A compile time encryption library for integral constants without macro abuse. Unique encryption keys and encryption algorithms for every usage. Completly new output for each compilation. Tested and working on MSVC, Clang, and GCC.
Example Usage
#include "encryption.h"
int main() {
std::println("0x{:X}", INTEGRAL_ENC(0xDEADBEEFULL)); // '0xDEADBEEF'
}Decompiled
This result uses a low 10-instruction encryption depth. Two printf examples encrypting 0xDEADBEEF. As you can see, this results in two completely different encryption algorithms.
int __cdecl main(int argc, const char **argv, const char **envp)
{
_main(argc, argv, envp);
printf(
"0x%llx\n",
__ROR8__(
__ROR8__(
__ROR8__(__ROR8__(__ROL8__(0x7207DF2079FF2C9Bi64, 29) - 0x1A788208BBC958i64, 6) - 0x64999D2B5148BF9Ei64, 26)
+ 0x4F5AB27444FC3235i64,
8)
- 0x7246DA45C94DBA54i64,
21));
printf(
"0x%llx\n",
__ROL8__(
__ROL8__(
__ROR8__(
__ROL8__(__ROL8__(__ROR8__(__ROR8__(__ROR8__(__ROR8__(0xFD56A635BA2D8EAEui64, 17), 14), 11), 15), 4), 29),
13) ^ 0xADBE3AAA006AB531ui64,
26),
15));
return 0;
}An example with 300 instructions:
int __cdecl main(int argc, const char **argv, const char **envp)
{
__int64 v3; // rax
_main(argc, argv, envp);
v3 = __ROR8__(
(__ROR8__(
(__ROR8__(
__ROL8__(
__ROR8__(
__ROL8__(
__ROL8__(
((__ROR8__(
__ROL8__(
__ROR8__(
__ROL8__(
(((__ROL8__(
__ROL8__(
__ROR8__(
__ROL8__(
__ROL8__(
__ROR8__(
__ROL8__(
(__ROR8__(
__ROR8__(
(((__ROR8__(
((__ROR8__(
__ROR8__(
__ROR8__(
__ROR8__(
((__ROR8__(
__ROL8__(
__ROL8__(
__ROR8__(
__ROR8__(
(__ROR8__(
(__ROL8__(
__ROR8__(
__ROL8__(
__ROL8__(
__ROL8__(
__ROR8__(
__ROR8__(
(__ROR8__(__ROL8__(((__ROL8__((__ROR8__(__ROL8__(__ROL8__(__ROL8__(__ROL8__(__ROL8__(__ROR8__(__ROR8__(__ROL8__((__ROR8__(__ROL8__(__ROL8__((__ROL8__(((__ROR8__(__ROL8__(__ROL8__(__ROR8__(0x630A6871F263AED4i64, 23), 23) - 0x69EC96B301E30A93i64, 20), 24) + 0x7A6D4DE6B0111442i64) ^ 0xE5FAA69D133C04ACui64) + 0x70FF915D8E72B4D2i64, 14) ^ 0x318D3A0F6ADB25i64) - 0x6C07235ACF574F8Fi64, 30), 31), 10) ^ 0x8773D7F6B8FB29DCui64) + 0x691D1305EEF3B1ECi64, 23) ^ 0xDF63A025BF28D900ui64, 30) - 0x42B37F1E2357642Ei64 + 0x4D540B34BF333ECBi64, 7), 8) ^ 0xF8F236BCF4B01C39ui64, 17) ^ 0x298CDFFDDEDB343Ei64, 4) - 0x133C6CF215673229i64 + 0x1754C2648CD0F066i64, 13), 16), 2) + 0x4FAB57EE773E43F0i64) ^ 0x8F3574BF294E86F1ui64, 6) - 0x77BC18DBD0B99D3Ci64) ^ 0x7DAF30086C70F6A0i64) + 0x3DB8EFCA6179E1BBi64, 22) ^ 0xE88112EC066A675Cui64, 12) ^ 0xAF91BD656CAB7DB2ui64) - 0x10C599E56F59C7C4i64,
