I have found a discrepancy between 32-bit Wheezy and
64-bit Squeeze systems.
Both systems deliver cksumtype 0x07 and length 16
as reported by ASN.1 verbose reports, but
is returning cksumtype 0x07 on i386, and 0x00 on amd64.
As a consequence, shishi_checksum() is returning data
of length 12, when fed with the previous setup data.
Manually forcing cksumtype 0x07 into shishi_checksum(),
by overriding the claim from shishi_authenticator_cksum(),
will restore the expected functionality.
Thus shishi_asn1_read() is not able to firmly establish
the encryption type, but ASN.1 reports correct debugging
text. It seems that shishi_asn1_read_int32() and macro
C2I are defective. Broken representation of ASN.1 data?
Mats Erik Andersson, on behalf of GNU Inetutils.