Struct KnownGoodDb 

pub struct KnownGoodDb { /* private fields */ }

Zero-false-positive known-good file hash database.

Backed by a memory-mapped binary file containing sorted 32-byte SHA-256 hashes. Binary search provides exact matching — no probabilistic structure, making it safe for forensic exclusion decisions.

Implementations

impl KnownGoodDb

pub fn open(path: &Path) -> Result<Self, KnownGoodError>

Open a binary file containing sorted 32-byte SHA-256 hashes. File must be a multiple of 32 bytes.

pub fn is_known_good(&self, sha256: &[u8; 32]) -> bool

Returns true iff the hash is present in the database. Zero false positives — safe for forensic exclusion decisions.

pub fn len(&self) -> usize

Number of hashes in the database.

pub fn is_empty(&self) -> bool