300 lines
8.9 KiB
C++
300 lines
8.9 KiB
C++
/*
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* This file is a part of Winix
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* and is distributed under the 2-Clause BSD licence.
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* Author: Tomasz Sowa <t.sowa@ttmath.org>
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*/
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/*
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* Copyright (c) 2011-2014, Tomasz Sowa
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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*/
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#ifndef headerfile_winix_core_crypt
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#define headerfile_winix_core_crypt
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#include <string>
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#include "run.h"
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#include "config.h"
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#include "user.h"
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#include "winixbase.h"
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namespace Winix
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{
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/*
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the kind of hashes we are able to obtain in winix
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*/
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#define WINIX_CRYPT_HASH_NONE 0
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#define WINIX_CRYPT_HASH_MD4 1
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#define WINIX_CRYPT_HASH_MD5 2
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#define WINIX_CRYPT_HASH_SHA1 10
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#define WINIX_CRYPT_HASH_SHA224 11
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#define WINIX_CRYPT_HASH_SHA256 12
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#define WINIX_CRYPT_HASH_SHA384 13
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#define WINIX_CRYPT_HASH_SHA512 14
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/*
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calculating hashes, encrypting and decrypting with RSA
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*/
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class Crypt : public WinixBase
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{
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public:
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void set_dependency(WinixBase * winix_base);
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//void SetConfig(Config * pconfig);
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/*
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calculating a hash from a given input
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input:
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hash - the kind of the hash - WINIX_CRYPT_HASH_*
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in - input buffer
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inlen - the length of the buffer
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output:
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out - the hash in binary form
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*/
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bool HashBin(int hash, const char * in, size_t inlen, std::string & out);
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bool HashBin(int hash, const char * in, std::string & out);
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bool HashBin(int hash, const std::string & in, std::string & out);
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/*
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calculating a hash from a given input
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the input string is first changed to UTF8 and then hash is calculated
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input:
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hash - the kind of the hash - WINIX_CRYPT_HASH_*
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in - input buffer
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inlen - the length of the buffer
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output:
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out - the hash in binary form
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*/
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bool HashBin(int hash, const wchar_t * in, size_t inlen, std::string & out);
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bool HashBin(int hash, const wchar_t * in, std::string & out);
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bool HashBin(int hash, const std::wstring & in, std::string & out);
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/*
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calculating a hash from a given input
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input:
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hash - the kind of the hash - WINIX_CRYPT_HASH_*
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in - input buffer
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inlen - the length of the buffer
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output:
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out - the hash in the hex form (one byte is saved as two hex digits)
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*/
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bool HashHex(int hash, const char * in, size_t inlen, std::string & out);
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bool HashHex(int hash, const char * in, std::string & out);
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bool HashHex(int hash, const std::string & in, std::string & out);
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/*
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calculating a hash from a given input
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the input string is first changed to UTF8 and then hash is calculated
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input:
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hash - the kind of the hash - WINIX_CRYPT_HASH_*
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in - input buffer
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inlen - the length of the buffer
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output:
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out - the hash in the hex form (one byte is saved as two hex digits)
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the 'out' here is std::wstring (not std::string like beforehand)
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*/
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bool HashHex(int hash, const wchar_t * in, size_t inlen, std::wstring & out);
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bool HashHex(int hash, const wchar_t * in, std::wstring & out);
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bool HashHex(int hash, const std::wstring & in, std::wstring & out);
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/*
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encrypt/decrypt by using RSA algorithm
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input:
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encrypt - true means encrypting, false means decrypting
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keypath - path to a RSA private key (this is a private and public key in one file)
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in - input buffer
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inlen - the size of the buffer
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output:
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out - encrypted or decrypted buffer (always binary)
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*/
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bool RSA(bool encrypt, const char * keypath, const char * in, size_t inlen, std::string & out);
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bool RSA(bool encrypt, const char * keypath, const std::string & in, std::string & out);
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bool RSA(bool encrypt, const std::string & keypath, const std::string & in, std::string & out);
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bool RSA(bool encrypt, const wchar_t * keypath, const char * in, size_t inlen, std::string & out);
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bool RSA(bool encrypt, const wchar_t * keypath, const std::string & in, std::string & out);
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bool RSA(bool encrypt, const std::wstring & keypath, const std::string & in, std::string & out);
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/*
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this method creates a hash from the given plain text password
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input.
