What is SHA-256?
SHA-256, or Secure Hash Algorithm 256-bit, is a cryptographic hash function designed to securely verify data integrity and authenticity. It is part of the SHA-2 family of hash functions and is known for its reliability and widespread use in security applications.
This function takes an input, such as a password, file, or any digital data, and processes it to produce a fixed-size hash output that is 256 bits long. The output is unique to the input, meaning even a small change in the input will result in a vastly different hash.
In the context of security systems, SHA-256 is essential for encrypting sensitive data, ensuring secure communication between devices, and verifying the authenticity of stored information. It is frequently used in smart home security, business alarm systems, and automated systems to safeguard data from tampering or unauthorized access.