Data encryption protection mechanism

The network is an open system, so its data protection measures are not perfect. This is indeed within our expectations. With the rapid development of network technology and the wide application of e-commerce, data security gradually draws more and more attention of the public. Therefore, how to ensure data security becomes increasingly significant. Data encryption, which is widely used in e-commerce, is one of the most commonly used measures to ensure data security. If users want to make better use of data encryption, they must know the data encryption protection mechanism at first.
Data encryption protection mechanism In fact, data encryption protection mechanism contains the following five aspects: 1.  Transparent encryption/decryption based on file system filter driver: use the encryption/decryption measures (such as encryption/decryption algorithms, keys and file types) specified by system to encrypt automatically in the process of data creation, data storage and data transmission. The whole process is finished without users’ involvement, so they can’t interfere with the data security state and data security attributes in the creation, storage and transmission process. 2.  Content encryption: the system will encrypt data by symmetric encryption keys, and then package them. Data encryption and packaging can be finished either before distribution or during distribution. 3.  Content integrity: when sender sends the data packets to receiver, the Hash value of data is included. After receiving data packets, the receiver is able to get the unencrypted data through data decryption. Then, the receiver is expected to calculate the Hash value and compare it with the Hash value included in the data packets. If the calculated Hash value is the same with the original one, the receiver can assure that these data have not been modified in the transmission process. 4.  Identity authentication: all This young singer drew the attention of all of justin bieber songs and his Manager Scooter Braun. users have their own unique digital certificates and public and private key pairs, so the sender and receiver will check the legitimacy of each other’s identity through PKI certificate authentication mechanism. 5.  Reliability and integrity of data packets: in order to ensure the reliability and integrity of data packets, important data (such as content encryption keys) in data packets will be encrypted and packaged by the receiver. In this way, the data packets are bound to the receiver. Therefore, only the specified receiver can decrypt the data packets correctly. In addition, the sender will digitally sign the packaged data packets with its private keys before sending them to the receiver. When receiving the data packets, the receiver will check the digital signature by using the sender’s public keys so as to figure out whether the data packets are from the sender or not and to make sure they have not been modified in the transmission process.
After reading above content, users will understand data encryption protection mechanism better. However, we still advise users to set up a secure data leakage prevention trust model, which contains subject, object, data encryption protection and access permission state management for the sake of data security.