81results about How to "Simplify the encryption process" patented technology

A security system for a digital trunked radio system having a digital control channel and a plurality of working channels, wherein said working channels are assigned for temporary use of individual radio units by digital control signals transmitted over said control channel, said control channel carrying digital control signals between a base site and said radio units, comprising a digital key, said key used to limit access to the system equipment and system control channel transmissions.

A double-image encryption method based on chaotic and discrete fraction random transform comprises the steps of image expansion, chaotic scrambling, chaotic diffusion, image contraction, image reconstruction and discrete fraction random transform. According to the method, an expanded image is formed by a gray level image I1 and a gray level image I2 through the expansion step, the pixel positions and pixel intensity values are changed through the scrambling and diffusion process based on Logistic chaotic mapping, and then the expanded image is decomposed into a new image J1 and a new image J2 which are stable in white noise distribution through a contraction strategy; the image J2 is normalized and encrypted so as to form a pure phase matrix and a complex matrix J is obtained by multiplying the pure phase matrix and the image J1; finally, the complex matrix encrypted so as to form a temporary image through discrete fraction random transform based on Logistic chaos and the amplitude part is a final ciphertext image. Nonlinearity and randomness of a plaintext image in a spatial domain and a transform domain are enhanced, common attacks can be well resisted, and safety of an encryption system is improved.

The invention discloses a method, a device and a system for key agreement. The method comprises the following steps: a first key agreement device receives a first key agreement request sent by a first terminal, wherein the identification information of a second terminal is contained in the first key agreement request; the first key agreement device generates a random number R1 according to the received first key agreement request and sends a second key agreement request and the random number R1 to a second key agreement device corresponding to the second terminal according to the identification information of the second terminal; the second key agreement device generates a random number R2 and sends the random numbers R1 and R2 and a third key agreement request to the second terminal; the second terminal generates a session key according to the random numbers R1 and R2; the first key agreement device receives the random number R2 sent by the second key agreement device and sends the random numbers R1 and R2 to the first terminal; and the first terminal generates a session key according to the random numbers R1 and R2 and communicates with the second terminal on the basis of the session key. Accordingly, the invention can achieve the encrypted communication between the first terminal and the second terminal.

The invention relates to a method to take control and management to the application programs in terminal device that includes PC terminal and non-PC terminal containing network connecting function. The terminal device adopts open source code operation system and setting checking data base in checking server. The application programs only could be run after taking check on checking server. The invention resolves the uncontrollable problem of application programs in network terminal device, and has the advantages of low construction cost, easy to realize and convenience to manage.

The invention relates to the technical field of terminal security protection, and in particular, to a method and apparatus for generating a white box key for solving the problem of insecure keys in the prior art. The method mainly comprises the following steps: determining a second code block matched with a second parameter combination according to the determined second parameter combination; andrunning the second code block to obtain a white box key, wherein the second parameter combination at least comprises an encryption algorithm identifier, an original key and a target function. Therefore, the key can be conveniently updated, moreover, when the key is updated, a white box library file does not need to be updated, therefore the dynamic white box encryption process can be simplified, and the security of the key can be improved. In addition, the security of the user to decrypt a ciphertext and encrypt the plaintext is improved.

A multi-image encryption method based on the chaos and FrFT domain phase retrieval process includes the chaos scrambling step, the pure phase extraction step, the phase modulation step and the chaos diffusion step. The method includes the steps of firstly, scrambling multiple original gray level images to be encrypted through paired logistic mapping to obtain scrambled images; secondly, conducting the iterated phase retrieval process on each scrambled image to extract a pure phase function of the scrambled image; thirdly, conducting phase modulation on the pure phase functions on the multiple original gray level images to be encrypted; fourthly, conducting chaos diffusion on the amplitudes of the results obtained through modulation to obtain the final cipher text. According to the multi-image encryption method, nonlinearity and randomness of plaintext images in the spatial domain and the conversion domain are enhanced, the convergence speed of an encryption system is increased, and security of the encryption system is enhanced.

The invention discloses a data encryption method. The data encryption method comprises steps of reading data stored in the mobile terminal; determining the significance priority of the data; and carrying out encryption processing to the data according to the significance priority of the data. The invention also discloses a mobile terminal. In this way, the data can be encrypted according to the determined significance priority of the data, and therefore when a lot of data is encrypted, the lot of data is encrypted by means of the significance priority of the data, the encryption process is simplified, the data having the same significance priority can use the same password, and therefore the number of passwords is reduced, and the passwords used in the encryption process can be remembered easily.

