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.
81 lines
1.7 KiB
C++
81 lines
1.7 KiB
C++
#include <vanetza/security/hashed_id.hpp>
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#include <boost/functional/hash.hpp>
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#include <algorithm>
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#include <cassert>
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#include <iomanip>
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#include <sstream>
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namespace vanetza
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{
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namespace security
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{
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HashedId3 truncate(const HashedId8& in)
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{
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HashedId3 out;
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assert(out.size() <= in.size());
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std::copy_n(in.rbegin(), out.size(), out.rbegin());
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return out;
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}
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HashedId8 create_hashed_id8(const Sha256Digest& digest)
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{
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HashedId8 hashed;
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std::copy(digest.end() - 8, digest.end(), hashed.data());
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return hashed;
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}
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HashedId8 create_hashed_id8(const Sha384Digest& digest)
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{
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HashedId8 hashed;
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std::copy(digest.end() - 8, digest.end(), hashed.data());
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return hashed;
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}
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std::string to_string(const vanetza::security::HashedId3& digest)
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{
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std::stringstream ss;
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ss << std::hex << std::setfill('0');
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for (uint8_t octet : digest)
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{
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ss << std::setw(2) << static_cast<unsigned>(octet);
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}
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return ss.str();
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}
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std::string to_string(const vanetza::security::HashedId8& digest)
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{
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std::stringstream ss;
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ss << std::hex << std::setfill('0');
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for (uint8_t octet : digest)
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{
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ss << std::setw(2) << static_cast<unsigned>(octet);
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}
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return ss.str();
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}
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} // namespace security
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} // namespace vanetza
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namespace std
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{
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size_t hash<vanetza::security::HashedId3>::operator()(const vanetza::security::HashedId3& hid3) const
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{
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size_t seed = 0;
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for (uint8_t octet : hid3) {
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boost::hash_combine(seed, octet);
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}
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return seed;
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}
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size_t hash<vanetza::security::HashedId8>::operator()(const vanetza::security::HashedId8& hid8) const
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{
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size_t seed = 0;
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for (uint8_t octet : hid8) {
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boost::hash_combine(seed, octet);
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}
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return seed;
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}
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} // namespace std
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