What is a hash function in cryptography?
A hash function is a mathematical algorithm that transforms input data into a fixed-size string of characters, which is typically a digest that uniquely represents the data.
How is a hash function different from encryption?
Hash functions are one-way processes that generate a unique output for a given input, while encryption is reversible and allows the original data to be retrieved.
Can you give me an example of a hash function?
Sure! Common examples of hash functions include SHA-256 and MD5. SHA-256 is widely used in blockchain technology.
What are the applications of hash functions?
Hash functions are used in various applications, including data integrity verification, digital signatures, and password storage.
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