Unlocking method and system based on dynamic cipher lock

Abstract

The present invention discloses an unlocking method and system based on a dynamic password lock, including: step S1, the password server generates the first dynamic password through an encryption algorithm based on the lock information currently received from the device, and sends it to the device; step S3 , the dynamic password lock calculates the first verification password through the verification algorithm according to the verification key, and compares it with the first dynamic password for verification. If the verification is passed, the verification pass information is generated and sent to the device; step S5, the password server Generate the second dynamic password through the encryption algorithm according to the encryption key and send the lock information and verification information currently received from the device to the device; step S7, the dynamic combination lock uses the lock information and the verification information received from the device according to the verification key The second verification password is calculated by the verification algorithm, and compared with the second dynamic password for verification, and the dynamic password lock is opened if the verification is passed. The solution of the invention can improve the safety of equipment.

Description

technical field [0001] The invention relates to the control field of an access control system, in particular to an unlocking method and system based on a dynamic password lock. Background technique [0002] At present, vaults, gun stores, automatic teller machines, safes, safes, confidential file cabinets, etc. are all equipment with very high security requirements, and are key security parts. Especially in the automatic teller machines commonly used in the banking and financial industry, a large amount of cash is stored, and its access control system is particularly important. Before the staff perform banknote clearing or other operations on the automatic teller machine, they need to contact the access control system of the automatic teller machine equipment before they can perform banknote clearing or other operations. With the deepening of social electronic intelligence, access control systems can be divided into password access control systems, card swiping access contr...

AI Technical Summary

Problems solved by technology

However, the passwords of the current contact cards and contactless cards are all static passwords. After the legal user's card is lost or stolen, the static password and other important information of the card are easy to be copied, causing serious losses and consequences.

[0006] Also there is the access control system based on dynamic password lock in the prior art, for example, operator directly obtains dynamic password to ATMVH (AutomaticTellerMachineViewHead, head office monitoring and management system) by ATMC (AutomaticTellerMachineControl, terminal equipment control system), and is displayed on the ATM display screen , and then the operator obtains the real password according to the password offset value memorized in advance. Although this method can realize password dynamics, it still relies on the operator's memory in essence, so this type of method still has an offset value that is used by the operator. Defects such as forgetting or being leaked

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