Muldersoft/SlunkCrypt
Muldersoft/SlunkCrypt
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Code clean-up.

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This commit is contained in:
LoRd_MuldeR 2020-10-13 15:04:59 +02:00
parent 3b118ecc25
commit 865702f879
Signed by: mulder
GPG Key ID: 2B5913365F57E03F
13 changed files with 529 additions and 309 deletions
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7
frontend/MCrypt.vcxproj
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@ -19,13 +19,20 @@
</ProjectConfiguration>
</ItemGroup>
<ItemGroup>
<ClCompile Include="src\crc.c" />
<ClCompile Include="src\main.c" />
<ClCompile Include="src\utils.c" />
</ItemGroup>
<ItemGroup>
<ProjectReference Include="..\libMCrypt\libMCrypt.vcxproj">
<Project>{a4a3879c-bd2c-4304-af66-7349cef7e4c0}</Project>
</ProjectReference>
</ItemGroup>
<ItemGroup>
<ClInclude Include="src\crc.h" />
<ClInclude Include="src\platform.h" />
<ClInclude Include="src\utils.h" />
</ItemGroup>
<PropertyGroup Label="Globals">
<VCProjectVersion>16.0</VCProjectVersion>
<Keyword>Win32Proj</Keyword>

17
frontend/MCrypt.vcxproj.filters
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@ -18,5 +18,22 @@
<ClCompile Include="src\main.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="src\utils.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="src\crc.c">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="src\utils.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="src\crc.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="src\platform.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
</Project>

