The SHA256 Hash Generator tool will allow you to generate SHA256 hash for any string. You can give input as a plain text value or hex value. This SHA256 hash generator will take input from the user, process the data with the SHA256 algorithm, and then return the output as the 32-bit hash value. SHA256 algorithm is a successor algorithm of the SHA1 algorithm. The SHA256 algorithm is generally used for many purposes like software digital signatures verification, password validations, hash authentications, etc.
SHA256 stands for Secure Hash Algorithm 256. SHA256 algorithm is a message-digest algorithm. It will compute a hash value in cryptography. SHA256 is used to secure data like Blockchain and Bitcoin transactions. It is a set of cryptographic hash functions and is designed by the National Security Agency(NSA). SHA256 algorithm is more reliable than the SHA1 hashing algorithm.
The SHA-256 hashing algorithm is currently one of the most widely used hashing algorithms as it hasn’t been cracked yet and the hashes are calculated quickly in comparison to the other secure hashes like the SHA-512. It is very well established but the industry is trying to slowly move towards the SHA-512 which is more secure as experts claim SHA-256 might be vulnerable very soon.
Generally, Software distribution companies and websites will use this type of hashing algorithm to transfer the software to the client securely. It provides full security and integrity to the clients. It's like a signature, it confirms that the file is as it is. The algorithm is so powerful that it will take milliseconds or seconds to calculate the hash of the file whether how big it is.
We have used many things that have SHA256 in use like, the websites that have sign-up forms, ATM cards, and its authentications, etc. Let's suppose a scenario of sign up and login mechanism. When you first sign up with your username and password, the password will be stored in the database as a hash value that is hashed by any of the hashing algorithms. Now when you try to log in, your password will first be hashed with the hashing algorithm, and then it will be matched with the hash value that is stored in the database. If the hashed value is matched with the database hash value then the login will successful.