| Presentation | 2002/1/23 On the Security of Secret Key Cryptosystems against Quantum Algorithms Kazuo OHTA, Tetsuro NISHINO, Kazumaro AOKI, |
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| PDF Download Page | PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | In this paper, we discuss quantum algorithms that finds a secret key k_0 satisfying c_0=E (k_0,m_0) given m_0 and c_0,where an encryption algorithm E is publicly available, k_0 is a secret key, m_0 is plaintexts and c_0 is ciphertexts. We will propose a new algorithm suitable for implementation by BQTM (including NMR) based on the technique to solve the counting problem. It has the trade-off between the complexity of the number of the oracles calls and the measurement accuracy of NMR by introducing a Boolean function F_r^<(d)>. The complexity is conjectured under the reasonable assumptions, and the small experimental results are reported. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | Grover's Algorithm / Secret-Key Cryptosystem / Secret Key Search / NMR Computer / Bulk Quantum Turing Machine |
| Paper # | COMP2001-74 |
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| Conference Information | |
| Committee | COMP |
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| Conference Date | 2002/1/23(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Theoretical Foundations of Computing (COMP) |
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| Language | ENG |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | On the Security of Secret Key Cryptosystems against Quantum Algorithms |
| Sub Title (in English) | |
| Keyword(1) | Grover's Algorithm |
| Keyword(2) | Secret-Key Cryptosystem |
| Keyword(3) | Secret Key Search |
| Keyword(4) | NMR Computer |
| Keyword(5) | Bulk Quantum Turing Machine |
| 1st Author's Name | Kazuo OHTA |
| 1st Author's Affiliation | Department of Information and Communication Engineering, The University of Electro- Communications, Faculty of Engineering() |
| 2nd Author's Name | Tetsuro NISHINO |
| 2nd Author's Affiliation | Department of Information and Communication Engineering, The University of Electro- Communications, Faculty of Engineering |
| 3rd Author's Name | Kazumaro AOKI |
| 3rd Author's Affiliation | NTT Communications |
| Date | 2002/1/23 |
| Paper # | COMP2001-74 |
| Volume (vol) | vol.101 |
| Number (no) | 630 |
| Page | pp.pp.- |
| #Pages | 7 |
| Date of Issue | |