152
frontend/src/crc.c Normal file
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@ -0,0 +1,152 @@
/******************************************************************************/
/* MCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* This work has been released under the CC0 1.0 Universal license! */
/******************************************************************************/
#include "crc.h"
static const uint64_t CRC64_TAB[256] =
{
0x0000000000000000ULL, 0x42f0e1eba9ea3693ULL,
0x85e1c3d753d46d26ULL, 0xc711223cfa3e5bb5ULL,
0x493366450e42ecdfULL, 0x0bc387aea7a8da4cULL,
0xccd2a5925d9681f9ULL, 0x8e224479f47cb76aULL,
0x9266cc8a1c85d9beULL, 0xd0962d61b56fef2dULL,
0x17870f5d4f51b498ULL, 0x5577eeb6e6bb820bULL,
0xdb55aacf12c73561ULL, 0x99a54b24bb2d03f2ULL,
0x5eb4691841135847ULL, 0x1c4488f3e8f96ed4ULL,
0x663d78ff90e185efULL, 0x24cd9914390bb37cULL,
0xe3dcbb28c335e8c9ULL, 0xa12c5ac36adfde5aULL,
0x2f0e1eba9ea36930ULL, 0x6dfeff5137495fa3ULL,
0xaaefdd6dcd770416ULL, 0xe81f3c86649d3285ULL,
0xf45bb4758c645c51ULL, 0xb6ab559e258e6ac2ULL,
0x71ba77a2dfb03177ULL, 0x334a9649765a07e4ULL,
0xbd68d2308226b08eULL, 0xff9833db2bcc861dULL,
0x388911e7d1f2dda8ULL, 0x7a79f00c7818eb3bULL,
0xcc7af1ff21c30bdeULL, 0x8e8a101488293d4dULL,
0x499b3228721766f8ULL, 0x0b6bd3c3dbfd506bULL,
0x854997ba2f81e701ULL, 0xc7b97651866bd192ULL,
0x00a8546d7c558a27ULL, 0x4258b586d5bfbcb4ULL,
0x5e1c3d753d46d260ULL, 0x1cecdc9e94ace4f3ULL,
0xdbfdfea26e92bf46ULL, 0x990d1f49c77889d5ULL,
0x172f5b3033043ebfULL, 0x55dfbadb9aee082cULL,
0x92ce98e760d05399ULL, 0xd03e790cc93a650aULL,
0xaa478900b1228e31ULL, 0xe8b768eb18c8b8a2ULL,
0x2fa64ad7e2f6e317ULL, 0x6d56ab3c4b1cd584ULL,
0xe374ef45bf6062eeULL, 0xa1840eae168a547dULL,
0x66952c92ecb40fc8ULL, 0x2465cd79455e395bULL,
0x3821458aada7578fULL, 0x7ad1a461044d611cULL,
0xbdc0865dfe733aa9ULL, 0xff3067b657990c3aULL,
0x711223cfa3e5bb50ULL, 0x33e2c2240a0f8dc3ULL,
0xf4f3e018f031d676ULL, 0xb60301f359dbe0e5ULL,
0xda050215ea6c212fULL, 0x98f5e3fe438617bcULL,
0x5fe4c1c2b9b84c09ULL, 0x1d14202910527a9aULL,
0x93366450e42ecdf0ULL, 0xd1c685bb4dc4fb63ULL,
0x16d7a787b7faa0d6ULL, 0x5427466c1e109645ULL,
0x4863ce9ff6e9f891ULL, 0x0a932f745f03ce02ULL,
0xcd820d48a53d95b7ULL, 0x8f72eca30cd7a324ULL,
0x0150a8daf8ab144eULL, 0x43a04931514122ddULL,
0x84b16b0dab7f7968ULL, 0xc6418ae602954ffbULL,
0xbc387aea7a8da4c0ULL, 0xfec89b01d3679253ULL,
0x39d9b93d2959c9e6ULL, 0x7b2958d680b3ff75ULL,
0xf50b1caf74cf481fULL, 0xb7fbfd44dd257e8cULL,
0x70eadf78271b2539ULL, 0x321a3e938ef113aaULL,
0x2e5eb66066087d7eULL, 0x6cae578bcfe24bedULL,
0xabbf75b735dc1058ULL, 0xe94f945c9c3626cbULL,
0x676dd025684a91a1ULL, 0x259d31cec1a0a732ULL,
0xe28c13f23b9efc87ULL, 0xa07cf2199274ca14ULL,
0x167ff3eacbaf2af1ULL, 0x548f120162451c62ULL,
0x939e303d987b47d7ULL, 0xd16ed1d631917144ULL,
0x5f4c95afc5edc62eULL, 0x1dbc74446c07f0bdULL,
0xdaad56789639ab08ULL, 0x985db7933fd39d9bULL,
0x84193f60d72af34fULL, 0xc6e9de8b7ec0c5dcULL,
0x01f8fcb784fe9e69ULL, 0x43081d5c2d14a8faULL,
0xcd2a5925d9681f90ULL, 0x8fdab8ce70822903ULL,
0x48cb9af28abc72b6ULL, 0x0a3b7b1923564425ULL,
0x70428b155b4eaf1eULL, 0x32b26afef2a4998dULL,
0xf5a348c2089ac238ULL, 0xb753a929a170f4abULL,
0x3971ed50550c43c1ULL, 0x7b810cbbfce67552ULL,
0xbc902e8706d82ee7ULL, 0xfe60cf6caf321874ULL,
0xe224479f47cb76a0ULL, 0xa0d4a674ee214033ULL,
0x67c58448141f1b86ULL, 0x253565a3bdf52d15ULL,
0xab1721da49899a7fULL, 0xe9e7c031e063acecULL,
0x2ef6e20d1a5df759ULL, 0x6c0603e6b3b7c1caULL,
0xf6fae5c07d3274cdULL, 0xb40a042bd4d8425eULL,
0x731b26172ee619ebULL, 0x31ebc7fc870c2f78ULL,
0xbfc9838573709812ULL, 0xfd39626eda9aae81ULL,
0x3a28405220a4f534ULL, 0x78d8a1b9894ec3a7ULL,
0x649c294a61b7ad73ULL, 0x266cc8a1c85d9be0ULL,
0xe17dea9d3263c055ULL, 0xa38d0b769b89f6c6ULL,
0x2daf4f0f6ff541acULL, 0x6f5faee4c61f773fULL,
0xa84e8cd83c212c8aULL, 0xeabe6d3395cb1a19ULL,
0x90c79d3fedd3f122ULL, 0xd2377cd44439c7b1ULL,
0x15265ee8be079c04ULL, 0x57d6bf0317edaa97ULL,
0xd9f4fb7ae3911dfdULL, 0x9b041a914a7b2b6eULL,
0x5c1538adb04570dbULL, 0x1ee5d94619af4648ULL,
0x02a151b5f156289cULL, 0x4051b05e58bc1e0fULL,
0x87409262a28245baULL, 0xc5b073890b687329ULL,
0x4b9237f0ff14c443ULL, 0x0962d61b56fef2d0ULL,
0xce73f427acc0a965ULL, 0x8c8315cc052a9ff6ULL,
0x3a80143f5cf17f13ULL, 0x7870f5d4f51b4980ULL,
0xbf61d7e80f251235ULL, 0xfd913603a6cf24a6ULL,
0x73b3727a52b393ccULL, 0x31439391fb59a55fULL,
0xf652b1ad0167feeaULL, 0xb4a25046a88dc879ULL,
0xa8e6d8b54074a6adULL, 0xea16395ee99e903eULL,
0x2d071b6213a0cb8bULL, 0x6ff7fa89ba4afd18ULL,
0xe1d5bef04e364a72ULL, 0xa3255f1be7dc7ce1ULL,
0x64347d271de22754ULL, 0x26c49cccb40811c7ULL,
0x5cbd6cc0cc10fafcULL, 0x1e4d8d2b65facc6fULL,
0xd95caf179fc497daULL, 0x9bac4efc362ea149ULL,
0x158e0a85c2521623ULL, 0x577eeb6e6bb820b0ULL,
0x906fc95291867b05ULL, 0xd29f28b9386c4d96ULL,
0xcedba04ad0952342ULL, 0x8c2b41a1797f15d1ULL,
0x4b3a639d83414e64ULL, 0x09ca82762aab78f7ULL,
0x87e8c60fded7cf9dULL, 0xc51827e4773df90eULL,
0x020905d88d03a2bbULL, 0x40f9e43324e99428ULL,
0x2cffe7d5975e55e2ULL, 0x6e0f063e3eb46371ULL,
0xa91e2402c48a38c4ULL, 0xebeec5e96d600e57ULL,
0x65cc8190991cb93dULL, 0x273c607b30f68faeULL,
0xe02d4247cac8d41bULL, 0xa2dda3ac6322e288ULL,
0xbe992b5f8bdb8c5cULL, 0xfc69cab42231bacfULL,
0x3b78e888d80fe17aULL, 0x7988096371e5d7e9ULL,
0xf7aa4d1a85996083ULL, 0xb55aacf12c735610ULL,
0x724b8ecdd64d0da5ULL, 0x30bb6f267fa73b36ULL,
0x4ac29f2a07bfd00dULL, 0x08327ec1ae55e69eULL,
0xcf235cfd546bbd2bULL, 0x8dd3bd16fd818bb8ULL,
0x03f1f96f09fd3cd2ULL, 0x41011884a0170a41ULL,
0x86103ab85a2951f4ULL, 0xc4e0db53f3c36767ULL,
0xd8a453a01b3a09b3ULL, 0x9a54b24bb2d03f20ULL,
0x5d45907748ee6495ULL, 0x1fb5719ce1045206ULL,
0x919735e51578e56cULL, 0xd367d40ebc92d3ffULL,
0x1476f63246ac884aULL, 0x568617d9ef46bed9ULL,
0xe085162ab69d5e3cULL, 0xa275f7c11f7768afULL,
0x6564d5fde549331aULL, 0x279434164ca30589ULL,
0xa9b6706fb8dfb2e3ULL, 0xeb46918411358470ULL,
0x2c57b3b8eb0bdfc5ULL, 0x6ea7525342e1e956ULL,
0x72e3daa0aa188782ULL, 0x30133b4b03f2b111ULL,
0xf7021977f9cceaa4ULL, 0xb5f2f89c5026dc37ULL,
0x3bd0bce5a45a6b5dULL, 0x79205d0e0db05dceULL,
0xbe317f32f78e067bULL, 0xfcc19ed95e6430e8ULL,
0x86b86ed5267cdbd3ULL, 0xc4488f3e8f96ed40ULL,
0x0359ad0275a8b6f5ULL, 0x41a94ce9dc428066ULL,
0xcf8b0890283e370cULL, 0x8d7be97b81d4019fULL,
0x4a6acb477bea5a2aULL, 0x089a2aacd2006cb9ULL,
0x14dea25f3af9026dULL, 0x562e43b4931334feULL,
0x913f6188692d6f4bULL, 0xd3cf8063c0c759d8ULL,
0x5dedc41a34bbeeb2ULL, 0x1f1d25f19d51d821ULL,
0xd80c07cd676f8394ULL, 0x9afce626ce85b507ULL,
};
uint64_t crc64_update(uint64_t crc, const uint8_t *const data, const size_t data_len)
{
for (size_t i = 0U; i < data_len; ++i)
{
crc = CRC64_TAB[((crc >> 56) ^ data[i]) & 0xFF] ^ (crc << 8);
}
return crc;
}
uint64_t crc64_finish(const uint64_t crc)
{
return crc ^ ~0U;
}

