Re: Difference between AES192 and AES192C

2021-09-20 Thread Craig Small
Hi Pushpa, Yes, your results were expected. They use the same encryption algorithm but are identified under either the Cisco or ESO enterprise OID. There is probably no way of knowing in advance which one a particular piece of equipment will use. - Craig On Tue, 21 Sept 2021 at 04:22, Pushp

Re: Difference between AES192 and AES192C

2021-09-20 Thread Pushpa Thimmaiah
Hi Craig, Following are my observations. Please let me know if the behaviour is correct. --snmp agent 192.168.1.12--- I added two snmpv3 users createUser pushaaes129 SHA mypassword AES192 mypassword createUser pushaaes129c SHA mypassword AES192C myp

Re: Difference between AES192 and AES192C

2021-09-15 Thread Craig Small
Hi Pushpa, It's a matter of identifying it. When the packet comes in, the receiver looks at the authentication protocol and sees one value or the other. That's why you need to specify which method you are using. In theory, I expect that the receiver could just look at the auth protocol and use t

Re: Difference between AES192 and AES192C

2021-09-14 Thread Pushpa Thimmaiah
Hi Craig Small, Thank you . This is really helpful. If AES192 and AES192C are AES standard from different entity then are they interchangeable ? Eg: I did configure AES192 on snmpd and use AES192C from mibbrowser. Tool 'snmpget' fails. It would help me if I know why CFB-AES192 (on silvercreek

Re: Difference between AES192 and AES192C

2021-09-14 Thread Craig Small
Hi Pushpa, As you have discovered, there are two AES192 standards. When you select AES192 (with no C) this is the IETF draft Blumenthal standard. When you select AES192C this is the Cisco "standard". What is the actual difference? As far as I can tell, it comes down to the OID used for some of