Cryptographic Hash Functions

Definition ∞ Cryptographic hash functions are mathematical algorithms that transform an input into a fixed-size string of characters, known as a hash value. These functions possess specific properties, including determinism, resistance to collisions, and one-way operation, making it computationally infeasible to reverse the process. They are fundamental to blockchain technology, ensuring data integrity and security by creating tamper-evident records. Each block in a blockchain is linked to the previous one using these unique hash values.
Context ∞ In crypto news, cryptographic hash functions are frequently mentioned when discussing the security and immutability of blockchain networks. Any vulnerability or breakthrough in breaking these functions would have severe implications for the entire digital asset ecosystem. Research into quantum-resistant hashing algorithms represents a critical area of ongoing development to safeguard against future computational threats.