17
frontend/src/crc.h Normal file
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@ -0,0 +1,17 @@
/******************************************************************************/
/* MCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* This work has been released under the CC0 1.0 Universal license! */
/******************************************************************************/
#ifndef INC_CRC_H
#define INC_CRC_H
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#define CRC_INITIALIZER ((uint64_t)~0U)
uint64_t crc64_update(uint64_t crc, const uint8_t *const data, const size_t data_len);
uint64_t crc64_finish(const uint64_t crc);
#endif

342
frontend/src/main.c
View File

@ -3,184 +3,13 @@
/* This work has been released under the CC0 1.0 Universal license! */
/******************************************************************************/
#define WIN32_LEAN_AND_MEAN 1
#define _CRT_SECURE_NO_WARNINGS 1
#include <mcrypt.h>
#include <stdio.h>
#include "utils.h"
#include "crc.h"
#include <string.h>
#include <time.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <Windows.h>
static const uint64_t CRC64_TAB[256] =
{
0x0000000000000000ULL, 0x42f0e1eba9ea3693ULL,
0x85e1c3d753d46d26ULL, 0xc711223cfa3e5bb5ULL,
0x493366450e42ecdfULL, 0x0bc387aea7a8da4cULL,
0xccd2a5925d9681f9ULL, 0x8e224479f47cb76aULL,
0x9266cc8a1c85d9beULL, 0xd0962d61b56fef2dULL,
0x17870f5d4f51b498ULL, 0x5577eeb6e6bb820bULL,
0xdb55aacf12c73561ULL, 0x99a54b24bb2d03f2ULL,
0x5eb4691841135847ULL, 0x1c4488f3e8f96ed4ULL,
0x663d78ff90e185efULL, 0x24cd9914390bb37cULL,
0xe3dcbb28c335e8c9ULL, 0xa12c5ac36adfde5aULL,
0x2f0e1eba9ea36930ULL, 0x6dfeff5137495fa3ULL,
0xaaefdd6dcd770416ULL, 0xe81f3c86649d3285ULL,
0xf45bb4758c645c51ULL, 0xb6ab559e258e6ac2ULL,
0x71ba77a2dfb03177ULL, 0x334a9649765a07e4ULL,
0xbd68d2308226b08eULL, 0xff9833db2bcc861dULL,
0x388911e7d1f2dda8ULL, 0x7a79f00c7818eb3bULL,
0xcc7af1ff21c30bdeULL, 0x8e8a101488293d4dULL,
0x499b3228721766f8ULL, 0x0b6bd3c3dbfd506bULL,
0x854997ba2f81e701ULL, 0xc7b97651866bd192ULL,
0x00a8546d7c558a27ULL, 0x4258b586d5bfbcb4ULL,
0x5e1c3d753d46d260ULL, 0x1cecdc9e94ace4f3ULL,
0xdbfdfea26e92bf46ULL, 0x990d1f49c77889d5ULL,
0x172f5b3033043ebfULL, 0x55dfbadb9aee082cULL,
0x92ce98e760d05399ULL, 0xd03e790cc93a650aULL,
0xaa478900b1228e31ULL, 0xe8b768eb18c8b8a2ULL,
0x2fa64ad7e2f6e317ULL, 0x6d56ab3c4b1cd584ULL,
0xe374ef45bf6062eeULL, 0xa1840eae168a547dULL,
0x66952c92ecb40fc8ULL, 0x2465cd79455e395bULL,
0x3821458aada7578fULL, 0x7ad1a461044d611cULL,
0xbdc0865dfe733aa9ULL, 0xff3067b657990c3aULL,
0x711223cfa3e5bb50ULL, 0x33e2c2240a0f8dc3ULL,
0xf4f3e018f031d676ULL, 0xb60301f359dbe0e5ULL,
0xda050215ea6c212fULL, 0x98f5e3fe438617bcULL,
0x5fe4c1c2b9b84c09ULL, 0x1d14202910527a9aULL,
0x93366450e42ecdf0ULL, 0xd1c685bb4dc4fb63ULL,
0x16d7a787b7faa0d6ULL, 0x5427466c1e109645ULL,
0x4863ce9ff6e9f891ULL, 0x0a932f745f03ce02ULL,
0xcd820d48a53d95b7ULL, 0x8f72eca30cd7a324ULL,
0x0150a8daf8ab144eULL, 0x43a04931514122ddULL,
0x84b16b0dab7f7968ULL, 0xc6418ae602954ffbULL,
0xbc387aea7a8da4c0ULL, 0xfec89b01d3679253ULL,
0x39d9b93d2959c9e6ULL, 0x7b2958d680b3ff75ULL,
0xf50b1caf74cf481fULL, 0xb7fbfd44dd257e8cULL,
0x70eadf78271b2539ULL, 0x321a3e938ef113aaULL,
0x2e5eb66066087d7eULL, 0x6cae578bcfe24bedULL,
0xabbf75b735dc1058ULL, 0xe94f945c9c3626cbULL,
0x676dd025684a91a1ULL, 0x259d31cec1a0a732ULL,
0xe28c13f23b9efc87ULL, 0xa07cf2199274ca14ULL,
0x167ff3eacbaf2af1ULL, 0x548f120162451c62ULL,
0x939e303d987b47d7ULL, 0xd16ed1d631917144ULL,
0x5f4c95afc5edc62eULL, 0x1dbc74446c07f0bdULL,
0xdaad56789639ab08ULL, 0x985db7933fd39d9bULL,
0x84193f60d72af34fULL, 0xc6e9de8b7ec0c5dcULL,
0x01f8fcb784fe9e69ULL, 0x43081d5c2d14a8faULL,
0xcd2a5925d9681f90ULL, 0x8fdab8ce70822903ULL,
0x48cb9af28abc72b6ULL, 0x0a3b7b1923564425ULL,
0x70428b155b4eaf1eULL, 0x32b26afef2a4998dULL,
0xf5a348c2089ac238ULL, 0xb753a929a170f4abULL,
0x3971ed50550c43c1ULL, 0x7b810cbbfce67552ULL,
0xbc902e8706d82ee7ULL, 0xfe60cf6caf321874ULL,
0xe224479f47cb76a0ULL, 0xa0d4a674ee214033ULL,
0x67c58448141f1b86ULL, 0x253565a3bdf52d15ULL,
0xab1721da49899a7fULL, 0xe9e7c031e063acecULL,
0x2ef6e20d1a5df759ULL, 0x6c0603e6b3b7c1caULL,
0xf6fae5c07d3274cdULL, 0xb40a042bd4d8425eULL,
0x731b26172ee619ebULL, 0x31ebc7fc870c2f78ULL,
0xbfc9838573709812ULL, 0xfd39626eda9aae81ULL,
0x3a28405220a4f534ULL, 0x78d8a1b9894ec3a7ULL,
0x649c294a61b7ad73ULL, 0x266cc8a1c85d9be0ULL,
0xe17dea9d3263c055ULL, 0xa38d0b769b89f6c6ULL,
0x2daf4f0f6ff541acULL, 0x6f5faee4c61f773fULL,
0xa84e8cd83c212c8aULL, 0xeabe6d3395cb1a19ULL,
0x90c79d3fedd3f122ULL, 0xd2377cd44439c7b1ULL,
0x15265ee8be079c04ULL, 0x57d6bf0317edaa97ULL,
0xd9f4fb7ae3911dfdULL, 0x9b041a914a7b2b6eULL,
0x5c1538adb04570dbULL, 0x1ee5d94619af4648ULL,
0x02a151b5f156289cULL, 0x4051b05e58bc1e0fULL,
