4results about How to "Prevent replay" patented technology

The invention relates to the technical field of cryptography and information security management, in particular to a multi-system password security management method based on equipment authentication, which comprises the following steps of: generating a unique identity and identifier through a double-identity participant authentication mechanism, and generating an equipment initial password by using a homomorphic encryption algorithm based on lattice cryptography; potential safety hazards and management vulnerabilities in the prior art are effectively overcome, according to the method, the device identity identification and the initial password are bound and stored, the reliability of identity authentication is improved, and the safety of the device is effectively improved; meanwhile, the device password is dynamically updated based on the space-time behavior characteristic matrix and the environment factor, and the safety and the flexibility of the system are further improved; in addition, a zero-knowledge certification mechanism is adopted to carry out equipment identity verification, and hierarchical authority management based on attribute encryption is combined, so that the collaborative security and management efficiency among multiple systems are enhanced.

The application relates to the technical field of unmanned aerial vehicle control and communication, and discloses an unmanned aerial vehicle aerial photography automatic management and control method and system based on edge cloud cooperation, which comprises the following steps: a cloud service module generates global aerial photography task parameters; an edge master control module generates global action generation identification and cross-layer action tokens; a physical execution module combines a clock synchronization state and a physical in-place level signal to perform legality discrimination on the tokens, a closed release loop triggers aerial photography and outputs original high-definition code streams; the edge master control module extracts control signaling features, encapsulates the control signaling features into information anchor points, writes the information anchor points into the code streams, generates anchor point-containing media streams, and performs dynamic downsampling; and the edge master control module monitors a link state, generates a new generation of global identification when an exception occurs, and synchronously clears historical control instructions in a buffer area with a microcontroller. The application avoids action disorder caused by network delay, realizes time sequence binding of control signaling and video frames, and reduces network congestion and shutdown risks caused by bandwidth fluctuation.

The invention relates to a method for the encrypted transmission (10) of data between terminals (14, 16), in which, prior to the transmission of the data, a verification certificate (Z *) is created and transmitted to a rear end (12) and is signed in the rear end (12) by a root certificate (Z), the signed verification certificate (Z * *) is sent back to the second terminal (16), and the signed verification certificate (Z * *) is transmitted to the rear end (12). A public second digital key of the signed verification certificate (Z * *) is transmitted to the first terminal (14) and verification is carried out using the public second digital key (S2), during the verification, an encrypted unique symmetric session key (S *) is generated, which is transmitted to the second terminal (16) and is decrypted by means of the private key of the signed verification certificate (Z * *), and in the event of a verification failure, an encrypted unique symmetric session key (S *) is generated, which is transmitted to the second terminal (16) and is decrypted by means of the private key of the signed verification certificate (Z * *). The first terminal (14) is notified, or the data is decrypted using the session key (S *) if the verification is successful.

This invention relates to the field of data fusion processing technology, specifically disclosing an ultrasonic water meter anti-theft method based on multi-sensor fusion and multi-level response. This invention achieves comprehensive detection of various water theft behaviors such as magnetic interference, physical damage, and casing deformation through a sensor monitoring network; accurately identifies the type and severity of anomalies through multi-source information fusion and intelligent level judgment; securely protects communication data through encryption authentication and rolling code mechanisms; and implements differentiated handling from record keeping and remote alarm to valve shut-off through a hierarchical linkage response mechanism, effectively improving the comprehensiveness of ultrasonic water meter anti-theft monitoring and the adaptability of response handling.