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WatermarkEmbedder

alimentar::format::piracy

Struct WatermarkEmbedder 

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pub struct WatermarkEmbedder { /* private fields */ }
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Watermark embedder for protecting datasets

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impl WatermarkEmbedder

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pub fn new(seller_key: [u8; 32]) -> Self

Create a new embedder with seller secret key

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pub fn embed( &self, batches: &[RecordBatch], watermark: &Watermark, ) -> Result<Vec<RecordBatch>>

Embed watermark into dataset batches

Modifies LSB of float values to encode buyer identity.

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pub fn extract(&self, batches: &[RecordBatch]) -> Option<BuyerIdentity>

Extract watermark from dataset (requires seller key)

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pub fn verify(&self, batches: &[RecordBatch], buyer_hash: &[u8; 32]) -> bool

Verify if dataset contains specific buyer’s watermark

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