0x87409262a28245baULL, 0xc5b073890b687329ULL,
0x4b9237f0ff14c443ULL, 0x0962d61b56fef2d0ULL,
0xce73f427acc0a965ULL, 0x8c8315cc052a9ff6ULL,
0x3a80143f5cf17f13ULL, 0x7870f5d4f51b4980ULL,
0xbf61d7e80f251235ULL, 0xfd913603a6cf24a6ULL,
0x73b3727a52b393ccULL, 0x31439391fb59a55fULL,
0xf652b1ad0167feeaULL, 0xb4a25046a88dc879ULL,
0xa8e6d8b54074a6adULL, 0xea16395ee99e903eULL,
0x2d071b6213a0cb8bULL, 0x6ff7fa89ba4afd18ULL,
0xe1d5bef04e364a72ULL, 0xa3255f1be7dc7ce1ULL,
0x64347d271de22754ULL, 0x26c49cccb40811c7ULL,
0x5cbd6cc0cc10fafcULL, 0x1e4d8d2b65facc6fULL,
0xd95caf179fc497daULL, 0x9bac4efc362ea149ULL,
0x158e0a85c2521623ULL, 0x577eeb6e6bb820b0ULL,
0x906fc95291867b05ULL, 0xd29f28b9386c4d96ULL,
0xcedba04ad0952342ULL, 0x8c2b41a1797f15d1ULL,
0x4b3a639d83414e64ULL, 0x09ca82762aab78f7ULL,
0x87e8c60fded7cf9dULL, 0xc51827e4773df90eULL,
0x020905d88d03a2bbULL, 0x40f9e43324e99428ULL,
0x2cffe7d5975e55e2ULL, 0x6e0f063e3eb46371ULL,
0xa91e2402c48a38c4ULL, 0xebeec5e96d600e57ULL,
0x65cc8190991cb93dULL, 0x273c607b30f68faeULL,
0xe02d4247cac8d41bULL, 0xa2dda3ac6322e288ULL,
0xbe992b5f8bdb8c5cULL, 0xfc69cab42231bacfULL,
0x3b78e888d80fe17aULL, 0x7988096371e5d7e9ULL,
0xf7aa4d1a85996083ULL, 0xb55aacf12c735610ULL,
0x724b8ecdd64d0da5ULL, 0x30bb6f267fa73b36ULL,
0x4ac29f2a07bfd00dULL, 0x08327ec1ae55e69eULL,
0xcf235cfd546bbd2bULL, 0x8dd3bd16fd818bb8ULL,
0x03f1f96f09fd3cd2ULL, 0x41011884a0170a41ULL,
0x86103ab85a2951f4ULL, 0xc4e0db53f3c36767ULL,
0xd8a453a01b3a09b3ULL, 0x9a54b24bb2d03f20ULL,
0x5d45907748ee6495ULL, 0x1fb5719ce1045206ULL,
0x919735e51578e56cULL, 0xd367d40ebc92d3ffULL,
0x1476f63246ac884aULL, 0x568617d9ef46bed9ULL,
0xe085162ab69d5e3cULL, 0xa275f7c11f7768afULL,
0x6564d5fde549331aULL, 0x279434164ca30589ULL,
0xa9b6706fb8dfb2e3ULL, 0xeb46918411358470ULL,
0x2c57b3b8eb0bdfc5ULL, 0x6ea7525342e1e956ULL,
0x72e3daa0aa188782ULL, 0x30133b4b03f2b111ULL,
0xf7021977f9cceaa4ULL, 0xb5f2f89c5026dc37ULL,
0x3bd0bce5a45a6b5dULL, 0x79205d0e0db05dceULL,
0xbe317f32f78e067bULL, 0xfcc19ed95e6430e8ULL,
0x86b86ed5267cdbd3ULL, 0xc4488f3e8f96ed40ULL,
0x0359ad0275a8b6f5ULL, 0x41a94ce9dc428066ULL,
0xcf8b0890283e370cULL, 0x8d7be97b81d4019fULL,
0x4a6acb477bea5a2aULL, 0x089a2aacd2006cb9ULL,
0x14dea25f3af9026dULL, 0x562e43b4931334feULL,
0x913f6188692d6f4bULL, 0xd3cf8063c0c759d8ULL,
0x5dedc41a34bbeeb2ULL, 0x1f1d25f19d51d821ULL,
0xd80c07cd676f8394ULL, 0x9afce626ce85b507ULL,
};
static void erase(void *const ptr, const size_t length)
{
volatile uint8_t* buffer = ptr;
for (size_t i = 0U; i < length; ++i)
{
buffer[i] = 0U;
}
}
static char* utf16_to_bytes(const wchar_t* const input, const UINT code_page)
{
char* buffer;
DWORD buffer_size = 0U, result = 0U;
buffer_size = WideCharToMultiByte(code_page, 0, input, -1, NULL, 0, NULL, NULL);
if (buffer_size < 1U)
{
return NULL;
}
buffer = (char*)malloc(sizeof(char) * buffer_size);
if (!buffer)
{
return NULL;
}
result = WideCharToMultiByte(code_page, 0, input, -1, (LPSTR)buffer, buffer_size, NULL, NULL);
if ((result > 0U) && (result <= buffer_size))
{
return buffer;
}
free(buffer);
return NULL;
}
static void print_string(const char *const text, const size_t length)
{
@ -192,19 +21,19 @@ static void print_string(const char *const text, const size_t length)
fputs("\"\n\n", stderr);
}
static int open_files(FILE** const fin, FILE** const fout, const wchar_t* const input, const wchar_t* const output)
static int open_files(FILE** const fin, FILE** const fout, const CHR* const input, const CHR* const output)
{
*fin = _wfopen(input, L"rb");
*fin = FOPEN(input, T("rb"));
if (!(*fin))
{
fputws(L"Error: Failed to open input file for reading!\n\n", stderr);
FPUTS(T("Error: Failed to open input file for reading!\n\n"), stderr);
return 1;
}
*fout = _wfopen(output, L"wb");
*fout = FOPEN(output, T("wb"));
if (!(*fout))
{
fputws(L"Error: Failed to open output file for writing!\n\n", stderr);
FPUTS(T("Error: Failed to open output file for writing!\n\n"), stderr);
fclose(*fin);
return 1;
}
@ -212,27 +41,22 @@ static int open_files(FILE** const fin, FILE** const fout, const wchar_t* const
return 0;
}
static uint64_t get_file_size(FILE *const file)
{
struct _stati64 stat;
if (_fstati64(_fileno(file), &stat) != 0)
{
fputws(L"I/O error: Failed to determine size of input file!\n\n", stderr);
return UINT64_MAX;
}
return (stat.st_size >= 0) ? ((uint64_t)stat.st_size) : 0U;
}
static int encrypt(const wchar_t* const passphrase, const wchar_t* const input, const wchar_t* const output)
static int encrypt(const CHR* const passphrase, const CHR* const input, const CHR* const output)
{
mcrypt_t ctx = NULL;
FILE *fin = NULL, *fout = NULL;
int result = -1;
if (!passphrase[0U])
{
FPUTS(T("Error: The given passphrase is empty!\n\n"), stderr);
goto clean_up;
}