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salt - salt for the hash
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up.pass_type - what kind of hash do you want - look at WINIX_CRYPT_HASH_* macros (in crypt.h)
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up.pass - plain text password
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if salt is empty then the hash will not be salted
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output:
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up.pass_type - (can be changed to 0 when there is a problem with generating a hash)
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up.pass - hash from the password (or plain text if up.pass_type was zero)
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up.pass_hash_salted (true if the hash is salted - when salt was not empty)
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if there is a problem with generating a hash the method stores a plain text password
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and changes up.pass_type to zero (plain text passwords are not salted)
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*/
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bool PassHash(const std::wstring & salt, UserPass & up);
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/*
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this method encrypts the given password
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input:
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path_to_rsa_private_key - a path to rsa private key (this are a private and public keys both in one file)
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up.pass - given password (can be a plain text or a hash)
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if path_to_rsa_private_key is empty then the password will not be encrypted
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output:
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up.pass_encrypted
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if there is a problem (or the path to the key is empty) then up.pass_encrypted will be empty
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and the method returns false
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*/
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bool PassCrypt(const std::wstring & path_to_rsa_private_key, UserPass & up);
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/*
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this method creates a hash from the given plain text password and then encrypts it
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input:
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salt - salt for the hash
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path_to_rsa_private_key - a path to rsa private key (this are a private and public keys both in one file)
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up.pass_type - what kind of hash do you want - look at WINIX_CRYPT_HASH_* macros (in crypt.h)
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up.pass - plain text password
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if salt is empty then the hash will not be salted
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if path_to_rsa_private_key is empty then the password will not be encrypted
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output:
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up.pass_type - (can be changed to 0 when there is a problem with generating a hash)
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up.pass - hash from the password (or plain text if up.pass_type was zero)
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up.pass_hash_salted (true if the hash is salted - when salt was not empty)
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up.pass_encrypted - encrypted password (if not empty)
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*/
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void PassHashCrypt(const std::wstring & salt, const std::wstring & path_to_rsa_private_key, UserPass & up);
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/*
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this method creates a hash from the given plain text password and then encrypts it
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input:
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up.pass - plain text password
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output:
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up.pass_type - what kind of hash there is in up.pass
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up.pass - hash from the password (or plain text if up.pass_type is zero)
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up.pass_hash_salted - true if the hash is salted (plain text are never salted)
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up.pass_encrypted - encrypted password (if not empty)
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*/
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void PassHashCrypt(UserPass & up);
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/*
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putting some characters into the string and then calling clear()
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*/
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template<class StringType>
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void ClearString(StringType & str);
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private:
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//Config * config;
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Run run;
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std::string command, bufina, keypatha;
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//std::wstring pass_salted;//, pass_hashed;
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//std::string pass_hasheda, pass_encrypteda;
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std::wstring pass_salted, pass_org;
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std::string passa, out_temp;
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std::wstring empty;
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template<typename StringType>
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void ConvertToHexForm(const std::string & in, StringType & out);
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char ConvertToHexForm(int val);
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};
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template<typename StringType>
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void Crypt::ClearString(StringType & str)
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{
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for(size_t i=0 ; i<str.size() ; ++i)
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str[i] = 0x0c;
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str.clear();
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}
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template<typename StringType>
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void Crypt::ConvertToHexForm(const std::string & in, StringType & out)
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{
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out.clear();
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if( in.size() * 2 > out.capacity() )
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out.reserve(in.size() * 2);
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for(size_t i=0 ; i<in.size() ; ++i)
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{
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out += ConvertToHexForm(((unsigned char)in[i]) >> 4);
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out += ConvertToHexForm(((unsigned char)in[i]) & 0x0f);
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}
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}
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} // namespace Winix
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#endif
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