SHA-1 Hash Generator

SHA-1 (Secure Hash Algorithm 1) is a cryptographic hash function that creates a 160-bit fingerprint of data. Developed by NSA, widely used since 1995.

For cryptographic purposes — no. In 2017, Google demonstrated a practical collision (two different files with the same hash). For non-critical file integrity checks, SHA-1 is still applicable.

Git uses SHA-1 to identify commits. Many legacy systems still rely on SHA-1. For new projects, SHA-256 is recommended.

SHA-1 creates a longer hash (160 bits vs 128 bits for MD5) and is considered more resistant. But both algorithms are outdated for cryptographic purposes.