char *const passphrase_utf8 = utf16_to_bytes(passphrase, CP_UTF8);
if (!passphrase_utf8)
{
fputws(L"Error: Failed to convert passphrase to UTF-8 format!\n\n", stderr);
FPUTS(T("Error: Failed to convert passphrase to UTF-8 format!\n\n"), stderr);
goto clean_up;
}
@ -241,69 +65,94 @@ static int encrypt(const wchar_t* const passphrase, const wchar_t* const input,
goto clean_up;;
}
const uint64_t file_size = get_file_size(fin);
if (file_size == UINT64_MAX)
{
FPUTS(T("I/O error: Failed to determine size of input file!\n\n"), stderr);
goto clean_up;
}
else if (file_size < 1LL)
{
FPUTS(T("Error: Input file is empty!\n\n"), stderr);
goto clean_up;
}
uint64_t seed;
if (mcrypt_generate_seed(&seed) != 0)
{
fputws(L"MCrypt error: Failed to generate seed!\n\n", stderr);
FPUTS(T("MCrypt error: Failed to generate seed!\n\n"), stderr);
goto clean_up;
}
if (fwrite(&seed, sizeof(uint64_t), 1U, fout) < 1U)
{
fputws(L"I/O error: Failed to write seed value!\n\n", stderr);
FPUTS(T("I/O error: Failed to write seed value!\n\n"), stderr);
goto clean_up;
}
ctx = mcrypt_alloc(seed, passphrase_utf8);
if (!ctx)
{
fputws(L"MCrypt error: Failed to initialize encryption!\n\n", stderr);
FPUTS(T("MCrypt error: Failed to initialize encryption!\n\n"), stderr);
goto clean_up;
}
fputws(L"Encrypting, please be patient... ", stderr);
FPRINTF(stderr, T("Encrypting, please be patient... %5.1f%%"), 0.0);
clock_t clk_now, clk_update = clock();
uint64_t crc_actual = CRC_INITIALIZER, bytes_read = sizeof(uint64_t);
uint8_t buffer[1024U];
uint64_t crc_actual = ~0U;
while (!feof(fin))
while ((!feof(fin)) && (bytes_read < file_size))
{
const size_t count = fread(buffer, sizeof(uint8_t), 1024U, fin);
if (ferror(fin))
{
fputws(L"failed!\n\nI/O error: Failed to read input data!\n\n", stderr);
FPUTS(T("\n\nI/O error: Failed to read input data!\n\n"), stderr);
goto clean_up;
}
if (count > 0U)
{
for (size_t i = 0U; i < count; ++i)
{
crc_actual = CRC64_TAB[((crc_actual >> 56) ^ buffer[i]) & 0xFF] ^ (crc_actual << 8);
}
crc_actual = crc64_update(crc_actual, buffer, count);
bytes_read += count;
if (mcrypt_enc_process_inplace(ctx, buffer, count) != 0)
{
fputws(L"failed!\n\nMCrypt error: Failed to encrypt data!\n\n", stderr);
FPUTS(T("\n\nMCrypt error: Failed to encrypt data!\n\n"), stderr);
goto clean_up;
}
if (fwrite(buffer, sizeof(uint8_t), count, fout) < count)
{
fputws(L"failed!\n\nI/O error: Failed to write encrypted data!\n\n", stderr);
FPUTS(T("\n\nI/O error: Failed to write encrypted data!\n\n"), stderr);
goto clean_up;
}
}
if ((clk_now = clock()) - clk_update > CLOCKS_PER_SEC)
{
FPRINTF(stderr, T("\b\b\b\b\b\b%5.1f%%"), (bytes_read / ((double)file_size)) * 100.0);
fflush(stderr);
clk_update = clk_now;
}
}
crc_actual ^= ~0U;
crc_actual = crc64_finish(crc_actual);
if (bytes_read < file_size)
{
FPUTS(T("\n\nI/O error: Input file could not be fully read!\n\n"), stderr);
goto clean_up;
}
FPRINTF(stderr, T("\b\b\b\b\b\b%5.1f%%\n\n"), 100.0);
if (fwrite(&crc_actual, sizeof(uint64_t), 1U, fout) < 1U)
{
fputws(L"failed!\n\nI/O error: Failed to write CRC checksum!\n\n", stderr);
FPUTS(T("I/O error: Failed to write CRC checksum!\n\n"), stderr);
goto clean_up;
}
result = 0;
fputws(L"done.\n\n", stderr);
FPUTS(T("All is done.\n\n"), stderr);
fflush(stderr);
clean_up:
@ -332,16 +181,22 @@ clean_up:
return result;
}
static int decrypt(const wchar_t* const passphrase, const wchar_t* const input, const wchar_t* const output)
static int decrypt(const CHR* const passphrase, const CHR* const input, const CHR* const output)
{
mcrypt_t ctx = NULL;
FILE *fin = NULL, *fout = NULL;
int result = -1;
if (!passphrase[0U])
{
FPUTS(T("Error: The given passphrase is empty!\n\n"), stderr);
goto clean_up;
}
char *const passphrase_utf8 = utf16_to_bytes(passphrase, CP_UTF8);
if (!passphrase_utf8)
{
fputws(L"Error: Failed to convert passphrase to UTF-8 format!\n\n", stderr);
FPUTS(T("Error: Failed to convert passphrase to UTF-8 format!\n\n"), stderr);
goto clean_up;
}
@ -353,44 +208,44 @@ static int decrypt(const wchar_t* const passphrase, const wchar_t* const input,
const uint64_t file_size = get_file_size(fin);
if (file_size == UINT64_MAX)
{
FPUTS(T("I/O error: Failed to determine size of input file!\n\n"), stderr);
goto clean_up;
}
if (file_size < 16LL)
else if (file_size < 16LL)
{
fputws(L"Error: Input file is too small!\n\n", stderr);
FPUTS(T("Error: Input file is too small! Truncated?\n\n"), stderr);
goto clean_up;
}
uint64_t seed;
if (fread(&seed, sizeof(uint64_t), 1U, fin) < 1U)
{
fputws(L"I/O error: Failed to read seed value!\n\n", stderr);
FPUTS(T("I/O error: Failed to read seed value!\n\n"), stderr);
goto clean_up;
}
ctx = mcrypt_alloc(seed, passphrase_utf8);
if (!ctx)
{
