AndrewB330 / Crypto330

University project. AES, Kalyna + Test + Benchmarks + OMP

Crypto330

University project. Implementation of:

• AES block cipher (128, 196, 256 key sizes)
• Kalyna block cipher (128/128, 256/128, 256/256, 512/256, 512/512 types)
• RC4 stream cipher (n = 8)
• ECB, CBC, CFB, OFB, CTR block cipher mode of operation
• Salsa
• RSA + OAEP
• Elliptic Curves Signature

Usage

CMake:

add_subdirectory(crypto330)
target_link_libraries(<TARGET_NAME> crypto330)

Code:

#include <crypto330/block/aes.hpp>
#include <crypto330/block/kalyna.hpp>
#include <crypto330/stream/block_stream.hpp>
#include <crypto330/stream/rc4.hpp>

// ...

AES cipher(AES::Type::AES128, "0022446688AACCEE", /*key represented as hex?*/ true);
Kalyna cipher2(Kalyna::Type::K128_128, "0022446688AACCEE", true);

cipher.EncryptFile("my_precious_file.txt", "encrypted.txt");
cipher.DecryptFile("encrypted.txt", "decrypted.txt");

// OR

std::vector<uint8_t> data = {0x01, 0xb2, ..., 0x32, 0xfa}; // any bytes
cipher.Encrypt(data); // in-place encryption
cipher.Decrypt(data); // in-place decryption

BlockStreamEncryption enc(std::make_unique<AES>(AES::Type::AES128, "Cool AES Key"));
enc.Encrypt(data, BlockStreamEncryption::Mode::CFB);
enc.Decrypt(data, BlockStreamEncryption::Mode::CFB);

RC4 rc4("Cool RC4 Key");
rc4.Encrypt(data);
rc4.Decrypt(data);

Benchmarks Block Encryption

This implementation uses OpenMP if available, so it will be parallel by default. Also, Kalyna implementation is not completely optimal.

Algorithm	Encrypt+Decrypt 1GB (OMP disabled)	Encrypt+Decrypt 1GB (OMP enabled)
AES128	35.6s	11.3s
Kalyna 128/128	242.0s	79.5s
AES256	59.1s	18.4s
Kalyna 512/512	342.1s	113.7s

Benchmarks Stream Encryption

Algorithm	128MB
Salsa	1.53s
RC4	0.77s
ECB AES	5.3s
CBC AES	5.3s
CFB AES	7.6s
OFB AES	6.4s
CTR AES	6.8s

Benchmarks RSA with OAEP Encryption

Public key size*	KeyGen	Encrypt 1KB	Decrypt 1KB	Decrypt 1KB + Optimization
1024 Bit	~2.38 s	0.02 s	1.64 s	0.61 s
2048 Bit	~20.1 s	0.03 s	3.23 s	1.20 s

*Size of the product of two primes, both prime numbers have half this size