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Entropy is a measure of how predictable the outcome of a random process is, or how much uncertainty one has about an unknown quantity in one's state of knowledge, defined in terms of the probability distribution on possible outcomes or quantities.

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If a SHA256 hash with high entropy is then hashed with one made from low entropy, is the res...

My thinking is the final string would capture the same amount as the original randomness as what we started with because the "extra" entropy can not be captured and is lost. … Would hashing something with high entropy with something simpler ever cause a lower amount of randomness or does it only go up? Thanks to anyone who can help explain this a little better. …