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Key-based routing

Key-based routing

(also Policy-Based Access Control)

Key-based routing definition

In terms of cybersecurity, key-based routing control access, and direct data traffic via cryptographic keys, access to resources and communication paths is allowed only with a specific cryptographic key. For example, messages published to the particular exchange will be routed to queues with the matching binding key. Respectively all other messages that don’t apply to that binding key will be filtered out.

See also: encryption key, firewall

Common Key-based routing applications

  • VPNs: Key-based routing is widely used in virtual private networks to establish secure connections between private networks and users. Users get specific cryptographic keys for granted access. That way, VPN authorizes specific users who seek access to sensitive resources.
  • Secure communication channels: Key-based routing protocols are applied to various communication channels, like encrypted messaging platforms or (VoIP) servers. Users can share information securely by encrypting and decrypting data using specific cryptographic keys.
  • Access control lists: Key-based routing protocols implement access control lists in various network connection devices like firewalls and routers. ACLs then permit or deny traffic based on certain criteria and specific cryptographic keys.
  • Secure IoT communication: Key-based routing ensures secure communication between devices and central systems. In order to receive data from authorized sources, devices must process the correct cryptographic keys.
  • Secure data transfer: Key-based routing favors secure data transfer applications and protocols, like (SFTP) and Secure Shell (SSH). Cryptographic keys are used for the user authentication process, then the data is transmitted.

Further reading

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