A key verification method for a bluetooth smart lock controller
A technology of smart locks and controllers, applied in the field of smart locks, can solve problems such as insecurity, passive eavesdropping of Bluetooth wireless communication links or man-in-the-middle attacks, and achieve the effect of high anti-attack characteristics
Active Publication Date: 2019-10-08
武汉世纪金桥安全技术有限公司
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Problems solved by technology
However, once the key exchange protocol fails and the security of the Bluetooth component of the lock fully relies on the built-in security policy of Bluetooth low energy technology, the Bluetooth wireless communication link may still be subject to passive eavesdropping or man-in-the-middle attacks
Therefore, in the application of Bluetooth smart lock, it is not safe to transmit plaintext or reversible ciphertext on the Bluetooth wireless communication link
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[0035] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not constitute a conflict with each other.
[0036] In order to illustrate the method of the present invention, first introduce the Bluetooth smart lock key composite verification system, figure 1 It is a schematic diagram of the composition and structure of the bluetooth smart lock key compound verification system in the present invention. It can be seen from the figure that a bluetooth smart lock key compound verification system of the p...
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The invention discloses a key verification method of a Bluetooth smart lock controller, and belongs to the field of smart locks. The key verification method comprises the steps of generating an unlocking key in an abstract form by regarding unlocking time, the time salt and the lock core ID of the lock main body of the Bluetooth smart lock as an original text; and synchronously updating the unlocking time which serves as the unlocking key original text at a lockset and the two ends of an intelligent terminal which serves as an unlocking key to form a dynamic key original text. The problem that the Bluetooth smart lock is directly decoded after a steady key ciphertext is intercepted is completely eradicated. No proclaimed or reversible ciphertext transmission related to the key exists on a Bluetooth wireless communication link, so that the attack difficulty is extremely great after the key is intercepted. Meanwhile, as a potential man-in-the-middle attacker does not master the unlocking time, the salted abstract cannot decode the unlocking time inversely, and a passive eavesdropper cannot obtain the correct unlocking time, the Bluetooth smart lock is difficult to attack.
Description
technical field [0001] The invention belongs to the field of smart locks, and more specifically relates to a key verification method for a Bluetooth smart lock controller. Background technique [0002] Bluetooth (Bluetooth) is a wireless technology standard that enables short-distance data exchange between fixed equipment, mobile equipment, and building personal area networks (it uses UHF radio waves in the ISM band of 2.4-2.485GHz). Bluetooth technology was originally created by telecommunications giant Ericsson in 1994 as an alternative to RS232 data lines. Bluetooth can connect multiple devices, overcoming the difficulty of data synchronization. [0003] Bluetooth smart lock is a new type of smart lock that has appeared in recent years. This kind of lock can be opened only by using a handheld smart device with Bluetooth function and matching related software. This kind of smart lock does not require the user to memorize the unlock password, nor does the user need to car...
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IPC IPC(8): H04L9/06H04L9/00G07C9/00G08C17/02
Inventor 曹锋游晓光
Owner 武汉世纪金桥安全技术有限公司