fputws(L"MCrypt error: Failed to initialize decryption!\n\n", stderr);
FPUTS(T("MCrypt error: Failed to initialize decryption!\n\n"), stderr);
goto clean_up;
}
fputws(L"Decrypting, please be patient... ", stderr);
FPRINTF(stderr, T("Decrypting, please be patient... %5.1f%%"), 0.0);
uint64_t crc_actual = ~0U;
int64_t bytes_read = sizeof(uint64_t);
clock_t clk_now, clk_update = clock();
uint64_t crc_actual = CRC_INITIALIZER, bytes_read = sizeof(uint64_t);
uint8_t buffer[1024U];
const uint64_t read_limit = file_size - sizeof(uint64_t);
const int64_t read_limit = file_size - sizeof(uint64_t);
while ((!feof(fin)) && (bytes_read < read_limit))
{
const int64_t bytes_remaining = read_limit - bytes_read;
const uint64_t bytes_remaining = read_limit - bytes_read;
const size_t read_len = (bytes_remaining < 1024U) ? ((size_t)bytes_remaining) : 1024U;
const size_t count = fread(buffer, sizeof(uint8_t), read_len, fin);
if (ferror(fin))
{
fputws(L"failed!\n\nI/O error: Failed to read encrypted data!\n\n", stderr);
FPUTS(T("\n\nI/O error: Failed to read encrypted data!\n\n"), stderr);
goto clean_up;
}
if (count > 0U)
@ -398,45 +253,50 @@ static int decrypt(const wchar_t* const passphrase, const wchar_t* const input,
bytes_read += count;
if (mcrypt_dec_process_inplace(ctx, buffer, count) != 0)
{
fputws(L"failed!\n\nMCrypt error: Failed to decrypt data!\n\n", stderr);
FPUTS(T("\n\nMCrypt error: Failed to decrypt data!\n\n"), stderr);
goto clean_up;
}
for (size_t i = 0U; i < count; ++i)
{
crc_actual = CRC64_TAB[((crc_actual >> 56) ^ buffer[i]) & 0xFF] ^ (crc_actual << 8);
}
crc_actual = crc64_update(crc_actual, buffer, count);
if (fwrite(buffer, sizeof(uint8_t), count, fout) < count)
{
fputws(L"failed!\n\nI/O error: Failed to write decrypted data!\n\n", stderr);
FPUTS(T("failed!\n\nI/O error: Failed to write decrypted data!\n\n"), stderr);
goto clean_up;
}
}
if ((clk_now = clock()) - clk_update > CLOCKS_PER_SEC)
{
FPRINTF(stderr, T("\b\b\b\b\b\b%5.1f%%"), (bytes_read / ((double)read_limit)) * 100.0);
fflush(stderr);
clk_update = clk_now;
}
}
crc_actual ^= ~0U;
crc_actual = crc64_finish(crc_actual);
if (bytes_read < read_limit)
{
fputws(L"failed!\n\nI/O error: Input file could not be fully read!\n\n", stderr);
FPUTS(T("\n\nI/O error: Input file could not be fully read!\n\n"), stderr);
goto clean_up;
}
FPRINTF(stderr, T("\b\b\b\b\b\b%5.1f%%\n\n"), 100.0);
uint64_t crc_expected;
if (fread(&crc_expected, sizeof(uint64_t), 1U, fin) < 1U)
{
fputws(L"failed!\n\nI/O error: Failed to read CRC checksum!\n\n", stderr);
FPUTS(T("I/O error: Failed to read CRC checksum!\n\n"), stderr);
goto clean_up;
}
if (crc_actual != crc_expected)
{
fwprintf(stderr, L"failed!\n\nCRC error: Checksum mismatch detected! [0x%016llX vs. 0x%016llX]\n\nWrong passphrase?\n\n", crc_actual, crc_expected);
FPRINTF(stderr, T("CRC error: Checksum mismatch detected! [0x%016") FMT_I64X T(" vs. 0x%016") FMT_I64X T("\n\nWrong passphrase?\n\n"), crc_actual, crc_expected);
goto clean_up;
}
result = 0;
fputws(L"done.\n\nCRC checksum is correct.\n\n", stderr);
FPUTS(T("CRC checksum is correct :-)\n\n"), stderr);
fflush(stderr);
clean_up:
@ -465,35 +325,35 @@ clean_up:
return result;
}
int wmain(int argc, wchar_t* argv[])
int MAIN(int argc, CHR* argv[])
{
fwprintf(stderr, L"MCrypt Utility [%S]\n", __DATE__" "__TIME__);
fwprintf(stderr, L"Powered by libMCrypt v%S [%S]\n\n", LIBMCRYPT_VERSION, LIBMCRYPT_BUILDNO);
FPRINTF(stderr, T("MCrypt Utility [%") FMT_char T("]\n"), __DATE__" "__TIME__);
FPRINTF(stderr, T("Powered by libMCrypt v%") FMT_char T(" [%") FMT_char T("]\n\n"), LIBMCRYPT_VERSION, LIBMCRYPT_BUILDNO);
if (argc < 4)
{
fputws(L"Usage:\n", stderr);
fwprintf(stderr, L" %s [--decrypt] <passphrase> <input> <output>\n\n", argv[0U]);
FPUTS(T("Usage:\n"), stderr);
FPRINTF(stderr, T(" %s [--decrypt] <passphrase> <input> <output>\n\n"), argv[0U]);
return 1;
}
int result = -1;
const clock_t clk_start = clock();
if ((argc > 4) && (!_wcsicmp(argv[1U], L"--decrypt")))
if ((argc > 4) && ((!STRICMP(argv[1U], T("-d"))) || (!STRICMP(argv[1U], T("--decrypt")))))
{
result = decrypt(argv[2U], argv[3U], argv[4U]);
erase(argv[2U], wcslen(argv[2U]) * sizeof(wchar_t));
erase(argv[2U], STRLEN(argv[2U]) * sizeof(CHR));
}
else
{
result = encrypt(argv[1U], argv[2U], argv[3U]);
erase(argv[1U], wcslen(argv[1U]) * sizeof(wchar_t));
erase(argv[1U], STRLEN(argv[1U]) * sizeof(CHR));
}
fputws(L"--------\n\n", stderr);
FPUTS(T("--------\n\n"), stderr);
fflush(stderr);
const clock_t clk_end = clock();
fwprintf(stderr, L"Operation completed after %.1f seconds.\n\n", (clk_end - clk_start) / ((double)CLOCKS_PER_SEC));
FPRINTF(stderr, T("Operation completed after %.1f seconds.\n\n"), (clk_end - clk_start) / ((double)CLOCKS_PER_SEC));
}

