The invention discloses an encryption method and an encryption apparatus, and a terminal. The method includes: obtaining encryption characteristics of to-be-processed data; determining an encryption strategy of the to-be-processed data according to the encryption characteristics; and performing encryption processing of the to-be-processed data according to the encryption strategy. According to the method and the apparatus, the encryption strategy of the to-be-processed data is determined according to the encryption characteristics of the to-be-processed data, encryption processing of the to-be-processed data is performed based on the encryption strategy, encryption strategies can be intelligently selected according to different to-be-processed data, the encryption processing efficiency is effectively improved, and the encryption processing time is reduced; further, under the condition of guaranteeing the security of the to-be-processed data, the encryption efficiency of data with a great data volume is further improved, and user experience is enhanced.

Encryption method and apparatus, and terminal

The invention discloses a mobile terminal, and a method and a device for improving encryption efficiency, and belongs to the technical field of mobile terminals The method for improving the encryption efficiency is applied to the mobile terminal, and a database of the mobile terminal stores applicable encryption algorithms according to different file types The method includes the steps: acquiring the type of an encryption file selected by a user; searching the encryption algorithm correspondingly applicable to the acquired file type in the database; encrypting the file by the searched encryption algorithm The file is encrypted by the applicable encryption algorithm searched in a system by acquiring the file type of the encryption file, so that the encryption algorithm is selected in a targeted manner and applicable to the file selected by the user, and the encryption efficiency is improved

Mobile terminal, and method and device for improving encryption efficiency

The invention discloses a hybrid encryption method, which belongs to the information security technology field. The hybrid encryption method utilizes an AES symmetric encryption algorithm to encrypt the message data and utilizes SM2 encryption algorithm to encrypt the session key. The invention also discloses a device for realizing the above hybrid encryption method by using hardware. The method combines the advantages of the AES algorithm and the SM2 algorithm, wherein the AES algorithm has advantages of fast arithmetic speed, low requirement for memory, reliable algorithm and can effectively resist the attack of differential cryptanalysis and linear cryptanalysis, and the SM2 algorithm can provide public key ciphers with most significant bit and obtain a ciphertext with a high security level by using a short secret key, according to the above advantages, the method can effectively resolve the contradiction between the big data encryption efficiency and the algorithm security.

Hybrid encryption method and device for realizing the same

The invention discloses a double-layer encryption method based on ElGamal encryption and relates to the field of network security. The inventio provides security protection for data in a network transmission process. The invention aims at solving the problem that information leakage or stealing is still likely to occur due to the fact that a traditional single-layer encryption surface is not highin network attack resistance at present. According to the method, more complex double-layer encryption is carried out on the data in the transmission process. For a first transmitted data packet, a single-layer public key encryption method based on an ElGamal encryption method is still used in the method. For each received data packet, the method comprises the following steps: firstly, carrying out first-layer encryption based on an ElGamal algorithm on the data packet. Meanwhile, calculating a K value by using an NKCP calculation method, and carrying out second-time encryption by using the Kvalue; similarly, the receiving end also uses double-layer decryption to obtain the transmitted plaintext. The double-layer encryption algorithm based on ElGamal encryption can improve the encryptioncomplexity, thereby better guaranteeing the safety and integrity in a data transmission process.

Double-layer encryption method based on ElGamal encryption

The invention provides a self-adaptation hybrid encryption method which includes the following steps that data types are firstly judged, text type data will enter an AES channel to be processed, and English data similar to a-z will be converted into corresponding ASCII data to be encrypted; non-text type data will enter a next selection channel so that the size of the data can be judged, the data smaller than 128bit will enter the AES channel to be encrypted, and the data larger than 128bit enters a data signature channel to be encrypted if necessary, the data on which digital signature needs to be performed will enter an ECC channel to be processed, and otherwise the data will enter an RSA channel to be encrypted. The self-adaptation hybrid encryption method integrated three kinds of encryption algorithms, selectivity of encryption functions is greatly improved, kinds of data encryption are provided for a user and comprise basic digital signature and identity authentication, different data sizes will be automatically transferred into corresponding encryption modules, in addition, the encryption algorithms are all achieved through hardware circuits, and compared with software encryption, the encryption speed of the data is improved.

Self-adaptation hybrid encryption method and device and encryption communication system

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Self-adaptation hybrid encryption method and device and encryption communication system