What is a Cryptographic Hash?
A cryptographic hash is a mathematical algorithm that maps data of arbitrary size to a bit string of a fixed size. This bit string is called a "hash" or "digest." It is a one-way function: you can easily create a hash from data, but it is computationally impossible to recreate the original data from the hash.
Supported Algorithms:
- SHA-256: Part of the SHA-2 family, widely used in blockchain, SSL certificates, and file integrity checks.
- SHA-512: A more powerful version of SHA-256, offering even higher security for highly sensitive data.
- SHA-1: An older algorithm. While faster, it is no longer considered secure against well-funded attackers and is mainly used for legacy compatibility.
Why use ToolShelf for Hashing?
Security professionals and developers should never paste sensitive data (like passwords or API keys) into a website that performs hashing on a server. If the server is compromised, your data is exposed. ToolShelf uses the Web Crypto API, meaning the hashing happens 100% inside your computer's memory. Your data is never sent over the internet.