Potential IDPrism problem

[meepbear *]

My consumer fails trying to ID with the IDPrism sample server. The problem 
could be on my end but it's tripping over the fact that the base64 decoded 
enc_mac_key isn't 20 bytes long and the trace seems to support it's not on 
my end.

Here's the body of what I'm getting back:
---
issued:2005-06-30T06:12:31Z
session_type:DH-SHA1
assoc_type:HMAC-SHA1
dh_server_public:bo9RVfVg9Cy9CeeQf8Q5YWgSwz5vUhTUXlDM5UBPJNER1mbmpKJMZ2UQ1m6NqmQOzFGn95MtT4WFw3X4PN5RVIrnba/ZYBxFOTFFu9r5i0lGx3zrx0xxrTY59DHkPA8Wj3h6MkH2yKopHciOK093rNCibUgRth2CcTZRBP3Kg44=
expiry:2005-06-30T06:17:31Z
enc_mac_key:AA==
replace_after:2005-06-30T06:16:31Z
assoc_handle:10
---