使用Crypto ++生成SHA1随机哈希

Question

我需要使用使用SHA1的Crypto ++生成随机哈希.目前我有:

#include <cryptopp/sha.h>
#include <cryptopp/filters.h>
#include <cryptopp/hex.h>

...

CryptoPP::SHA1 sha1;
string source = "Hello";  //This will be randomly generated somehow
string hash = "";
StringSource(source, true, new HashFilter(sha1, new HexEncoder(new StringSink(hash))));

当我来编译时,我收到以下错误报告:

error: expected type-specifier before 'HashFilter'
error: expected ')' before 'HashFilter'
error: 'StringSource' was not declared in this scope

谁能帮助我让这个工作？有没有一种更简单的方法来使用这个库执行此操作？我是使用Crypto ++的新手,所以非常感谢所有的帮助.

谢谢.

Answer 1

只需正确而仔细地指定您的命名空间:

#include <cryptopp/sha.h>
#include <cryptopp/filters.h>
#include <cryptopp/hex.h>

#include <string>

int main()
{
  CryptoPP::SHA1 sha1;
  std::string source = "Hello";  //This will be randomly generated somehow
  std::string hash = "";
  CryptoPP::StringSource(source, true, new CryptoPP::HashFilter(sha1, new CryptoPP::HexEncoder(new CryptoPP::StringSink(hash))));
}