Copyright Mehdi Sotoodeh. All rights reserved. mehdisotoodeh@gmail.com
This code and accompanying files are put in public domain by the author. You are free to use, copy, modify and distribute this software as long as you comply with the license terms. See license.txt file for details.
This a proprietary, lightweight and high performance integer encoder. Currently 32 and 64 bit integer encryption/decryption are provided but it is generic enough that can be applied to any integer size.
To use this library, you may include the required library sources or use it as a static or dynamic library. See the demo file in the test folder.
The API is simple. You initialize the key context (state information) using your secret key and then use encrypt or decrypt interfaces for the integer size of your choice.
Knwon Answer Tests:
KAT: i32encoder ...
00000000 --E--> dd88efec --D--> 00000000 -- PASS
00000001 --E--> 9c3af872 --D--> 00000001 -- PASS
10000000 --E--> 2bedadb3 --D--> 10000000 -- PASS
44e0aac2 --E--> 108aa84a --D--> 44e0aac2 -- PASS
8bcfe6af --E--> 2fe50f00 --D--> 8bcfe6af -- PASS
2434b90b --E--> 31cd013c --D--> 2434b90b -- PASS
e5d02a2a --E--> e2133d51 --D--> e5d02a2a -- PASS
266c9a72 --E--> 92a28d83 --D--> 266c9a72 -- PASS
156769bc --E--> f097563f --D--> 156769bc -- PASS
a57c5777 --E--> cc0c5db0 --D--> a57c5777 -- PASS
KAT: i64encoder ...
0000000000000000 --E--> f13fcadb0422ac00 --D--> 0000000000000000 -- PASS
0000000000000001 --E--> bb632c03d107b9bf --D--> 0000000000000001 -- PASS
0000000000000010 --E--> 879dd8f434557e8e --D--> 0000000000000010 -- PASS
9999999999999999 --E--> 6b7f89de31467cc3 --D--> 9999999999999999 -- PASS
931deb4ceb4802b6 --E--> 001030484a3265a6 --D--> 931deb4ceb4802b6 -- PASS
5e046fe51654b354 --E--> cd57eec3d5230573 --D--> 5e046fe51654b354 -- PASS
f22ab69390799033 --E--> 9a13f3c575cf8e12 --D--> f22ab69390799033 -- PASS
8ab554aca02eae5f --E--> fa75b0d449c138a0 --D--> 8ab554aca02eae5f -- PASS
8801f649c7ebf6c5 --E--> e8076a3e6173be3d --D--> 8801f649c7ebf6c5 -- PASS
09f43ac6689830e2 --E--> 134640b5807035d8 --D--> 09f43ac6689830e2 -- PASS
You have the option of pre-generating one or more key context blobs and embedding them directly into your code. This gives you the best performance since you do not need to load your key every time you want to encrypt or decrypt a number.