ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,537,680, issued on Jan. 27, was assigned to Dropbox Inc. (San Francisco).
"Secure caching of namespace keys" was invented by Jonathan Lee (Seattle) and Stas Ilinskiy (Seattle).
According to the abstract* released by the U.S. Patent & Trademark Office: "A system, method, and computer readable medium is disclosed for accessing an object that is encrypted within at least a tertiary-level encryption key scheme. This includes receiving a request to access blocks making up an object by content management system and using a top-level encryption key from a key management service, a namespace encryption key from a namespace encryption key database, and a respective block encryption keys prote...