US Patent Issued on Oct. 20 for "End-to-end email encryption using a public key distribution framework" (Illinois Inventor)

ALEXANDRIA, Va., Oct. 21 -- United States Patent no. 12,771,540, issued on Oct. 20.

"End-to-end email encryption using a public key distribution framework" was invented by Kishore Swaminathan (Willowbrook, Ill.).

According to the abstract* released by the U.S. Patent & Trademark Office: "Described is a framework for associating and distributing public keys linked to email identifiers. In this system, an Internet domain specifies a Domain Key Authority (DKA) via a DNS record. The DKA collects, stores, and serves public keys for email IDs under that domain, verifying the binding between each email ID and its public key without relying on certificates or webs of trust. Multiple DKAs collectively form a logical infrastructure for distributing...