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.
92 lines
2.1 KiB
C++
92 lines
2.1 KiB
C++
#include <vanetza/security/exception.hpp>
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#include <vanetza/security/v2/encryption_parameter.hpp>
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#include <vanetza/security/v2/public_key.hpp>
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#include <boost/variant/apply_visitor.hpp>
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#include <boost/variant/static_visitor.hpp>
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namespace vanetza
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{
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namespace security
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{
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namespace v2
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{
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SymmetricAlgorithm get_type(const EncryptionParameter& param)
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{
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struct Encryption_visitor : public boost::static_visitor<SymmetricAlgorithm>
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{
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SymmetricAlgorithm operator()(const Nonce&)
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{
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return SymmetricAlgorithm::AES128_CCM;
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}
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};
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Encryption_visitor visit;
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return boost::apply_visitor(visit, param);
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}
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void serialize(OutputArchive& ar, const EncryptionParameter& param)
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{
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struct Encryption_visitor : public boost::static_visitor<>
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{
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Encryption_visitor(OutputArchive& ar) :
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m_archive(ar)
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{
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}
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void operator()(const Nonce& nonce)
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{
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for (auto& byte : nonce) {
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m_archive << byte;
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}
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}
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OutputArchive& m_archive;
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};
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SymmetricAlgorithm algo = get_type(param);
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serialize(ar, algo);
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Encryption_visitor visit(ar);
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boost::apply_visitor(visit, param);
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}
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size_t get_size(const EncryptionParameter& param)
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{
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size_t size = sizeof(SymmetricAlgorithm);
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struct Encryption_visitor : public boost::static_visitor<size_t>
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{
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size_t operator()(const Nonce& nonce)
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{
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return nonce.size();
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}
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};
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Encryption_visitor visit;
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size += boost::apply_visitor(visit, param);
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return size;
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}
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size_t deserialize(InputArchive& ar, EncryptionParameter& param)
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{
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SymmetricAlgorithm algo;
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deserialize(ar, algo);
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switch (algo) {
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case SymmetricAlgorithm::AES128_CCM: {
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Nonce nonce;
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for (size_t s = 0; s < nonce.size(); s++) {
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ar >> nonce[s];
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}
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param = nonce;
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break;
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}
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default:
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throw deserialization_error("Unknown Symmetric Algorithm");
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break;
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}
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return get_size(param);
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}
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} // namespace v2
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} // namespace security
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} // namespace vanetza
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