Definitions for "One-way hash function"
An algorithm that turns a message into a single string of digits. "One way" means that it is almost impossible to derive the original message from the string of digits. The calculated message digest can be compared with the message digest that is decrypted with a public key to verify that the message has not been tampered with.
In cryptography, an algorithm that generates a fixed string of numbers from a text message. The "one-way" means that it is extremely difficult to turn the fixed string back into the text message. One-way hash functions are used for creating digital signatures for message authentication.
a mathematical function that takes a message string of any length (pre-string) and returns a smaller fixed-length string (hash value)
an important crypto graphic primitive for digital signatures and crypt