代码如下：

#include <boost/algorithm/hex.hpp>
#include <boost/uuid/detail/md5.hpp>

bool GetMd5(std::string &str_md5, const char  * const buffer, size_t buffer_size)
	{
		if (buffer == nullptr)
		{
			return false;
		}
		boost::uuids::detail::md5 boost_md5;
		boost_md5.process_bytes(buffer, buffer_size);
		boost::uuids::detail::md5::digest_type digest;
		boost_md5.get_digest(digest);
		const auto char_digest = reinterpret_cast<const char*>(&digest);
		str_md5.clear();
		boost::algorithm::hex(char_digest,char_digest+sizeof(boost::uuids::detail::md5::digest_type), std::back_inserter(str_md5));
		return true;
	}