Patent ID: 9100374
Filing Date: 2015-08-04
Classification: H04L

Abstract:
1. A method for managing remote upgrading keys in an information security apparatus, comprising: installing M sets of remote upgrading keys in the information security apparatus before the information security apparatus is issued, and enabling N set(s) of the M sets of remote upgrading keys when the information security apparatus is issued, wherein M and N are positive integers larger than or equal to 1 and N is smaller than M, the method further comprising: generating key disabling data according to a divulged remote upgrading key and sending the key disabling data to the information security apparatus by a remote source apparatus, wherein the key disabling data is used to direct the information security apparatus to perform a disabling operation on the divulged remote upgrading key; performing the disabling operation on the divulged remote upgrading key according to the received key disabling data by the information security apparatus; and setting key disabling operation identifications that are identical in the remote source apparatus and the information security apparatus before the information security apparatus is issued; wherein the key disabling data comprises: a key disabling operation identification, a key identification of the divulged remote upgrading key, and a corresponding value of the divulged remote upgrading key; and the step of performing the disabling operation on the divulged remote upgrading key according to the received key disabling data comprises: A1. if the key disabling operation identification in the received key disabling data is the same as the key disabling operation identification set in the information security apparatus, then a step B1 will be executed; otherwise, the process flow is ended; and B1. if the key identification of the divulged remote upgrading key in the received key disabling data is the same as a key identification of a set of remote upgrading keys that has been enabled in the information security apparatus and the corresponding value in the received key disabling data is the same as a corresponding value of the set of remote upgrading keys in the information security apparatus, then performing the disabling operation on the set of remote upgrading keys; otherwise, the process flow is ended.