The invention discloses a Hash ciphertext re-encryption method based on noise and a decryption method after re-encryption. The re-encryption method comprises the steps of 1 setting a static strategy; 2 setting a dynamic strategy and selecting the static strategy; 3 dividing original Hash ciphertext into first front half Hash ciphertext and first rear half Hash ciphertext; 4 forming second front half Hash ciphertext or second rear half Hash ciphertext; 5 randomly generating a noise character string; 6 forming first rear half Hash ciphertext with noise or second rear half Hash ciphertext with noise; 7 generating first re-encrypted noise ciphertext or second re-encrypted noise ciphertext. The decryption method comprises the steps of 1 obtaining a first noise inserting position; 2 obtaining a second noise inserting position and the length of the noise character string; 3 forming the first rear half Hash ciphertext with noise; 4 forming first rear half Hash ciphertext; 5 generating decrypted original Hash ciphertext. The safety of the original Hash ciphertext can be improved, and the expenditure is low.

The invention is applicable to the technical field of Internet, and provides a private file encryption method and a private file encryption device. The private file encryption method comprises the following steps that: a current running application program is monitored; when the application program belongs to a standard monitoring program list, whether a file generated in the current application program running process is a private file or not is judged, and the standard monitoring program list stores application program information to be monitored; and when the file generated in the current application program running process is the private file, the private file is encrypted in real time. The method and the device provided by the invention have the advantages that the real-time encryption on the private file is realized; the manual operation is not needed; the encryption process is simple and convenient; and the private file generated in the application program running process is encrypted in real time, so that the private file leakage due to encryption forgetting can be avoided.

The application relates to the technical field of terminal security protection, in particular to a method and a device for downloading a white-box library file, and aims to solve the problem of key insecurity in the prior art. The method mainly comprises the following steps: submitting a library file generation request to a server; and receiving a white-box library file fed back by the server according to the library file generation request in order to subsequently perform encryption and decryption operations according to the while-box library file and a received key file. Through the technical scheme, key updating becomes relatively convenient. Moreover, the white-box library file does not need to be updated during key updating, so that a dynamic white-box encryption flow can be simplified, and the security of keys is enhanced. Furthermore, the security in ciphertext decryption and plaintext encryption performed by a user is enhanced.

The method for encrypting and decrypting a network broadcast comprises: after first encryption, getting n intermediate results QV1,QV2......QVN. Said first encryption comprises: 11) figuring out the value Qi of the hash function H1 of the user Idi in network, namely Qi= H1(Idi); 12) after encryption, figuring out n intermediate results, namely QV1,QV2......QVN; The decryption process is a process of solving a linear equation system.

The invention discloses a system enciphering method adopting multi-purpose auxiliary singlechip, it is in multiple microprocessor system, the support microprocessor (for example power management support microprocessor) that its function is relatively simple and the amount of software programme is few is substituted with singlechip which equipped with inner read only program memory, the code checking of the stipulated enciphering protocol algorithm is added to the program of main processor and auxiliary singlechip to avoid the program to be read out and copied, so the purpose of system encryption can be achieved.

The present invention discloses a payment method based on a short message verification code. The method comprises: after receiving a payment request sent by a client, generating a corresponding shortmessage verification code according to the payment request; after encrypting the short message verification code and signing the short message verification code, sending a short message verification code ciphertext and a verification code signature to the client, so that the client can verify the verification code signature; and after the verification is passed, decrypting the short message verification code ciphertext, and obtaining the short message verification code, so that the user can complete the payment operation after inputting the short message verification code. According to the technical scheme of the present invention, the certificateless public key password is used in the whole process to sign the short message verification code, the encryption verification of the short message verification code during transmission is realized, and the security of the short message verification code is ensured; and at the same time, by using the certificateless public key password, the problems of certificate management and key management are not involved, so that the process for processing the short message verification code is simplified, and the costs are saved. Correspondingly, the present invention also discloses a payment apparatus and device based on the short message verification code, and a readable storage medium, which also have the technical effects.

The invention relates to the technical field of terminal security protection, and in particular, to a method and apparatus for performing encryption and decryption by using a white box library file and a white box key file for solving the problem that the key is insecure in the prior art. The method mainly comprises the following steps: obtaining the white box library file via a first parameter combination carried in a library file generation request; obtaining the white box key file via a second parameter combination carried in a key file generation request; and performing encryption and decryption processing according to the white box library file and the white box key file. By adoption of the technical scheme, the key update is more convenient, when the key is updated, the white box library file does not need to be updated, so that a dynamic white box encryption flow can be simplified, and the security of the key is improved. In this way, the security of decrypting a ciphertext andencrypting a plaintext by a user is improved.

