| Item type |
デフォルトアイテムタイプ_（フル）(1) |
| 公開日 |
2023-03-18 |
| タイトル |
|
|
タイトル |
Cryptographic mersenne twister and fubuki stream/block cipher |
|
言語 |
en |
| 作成者 |
Matsumoto, Makoto
Nishimura, Takuji
Hagita, Mariko
Saito, Mutsuo
|
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Mersenne Twister |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
non-secure random number generator |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
stream cipher |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
CryptMT |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
Fubuki |
| 主題 |
|
|
主題Scheme |
Other |
|
主題 |
AES |
| 主題 |
|
|
主題Scheme |
NDC |
|
主題 |
410 |
| 内容記述 |
|
|
内容記述 |
We propose two stream ciphers based on a non-secure pseudorandom number generator (called the mother generator). The mother generator is here chosen to be the Mersenne Twister (MT), a widely used 32-bit integer generator having 19937 bits of internal state and period 2[19937]-1. One proposal is CryptMT, which computes the accumulative product of the output of MT, and use the most significant 8 bits as a secure random numbers. Its period is proved to be 2[19937] -1, and it is 1.5-2.0 times faster than the most optimized AES in counter-mode. The other proposal, named Fubuki, is designed to be usable also as a block cipher. It prepares nine different kinds of encryption functions (bijections from blocks to blocks), each of which takes a parameter. Fubuki encrypts a sequence of blocks(=a plain message) by applying these encryption functions iteratedly to each of the blocks. Both the combination of the functions and their parameters are pseudorandomly chosen by using its mother generator MT. The key and the initial value are passed to the initialization scheme of MT. |
|
言語 |
en |
| 日付 |
|
|
日付 |
2005-07 |
|
日付タイプ |
Created |
| 言語 |
|
|
言語 |
eng |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_1843 |
|
資源タイプ |
other |
| 出版タイプ |
|
|
出版タイプ |
AO |
|
出版タイプResource |
http://purl.org/coar/version/c_b1a7d7d4d402bcce |
| 旧ID |
15039 |
Cryptographic.pdf (184.6 KB)
