About authentication process (HMAC method)
"Marcelo ." <[email protected]>
| Newsgroups | gmane.network.net-snmp.user |
|---|---|
| Message-ID | <[email protected]> |
I've been reading a lot about the authentication and privacy processes in snmpv3 messages (RFC3414). I have a lot of questions but I'm going to begin with the very basic ones, because those are the basis for the rest of concepts. Is the password (8 bits long) related to some user and the secret auth key the same thing? In the document it says that the secret auth key (20 bytes long) is used to calculate the digest of the message, that is sent with the message to the recipient in the field authentication parameters (12 octects). For example, I have installed whatsup gold program and inside I have configured a user Root with a password "mypass12", and a remote router is monitored with that program, obviously, the router has configured a user Root with that password too. So, I though that the password and the message were computed together into a hash function to produce the digest message; but reading the document, it seems that an auth key (perhaps a digest result of the user + password) is the real value that is appended to the original message before the hashing function produces the digest... Please can someone clarify this to me? I'm confused. For the moment, that is the question, with that clarified, I can have more discernment to ask a little bit about this topic and have a very clear picture of the authentication functionality of USM module. Thanks in advance ------------------------------------------------------------------------------ Shape the Mobile Experience: Free Subscription Software experts and developers: Be at the forefront of tech innovation. Intel(R) Software Adrenaline delivers strategic insight and game-changing conversations that shape the rapidly evolving mobile landscape. Sign up now. http://pubads.g.doubleclick.net/gampad/clk?id=63431311&iu=/4140/ostg.clktrk _______________________________________________ Net-snmp-users mailing list [email protected] Please see the following page to unsubscribe or change other options: https://lists.sourceforge.net/lists/listinfo/net-snmp-users