US 12,445,292 B2
External key authentication and regeneration
Mark D. Hetherington, Crystal Lake, IL (US); Jorn Lyseggen, London (GB); Edgardo M. Cruz-Zeno, Round Lake, IL (US); Nai Sum Wong, Palatine, IL (US); and Ming Dai, Buffalo Grove, IL (US)
Assigned to BKey, Inc., Schaumburg, IL (US)
Filed by BKey, Inc., Schaumburg, IL (US)
Filed on Jul. 11, 2024, as Appl. No. 18/770,578.
Claims priority of provisional application 63/513,114, filed on Jul. 11, 2023.
Prior Publication US 2025/0023721 A1, Jan. 16, 2025
Int. Cl. H04L 9/32 (2006.01); H04L 9/08 (2006.01)
CPC H04L 9/3236 (2013.01) [H04L 9/0825 (2013.01); H04L 9/0869 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A method, comprising:
identifying a first instance of a first key seed for an external key;
generating a first instance of a second key seed from a first instance of first data from a first source;
computing a mapping function between the first instance of the first key seed and the first instance of the second key seed, wherein the mapping function is stored and the first instance of the first key seed and first instance of the second key seed are discarded;
generating a second instance of a second key seed from second data from a second source;
applying the mapping function to the second instance of the second key seed to generate a second instance of the first key seed; and
regenerating the external key using the second instance of the first key seed.