Ashin Walpola
d107534eb2
obu-firmware builds against the vanetza-idf C-ITS library, which until now came from the colleague's microbu-esp32c5 tree beside the repository and was not tracked here, so a clone of this repository could not build the firmware it ships. The library alone is now part of obu-firmware, as obu-firmware/external/vanetza-idf: their external/vanetza-idf at commit cf4b99f, unchanged (9775 files; see its PROVENANCE.md). CMake takes it from there by default; -DVANETZA_IDF_DIR still points the build elsewhere. The rest of the colleague's tree (their own VAM firmware, PKI tooling, station-link Python tools, the V2X2MAP bridge) stays out of this repository and gitignored; nothing is pushed to their repository. NOTES.md, docs/06, TODO.md and the pcap verifier's usage line point at the new location.
59 lines
2.3 KiB
C++
59 lines
2.3 KiB
C++
#pragma once
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#include "asn1.hpp"
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#include "certificate.hpp"
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#include "keys.hpp"
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#include <vanetza/asn1/asn1c_wrapper.hpp>
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#include <vanetza/asn1/security/EtsiTs103097Certificate.h>
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#include <vanetza/common/clock.hpp>
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#include <vanetza/security/v3/basic_elements.hpp>
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#include <chrono>
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#include <cstdlib>
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namespace vanetza
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{
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namespace pki
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{
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// Minimal certificate built around a given verification key (and optional
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// encryption key). Not TS-compliant (no issuer chain, no permissions, no
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// signature) but just enough that get_public_key/get_encryption_key return our
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// keys and the cert OER-encodes so calculate_hashed_id8 is stable. Intended
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// for unit tests where the cert only needs to act as a key holder + digest
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// source.
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inline Certificate build_stub_certificate(const PublicKey& verify_key, const PublicKey* encryption_key = nullptr,
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Clock::time_point valid_since = Clock::time_point {}, std::chrono::hours validity = std::chrono::hours(24))
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{
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asn1::asn1c_oer_wrapper<Vanetza_Security_EtsiTs103097Certificate_t>
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cert(asn_DEF_Vanetza_Security_EtsiTs103097Certificate);
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cert->version = 3;
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cert->type = Vanetza_Security_CertificateType_explicit;
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cert->issuer.present = Vanetza_Security_IssuerIdentifier_PR_self;
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cert->issuer.choice.self = Vanetza_Security_HashAlgorithm_sha256;
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auto& tbs = cert->toBeSigned;
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tbs.id.present = Vanetza_Security_CertificateId_PR_name;
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OCTET_STRING_fromBuf(&tbs.id.choice.name, "test-cert", 9);
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tbs.cracaId.buf = static_cast<uint8_t*>(std::calloc(3, 1));
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tbs.cracaId.size = 3;
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tbs.crlSeries = 0;
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tbs.validityPeriod.start = security::v3::convert_time32(valid_since);
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tbs.validityPeriod.duration.present = Vanetza_Security_Duration_PR_hours;
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tbs.validityPeriod.duration.choice.hours = validity.count();
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tbs.verifyKeyIndicator.present = Vanetza_Security_VerificationKeyIndicator_PR_verificationKey;
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set_verification_key(tbs.verifyKeyIndicator.choice.verificationKey, verify_key);
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if (encryption_key) {
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tbs.encryptionKey = asn1::allocate<Vanetza_Security_PublicEncryptionKey_t>();
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set_encryption_key(*tbs.encryptionKey, *encryption_key);
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}
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Certificate result;
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ByteBuffer encoded = cert.encode();
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result.decode(encoded);
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return result;
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}
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} // namespace pki
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} // namespace vanetza
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