4results about How to "Stability and security" patented technology

This invention discloses a secure authentication method and system based on a general server interface, belonging to the field of interface security control technology. The method involves acquiring the original request message, extracting the interface identifier, timestamp, request parameters, and a first signature value; generating an interface context feature code based on the interface identifier and an interface mapping table, containing call hierarchy and permission domain information; and comparing this with a second signature value generated using a pre-shared key to determine message legitimacy. After confirming message legitimacy, a dynamic channel identifier bound to the interface context feature code is generated and written into the call context stack. The consistency between the dynamic channel identifier and the interface path vector is verified using a Merkle path binding verification algorithm, controlling the execution of the target business module. This invention achieves strong binding between interface message authentication and the server's internal call path, effectively preventing cross-module replay and path mismatch risks, and improving the security and reliability of general interfaces in complex operating environments.

The utility model relates to the technical field of supports for packaging in silicon steel strip production, and discloses a support for packaging in silicon steel strip production, which comprises a main body mechanism and a supporting mechanism, the supporting mechanism is fixedly arranged in the main body mechanism, and the main body mechanism comprises a support main body, a base and a stand column. A base is fixedly installed at the bottom end of the support body, a plurality of stand columns are fixedly installed on the base, and the stand columns are perpendicular to the base. The movable block of the support can flexibly slide in the sliding groove of the bottom plate and is fixed through the positioning pin, the position can be rapidly adjusted according to the width of silicon steel strips, and accurate positioning of the silicon steel strips with different widths is achieved. By means of the adjustable structure, the strip materials can be effectively prevented from deviating in the placing process, an accurate initial position is provided for subsequent packaging work, and the packaging efficiency is improved.

This invention discloses a deformation-resistant booster pipe with a protective device, belonging to the field of booster pipe technology. It includes a protective cover located at the booster pipe joint, comprising an upper cover and a lower cover. Transmission mechanisms are symmetrically arranged inside the upper and lower covers. An upper sealing cover is installed between the two transmission mechanisms of the upper cover, and a lower sealing cover is installed between the two transmission mechanisms of the lower cover. Limiting frames are symmetrically installed on both side walls of the upper cover, and guide cylinders are symmetrically arranged on both side walls of the lower cover. Guide rods are movably arranged inside the guide cylinders, and two limiting blocks are movably arranged on each guide rod. A triggering mechanism is provided between the guide cylinders and the lower cover. This invention can resist external impacts and prevent joint deformation, and can also specifically solve the leakage problem after joint sealing failure, thus improving the overall pressure-bearing capacity, structural strength, and safety protection level of the booster pipe, and extending the service life of the pipeline.

The invention relates to the technical field of automobile assembly, and discloses large automobile unpowered hydraulic damping equipment which comprises a control system and a braking system. The braking system comprises a hydraulic damper, a transmission gear pair, a hub and a fixing plate, the fixing plate is located at the end of the axle, the mounting position of the fixing plate is fixed, the hydraulic damper is fixedly mounted on the fixing plate and is in transmission connection with the hub through the transmission gear pair, and the central axis of the hydraulic damper is parallel to the central line of the axle; through the coupling effect of the hydraulic damper and the transmission gear pair, effective control over the rotating speed of the wheels is achieved, a strong braking power source does not need to be additionally arranged, and therefore driving potential safety hazards and vehicle assembling, manufacturing and using cost are remarkably reduced.