Adds resp_certid_keyhash_mismatch — a forged response signed by the
legitimate ocsp-responder whose CertID pairs the legitimate root CA's
issuerNameHash with the imposter root CA's issuerKeyHash. The new
test_ocsp_responder_keyhash_binding asserts wolfSSL_OCSP_basic_verify
rejects it, exercising the fix that requires both halves of the
CertID to match the responder's issuer.
- wolfSSL_i2d_OCSP_REQUEST_bio: save/restore pointer before i2d call
that advances it, preventing BIO_write from wrong offset and heap
corruption on free
- wolfSSL_d2i_OCSP_RESPONSE: remove (unsigned char) cast that truncated
pointer advance to 8 bits, breaking responses larger than 255 bytes
- wolfSSL_OCSP_CERTID_dup: deep-copy CertStatus to prevent double-free
when both original and duplicate are freed
- wolfSSL_i2d_OCSP_RESPONSE: add NULL check on response parameter
- wolfSSL_i2d_OCSP_REQUEST: advance *data pointer per i2d convention
- FreeOCSP: NULL-check ocsp->cm before dereferencing for heap
- Fix WOLFSSL_LEAVE strings to match actual function names in
wc_CheckCertOcspResponse, GetOcspEntry, GetOcspStatus,
CheckOcspResponse, CheckOcspRequest
Add test for CERTID dup (double-free confirmed under ASAN without fix)
and pointer advancement assertions for d2i_OCSP_RESPONSE callers.
Reported in: ZD21469
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
Exposes dynamic TLS certificate loading and OCSP stapling to allow applications to load certs lazily.
The server no longer needs to load the CA to staple OCSP responses.
Adds a certificate setup callback (WOLFSSL_CERT_SETUP_CB)
Adds an OCSP status callback to load OCSP responses directly
Adds `wc_NewOCSP`, `wc_FreeOCSP`, and `wc_CheckCertOcspResponse`
Don't call verify twice on the same error
Send correct alert on status response error
Juliusz Sosinowicz
Paul Adelsbach
JacobBarthelmeh
Marco Oliverio