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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?
Continue reading Would `cat /dev/random` be a denial of service to any other users of `/dev/random`?
I need to generate thousands of cryptographic keys. Can I just read the bits from /dev/urandom on a Red Hat system, or do I need to run it through a PRNG? My understanding is that /dev/urandom should be good enough, but I’ve … Continue reading Can I use /dev/urandom for generating cryptographic keys?
Assuming I plugged a HWRNG in to my Linux machine, use OpenSSL to generate a RSA key pair and encrypted some text with AES. Later then, a researcher posted the HWRNG was backdoored. Should I consider those key are safe to use… Continue reading Is it still secure if a cryptographic key generated with OpenSSL while a backdoored HWRNG used?
I have a swift server, where currently authentication is handled through a simple email+hashed password combination. I want to replace this with an access token ( + expiration ) so I can remove the storage of email/password o… Continue reading Token generation and random numbers
Is there a pseudo device-based random data stream/file that can be used in Windows .NET programming in the same way as /dev/random can be read and used as a source of random values on Linux based systems?
I’m not asking whether .NET can provide a pseudo-random number generator type random call such as CryptGenRandom() which appears to use a random seed to create a sequence of PRNG numbers but whether there is a functional equivalent as /dev/random which stores various system events and UI interaction to create a pool of random values that are considered to be crypto secure.
Because /dev/random appears to be similar to any other file on the underlying system, any Linux based programming language can access this truly random stream of data, but C# and other .NET programs don’t (normally) run on Linux systems, and mine certainly don’t.
All online searches and my reading always leads me to information about PRNG calls, which is not the same thing at all.
If there’s any answer to this on here already then I just need more practice on searching for answers I guess!
Continue reading Windows .NET equivalent to Linux /dev/random