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.
50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
#include <vanetza/security/sha.hpp>
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#ifdef VANETZA_WITH_CRYPTOPP
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#include <cryptopp/sha.h>
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#endif
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#ifdef VANETZA_WITH_OPENSSL
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#include <openssl/sha.h>
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#endif
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namespace vanetza
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{
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namespace security
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{
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Sha256Digest calculate_sha256_digest(const uint8_t* data, std::size_t len)
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{
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Sha256Digest digest;
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#if defined VANETZA_WITH_OPENSSL
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static_assert(SHA256_DIGEST_LENGTH == digest.size(), "size of OpenSSL SHA256_DIGEST_LENGTH does not match");
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SHA256_CTX ctx;
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SHA256_Init(&ctx);
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SHA256_Update(&ctx, data, len);
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SHA256_Final(digest.data(), &ctx);
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#elif defined VANETZA_WITH_CRYPTOPP
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static_assert(CryptoPP::SHA256::DIGESTSIZE == digest.size(), "size of CryptoPP::SHA256 does not match digest");
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CryptoPP::SHA256 hash;
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hash.CalculateDigest(digest.data(), data, len);
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#else
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# error "no SHA256 implementation available"
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#endif
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return digest;
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}
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Sha384Digest calculate_sha384_digest(const uint8_t* data, std::size_t len)
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{
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Sha384Digest digest;
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#if defined VANETZA_WITH_OPENSSL
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SHA384(data, len, digest.data());
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#elif defined VANETZA_WITH_CRYPTOPP
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static_assert(CryptoPP::SHA384::DIGESTSIZE == digest.size(), "size of CryptoPP::SHA384 does not match digest");
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CryptoPP::SHA384 hash;
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hash.CalculateDigest(digest.data(), data, len);
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#else
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# error "no SHA384 implementation available"
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#endif
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return digest;
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}
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} // namespace security
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} // namespace vanetza
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