US Patent Issued to PQShield on May 19 for "Sharing cryptographic material" (British Inventors)

ALEXANDRIA, Va., May 19 -- United States Patent no. 12,634,136, issued on May 19, was assigned to PQShield Ltd. (Oxford, Great Britain).

"Sharing cryptographic material" was invented by Thomas Prest (Oxford, Great Britain) and Shuichi Katsumata (Oxford, Great Britain).

According to the abstract* released by the U.S. Patent & Trademark Office: "A method includes, at a first communications device: processing encapsulation keys of a plurality of second communications devices using an encapsulation function to generate a symmetric key, an authenticable token, and a ciphertext; and transmitting, to each of the second communications devices, the token and a respective portion of the ciphertext depending on the respective encapsulation key of th...