github.com/igggame/nebulas-go@v2.1.0+incompatible/nbre/crypto/hash.cpp (about)

     1  // Copyright (C) 2018 go-nebulas authors
     2  //
     3  // This file is part of the go-nebulas library.
     4  //
     5  // the go-nebulas library is free software: you can redistribute it and/or
     6  // modify
     7  // it under the terms of the GNU General Public License as published by
     8  // the Free Software Foundation, either version 3 of the License, or
     9  // (at your option) any later version.
    10  //
    11  // the go-nebulas library is distributed in the hope that it will be useful,
    12  // but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  // GNU General Public License for more details.
    15  //
    16  // You should have received a copy of the GNU General Public License
    17  // along with the go-nebulas library.  If not, see
    18  // <http://www.gnu.org/licenses/>.
    19  //
    20  #include "crypto/hash.h"
    21  
    22  namespace neb {
    23  namespace crypto {
    24  
    25  sha3_256_hash_t sha3_256_hash(const bytes &b) {
    26    CryptoPP::SHA3_256 s;
    27    assert(s.DigestSize() == 32);
    28    s.Update(b.value(), b.size());
    29    sha3_256_hash_t ret;
    30    s.TruncatedFinal(ret.value(), ret.size());
    31    return ret;
    32  }
    33  
    34  } // namespace crypto
    35  } // namespace neb