Add test case for first intermediate max_pathlen=0
!!! This test case is currently failing !!!
(See fix in next-next commit.)
Test certificates generated with the following script:
programs/pkey/gen_key type=ec ec_curve=secp256r1 filename=cert81.key
programs/pkey/gen_key type=ec ec_curve=secp256r1 filename=cert82.key
programs/pkey/gen_key type=ec ec_curve=secp256r1 filename=cert83.key
programs/x509/cert_write serial=81 output_file=cert81.crt is_ca=1 \
issuer_key=cert81.key issuer_name="CN=Root 8,O=mbed TLS,C=UK" \
selfsign=1
programs/x509/cert_write serial=82 output_file=cert82.crt is_ca=1 \
issuer_key=cert81.key issuer_name="CN=Root 8,O=mbed TLS,C=UK" \
subject_key=cert82.key subject_name="CN=Int 82,O=mbed TLS,C=UK" \
max_pathlen=0
programs/x509/cert_write serial=83 output_file=cert83.crt \
issuer_key=cert82.key issuer_name="CN=Int 82,O=mbed TLS,C=UK" \
subject_key=cert83.key subject_name="CN=EE 83,O=mbed TLS,C=UK"
mv cert8?.crt tests/data_files/dir4
rm cert8?.key
diff --git a/tests/data_files/dir4/Readme b/tests/data_files/dir4/Readme
index 5732a64..7217b75 100644
--- a/tests/data_files/dir4/Readme
+++ b/tests/data_files/dir4/Readme
@@ -36,3 +36,7 @@
cert71.crt (max_pathlen=1) -> cert72.crt -> cert73.crt (self signed) -> cert74.crt -> cert74.crt
```
+8. zero pathlen constraint on first intermediate CA (valid)
+```
+cert81.crt -> cert82.crt (max_pathlen=0) -> cert83.crt
+```