what is hash function in cryptography?
![digitalcoin blockchain cryptoexchange digitalexchange](https://mir-s3-cdn-cf.behance.net/project_modules/max_1200/4f9485182250883.652a3e96cf4a9.jpg)
Cryptographic hash functions are programs that use a mathematical function, like an algorithm, to convert information to a hexadecimal form. Hash function is a hash algorithm that has special properties desirable for a cryptographic application. A cryptography hash function is a mathematical algorithm that takes a data input often referred to as a message and produces a fixed length encrypted output.