What are the data encryption storage measures?

Data encryption storage measures include: 1. Database-level encryption: Encryption of data fields can be achieved; 2. Media-level encryption: Encryption of static data on storage devices can provide users and applications with a lot of benefits. High transparency, but data can only be encrypted when it reaches the storage device, so media-level encryption can prevent theft of physical storage media; 3. Embedded encryption device: can encrypt data on storage devices and protect static data. However, the expansion of embedded encryption equipment is difficult and costly; 4. Application encryption: Integrate encryption technology into commercial applications.

Data encryption storage measures mainly include the following:

• Database-level encryption: It can encrypt data fields. However, because encryption and decryption are generally performed by software rather than hardware, the performance of the entire system will be degraded.
• Media-level encryption: Encrypting static data on the storage device can provide users and applications with high transparency, but only when it reaches the storage device can the data be encrypted, so media-level encryption can prevent Steal physical storage media.
• Embedded encryption device: placed in the storage area network, between the storage device and the server requesting encrypted data, it can encrypt the data of the storage device and protect static data, but embedded encryption Equipment expansion is difficult and costly.
• Application encryption: Integrating encryption technology into business applications can ensure that only specific users can access data through specific applications, thereby gaining access to critical data. This is essentially a data classification problem.

In addition to the above four encryption measures, the following measures can also be taken to enhance data security:

• Choose appropriate encryption algorithms and keys: For different application scenarios, security needs to be Requirements and performance dictate the selection of an appropriate encryption algorithm and key length. At the same time, attention needs to be paid to the management and storage of keys to avoid key leaks.
• Classify and encrypt data: For different data types and importance, data needs to be classified and encrypted. For example, confidential data and sensitive data can be encrypted using stronger encryption algorithms and longer keys; public data and unimportant data can be encrypted using weaker encryption algorithms or digest algorithms.
• Protect the security of keys: Password protection, physical protection, decentralized protection and other methods can be used to protect the security of keys. At the same time, keys need to be replaced regularly and the authorization and use of keys need to be strictly controlled.
• Strengthen security audit and management: The process of data encryption and decryption can be monitored and recorded through security audit systems, log systems and other means, and security incidents can be discovered and dealt with in a timely manner. At the same time, it is necessary to strengthen personnel's safety awareness and training to improve the overall safety level.

In short, data encryption storage measures are one of the important means to ensure data security. It is necessary to select appropriate encryption measures and strengthen security management according to the actual situation.

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