hashfunktionernes
Hashfunktionernes is a Danish term referring to hash functions. A hash function is a mathematical algorithm that maps data of arbitrary size to data of a fixed size. The output of a hash function is called a hash value, hash code, digest, or simply hash. These hash values are typically shorter than the input data.
Hash functions are designed to be deterministic, meaning that the same input will always produce the same
Key properties of good hash functions include:
Pre-image resistance: It should be difficult to find an input that produces a given hash output.
Second pre-image resistance: It should be difficult to find a different input that produces the same hash
Collision resistance: It should be difficult to find two different inputs that produce the same hash output.
Hash functions have numerous applications in computer science. They are used for data integrity checks, where