56results about How to "No access" patented technology

The invention is aimed to provide a video recorder which can record a broadcast program through a network without causing network failure or the like, maintaining an advantage of the interchangeability of an information recording medium. This video recorder connectable with the network is provided with a reservation management section which manages broadcast program reservation information, a recording drive which records on an interchangeable information recording medium and which records broadcast program data on the information recording medium, and a controller which controls the reservation management section and the recording drive. When the recording drive is loaded with the information recording medium, and such a setting that the recording drive records the broadcast program data is performed, the controller prohibits other apparatus from accessing the recording drive through the network.

The invention discloses a dumb terminal security detection method and device, equipment and a readable storage medium. The method disclosed by the invention comprises the following steps of: acquiring network traffic data; determining a source end and a destination end of the network flow data; and if the source end is a dumb terminal and the destination end forbids the dumb terminal to access, giving an alarm. Visibly, according to the dumb terminal security detection method, after the source end and the destination end of the network flow data are determined on the basis of the network flow data, if the source end is the dumb terminal and the destination end forbids the access of the dumb terminal, then the situation indicates that the network flow data is abnormal access data, namely, the dumb terminal accesses the destination end forbidding the access of the dumb terminal, so that an alarm is given, therefore, the illegal behavior of the dumb terminal in the network can be sensed, and the safety of equipment in the network can be ensured. Correspondingly, the invention further provides the dumb terminal security detection device, the equipment and the readable storage medium, which also have the above technical effects.

The invention discloses a certification and key agreement method between devices. The certification and key agreement method between the devices comprises that the same key information records are pre-established in a primary device and a slave device; when the primary device determines whether the slave device possesses the same key serial number, the slave device generates a random number RA; the primary device and the slave device calculate result data A1, B1 and C1 according to the key information records and the random number RA of the primary device and the slave device; when the primary device determines that the calculated result data A1 and B1 is equal to the calculated data A1 and B1 of the slave device, the slave device generates a random number RB; the primary device and the slave device calculate result data A2, B2 and C2 according to the key information records, the result data C1 and the random number RB of the primary device and the slave device; when the primary device determines that the calculated result data A2 and B2 is respectively equal to the result data A2 and B2 calculated by the slave device, the key between the primary device and the slave device is C2. The certification and key agreement method between the devices is safe and reliable and is beneficial to guaranteeing safety and reliability of data interaction between devices.

The invention relates to a shared big data field protection platform, which comprises a depth-of-field identification device used for carrying out face feature analysis on a face object with the nearest depth of field in a morphologically processed image to determine whether the face object is an authorized user or not, and sending a first identification command when the face object is determinedto be the authorized user, otherwise, sending a second identification command; and a access control signal which is arranged in the desktop computer and is used for prohibiting access to the shared document address when the second identification command is received. The shared big data field protection platform is reasonable in design, safe and reliable. The face feature analysis is made on the face object with the nearest depth of field of the environment where a computer is located to determine whether the user is the authorized user or not, and when the user is determined to be the unauthorized user, the access to the currently requested shared document address is forbidden, so that the shared document content is prevented from being leaked.

The invention provides a traceless access controlling method and a device based on protection of a visual magnetic disc. The traceless access controlling method and the device based on protection of the visual magnetic disc are characterized in that a usbkey is used for setting up a visual magnetic disc in a system of a user terminal. A safety gateway device with a safety plug-in board is arranged between the user terminal and a web server. The usbkey is used for identifying a user identity by accessing a classified web system. The visual magnetic disc is mounted on the safety plug-in board to set up a visual accessing space. Files in the visual accessing space are oriented again to the visual magnetic disc. According to the traceless access controlling method and the device based on protection of the visual magnetic disc, only a user is allowed to access the files in the visual magnetic disc. Other progresses in the system are forbidden from accessing user files in the visual magnetic disc so that safety of the files in a transmission process is ensured and safety of local files of the user is ensured.

The invention discloses a password management method. The password management method comprises the following steps of establishing a password database, wherein at least one piece of password data is stored in the password database, each application corresponds to one of the password data to form a corresponding mapping relationship; receiving password input, when password input information is different from a preset password of a password protection application, storing the password input information, and receiving the password input again; when at least two times of continuous false inputting are detected, comparing the stored password input information and the password data; when each stored password input information corresponds to one piece of password data, sending prompting information. The password management method has the advantages that the mapping relationship of the password and the corresponding application is pre-stored; when the password is falsely input for multiple times, the false inputting of a user is judged according to the input false password by the user; when the user falsely inputs the password, a correct password prompt is provided for the user, so as to facilitate the user to correctly input.

The invention provides a communication method and device of an industrial security gateway based on an embedded system, which helps to improve the security of data transmission in an industrial control network. The method includes: obtaining data information on an industrial site; performing encryption and digital signature processing on the obtained data information through a selected and / or customized encryption algorithm; sending the encrypted data information and the generated digital signature information to to the server. The device includes: an acquisition unit, used to acquire data information on an industrial site; an encryption unit, used to encrypt and digitally sign the acquired data information through a selected and / or customized encryption algorithm; a first sending unit, It is used to send the encrypted data information and the generated digital signature information to the server. The invention is applicable to the technical field of industrial automation information security.