Data encryption method, data decryption method and devices

A technology for data encryption and encryption keys, applied in the usage of multiple keys/algorithms, electrical components, transmission systems, etc., to solve the problems of data security, integrity, and tamper-proof reduction.
CN104580180AInactive Publication Date: 2015-04-29BEIJING BLUE POWER SOFTWARE
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING BLUE POWER SOFTWARE
Publication Date
2015-04-29
Estimated Expiration
Not applicable · inactive patent

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Abstract

The embodiment of the invention discloses a data encryption method, a data decryption method, a data encryption device and a data decryption device. The data encryption method comprises the following steps: after receiving original data sent by a data sending party App (Application), acquiring an encryption key corresponding to the original data as well as a first encryption algorithm and a second encryption algorithm which are preset and correspond to the data sending party App; carrying out encryption on the original data by using the first encryption algorithm and the encryption key and generating encrypted data corresponding to the original data; packaging the encrypted data by using the second encryption algorithm and generating a digital envelope corresponding to the encryption key; packaging the digital envelope into the enciphered data to be sent to the data sending party App. According to the scheme, encrypted data interworking among multiple operation systems and among multiple Apps can be realized and safety, integrity and tamper resistance of the data are improved.
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Description

technical field

[0001] The present invention relates to the technical field of terminals, in particular to a data encryption method, a data decryption method and a device. Background technique

[0002] At present, in order to ensure the security of data transmission, the original data is generally encrypted, and the encrypted data is obtained before transmission. At the same time, with the rapid development of terminal technology, there are more and more types of operating systems, commonly used are Windows, Linux, Unix, Android, Ios, etc.; in order to meet various needs of users, application programs (Application , App) types are also increasing. Due to the diversified development of operating systems and Apps, how to ensure the encrypted data intercommunication between multiple operating systems and multiple Apps has become very important.

[0003] According to the existing data encryption method, a fixed key is usually set in advance, and the data sender App uses the fi...

Claims

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