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Questions - hash-collision

Trucating FNV hash

I'm using 32-bit FNV-1a hashing, but now I want to reserve one of the bits to hold useful information about the input key. That is, I want to use only 31 of the 32 bits for hash and 1 bit for someth...
test-img

codechimp

hash

hash-collision

fnv

Votes: 0

Answers: 1

Latest Answer

Removing a single bit from a 32-bit hash code will have a larger effect than a 32/31 increase in the collision rate. To see why, note that there are 232 possible 32-bit hashes and 231 possible 31-bit ...
test-img

templatetypedef

Java, how to hash a string with low collision probability, specify characters allowed in output to decrease this

Is there any way to hash a string and specify the characters allowed in the output, or a better approach to avoid collisions when producing a hash of 8 characters in length. I am running into a situat...
test-img

tpngr999

java

hash

cryptography

hashcode

hash-collision

Votes: 0

Answers: 0

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