Struct DualPayloadEmbedder 

pub struct DualPayloadEmbedder;

Dual-payload deniable steganography adapter.

Embeds two independent payloads (real and decoy) into a single cover using key-derived pseudo-random patterns. Each key produces a deterministic but non-overlapping set of embedding positions, ensuring that:

• Extracting with the primary key yields the real payload
• Extracting with the decoy key yields the decoy payload
• No observer can prove which payload is “real” vs “decoy”

The implementation uses ChaCha20 PRNG seeded with SHA-256 hashes of the keys to generate reproducible embedding patterns.

Implementations

impl DualPayloadEmbedder

pub const fn new() -> Self

Create a new dual-payload embedder.

Trait Implementations

impl Default for DualPayloadEmbedder

fn default() -> Self

Returns the “default value” for a type.

impl DeniableEmbedder for DualPayloadEmbedder

fn embed_dual( &self, cover: CoverMedia, pair: &DeniablePayloadPair, keys: &DeniableKeySet, _embedder: &dyn EmbedTechnique, ) -> Result<CoverMedia, DeniableError>

Embed both the real and decoy payload in cover.

fn extract_with_key( &self, stego: &CoverMedia, key: &[u8], _extractor: &dyn ExtractTechnique, ) -> Result<Payload, DeniableError>

Extract a payload from stego using the provided key.