Data encryption method, decryption method, encryption device and decryption device
A data encryption and data decryption technology, which is applied in the computer field, can solve problems such as leakage and complicated processes, and achieve the effects of preventing data leakage, high security, and avoiding the risk of leakage
Active Publication Date: 2020-02-07
BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD +1
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Problems solved by technology
[0004] In the process of realizing the present invention, the inventor found that there are at least the following problems in the prior art: the prior art not only introduces a complex authorization application and approval process, but also cannot effectively achieve the safe transmission of data, which may cause problems during use. leakage risk
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[0046] Exemplary embodiments of the present invention are described below in conjunction with the accompanying drawings, which include various details of the embodiments of the present invention to facilitate understanding, and they should be regarded as exemplary only. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted in the following description for clarity and conciseness.
[0047] The data encryption method of the embodiment of the present invention allows to set a secret key, but the secret key is optional. In the case of massive data, if each data generates an unrelated secret key, a large amount of storage space and more bandwidth will be occupied resources, it is not appropriate to use the secret key at this time. When the secret key exi...
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An embodiment of the invention provides a data encryption method, a data encryption device, a data decryption method and a data decryption device and relates to the technical field of computers. The data encryption method includes the steps of shifting a key set for original data by a preset shift number and then subjecting the key and the original data to the exclusive-or operation; connecting the data obtained by the exclusive-or operation according to a character sequence of the original data to obtain intermediate encrypted data; subjecting the original data and the key to the add operation, multiplying the data obtained by the add operation by the preset first factor and then adding to the preset second factor to obtain a first new key; adding the intermediate encrypted data to the first factor positionally to obtain a value, dividing the value by the second factor to obtain divided data and remainder, and connecting all the divided data and remainder to form encrypted data. According to the embodiment, the data encryption method prevents possible leakage risk in data application and guarantees safety transmission of the data.
Description
technical field [0001] The invention relates to the field of computer technology, in particular to a data encryption method, a decryption method, an encryption device and a decryption device. Background technique [0002] In data-driven technology companies, Hive (a data warehouse tool based on Hadoop, which can map structured data files into a database table and provide simple SQL query functions) is widely used in various data-related in the business system. However, due to the sensitive characteristics of some data, such as user account names and contact information, there are high risks in the data interaction process, and its leakage may cause huge impact and losses on the company. Hadoop is a distributed system infrastructure, and SQL is a structured query language, which is called Structured Query Language in English. [0003] Hive itself does not have an encryption method for data, and because the Hive system does not directly provide encryption and permission cont...
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IPC IPC(8): G06F21/62H04L29/06
CPCG06F21/62G06F21/6218H04L63/0428
Inventor 强晶晶
Owner BEIJING JINGDONG SHANGKE INFORMATION TECH CO LTD