A hashing algorithm is a mathematical function that shortens the data to a fixed size.



“The Quick Brown Fox Jumps Over The White Lazy Dog”

MD5 Hashing algoritm output


This resultant value is known as hash value.

Uses of Hashing algorithms

  • Speed: due to shortened data,
  • Run calculations on data: Easy to compare shortened values
  • Security: Encrypt Passwords

Popular Hashing Algorithms

MD5, SHA-1, SHA-2, SHA-256,  SHA-384

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