>many inputs hash to the same value
?
The chances of a sha256 collision is essentially zero barring a vulnerability being found in sha2. Far more likely for a comet to wipe out earth in your lifetime.
?
The chances of a sha256 collision is essentially zero barring a vulnerability being found in sha2. Far more likely for a comet to wipe out earth in your lifetime.
Yes, but to answer the question if you can find the input from the hash, the answer is no because it's impossible to be 100% certain as many input can hash to the same value.