What is the security mechanism of Cassandra like?

Cassandra has some built-in security mechanisms to protect the confidentiality and integrity of data, including:

1. Authentication: Cassandra supports a mechanism for verifying user identities through usernames and passwords, which can be done by configuring files or using external authentication services such as LDAP.
2. Authorization: Cassandra allows for authorization of users and roles, enabling the configuration of different levels of permissions to restrict user access and operations on the database.
3. SSL/TLS encryption: Cassandra supports encrypting communication between clients and nodes using the SSL/TLS protocol, effectively preventing data from being stolen or tampered with during transmission.
4. Data encryption: Cassandra can be configured to encrypt data, protecting data stored on disk and ensuring that it cannot be accessed by unauthorized users while stored.
5. Firewall: Cassandra can be used in conjunction with a firewall to restrict network access, allowing only specific IP addresses or IP ranges to access the database.

Through these security mechanisms, Cassandra can effectively protect the security and privacy of data, preventing data leaks and unauthorized access.