29),
3),
28),
23),
15)
- 0x70D42AA5A60C1348i64,
26)
- 0x19C887D7F3CD56Bi64
+ 0x235774D21286E179i64,
31)
+ 0x5640E6B76A345820i64) ^ 0x13A6E78B5AD9CD0i64,
11) ^ 0xD3F38FEAA1A4E2F0ui64)
+ 0x3DF91B1053C91F17i64,
20) ^ 0xBD9E5B2E094AEF6i64,
22),
10) ^ 0x75FC25CC9CEB78C1i64,
21),
3)
+ 0x5557DD871A4EC98i64) ^ 0x9881F88D6C95D9FDui64)
+ 0x51902D7827BE0606i64,
19)
- 0x2310CF08FB6025D7i64
+ 0x2CA41186CBD091A1i64,
25)
- 0x528DD9AC802079A6i64,
13)
+ 0x2F219F9C13AA9B4Di64,
2)
- 0x4B32B32A2F6B4EBBi64) ^ 0x7177DE4F74CE863Ai64)
- 0x10A21C535F97B9EBi64,
9) ^ 0x9FA0B449326C0BBFui64)
+ 0x520112368C395D60i64) ^ 0xACE80E4DF749B515ui64)
- 0x1CF7EFF8C06F8589i64,
10)
+ 0x28EA70E28BD68882i64,
26) ^ 0xE3EFEE9914BF80Bi64)
+ 0x4800AB36BAD5B40Fi64,
22)
- 0x59D204CC4BD2B6E5i64,
3),
16)
- 0x592761BFF5D3FA3i64,
30),
10)
+ 0x1A7F21AF0E7F82F9i64,
15),
15)
- 0x79E2AB60329CAD48i64) ^ 0xED4464974596B619ui64)
+ 0x4D7E3AFE18A34168i64) ^ 0x8628FEC694B3DCAEui64,
5) ^ 0xC80F377E6B869D99ui64,
29),
25),
10)
- 0x21C5D6EFD5595F73i64) ^ 0xB16C463B4BBA7AF5ui64)
- 0x311A83A6127643A5i64,
20)
+ 0x36109AD725CAA51Ci64,
16)
+ 0x5F85F2D709C13623i64,
21),
13)
+ 0x7F950A6D16C53767i64,
2) ^ 0xF0A1633C666684C4ui64)
- 0x71A6F78FA1C919BDi64,
10)
- 0x1E8E5473CEF46CBAi64) ^ 0x37A8AEF11889C1EBi64,
15);
printf(
"0x%llx\n",
__ROL8__(
__ROR8__(
(__ROR8__(
__ROL8__(
__ROL8__(
__ROL8__(
__ROL8__(
__ROR8__(
__ROL8__(
__ROL8__(
__ROL8__(
__ROL8__(
__ROR8__(
__ROR8__(
__ROL8__(
__ROR8__(
__ROL8__(
__ROL8__(
(__ROR8__(
__ROR8__(
__ROR8__(
__ROL8__(
__ROR8__(
__ROL8__(
(__ROL8__(
__ROL8__(
__ROL8__(
__ROR8__(
__ROR8__(
__ROL8__(
__ROL8__(
__ROL8__(
__ROR8__(
__ROR8__(
(__ROL8__(
__ROR8__(
__ROR8__(
__ROL8__(
__ROR8__(
__ROR8__(
(__ROR8__(
__ROR8__(
((__ROR8__(
