# How I generate the keys and messages to verify:

# Generate and export two non-conflicting keys.
gpg --quick-gen-key 'Spy Cow <spy@cow.com>'
gpg --quick-gen-key 'Spy R. Cow <spy@cow.de>'

KEYIDA=1938C3A0E4674B6C217AC0B987DB2814EC38277E
KEYIDB=DC463A16E42F03240D76E8BA8B48C6BD871C2247

for KEYID in $KEYIDA $KEYIDB
do
  gpg --export $KEYID  > tofu-$KEYID.gpg
  gpg --export-secret-keys $KEYID  > tofu-$KEYID-secret.gpg
done

# Sign some data.
echo foo | gpg --default-key $KEYIDA -s > tofu-$KEYIDA-1.txt
echo foo | gpg --default-key $KEYIDB -s > tofu-$KEYIDB-1.txt

# Again, but with an issuer.
echo foo | gpg --default-key "<spy@cow.com>" -s > tofu-$KEYIDA-2.txt
echo foo | gpg --default-key "<spy@cow.de>" -s > tofu-$KEYIDB-2.txt

# Have A sign B and vice versa.
gpg --default-key $KEYIDA --quick-sign $KEYIDB
gpg --default-key $KEYIDB --quick-sign $KEYIDA

gpg --export $KEYIDA  > tofu-$KEYIDA-2.gpg
gpg --export $KEYIDB  > tofu-$KEYIDB-2.gpg

# Cause A and B to conflict.
gpg --quick-adduid $KEYIDB 'Spy R. Cow <spy@cow.com>'
gpg --export $KEYIDB  > tofu-$KEYIDB-3.gpg

echo foo | gpg --default-key "<spy@cow.com>" -s > tofu-$KEYIDA-3.txt
echo foo | gpg --default-key "<spy@cow.com>" -s > tofu-$KEYIDB-3.txt

# Have A sign B's conflicting user id.
gpg --default-key $KEYIDA --quick-sign $KEYIDB
gpg --export $KEYIDB  > tofu-$KEYIDB-4.gpg

exit 0

# In a new directory (so the keys are not ultimately trusted).

D=~/neal/work/gpg/test
echo 'trust-model tofu+pgp' > gpg.conf
gpg --import $D/tofu-$KEYIDA.gpg
gpg --import $D/tofu-$KEYIDB.gpg
gpg -k

gpg --verify $D/tofu-$KEYIDA-1.txt
gpg --verify $D/tofu-$KEYIDB-1.txt
# With an issuer.
gpg --verify $D/tofu-$KEYIDA-2.txt
gpg --verify $D/tofu-$KEYIDB-2.txt

# Import the cross signatures.
gpg --import $D/tofu-$KEYIDA-2.gpg
gpg --import $D/tofu-$KEYIDB-2.gpg
gpg -k

gpg --verify $D/tofu-$KEYIDA-1.txt
gpg --verify $D/tofu-$KEYIDB-1.txt
# With an issuer.
gpg --verify $D/tofu-$KEYIDA-2.txt
gpg --verify $D/tofu-$KEYIDB-2.txt


gpg --status-fd=1 --batch --verify $D/tofu-$KEYIDA-3.txt | grep TRUST_UNDEFINED
gpg --status-fd=1 --batch --verify $D/tofu-$KEYIDB-3.txt | grep TRUST_UNDEFINED

# Import the conflicting user id.
gpg --import $D/tofu-$KEYIDB-3.gpg
gpg -k

# Import the cross signature, which should remove the conflict.
gpg --import $D/tofu-$KEYIDB-4.gpg
gpg -k