Authentication vs. Non-Repudation

bbowler0786bbowler0786 Member Posts: 3 ■□□□□□□□□□
I am taking the Security+ Wednsday for the second time, and I am going over some notes and was wondering that wouldn't Authentication provide for Non-Repudation since you already trust who the message is coming from ?


  • lordylordy Member Posts: 632 ■■■■□□□□□□
    Well, Authentication and Non-Repudiation are two different things:

    Authentication verifies who you are (User-ID) while Non-Repudiation verifies what you did (e.g Sending a message).

    Another difference is that Authentication is mostly done through a central instance (like Radius, LDAP, etc.) and Non-Repudiation can be verified by anyone (using the available public key).

    Make sure you get all the terms, they are important ! See my review in the Sec+ section.

    Working on CCNP: [X] SWITCH --- [ ] ROUTE --- [ ] TSHOOT
    Goal for 2014: RHCA
    Goal for 2015: CCDP
Sign In or Register to comment.