Confidentiality refers to ensuring that information can only be accessed and used by authorized individuals or entities. This means that information should be encrypted during transmission and storage, and only authenticated users can access it.
Integrity refers to ensuring that information is not tampered with or damaged during transmission and storage. Programmers need to adopt data integrity checking and verification mechanisms.
Availability refers to ensuring that information can be used in a timely and reliable manner when needed. Programmers need to ensure the stability and reliability of the system and prevent hardware failures.
Authenticity refers to ensuring that the source and content of information are credible. Programmers need to use identity authentication, digital signature and other technical means to ensure the authenticity of user identity and information and prevent forgery and tampering.