US Patent Issued to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES on Jan. 28 for "Selective data disclosure via a block chain" (French Inventor)

ALEXANDRIA, Va., Jan. 29 -- United States Patent no. 12,212,661, issued on Jan. 28, was assigned to COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES (Paris).

"Selective data disclosure via a block chain" was invented by Christine Hennebert (Grenoble, France).

According to the abstract* released by the U.S. Patent & Trademark Office: "The present invention relates to a method for selective disclosure of confidential data of a first user to a second user of a blockchain (450). The first user is equipped with a deterministic hierarchical key portfolio (410) and selects a leaf of the tree of the portfolio as an emitter account. A secret key is derived from the chain code of this emitter account and the data to be disclosed are e...