__ROR8__(
__ROR8__(
__ROL8__(__ROR8__(__ROR8__(__ROR8__(__ROR8__((__ROL8__((__ROR8__((__ROR8__((__ROL8__(__ROR8__(__ROR8__(__ROL8__(((((__ROL8__(__ROR8__(__ROR8__((__ROR8__(__ROL8__(__ROR8__((((__ROL8__((v3 ^ 0xA570ECDF19C2F21Eui64) - 0x2635DDE182BFCE06i64 + 0xEC7C2EF1719AAC0i64, 11) ^ 0x8E197906747BC79Bui64) - 0x7659FE86CE9B095Ai64 + 0x393C0D810DF398D6i64) ^ 0x9F931446BAA12516ui64) + 0x6C4A0B8A819A5229i64, 31), 20) ^ 0xE43FFD3FF8663B81ui64, 31) ^ 0x5D42AF6D685BDEA7i64) + 0x86837B4FF85E700i64, 28), 17) - 0x7CCF01B2545EA385i64, 4) - 0x1679F0F63D8BF9C5i64) ^ 0xB71835982E2C93B7ui64) - 0x163234F5278998D9i64) ^ 0xE13FA7D374956F96ui64) - 0x1E34DA180080B573i64, 27) - 0x1B48A3DAF78EC70Ci64, 24), 4), 28) - 0x1B67A65B7C0CDBC6i64) ^ 0xE3E4D53183B65A34ui64, 4) - 0x4FED61E7F2D6BDB5i64) ^ 0xC247D554ACA0B34Fui64, 23) ^ 0xF01AEB9DC7674332ui64) - 0x5919D6DCB988789Ci64, 18) ^ 0xFF49FFF3A37ECE74ui64) + 0x3473BB69013854Bi64, 14), 10), 12), 12), 11),
25),
25),
12)
+ 0x13ECE76DC23D2F04i64) ^ 0x70205009ED0D8AC6i64)
+ 0x315DB4FAD62E8420i64,
15)
- 0x51A7805E6B5EA5ADi64,
11)
- 0xC0C9CEF4E7B07FCi64) ^ 0x7AA4E23CD0C62EF8i64,
9),
18),
8)
- 0x75407195B6654C98i64
+ 0x56835142DB95E34Di64,
24),
29),
2) ^ 0xFD47E98A7423D8Fi64)
+ 0x3A1D67754EC35B96i64,
4)
- 0x215BFF79AD42579Fi64,
29),
14),
28)
+ 0x6CC0A14946F53054i64,
9),
12) ^ 0x2DFD1D9CD0C2FB18i64,
13),
20),
9)
- 0x86587ABAABF80CEi64
+ 0x42657D18F6C5A255i64,
23) ^ 0x52AEE0D781C67FDFi64)
- 0x2ABB2E16CE472CEDi64,
16),
24)
- 0x617CB5B2412B0624i64
+ 0x73B8DBAA3A96C25Bi64,
13)
+ 0x1F308A2EF059B698i64,
14)
- 0x6E53548228E24648i64,
1),
27) ^ 0x8BFE9DD0D7820B3Fui64)
- 0x46A30C055FF3153Di64,
20),
8)
+ 0x7C47E62F1D0AA05Fi64,
23) ^ 0xAC18282FDE895D84ui64,
23)
+ 0x559353729D579DB0i64,
17),
24),
23)
+ 0x27B08F096011ADD0i64,
22)
- 0x7AC7C4E0B59AB8FAi64,
32) ^ 0xC0EC161CE242C8F2ui64,
10)
+ 0x3E56622453F054BBi64,
3),
5) ^ 0xE8563885CBB44193ui64,
8)
- 0xA2AA05D749AD458i64,
17)
+ 0x59070C26B4439DF1i64,
18),
16) ^ 0xFCED10623693FD5i64)
- 0x1A90151777DC820Ci64,
4),
25)
+ 0x6CA4991342618E57i64);
return 0;
}Notes
Your encrypted value will at some point appear on the stack. It's important to remember that this is only an inconvenience for reverse engineers. There is no BCF or other inconveniences for reverse engineers in this library. All of the encryption could be automatically optimized away.