louiz’
99a4ddedaf
This adds a hard dependency on one of Botan or gcrypt. Botan is already a recommended dependency, and gcrypt is probably packaged almost everywhere, so this should not be a big deal. ref #3241
33 lines
853 B
C++
33 lines
853 B
C++
#include <utils/sha1.hpp>
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#include <louloulibs.h>
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#ifdef BOTAN_FOUND
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# include <botan/hash.h>
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# include <botan/hex.h>
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#endif
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#ifdef GCRYPT_FOUND
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# include <gcrypt.h>
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# include <vector>
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# include <iomanip>
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# include <sstream>
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#endif
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std::string sha1(const std::string& input)
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{
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#ifdef BOTAN_FOUND
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auto sha1 = Botan::HashFunction::create_or_throw("SHA-1");
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sha1->update(input);
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return Botan::hex_encode(sha1->final(), false);
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#endif
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#ifdef GCRYPT_FOUND
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const auto hash_length = gcry_md_get_algo_dlen(GCRY_MD_SHA1);
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std::vector<uint8_t> output(hash_length, {});
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gcry_md_hash_buffer(GCRY_MD_SHA1, output.data(), input.data(), input.size());
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std::ostringstream digest;
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for (std::size_t i = 0; i < hash_length; i++)
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digest << std::hex << std::setfill('0') << std::setw(2) << static_cast<int>(output[i]);
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return digest.str();
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#endif
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}
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