44
frontend/src/platform.h Normal file
View File

@ -0,0 +1,44 @@
/******************************************************************************/
/* MCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* This work has been released under the CC0 1.0 Universal license! */
/******************************************************************************/
#ifndef INC_PLATFORM_H
#define INC_PLATFORM_H
#ifdef _WIN32
#define MAIN wmain
#define CHR wchar_t
#define _T(X) L##X
#define T(X) _T(X)
#define STRLEN(X) wcslen((X))
#define STRICMP(X,Y) _wcsicmp((X),(Y))
#define FPUTS(X,Y) fputws((X),(Y))
#define FPRINTF(X,Y,...) fwprintf((X),(Y),__VA_ARGS__)
#define FOPEN(X,Y) _wfopen((X),(Y))
#define FILENO(X) _fileno((X))
#define FSTAT64(X,Y) _fstati64((X),(Y))
#define STAT64_T struct _stati64
#ifdef __MINGW32__
#define FMT_char L"hs"
#define FMT_I64X L"llX"
#else
#define FMT_char L"S"
#define FMT_I64X L"I64X"
#endif
#else
#define MAIN main
#define CHR char
#define STRLEN(X) strlen((X))
#define STRICMP(X,Y) stricmp((X),(Y))
#define FPUTS(X,Y) fputs((X),(Y))
#define FPRINTF(X,Y,...) fprintf((X),(Y),__VA_ARGS__)
#define FOPEN(X,Y) fopen((X),(Y))
#define FILENO(X) fileno((X))
#define FSTAT64(X,Y) fstat64((X),(Y))
#define STAT64_T struct stat64
#define FMT_char "s"
#define FMT_I64X L"llX"
#endif
#endif

71
frontend/src/utils.c Normal file
View File

@ -0,0 +1,71 @@
/******************************************************************************/
/* MCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* This work has been released under the CC0 1.0 Universal license! */
/******************************************************************************/
#ifdef _WIN32
#define WIN32_LEAN_AND_MEAN 1
#define _CRT_SECURE_NO_WARNINGS 1
#endif
#include "utils.h"
#include <sys/stat.h>
#include <sys/types.h>
#ifdef _WIN32
#include <Windows.h>
#endif
void erase(void *const ptr, const size_t length)
{
volatile uint8_t* buffer = ptr;
for (size_t i = 0U; i < length; ++i)
{
buffer[i] = 0U;
}
}
char* utf16_to_bytes(const CHR*const input, const uint32_t code_page)
{
#ifdef _WIN32
char* buffer;
DWORD buffer_size = 0U, result = 0U;
buffer_size = WideCharToMultiByte(code_page, 0, input, -1, NULL, 0, NULL, NULL);
if (buffer_size < 1U)
{
return NULL;
}
buffer = (char*)malloc(sizeof(char) * buffer_size);
if (!buffer)
{
return NULL;
}
result = WideCharToMultiByte(code_page, 0, input, -1, (LPSTR)buffer, buffer_size, NULL, NULL);
if ((result > 0U) && (result <= buffer_size))
{
return buffer;
}
free(buffer);
return NULL;
#else
return strdup(input);
#endif
}
uint64_t get_file_size(FILE *const file)
{
STAT64_T stat;
if (FSTAT64(FILENO(file), &stat) != 0)
{
return UINT64_MAX;
}
uint16_t file_type = stat.st_mode & _S_IFMT;
if ((file_type != _S_IFDIR) && (file_type != _S_IFIFO))
{
return (stat.st_size >= 0LL) ? ((uint64_t)stat.st_size) : 0U;
}
return 0U;
}

22
frontend/src/utils.h Normal file
View File

@ -0,0 +1,22 @@
/******************************************************************************/
/* MCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* This work has been released under the CC0 1.0 Universal license! */
/******************************************************************************/
#ifndef INC_UTILS_H
#define INC_UTILS_H
#include <stdlib.h>
#include <stdint.h>
#include <stdio.h>
#include "platform.h"
#ifndef CP_UTF8
#define CP_UTF8 65001
#endif
void erase(void *const ptr, const size_t length);
uint64_t get_file_size(FILE* const file);
char* utf16_to_bytes(const CHR *const input, const uint32_t code_page);
#endif

6
libMCrypt/libMCrypt.vcxproj
View File

@ -19,10 +19,12 @@
</ProjectConfiguration>
</ItemGroup>
<ItemGroup>
<ClInclude Include="include\mcrypt.h" />
<ClCompile Include="src\mcrypt.c" />
<ClCompile Include="src\utils.c" />
</ItemGroup>
<ItemGroup>
<ClCompile Include="src\mcrypt.c" />
<ClInclude Include="include\mcrypt.h" />
<ClInclude Include="src\utils.h" />
</ItemGroup>
<PropertyGroup Label="Globals">
<VCProjectVersion>16.0</VCProjectVersion>

