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5 votes
3 answers
3k views

Why is the output of a True Random Number Generator (TRNG) insecure after it has been compressed?

I came across the following statement regarding true random number generators (TRNG): A “P1 medium” [AIS31] true random number generator (TRNG) may not be directly used due to cryptographic reasons. ...
Jordan's user avatar
  • 51
-2 votes
1 answer
120 views

If an algorithm can not produce a true random stream, then an algorithm can not alter its entropy [closed]

Can a transform lower the Kolmogorov entropy of a true random stream and then restore that stream with out loss. If not true then this means a transform can not raise or lower the entropy.
Jon Hutton's user avatar
1 vote
3 answers
3k views

Is it possible to compress a random sequence with high entropy?

I have an algorithm that generates a pseudorandom sequence with a length of 100k and high entropy. I would like to check the quality of its randomness. So, I used a popular software program to ...
David's user avatar
  • 113
0 votes
1 answer
111 views

How to compare two CSPRNGs? [duplicate]

Let's say I am given to CSPRNGs: RNG1 and RNG2. I want to select the best one of the two for cryptography. How should I do it? Any of the two RNGs can be initialized with a secret key during tests and ...
daruma's user avatar
  • 385
-1 votes
1 answer
363 views

data structure of random / compressed data

can anybody explain to me what data structure results after data is compressed? I just try to find out the difference between random data and compressed data, the entropy of both is very high while ...
tom's user avatar
  • 397