INFORMATION SECURITY
UNIT I – OVERVIEW OF INFORMATION SECURITY
INFORMATION SECURITY
Definition:
Information security encompasses the protection of sensitive data, systems, and
networks from unauthorized access, disclosure, alteration, and destruction.
Core Principles:
1. Confidentiality:
Ensures that information is accessible only to authorized individuals or
systems.
Example: Encrypting sensitive files to prevent unauthorized access.
2. Integrity:
Ensures that data remains accurate and unaltered during storage, transmission,
and processing.
Example: Using digital signatures to verify the integrity of electronic
documents.
3. Availability:
Ensures that information and resources are available and accessible when
needed.
Example: Implementing redundant servers to ensure continuous access to
critical services.
Components of Information Security:
1. Access Control:
Controls and mechanisms to manage user access to resources.
Example: Role-based access control (RBAC) systems.
2. Cryptography:
Techniques for secure communication and data protection.
Example: Encryption algorithms like AES and RSA.
UNIT I – OVERVIEW OF INFORMATION SECURITY
INFORMATION SECURITY
Definition:
Information security encompasses the protection of sensitive data, systems, and
networks from unauthorized access, disclosure, alteration, and destruction.
Core Principles:
1. Confidentiality:
Ensures that information is accessible only to authorized individuals or
systems.
Example: Encrypting sensitive files to prevent unauthorized access.
2. Integrity:
Ensures that data remains accurate and unaltered during storage, transmission,
and processing.
Example: Using digital signatures to verify the integrity of electronic
documents.
3. Availability:
Ensures that information and resources are available and accessible when
needed.
Example: Implementing redundant servers to ensure continuous access to
critical services.
Components of Information Security:
1. Access Control:
Controls and mechanisms to manage user access to resources.
Example: Role-based access control (RBAC) systems.
2. Cryptography:
Techniques for secure communication and data protection.
Example: Encryption algorithms like AES and RSA.
