redis/redis-py · error · ConnectionError

failed to valid ocsp response

Error message

failed to valid ocsp response

What it means

Error "failed to valid ocsp response" thrown in redis/redis-py.

Source

Thrown at redis/ocsp.py:47

                PKCS1v15(),
                ocsp_response.signature_hash_algorithm,
            )
        elif isinstance(pubkey, DSAPublicKey):
            pubkey.verify(
                ocsp_response.signature,
                ocsp_response.tbs_response_bytes,
                ocsp_response.signature_hash_algorithm,
            )
        elif isinstance(pubkey, EllipticCurvePublicKey):
            pubkey.verify(
                ocsp_response.signature,
                ocsp_response.tbs_response_bytes,
                ECDSA(ocsp_response.signature_hash_algorithm),
            )
        else:
            pubkey.verify(ocsp_response.signature, ocsp_response.tbs_response_bytes)
    except InvalidSignature:
        raise ConnectionError("failed to valid ocsp response")


def _check_certificate(issuer_cert, ocsp_bytes, validate=True):
    """A wrapper the return the validity of a known ocsp certificate"""

    ocsp_response = ocsp.load_der_ocsp_response(ocsp_bytes)

    if ocsp_response.response_status == ocsp.OCSPResponseStatus.UNAUTHORIZED:
        raise AuthorizationError("you are not authorized to view this ocsp certificate")
    if ocsp_response.response_status == ocsp.OCSPResponseStatus.SUCCESSFUL:
        if ocsp_response.certificate_status != ocsp.OCSPCertStatus.GOOD:
            raise ConnectionError(
                f"Received an {str(ocsp_response.certificate_status).split('.')[1]} "
                "ocsp certificate status"
            )
    else:
        raise ConnectionError(
            "failed to retrieve a successful response from the ocsp responder"

View on GitHub (pinned to da03cdc7e8)

When it happens

Trigger: Thrown at redis/ocsp.py:47 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of redis/redis-py@da03cdc7e8 (2026-08-04). Data as JSON: /data/errors/9fddc19bd34e5f82.json. Report an issue: GitHub.