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README.md

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+# @addideas/sefidrop
+
+Sefidrop provides browser-side E2EE file encryption helpers and backend File Drop contract primitives.
+
+It includes:
+
+- recipient key generation, fingerprinting, encryption and decryption helpers;
+- `filedrop.v1` discovery, upload commit and event schemas;
+- local ciphertext storage adapter plus a storage interface for object stores;
+- signed webhook envelope helpers for standalone service integrations.
+
+The package is intended to be consumed by host applications such as Interling, and can be served as its own API product.
+
+See `docs/return-file-key-model.md` for the multi-recipient direction needed for encrypted deliverables returned to clients and contractor assignment workflows.