SHA-256

SHA-256 (Secure Hash Algorithm 256-bit) is a cryptographic standard developed by the NSA and standardized by NIST. ## How It Works SHA-256 generates a 256-bit (64 character) hash value from any input data. This value is: - **Unique**: Every file produces a different hash - **Deterministic**: Same input = same hash - **Irreversible**: The original file cannot be derived from the hash - **Collision-resistant**: Practically impossible to find two files with the same hash ## Application at Faultrix **Evidence Preservation:** Every uploaded photo immediately receives a SHA-256 hash. This proves that the image has not been altered since upload. **Admissibility Context:** SHA-256 is widely used for integrity verification in digital documentation workflows. Admissibility depends on jurisdiction and case context.