The present patent invention discloses a Group Anonymous Dynamic Slice enabled 5G Systems with Privacy Preserving Service Access. It revolves around creating secure, private, efficient communication in 5G network, emphasizing privacy and authentication.

Secure Network Slicing:

• Utilizes NFV in 5G to create diverse network slices for different industries.
• Ensures each slice meets specific requirements efficiently.

Dynamic Distributed Associations:

• Establishes secure links between Network Slice Components (NSCs).
• Allows NSCs within a slice to securely authenticate without a centralized authority.

Privacy-Preserving Authentication:

• Implements mutual authentication for entities like service providers and user devices.
• Maintains user anonymity in interactions and device-to-device (D2D) services.

Key Management and Encryption:

• Uses cryptographic methods like proxy re-encryption to manage and secure communication.
• Utilizes elliptic curve cryptography for encryption purposes.

Role of Network Components:

• Orchestrator, slice manager, & infrastructure manager ensure secure network slice operation.
• Focuses on security, management, and efficient utilization of resources.

Defense against Attacks:

• Guards against topology learning attacks via unique key generation.
• Ensures group anonymity within the network for legitimate entities.