US 11,838,412 B2
Secret regeneration from distributed shares
Ethan L. Miller, Santa Cruz, CA (US); and Andrew R. Bernat, Mountain View, CA (US)
Assigned to PURE STORAGE, INC., Santa Clara, CA (US)
Filed by Pure Storage, Inc., Mountain View, CA (US)
Filed on Sep. 27, 2022, as Appl. No. 17/954,246.
Application 17/954,246 is a continuation of application No. 17/120,967, filed on Dec. 14, 2020, granted, now 11,489,668.
Application 17/120,967 is a continuation of application No. 16/278,551, filed on Feb. 18, 2019, granted, now 10,887,099, issued on Jan. 5, 2021.
Application 16/278,551 is a continuation of application No. 15/668,529, filed on Aug. 3, 2017, granted, now 10,211,983, issued on Feb. 19, 2019.
Application 15/668,529 is a continuation of application No. 14/871,662, filed on Sep. 30, 2015, granted, now 9,768,953, issued on Sep. 19, 2017.
Prior Publication US 2023/0021403 A1, Jan. 26, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 9/08 (2006.01)
CPC H04L 9/0891 (2013.01) [H04L 9/085 (2013.01); H04L 9/0822 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method, comprising:
distributing unencrypted shares of a first secret and encrypted shares of the first secret to storage devices of a storage system;
regenerating the first secret from at least a subset of a combination of distributed unencrypted shares of the first secret and distributed encrypted shares of the first secret, wherein the encrypted shares are decrypted utilizing a second secret for regeneration of the first secret; and
regenerating the second secret from a subset of shares of the second secret.