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+--- Thread: MobileIP (RFC3012) (/thread-10703.html)
MobileIP (RFC3012) - joshua1909 - 04-01-2022
Hi,
I've been looking into some labbed mobile communication. It's a HMAC-MD5 made up of the following:
hmac_md5(data, datalen, Key, KeyLength, authenticator)
I've never looked into building a custom hash format. Would appreciate any tips or pointers?
Code:
where the Type, Length, Subtype, and SPI are as shown in section 5.
The resulting function call, as described in [5], would be:
hmac_md5(data, datalen, Key, KeyLength, authenticator);
Each mobile node MUST support the ability to produce the
authenticator by using HMAC-MD5 as shown. Just as with Mobile IP,
this default algorithm MUST be able to be configured for selection at
any arbitrary 32-bit SPI outside of the SPIs in the reserved range
0-255.Code:
0 1 2 3
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Type | Subtype | Length |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| SPI |
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
| Authenticator ...
+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
Figure 3: The Generalized Mobile IP Authentication Extension
Type 36 (not skippable) (see [8])
Subtype a number assigned to identify the kind of
endpoints or characteristics of the particular
authentication strategy
Length 4 plus the number of bytes in the Authenticator;
MUST be at least 20.
SPI Security Parameters Index
Authenticator The variable length Authenticator fieldCheers,
Josh
RE: MobileIP (RFC3012) - joshua1909 - 04-08-2022
If anyone is willing to take this on, I am happy to pay to get this implemented.