| Title |
Dviejų blokinių šifrų, paremtų matricinio laipsnio funkcija, skaičiuoklės režimų taikymas trumpiems ir ilgiems pranešimams šifruoti |
| Translation of Title |
Application of the CTR modes of two matrix power function-based block ciphers to encrypt short and long messages. |
| Authors |
Levinskas, Matas |
| Full Text |
|
| Pages |
50 |
| Keywords [eng] |
Block cipher ; symmetric cipher ; matrix power function ; CBC ; CTR |
| Abstract [eng] |
Advancements in quantum computer computational capabilities brings us closer to the day when currently used cryptographic algorithms will not be sufficient to ensure the safety of encrypted data. In this paper we are focusing on two perfectly secure block cyphers which should provide enough complexity to ensure security against quantum computers. After comparing obtained results, it was noticed that by applying CBC mode of operations it ensures that no information about the plaintext is visible by having only ciphertext. However, it was spotted that there is a need for some additional modifications for CTR mode to ensure that the ciphertext does not contain any information about the plaintext. Furthermore, it was noticed that the larger is the order of the block, the more time it takes to encrypt the plaintext. Also, if we would take 16-bit elements and increase order of the group it will ensure faster encryption time, reducing number of blocks needed to encrypt the plaintext. |
| Dissertation Institution |
Kauno technologijos universitetas. |
| Type |
Master thesis |
| Language |
Lithuanian |
| Publication date |
2023 |