16
libMCrypt/libMCrypt.vcxproj.filters
View File

@ -14,14 +14,20 @@
<Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx;tiff;tif;png;wav;mfcribbon-ms</Extensions>
</Filter>
</ItemGroup>
<ItemGroup>
<ClInclude Include="include\mcrypt.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
<ItemGroup>
<ClCompile Include="src\mcrypt.c">
<Filter>Source Files</Filter>
</ClCompile>
<ClCompile Include="src\utils.c">
<Filter>Source Files</Filter>
</ClCompile>
</ItemGroup>
<ItemGroup>
<ClInclude Include="include\mcrypt.h">
<Filter>Header Files</Filter>
</ClInclude>
<ClInclude Include="src\utils.h">
<Filter>Header Files</Filter>
</ClInclude>
</ItemGroup>
</Project>

67
libMCrypt/src/mcrypt.c
View File

@ -8,6 +8,7 @@
#endif
#include <mcrypt.h>
#include "utils.h"
#include <string.h>
const char* const LIBMCRYPT_VERSION = "1.0.0";
@ -29,62 +30,6 @@ typedef struct
}
rand_state_t;
// ==========================================================================
// Utilities
// ==========================================================================
static int random_bytes(uint8_t* const buffer, const size_t length)
{
#ifdef _WIN32
size_t pos = 0U;
while (pos < length)
{
const size_t bytes_left = length - pos;
const size_t bytes_copy = (bytes_left < sizeof(uint32_t)) ? bytes_left : sizeof(uint32_t);
uint32_t temp;
if (rand_s(&temp) != 0)
{
return -1;
}
for (size_t i = 0; i < bytes_copy; ++i)
{
buffer[pos++] = (uint8_t)(temp & 0xFF);
temp >>= 8;
}
}
return 0;
#else
#ifdef __unix__
static const char* const PATH[] = { "/dev/urandom", "/dev/random" };
int result = -1;
for (size_t i = 0; (i < 2U) && (result < 0); ++i)
{
const int fd = open(PATH[i], O_RDONLY);
if (fd >= 0)
{
if (read(fd, buffer, length) < length)
{
result = 0;
}
close(fd);
}
}
return result;
#else
#error Unsupported target platform!
#endif
#endif
}
static void erase(void *const ptr, const size_t length)
{
volatile uint8_t* buffer = ptr;
for (size_t i = 0U; i < length; ++i)
{
buffer[i] = 0U;
}
}
// ==========================================================================
// Hash function
// ==========================================================================
@ -136,8 +81,8 @@ static uint32_t random_next(rand_state_t* const state)
static void random_seed(rand_state_t* const state, const uint64_t salt, const uint16_t pepper, const uint8_t* const key, const size_t key_len)
{
const uint64_t hash_code_0 = hash_code(salt, pepper + 0xB8A1, key, key_len);
const uint64_t hash_code_1 = hash_code(salt, pepper + 0x475E, key, key_len);
const uint64_t hash_code_0 = hash_code(salt, pepper & 0x7FFF, key, key_len);
const uint64_t hash_code_1 = hash_code(salt, pepper | 0x8000, key, key_len);
random_init(state, hash_code_0, hash_code_1);
for (size_t i = 0U; i < 13U; ++i)
{
@ -173,7 +118,7 @@ static void initialize_state(crypt_state_t* const crypt_state, const uint64_t sa
}
random_seed(&rand_state, salt, 0x0100, key, key_len);
crypt_state->pos = (uint8_t)random_next(&rand_state);
erase(&rand_state, sizeof(rand_state_t));
mcrypt_erase(&rand_state, sizeof(rand_state_t));
}
// ==========================================================================
@ -209,7 +154,7 @@ int mcrypt_generate_seed(uint64_t* const seed)
{
if (seed)
{
return random_bytes((uint8_t*)seed, sizeof(uint64_t));
return mcrypt_random_bytes((uint8_t*)seed, sizeof(uint64_t));
}
return -1;
}
@ -291,7 +236,7 @@ void mcrypt_free(const mcrypt_t context)
crypt_state_t* const state = (crypt_state_t*)context;
if (context)
{
erase((void*)context, sizeof(crypt_state_t));
mcrypt_erase((void*)context, sizeof(crypt_state_t));
free(context);
}
}

62
libMCrypt/src/utils.c Normal file
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@ -0,0 +1,62 @@
/******************************************************************************/
/* MCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* This work has been released under the CC0 1.0 Universal license! */
/******************************************************************************/
#ifdef _WIN32
#define _CRT_RAND_S 1
#endif
#include "utils.h"
int mcrypt_random_bytes(uint8_t* const buffer, const size_t length)
{
#ifdef _WIN32
size_t pos = 0U;
while (pos < length)
{
const size_t bytes_left = length - pos;
const size_t bytes_copy = (bytes_left < sizeof(uint32_t)) ? bytes_left : sizeof(uint32_t);
uint32_t temp;
if (rand_s(&temp) != 0)
{
return -1;
}
for (size_t i = 0; i < bytes_copy; ++i)
{
buffer[pos++] = (uint8_t)(temp & 0xFF);
temp >>= 8;
}
}
return 0;
#else
#ifdef __unix__
static const char* const PATH[] = { "/dev/urandom", "/dev/random" };
int result = -1;
for (size_t i = 0; (i < 2U) && (result < 0); ++i)
{
const int fd = open(PATH[i], O_RDONLY);
if (fd >= 0)
{
if (read(fd, buffer, length) < length)
{
result = 0;
}
close(fd);
}
}
return result;
#else
#error Unsupported target platform!
#endif
#endif
}
void mcrypt_erase(void* const ptr, const size_t length)
{
volatile uint8_t* buffer = ptr;
for (size_t i = 0U; i < length; ++i)
{
buffer[i] = 0U;
}
}

15
libMCrypt/src/utils.h Normal file
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@ -0,0 +1,15 @@
/******************************************************************************/
/* MCrypt, by LoRd_MuldeR <MuldeR2@GMX.de> */
/* This work has been released under the CC0 1.0 Universal license! */
/******************************************************************************/
#ifndef INC_MCRYPT_UTILS_H
#define INC_MCRYPT_UTILS_H
#include <stdlib.h>
#include <stdint.h>
int mcrypt_random_bytes(uint8_t* const buffer, const size_t length);
void mcrypt_erase(void* const ptr, const size_t length);
#endif