What Is the Difference between a Preimage Attack and a Collision Attack in Hashing?
A preimage attack involves finding the original input (x) that maps to a specific, known hash output (H(x)). It is a reversal of the function.
A collision attack involves finding two different inputs (x and y) that produce the same hash output (H(x) = H(y)). Both attacks compromise the integrity of a hash function but target different security properties.
Collision resistance is often considered a stronger security requirement.
Glossar
Preimage Attack
Exploitation ⎊ A preimage attack, within cryptocurrency and financial derivatives, targets the cryptographic hash functions securing blockchain transactions and digital signatures.
Collision Attack
Exploit ⎊ A collision attack, within the context of cryptocurrency derivatives and options trading, represents a sophisticated market manipulation strategy leveraging vulnerabilities in pricing models or exchange infrastructure.
Collision Resistance
Framework ⎊ Collision resistance, within the context of cryptocurrency, options trading, and financial derivatives, fundamentally concerns the computational infeasibility of finding two distinct inputs that produce the same output from a cryptographic hash function or similar deterministic process.