implement Signed-By option for sources.list

Limits which key(s) can be used to sign a repository. Not immensely useful
from a security perspective all by itself, but if the user has
additional measures in place to confine a repository (like pinning) an
attacker who gets the key for such a repository is limited to its
potential and can't use the key to sign its attacks for an other (maybe
less limited) repository… (yes, this is as weak as it sounds, but having
the capability might come in handy for implementing other stuff later).

1 files changed, 16 insertions, 7 deletions

diff --git a/test/integration/framework b/test/integration/framework
index 059cba9fb..6ae5003f7 100644
--- a/test/integration/framework
+++ b/test/integration/framework
@@ -1414,14 +1414,23 @@ testfailure() {
 	else
 		local EXITCODE=$?
 		if expr match "$1" '^apt.*' >/dev/null; then
-			if grep -q -E ' runtime error: ' "$OUTPUT"; then
-				msgfailoutput 'compiler detected undefined behavior' "$OUTPUT" "$@"
-			elif grep -q -E '==ERROR' "$OUTPUT"; then
-				msgfailoutput 'compiler sanitizers reported errors' "$OUTPUT" "$@"
-			elif ! grep -q -E '^E: ' "$OUTPUT"; then
-				msgfailoutput "run failed with exitcode ${EXITCODE}, but with no errors" "$OUTPUT" "$@"
+			if [ "$1" = 'aptkey' ]; then
+				if grep -q -E " Can't check signature: " "$OUTPUT" || \
+					grep -q -E " BAD signature from " "$OUTPUT"; then
+					msgpass
+				else
+					msgfailoutput "run failed with exitcode ${EXITCODE}, but no signature error" "$OUTPUT" "$@"
+				fi
 			else
-				msgpass
+				if grep -q -E ' runtime error: ' "$OUTPUT"; then
+					msgfailoutput 'compiler detected undefined behavior' "$OUTPUT" "$@"
+				elif grep -q -E '==ERROR' "$OUTPUT"; then
+					msgfailoutput 'compiler sanitizers reported errors' "$OUTPUT" "$@"
+				elif ! grep -q -E '^E: ' "$OUTPUT"; then
+					msgfailoutput "run failed with exitcode ${EXITCODE}, but with no errors" "$OUTPUT" "$@"
+				else
+					msgpass
+				fi
 			fi
 		else
 			msgpass