authorized any responder issued by an ancestor of the target's issuer;
RFC 6960 4.2.2.2 requires direct issuance by the CA identified in the
request.
- Remove CheckOcspResponderChain() and WOLFSSL_NO_OCSP_ISSUER_CHAIN_CHECK.
- Drop now-unused vp parameter from CheckOcspResponder() and the
OcspRespCheck() helper; cascade through template and non-template
paths.
OCSP test blobs:
- Re-sign resp_server1_cert with intermediate1-ca (CA-direct path).
- Add resp_server1_cert_ancestor_responder for the negative test.
- Embed server1_cert_pem[] in test_ocsp_test_blobs.h so the new test
runs under NO_FILESYSTEM; matching entry added to
create_ocsp_test_blobs.py.
- Regenerate response[] in test_certman.c with intermediate1-ca as
signer; recipe switched from Wireshark export to openssl -respout
+ xxd -i for reproducibility.
- Fix self-XOR in test_wolfSSL_CertManagerCheckOCSPResponse so the
serial byte actually flips (^= 0xFF).
Live OCSP coverage:
- Add ocsp-responder-int1 (delegated responder issued directly by
intermediate1-ca, with id-kp-OCSPSigning EKU) for the
responder->intermediate->root chain.
- scripts/ocsp-stapling.test: intermediate1 responder switched to
ocsp-responder-int1 (delegated path).
- scripts/ocsp-stapling2.test, scripts/ocsp-stapling_tls13multi.test:
intermediate2 and intermediate3 sign their OCSP responses with
their own CA keys (CA-direct path); root block unchanged
(ocsp-responder-cert is still RFC-compliant for root-issued certs).
- .github/workflows/ocsp.yml: server1 OCSP responder switched to
ocsp-responder-int1 to match the cert chain.
- New test_ocsp_ancestor_responder_rejected confirms the
ancestor-issued response is rejected with OCSP_LOOKUP_FAIL.
- Use KEYID_SIZE for Signer key-hash comparisons since
Signer.{subject,issuer}KeyHash is sized KEYID_SIZE, not OCSP_DIGEST_SIZE.
- Rename subjectHash/issuerHash to subjectNameHash/issuerNameHash in
CheckOcspResponder/CheckOcspResponderChain to make the name-vs-key
hash distinction explicit.
- Expand the Signer.issuerKeyHash field comment to clarify it is the
subject key hash of the immediate issuer CA.
- Add an imposter-root-ca cert (same DN as root-ca, different RSA key)
for tests that need to exercise the new CertID issuerKeyHash binding.
OCSP Responder Core API:
- Add new public API for creating and managing an OCSP responder
- Add public wrappers for internal OCSP request/response functions
- OcspRespCheck: fix check when authorized responder is loaded into CM
Header Cleanup:
- Remove circular dependency when including `#include <wolfssl/wolfcrypt/asn.h>` from wolfssl/wolfcrypt/ecc.h and wolfssl/wolfcrypt/rsa.h
OCSP Responder Example (examples/ocsp_responder/):
- Add a command-line OCSP responder for interoperability testing with OpenSSL's `openssl ocsp` client
Test Scripts (scripts/):
- ocsp-responder-openssl-interop.test: Tests wolfSSL OCSP responder with `openssl ocsp` client
- ocsp-stapling-with-wolfssl-responder.test: Tests wolfSSL OCSP responder when doing OCSP stapling
Certificate Infrastructure (certs/ocsp/):
- Add DER-format certificates and keys for OCSP testing
- Update renewcerts.sh to generate DER versions
Known Limitations (documented in src/ocsp.c header comment):
- Single request/response per OCSP exchange only
- Key-hash responder ID only (no name-based responder ID)
- No singleExtensions support
Emma Stensland
Ruby Martin
Juliusz Sosinowicz
Paul Adelsbach
Marco Oliverio
Andras Fekete
JacobBarthelmeh
kaleb-himes
Moisés Guimarães