50 lines
1.4 KiB
C++
50 lines
1.4 KiB
C++
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#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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