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How can LCG based stream ciphers be broken?

For the cipher formula to work, $A$ must be coprime to $m$ and exists, which means ${(S_2 - S_3)}\over{(S_1 - S_2)}$ must also be coprime to $m$ and also exists. After excluding duplicate factors of ...
DannyNiu's user avatar
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1 vote
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Is there a in-depth paper published about the Cloudflare's Lavarand and their CSPRNG?

You've already linked to the patent here. As usual, it's not a great read as that's not the purpose of a patent. You should be able to get fair idea though of how the original one worked - sensor ...
Paul Uszak's user avatar
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5 votes

What is better source of random bytes: Yubikey or /dev/random (or both)?

Let's say I need to generate a key, I have these three options as to where to get random data: Yubikey (gpg-connect-agent 'SCD RANDOM 16384' /bye) ...
dev urandom's user avatar
9 votes
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What is better source of random bytes: Yubikey or /dev/random (or both)?

You should typically use the OS CSPRNG, which would be /dev/urandom or /dev/random. The reason is that the OS CSPRNG is ...
bk2204's user avatar
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