33results about How to "Improve anti-cracking performance" patented technology

The invention is suitable for the field of computer security, and provides a user identity authentication method and device and an authentication service system. The method comprises the following steps: generating an authentication picture group and an authentication tag, and issuing the authentication picture group and the authentication tag to a client; receiving authentication information transmitted by the client, wherein the authentication information comprises a picture identifier of a picture selected by a user from the authentication picture group according to the authentication tag; and acquiring a tag of a picture corresponding to the picture identifier in the authentication information, and matching the tag of the picture corresponding to the picture identifier in the authentication information with the authentication tag in order to authenticate the identity of the user. The authentication method provided by the invention has high crack resistance and high security.

The invention relates to an identity verification method and apparatus which have the advantages of being high in declassification capability and improving the normal user pass rate. The method comprises the following steps: a user terminal sending a verification code extracting request to a server; receiving and displaying a verification code picture returned by the server according to the verification code extracting request and an input interface, wherein the content of the verification code picture comprises multiple verification objects arranged according to a predetermined sequence, the content of the input interface comprises multiple objected to be selected, and the multiple objects to be selected at least comprises all the verification objects in the verification code picture; detecting touch control operation acting in the input interface, and when the touch control operation is preset touch control operation, obtaining the touch control position and time of the touch control operation; and sending the touch control position and time of the touch control operation to the server, and when the server determines the objects which the touch control operation acts on include and only include all the verification objects in the input interface and a touch control sequence is the same as the predetermined sequence according to the touch control position and time, approving verification.

The invention discloses a steel bar truss floor deck which comprises a base plate and a plurality of steel bar assemblies. Each steel bar assembly comprises at least one bottom chord piece, an upper chord steel bar and two web member steel bars, wherein each bottom chord piece comprises two parallelly extending first steel bars and a first connecting steel bar which is connected with the first ends of the two first steel bars, and the bottom chord pieces are arranged above the base plate; the upper chord steel bar is arranged above the uppermost bottom chord piece; each web member steel bar is in an S shape, extends from one end of the upper chord steel bar to the other end of the upper chord steel bar, is fixedly connected with the top face of the base plate, the inner sides of the two first steel bars and the upper chord steel bar, and comprises a plurality of steel bar sections, and each steel bar section extends from one side of the upper chord steel bar to the other side of the upper chord steel bar; and the two web member steel bars are separately arranged on the two sides of the same position of the upper chord steel bar. The steel bar truss floor deck is rapid in construction progress, and the occupied area of a workyard is saved.

The invention relates to a shared key processing method and device, a storage medium and electronic equipment. The method comprises the following steps: generating a parameter matrix according to thesafety parameters; randomly generating a first private key matrix and a first noise matrix, parameter matrix, a first private key matrix and a first noise matrix, determining a first public key matrix, and removing information on a specified bit of each element in the first public key matrix so as to update the first public key matrix; sending the updated first public key matrix and the security parameters to a receiving end, so that the receiving end determines a second public key matrix according to the security parameters, and encrypts the shared key according to the updated first public key matrix and second private key matrix to obtain consensus information; receiving the second public key matrix and the consensus information sent by the receiving end, and decrypting the consensus information according to the first private key matrix and the second public key matrix to obtain the shared key. The communication bandwidth is reduced by removing information on a specified bit of eachelement in a public key matrix.

An embodiment of the invention discloses a verification code interference method. The method comprises the steps of drawing a foreground character on a blank drawing board to generate and obtain a character content picture, and performing Gaussian blur processing on a background picture to generate and obtain a blurred picture; performing image fusion processing on the background picture, the blurred picture and the character content picture to obtain a verification code picture; receiving a verification code obtaining request sent by a network server; and sending the verification code pictureto the network server, thereby enabling the network server to send the verification code picture to a user terminal for enabling the user terminal to display the verification code picture to prompt auser to input a check code and submit the check code to the network server for performing check. An embodiment of the invention furthermore discloses a verification code generation server. By adopting the method and the server, the anti-cracking capability of a verification code can be improved.