Questions tagged [devrandom]

The tag has no usage guidance.

Filter by
Sorted by
Tagged with
4
votes
1answer
127 views

Is pressing random keys a secure way to seed a key generator?

There's a couple of programs that I've been using recently that ask you to type random keys as a source of randomness to seed an RNG for key generation. Is this considered a good practice still, or ...
1
vote
1answer
272 views

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?
2
votes
1answer
509 views

Can I use /dev/urandom for generating cryptographic keys? [duplicate]

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 ...
3
votes
2answers
128 views

Is it still secure if a cryptographic key generated with OpenSSL while a backdoored HWRNG used?

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 ...
2
votes
2answers
150 views

Token generation and random numbers

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 ...
2
votes
1answer
728 views

Windows .NET equivalent to Linux /dev/random

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 ...