Mats Erik Andersson <gnu@gisl...> writes:

> Hello there,
>
> 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
>
>   shishi_authenticator_cksum()
>
> 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?

Interesting, are you able to reproduce this in some easy way?  Could
this be related to this problem:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=670316

Maybe you could try that patch and see if it solves your problem.

There is a bunch of ugly casts in Shish that could explain issues like
this.  I'd like to address them, but goings are going slowly...

/Simon

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