🔐 Cryptographic Message Digest Generator
SHA Hash Generator
Generate SHA-256, SHA-512, SHA-384, and SHA-1 cryptographic hashes using the Web Crypto API.
Input Byte Size
13 bytes
About Cryptographic Hash Functions
A cryptographic hash function maps arbitrary-length input to a fixed-length output (the "digest"). Key properties:
- Deterministic: The same input always produces the same hash.
- One-way: It is computationally infeasible to reverse-engineer the input from the hash.
- Avalanche effect: A single-bit change in input produces a completely different hash.
- Collision-resistant: It is infeasible to find two different inputs that produce the same hash (SHA-1 is broken for this property).
SHA-256 (from the SHA-2 family) is the industry standard for TLS certificates, Git commits, Bitcoin proof-of-work, and file integrity verification. SHA-1 was deprecated by NIST in 2011 and should only be used for legacy compatibility.