Module integrity 

Integrity primitives.

Two digests with two distinct roles, per the architecture:

• CRC32C (Castagnoli) guards physical framing and header bytes. It is a corruption detector, not a security boundary.
• SHA-256 is the durable archival identity of the whole reconstructed source. Byte comparison remains the court authority during development; the digest is the fast, portable receipt.

Structs

Sha256Hasher

A streaming SHA-256 hasher that hides the dependency’s concrete type.

Functions

crc32c

CRC-32C (Castagnoli), reflected, init/xorout 0xFFFFFFFF.

sha256

SHA-256 of a byte slice.

to_hex

Lower-case hex encoding (no external dependency).