US 11,968,293 B2
Private key management
Wei-Hsiang Hsiung, Taipei (TW); Chun-Shuo Lin, Tainan (TW); Wei-Jie Liau, Taoyuan (TW); and Cheng-Ta Lee, Taipei (TW)
Assigned to International Business Machines Corporation, Armonk, NY (US)
Filed by International Business Machines Corporation, Armonk, NY (US)
Filed on Nov. 18, 2020, as Appl. No. 16/950,993.
Prior Publication US 2022/0158824 A1, May 19, 2022
Int. Cl. H04L 9/08 (2006.01); H04L 9/14 (2006.01); H04L 9/40 (2022.01)
CPC H04L 9/083 (2013.01) [H04L 9/14 (2013.01); H04L 63/0281 (2013.01); H04L 63/166 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method comprising:
obtaining, in a first message from a source entity and in a second message from a target entity and by a set of processors at a security proxy, context information of a handshake between the source entity and the target entity;
transmitting, by the set of processors at the security proxy, the context information from the security proxy to a key manager, the key manager maintaining a first private key of the security proxy;
transmitting, by the set of processors at the security proxy, historical context information of a historical handshake involving the source entity to the key manager;
receiving, by the set of processors at the security proxy, a first handshake message from the key manager, the first handshake message generated at least based on the context information and the historical context information and signed with the first private key; and
transmitting, by the set of processors at the security proxy, the first handshake message to the target entity.