hash.hxx

Go to the documentation of this file.

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
 * This file is part of the LibreOffice project.
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
#ifndef INCLUDED_COMPHELPER_HASH_HXX
#define INCLUDED_COMPHELPER_HASH_HXX
 
#include <comphelper/comphelperdllapi.h>
#include <rtl/digest.h>
 
#include <memory>
#include <vector>
 
namespace rtl {
    class OUString;
}
 
namespace comphelper {
 
enum class HashType
{
    MD5,
    SHA1,
    SHA256,
    SHA512
};
 
const sal_uInt32 MD5_HASH_LENGTH = RTL_DIGEST_LENGTH_MD5;
const sal_uInt32 SHA1_HASH_LENGTH = RTL_DIGEST_LENGTH_SHA1;
const sal_uInt32 SHA256_HASH_LENGTH = 32;
const sal_uInt32 SHA512_HASH_LENGTH = 64;
 
struct HashImpl;
 
class COMPHELPER_DLLPUBLIC Hash
{
private:
    std::unique_ptr<HashImpl> mpImpl;
 
public:
 
    enum class IterCount
    {
        NONE,       
        PREPEND,    
        APPEND      
    };
 
    Hash(HashType eType);
    ~Hash();
 
    void update(const unsigned char* pInput, size_t length);
 
    std::vector<unsigned char> finalize();
 
    static std::vector<unsigned char> calculateHash(const unsigned char* pInput, size_t length, HashType eType);
 
    static std::vector<unsigned char> calculateHash(
            const unsigned char* pInput, size_t nLength,
            const unsigned char* pSalt, size_t nSaltLen,
            sal_uInt32 nSpinCount,
            IterCount eIterCount,
            HashType eType);
 
    static std::vector<unsigned char> calculateHash(
            const rtl::OUString& rPassword,
            const std::vector<unsigned char>& rSaltValue,
            sal_uInt32 nSpinCount,
            IterCount eIterCount,
            HashType eType);
 
    size_t getLength() const;
};
 
}
 
#endif // INCLUDED_COMPHELPER_HASH_HXX
 
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */