Big data hybrid encryption method based on attribute encryption

• Main Authors: LI JINKU, HAN FEI, KANG BORUI, JIA HAO
• Format: Patent
• Language: Chinese; English
• Published: 25.07.2023
• Subjects: ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHICCOMMUNICATION

The invention discloses a big data hybrid encryption method based on attribute encryption, and mainly solves the problems of low data encryption and decryption efficiency and incapability of ensuring key security in a big data environment in the prior art. According to the implementation scheme, the method comprises the following steps: randomly generating an AES symmetric key, and encrypting data generated by data source equipment by using an AES symmetric encryption algorithm to obtain ciphertext data; constructing an access control tree using the attribute set of the data source device; using the control tree to encrypt the AES symmetric key by using an attribute encryption algorithm to obtain an encryption key; when a user accesses data, an attribute set of the user is constructed according to identity information and environment information of the user, an attribute encryption algorithm is used for decrypting an encryption key to obtain an AES symmetric key, and the AES symmetric encryption algorithm is