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I’m new to the /dev/random and /dev/urandom pipes in general and have an application calling from /dev/urandom which I’m attempting to inject entropy into. I’d prefer not to change the source for this application, but an additional proces… Continue reading Does rngd -r /path/to/file inject into /dev/urandom in addition to /dev/random?
Are there programs to determine if the tested computer supports the RDSEED and RDRAND instructions?
When using CSPRNG (crypto secure pseudo random number generation) functions seeding is an important step. So what is the best way to seed a random number function?
Continue reading What is the correct way to seed CSPRNG functions?
my api is:
localhost/api/aut/1111111111111111
I wanted a script that generate a code of 16 numeric and test possibility the result 200 or 404
I know this is possible because people have mentioned doing it. Given the XorShift128+ algorithm, how can I predict the next numbers given 15 integers generated through Math.floor(Math.random() * (max – min +1) + min). I have tried modif… Continue reading How can I predict javascript Math.random method given integers?
My teacher challenged us to find out which seed was used to generate some random numbers. I would like to know if it is possible to decipher the seed using the generated numbers (break the linear congruence algorithm). If possible, I ask y… Continue reading With the random numbers generated, can I know which RNG seed was used? [migrated]
Say I talk to a developer who is using some output of a Pseudo-random number generator in order to do some security task. I know based upon common knowledge that only Cryptographically Secure Pseudo Random Numbers should be used.
However,… Continue reading How can I validate that a PRNG’s output is insecure and predictable?
This question already has an answer here:
Is a rand from /dev/urandom secure for a login key?
4 answers
Simply put, what … Continue reading What is the difference between /dev/random and /dev/urandom? [duplicate]
Considering the absolutely critical role that entropy plays in the generation of keys, I am wondering if there is an easy way to use diceware (true random numbers) to generate an OpenPGP key with gnupg?
If I have a JavaScript CSPRNG such as isaac.random(), and I seed it using a truly random number T as such: isaac.seed(T), does this make the result of the CSPRNG more, less, or equally random?
I would imagine that with a CSP… Continue reading If I seed a CSPRNG with a truly random number and call the output, does this make the number more, less or equally "random"?