for Truly Random D&D Play - When you have a bunch of people gathered around a table for a “Dungeons & Drag... - https://hackaday.com/2022/11/02/roll-the-radioactive-dice-for-truly-random-dd-play/ #randomnumbergenerator #radioactivity #pseudorandom #mischacks #autunite #uranium #geiger #dice #rng

Roll the Radioactive Dice for Truly Random D&D Play

https://hackaday.com/2022/11/02/roll-the-radioactive-dice-for-truly-random-dd-play/

#randomnumbergenerator #radioactivity #pseudorandom #MiscHacks #autunite #uranium #geiger #dice #rng

Challenge: Given a 33 bit shift register based random number generator, shifting 32 times to make a random integer, we observe that a given value will always appear twice in the sequence. Generally unevenly spaced. How to find a value which has the closest repeat?

We could run for 2^33 iterations and keep a record in a many gigabyte array, but I imagine there's a better way.

Boosts OK!

@ColinTheMathmo

#math #maths #polynomials #lfsr #prng #pseudorandom

#NIST SP 800-90A ("special publication") is a publication by the National Institute of Standards and Technology with the title Recommendation for #RandomNumberGeneration Using Deterministic Random Bit Generators ( #DRBG ). The publication contains the specification for three allegedly cryptographically secure #pseudorandom number generators for use in #cryptography : Hash DRBG, #HMAC DRBG, and CTR DRBG.

#chiffrement
#Cryptographie
#cybersécurité

https://en.wikipedia.org/wiki/NIST_SP_800-90A

In March 2021 I was obsessed with Langton's Ant experiments, but eventually after generating thousands of images of various walks I got bored.

This morning, I came up with an idea: how about adding primality check to the algorithm? For example if the current step number is a prime number, reverse walk direction.

Result?

More irregular, more interesting walk paths!

#langtonAnt #ants #pseudoRandom #generatedArt #iSuckAtHashtags