US 12,223,032 B2
Password protection method and apparatus, and medium
Dengwei Li, Jiangsu (CN); and Rengang Li, Jiangsu (CN)
Assigned to SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD., Jiangsu (CN)
Appl. No. 18/565,035
Filed by SUZHOU METABRAIN INTELLIGENT TECHNOLOGY CO., LTD., Jiangsu (CN)
PCT Filed Apr. 26, 2022, PCT No. PCT/CN2022/089351
§ 371(c)(1), (2) Date Nov. 28, 2023,
PCT Pub. No. WO2023/071100, PCT Pub. Date May 4, 2023.
Claims priority of application No. 202111244197.X (CN), filed on Oct. 26, 2021.
Prior Publication US 2024/0265093 A1, Aug. 8, 2024
Int. Cl. G06F 21/46 (2013.01); G06F 21/31 (2013.01)
CPC G06F 21/46 (2013.01) [G06F 21/31 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A password protection method, applied to a password protection device comprising a storage medium, wherein the method comprises:
after a password authentication is passed, according to a password that is currently authenticated, determining a specified bit of an enabling identifier of password invalidation; wherein the enabling identifier of password invalidation is stored in the storage medium, and is configured for representing whether an invalidation operation is permitted to be performed to the password;
setting the specified bit of the enabling identifier of password invalidation to be in a permitting state, and setting other bits to be in a non-permitting state, wherein the enabling identifier of password invalidation is in one-to-one correspondence with each password according to bits, and merely when one of the bits of the enabling identifier of password invalidation is in the permitting state, the invalidation operation is permitted to be performed to the password; and
after an invalidation request of the password is received, performing the invalidation operation to the password corresponding to the specified bit.