Key Terms
- Cryptographic Hash Function: A function that takes an input (or ‘message’) and returns a fixed-size string of bytes. It is designed to be a one-way function, meaning it is computationally infeasible to reverse the process or find the original input from the hash value.
- Collision: In hash functions context when two different inputs result in an equal output.
- Computational Infeasibility: Pertains tasks that are hardly doable with available resources within reasonable timeframes because of computation complexity involved.
What is Strong and Weak Collision Resistance in Cryptography?
Cryptographic hash functions are key tools in such fields as they permit the secure conversion of data into fixed-size digits. In the era of the internet when data security is very important, cryptography has a great significance in protecting non-public information. The two most vital characteristics of cryptographic hash functions include strong collision resistance and weak collision resistance. For any protocol or system to be considered secure, one must understand these attributes.