JP4954941B2 - 引き起こされた非位取り誤りによる暗号化 - Google Patents
引き起こされた非位取り誤りによる暗号化 Download PDFInfo
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- JP4954941B2 JP4954941B2 JP2008133448A JP2008133448A JP4954941B2 JP 4954941 B2 JP4954941 B2 JP 4954941B2 JP 2008133448 A JP2008133448 A JP 2008133448A JP 2008133448 A JP2008133448 A JP 2008133448A JP 4954941 B2 JP4954941 B2 JP 4954941B2
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- 238000000034 method Methods 0.000 claims abstract description 77
- 230000008569 process Effects 0.000 claims abstract description 5
- 230000001360 synchronised effect Effects 0.000 claims abstract description 4
- 238000012546 transfer Methods 0.000 claims description 9
- 230000001131 transforming effect Effects 0.000 claims description 2
- 230000001939 inductive effect Effects 0.000 abstract 3
- 238000010586 diagram Methods 0.000 description 15
- 230000009471 action Effects 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 9
- 230000008901 benefit Effects 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000009466 transformation Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000000739 chaotic effect Effects 0.000 description 2
- 238000013507 mapping Methods 0.000 description 2
- 230000000873 masking effect Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
- H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L2209/00—Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
- H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Error Detection And Correction (AREA)
- Storage Device Security (AREA)
Description
F.PourbigharazおよびH.M.Yassine、Modulo−Free Architecture for Binary to Residue Transformation with respect to {2m−1,2m,2m+1} Moduli Set、IEEE International Symposium on Circuits and Systems、1994年5月30日〜6月2日、317〜320頁、Volume 2、London、England、UK
R={Vbbs modulo m0,Vbbs modulo m1,Vbbs modulo m2} (1)
ここで、Rは、データブロック内のデータに対する剰余値の3つ組である。Vbbsは、英語の文字を表す2進ビット列の値である。m0、m1、m2は、法である。Vbbsおよびm0、m1、m2に関して上で挙げられた値を式(1)に代入することによって、第1のデータブロック内のデータに対する剰余値は、R={9 modulo 7=2,9 modulo 8=1,9 modulo 9=0}のように計算されることができ、2進ビット列の{010 001 000}を有する。
102 データブロックフォーマッタ
104 剰余数系(RNS)エンコーダ
106 閉リング算術演算器
108 データフォーマッタ
110 数列生成器
112 状態シンクロナイザ
116 逆データフォーマッタ
118 閉リング算術演算器
120 数列生成器
122 状態シンクロナイザ
124 中国の剰余定理(CRT)プロセッサ
150 暗号化エンジン
160 暗号解除エンジン
Claims (10)
- データを暗号化するための方法であって、
データブロックフォーマッタにより、位取り記数法で表現されたデータを長さがNビットの複数のデータブロック内にフォーマットするステップと、
エンコーダにより、前記複数のデータブロック内の前記データを剰余数系表現に変換するステップと、
第1の数列生成器により、第1の誤り生成系列を生成するステップと、
第1の閉リング算術演算器により、前記変換ステップの後、前記第1の誤り生成系列を使用して少なくとも1つの剰余にガロア演算を使用する算術演算を施すことによって、前記データブロックで誤りを引き起こすステップと、を含む方法。 - 誤りを引き起こす前記ステップが、前記剰余数系で生成された複数の剰余値の少なくとも1つに既知の誤りを導入するステップを含む、請求項1に記載の方法。
- 誤りを引き起こす前記ステップが、前記第1の誤り生成系列に基づいて、前記剰余数系において生成された前記剰余値に対して算術演算を実行するステップをさらに含む、請求項2に記載の方法。
- 前記誤りを引き起こした後、データフォーマッタにより、前記データブロックを位取り記数法に変形するステップをさらに含む、請求項1に記載の方法。
- 前記第1の誤り生成系列は位取り記数法で生成される、請求項1に記載の方法。
- 前記第1の誤り生成系列は前記剰余数系で生成される、請求項1に記載の方法。
- 前記引き起こすステップが、選択された剰余だけで誤りを引き起こすステップをさらに含む、請求項1に記載の方法。
- 前記選択された剰余が、時間につれて別のものに変更される、請求項7に記載の方法。
- 前記引き起こすステップの後、データフォーマッタにより、前記データを保存または転送のための位取り形式にフォーマットするステップをさらに含む、請求項1に記載の方法。
- 暗号解除エンジンにより、前記誤りを引き起こした後の前記データブロックを受け取るステップと、
第2の数列生成器により、前記第1の誤り生成系列と同期させられた、前記第1の誤り生成系列と同一の第2の誤り生成系列を生成するステップと、
第2の閉リング算術演算器により、前記誤りを引き起こすステップで使用されたプロセスの逆算術である演算を使用して、前記データブロック内の前記誤りを訂正するステップと、をさらに含む、請求項1に記載の方法。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US11/751,875 | 2007-05-22 | ||
| US11/751,875 US8611530B2 (en) | 2007-05-22 | 2007-05-22 | Encryption via induced unweighted errors |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2008293018A JP2008293018A (ja) | 2008-12-04 |
| JP4954941B2 true JP4954941B2 (ja) | 2012-06-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2008133448A Expired - Fee Related JP4954941B2 (ja) | 2007-05-22 | 2008-05-21 | 引き起こされた非位取り誤りによる暗号化 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8611530B2 (ja) |
| EP (1) | EP1995905B1 (ja) |
| JP (1) | JP4954941B2 (ja) |
| CA (1) | CA2631925C (ja) |
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| CA2631925C (en) | 2013-03-19 |
| EP1995905A3 (en) | 2014-03-05 |
| EP1995905A2 (en) | 2008-11-26 |
| CA2631925A1 (en) | 2008-11-22 |
| EP1995905B1 (en) | 2021-01-13 |
| US20080294956A1 (en) | 2008-11-27 |
| JP2008293018A (ja) | 2008-12-04 |
| US8611530B2 (en) | 2013-12-17 |
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