The invention relates to encrypting method and system, decrypting method and system and encryption and decryption method and system for a photo album of a mobile terminal. The encrypting method for the photo album of the mobile terminal includes the steps of acquiring encrypted events of the photo album on the mobile terminal, displaying an interface for inputting encrypted password according to the encrypted events, acquiring the inputted encrypted password, and encrypting the photo album by the encrypted password. By the encrypting method and system, the decrypting method and system and the encryption and decryption method and system, the photo album of the mobile terminal is encrypted, other people cannot acquire the encrypted password and cannot check the content of the photo album, the photo album can be accessed only when verification is passed by inputting the encrypted password, and safety to the information of the photo album is improved.

The invention discloses an internal and external network integrated power grid data communication system and method. The problems that in the prior art, a power grid independently uses a private network for communication, huge information amount interaction cannot be met, and data communication safety cannot be guaranteed when an external network is used are solved. The method comprises the following steps: S1, robot inspection: collecting power grid data; S2, encrypting the acquired power grid data; transmitting the encrypted power grid data to a cloud database through an external network, and transmitting a secret key to a control center through an internal network; S3, the control center obtaining the corresponding encrypted power grid data from the cloud database through the external network, decrypting the encrypted power grid data by using the secret key, and restoring the encrypted power grid data to obtain the original power grid data; and S4, the control center performing power grid fault diagnosis according to the original power grid data and judging whether the inspection object has a fault or not. Encrypted data is transmitted through the extranet, and a secret key is transmitted through the intranet, so that huge information interaction can be met, and meanwhile, the security of data transmission can be ensured.

The invention discloses a flexible and controllable session encryption method. An SIP server in the calling direction sends a connection establishment request message carrying an identification indicating whether session contents during connection are needed to be encrypted or not, the SIP server obtains a randomly-generated secret key through a password server if encryption is needed, the secret key is sent to two communicated parties by utilizing messages interacted by the two communicated parties, and follow-up voice data of the two parties are encrypted by adopting a encrypted and the secret key; if the encryption is not needed, the SIP server directly sends a connection establishment request message to a called party. The IP voice encryption processing process can be simplified. Compared with secret keys configured and fixed in advance, configuration work is omitted, communicated-connected secret keys each time are different, and even if the secret keys are cracked, session contents after connection is re-established cannot be obtained.

The invention discloses a method and device for implementing a file manager confidentiality box and a mobile terminal.The method for implementing the file manager confidentiality box comprises the steps of entering the file manager confidentiality box, wherein the file manager confidentiality box is configured to achieve the effect that each file stored in the file manager confidentiality box can only be found and opened through an application of the corresponding file and cannot be found and opened through other applications other than the application of the corresponding file; in the file manager confidentiality box, selecting the operation type which the file to be operated needs to implement; based on the operation type, starting a corresponding operation mode of the file manager confidentiality box, and executing corresponding operation on the file to be operated.By means of the method and device for implementing the file manager confidentiality box and the mobile terminal, the defects that in the prior art, the encryption process is complex, consumed time is long, and user experience is poor are overcome, and the method and device for implementing the file manager confidentiality box and the mobile terminal have the advantages of being simple in encryption process, short in consumed time and good in user experience.

The invention relates to a data secrecy system and a data secrecy method of a slimming data sharing cloud platform, wherein the sending end comprises a weight detection module, a video recording module, a key generation module, a video encryption module and a video sending module, and the receiving end comprises a video receiving module and a video decryption module. The invention adopts the weight detection result of the weight detection module as a signal for a user to start and stop fitness, if the video recording module detects that the camera does not record, the weight detection result is detected, the user starts to exercise and starts to record video; if the video recording module detects that the weight detection result is detected during the camera recording, the user stops the exercise and automatically controls the video recording start and end process. Encrypt the fitness video and weight data to ensure the security of video and weight data transmission, avoid being obtained by other non-designated receiver video content, and ensure the security of user privacy data.

The invention provides an image encryption method and device, an image decryption method and device, electronic equipment and a medium, and relates to the technical field of image encryption. The image encryption method comprises the following steps: acquiring an image feature value of a to-be-encrypted image; generating a reversible execution encryption matrix based on the image feature value; partitioning a pixel matrix of the to-be-encrypted image based on the number of rows and/or the number of columns of the encryption execution matrix to obtain a plurality of partitioned pixel matrixes; multiplying each block pixel matrix by the encryption execution matrix to obtain a plurality of encryption blocks; and assembling the plurality of encrypted blocks based on the sequence of the blocks to generate an encrypted image. According to the technical scheme, the reliability of encryption operation and the security of the encrypted image are ensured, the implementation process of encryption is simplified, and operation is easy.