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@ek
16 Jun 2023
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on: I have been asked to ELI5 cryptographic hashes to kids (grade 8).. Is this ok?
bitcoin
You can fix your example by using
salt || MD5(grade || salt || secret)
as the code on the lockers.
salt
is just a random value which makes sure that every hash will be different.
secret
is a secret value which only teachers know. This prevents that students can just try every grade and compare hashes.
With
||
I mean concatenation.
This may be too complicated for 8 graders now though.
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100 sats
salt || MD5(grade || salt || secret)as the code on the lockers.saltis just a random value which makes sure that every hash will be different.secretis a secret value which only teachers know. This prevents that students can just try every grade and compare hashes.||I mean concatenation.