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CLI-based Configuration Guide - Security

AR500, AR510, and AR530 V200R007

This document describes the configurations of Security, including AAA, DAA,NAC, BRAS Access, ACL, Firewall, Deep Security Defense, Local Attack Defense;Attack Defense, Traffic Suppression, ARP Security, Port Security, DHCP Snooping, IPSG, URPF, PKI, SSL, HTTPS, Keychain, separating the management plane from the service plane, security risks.
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(Optional) Configuring the RSA Key Length of Certificates

(Optional) Configuring the RSA Key Length of Certificates


The digital certificate system depends on the public key system. The device supports the RSA public key system. The RSA uses a pair of asymmetric RSA keys, namely, an RSA public key and an RSA private key. When an entity applies for a digital certificate, the request must contain the RSA public key.

The length of the RSA key equals the modulus of the RSA key. A larger modulus provides stronger key security but it takes a longer time to generate keys, and encrypt or decrypt data using the key pair.


  1. Run:


    The system view is displayed.

  2. Run:

    pki realm realm-name

    The PKI domain view is displayed.

  3. Run:

    rsa-key-size size

    The RSA key length of certificates is set.

    By default, the RSK key length of certificates is 2048 on the device.

Updated: 2019-05-25

Document ID: EDOC1000097287

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