All Questions
4 questions
1vote
1answer
526views
Feeding entropy pool with my own data [duplicate]
Let's state that I have a huge bunch of truly unpredictable random data in file "random.bin". The random data has been created outside of my system and has been securely transfered into my ...
- 111
4votes
1answer
845views
Does rngd -r /path/to/file inject into /dev/urandom in addition to /dev/random?
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 ...
- 143
9votes
1answer
5kviews
Is reading from /dev/urandom on macOS Catalina a safe way to produce cryptographically secure data?
I'm reading a lot about entropy on macOS... I know it doesn't use Yarrow anymore as per this FIPS 140-02 doc a NIST compliant DRBG. I read a lot: https://github.com/briansmith/ring/pull/398 How ...
- 699
3votes
1answer
646views
Would `cat /dev/random` be a denial of service to any other users of `/dev/random`?
As in the question. Wouldn't cat /dev/random decrease the entropy estimate until it blocks, which forces the random device to block for all applications on the current system?
- 157
