Crate iso_cenc 

Sans-IO ClearKey ISO Common Encryption (sample keystream).

Callers own keys and container parsing. This crate only applies AES under ISO/IEC 23001-7 schemes to byte slices. Policy: workspace ADR-0011.

Stage 1: Scheme::Cenc (AES-128-CTR) with optional subsample ranges.

Structs

Pattern

Crypt/skip block pattern (tenc / pattern encryption).

Subsample

One subsample: clear bytes then protected bytes (ISO CENC subsample).

Enums

Error

ClearKey / CENC sample crypto error.

Scheme

Protection scheme (schm.scheme_type).

Functions

decrypt_cenc

Decrypt a sample in place under Scheme::Cenc.

encrypt_cenc

Encrypt a sample in place under Scheme::Cenc (same CTR keystream as decrypt).

iv_from_8

Build a 16-byte CTR IV from an 8-byte per-sample IV (high 8 = IV, low 8 = 0).

iv_from_constant

Build a 16-byte CTR IV from a constant IV of size 8 or 16.