Table 5 Time complexity of proposed RBFK ciphers, as well as others, for a single block of plaintext on an AVR architecture-based microcontroller, notably Atmega128
Ciphers | Block size (bit) | Key generation (µs) | Encryption (µs) | Decryption (µs) | Total execution (µs) |
|---|---|---|---|---|---|
AES (Stallings 2005) | 128 | 204.62 | 338.94 | 336.75 | 880.31 |
DES (Kumar et al. 2016) | 64 | 161.25 | 140.50 | 138.62 | 440.37 |
HIGHT (Kim et al. 2019) | 64 | 88.25 | 211.00 | 212.56 | 511.81 |
LEA (Jha 2011) | 128 | 268.12 | 232.69 | 236.50 | 737.31 |
PRESENT (Papapagiannopoulos 2016) | 64 | 160.62 | 465.44 | 463.87 | 1089.9 |
Simon (Beaulieu et al. 2014) | 64 | 186.94 | 123.75 | 120.31 | 431.00 |
Speck (Beaulieu et al. 2014) | 64 | 94.31 | 73.68 | 88.187 | 256.19 |
SIT (Usman et al. 2017) | 64 | 133.12 | 54.75 | 53.187 | 241.06 |
G-Cipher (Rana et al. 2018) | 64 | 101.87 | 49.50 | 49.312 | 200.69 |
RBFK-64 | 64 | 94.06 | 49.50 | 49.312 | 192.87 |
RBFK-128 | 64 | 188.12 | 49.50 | 49.312 | 286.97 |