Checking if your kit is complete...
Looks good
Writing Makefile for Crypt::CFB
cp CFB.pm blib/lib/Crypt/CFB.pm
Manifying blib/man3/Crypt::CFB.3
PERL_DL_NONLAZY=1 /home/cpanrun/ia64/build/5.6.1/bin/perl -Iblib/arch -Iblib/lib -I/home/cpanrun/ia64/build/5.6.1/lib/5.6.1/IA64.ARCHREV_0-thread-multi -I/home/cpanrun/ia64/build/5.6.1/lib/5.6.1 test.pl

Seems as if we can use the following Crypt/Digest modules:
Digest::MD5
Digest::SHA1
Digest::MD2
1 .. 7
ok 1
ok 2
ok 3
ok 4
ok 5
ok 6
ok 7
Installing /home/cpanrun/ia64/build/5.6.1/lib/site_perl/5.6.1/Crypt/CFB.pm
Installing /home/cpanrun/ia64/build/5.6.1/man/man3/Crypt::CFB.3
Writing /home/cpanrun/ia64/build/5.6.1/lib/site_perl/5.6.1/IA64.ARCHREV_0-thread-multi/auto/Crypt/CFB/.packlist
Appending installation info to /home/cpanrun/ia64/build/5.6.1/lib/5.6.1/IA64.ARCHREV_0-thread-multi/perllocal.pod