Hash Generator
Calculate MD5, SHA-1, SHA-256, and SHA-512 hashes of a text.
What is a Hash?
A hash function is an algorithm that converts an input of data of any size into a fixed-size string of text. This output, known as a 'hash', acts as a unique digital fingerprint for the original data. A small change in the input produces a completely different hash.
What are Hashes used for?
- File Integrity Verification: When downloading a file, you can compare its hash with the one published by the author. If they match, the file has not been altered.
- Password Storage: Databases do not store your password, but its hash. When you log in, the hash of the password you enter is calculated and compared with the stored one.
- Digital Signatures and Cryptocurrencies: They are a fundamental component in blockchain technology and in verifying the authenticity of digital documents.
Recommendation: For most modern uses, SHA-256 is the recommended standard. The MD5 and SHA-1 algorithms are considered obsolete and vulnerable, and should only be used for compatibility reasons with older systems.