JP4570626B2 - 再生可能なセッションキーを生成するためのシステムおよび方法 - Google Patents
再生可能なセッションキーを生成するためのシステムおよび方法 Download PDFInfo
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- JP4570626B2 JP4570626B2 JP2006545858A JP2006545858A JP4570626B2 JP 4570626 B2 JP4570626 B2 JP 4570626B2 JP 2006545858 A JP2006545858 A JP 2006545858A JP 2006545858 A JP2006545858 A JP 2006545858A JP 4570626 B2 JP4570626 B2 JP 4570626B2
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0816—Key establishment, i.e. cryptographic processes or cryptographic protocols whereby a shared secret becomes available to two or more parties, for subsequent use
- H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
- H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
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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
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
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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
- H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
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- 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
- H04L2209/80—Wireless
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- Theoretical Computer Science (AREA)
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Description
Claims (18)
- 遠隔にある通信機器へセッション中に送信するためにデータ項目内のデータを暗号化するための再生可能な固有のセッションキーを、データ処理機器のプロセッサを用いて生成する方法であって、該プロセッサは、該データ項目が選択されたバッチサイズを超過する場合、該プロセッサに結合された送信器を介して該セッション中に送信される複数のデータバッチへと該データ項目を分離し、該プロセッサは、該複数のデータバッチの各々を同一のセッションキーを用いて暗号化し、
該方法は、
a.該プロセッサが、該データ処理機器によってアドレス可能な少なくとも1つのメモリ内に該データ項目を格納するステップと、
b.該複数のデータバッチの各々に対して、該プロセッサが、該データ項目の全体または該データ項目の一部分に対して決定アルゴリズムを反復的に適用することにより、該データ項目に関連する該セッションキーとして使用するための、該データ項目のハッシュを生成するステップと
を包含する、方法。 - 前記決定アルゴリズムが、ハッシュアルゴリズムを含む、請求項1に記載の方法。
- 前記決定アルゴリズムが、鍵導出関数を含む、請求項1に記載の方法。
- 前記ステップaの後に、前記プロセッサが、前記データ項目の前記一部分を追加のデータと連結するさらなるステップを包含し、
前記ステップb.において、該プロセッサは、該データ項目および追加のデータの連結された部分を含め、該データ項目の全体または該データ項目の一部分に対して決定アルゴリズムを適用することにより、該データ項目のハッシュを生成する、請求項1に記載の方法。 - 前記追加のデータが、前記データ項目外にあるソースからのものである、請求項4に記載の方法。
- c.前記プロセッサが、公開鍵を用いて前記セッションキーを暗号化することにより、暗号化されたセッションキーを生成するさらなるステップを包含する、請求項1に記載の方法。
- 遠隔にある通信機器へセッション中に送信するためにデータ項目内のデータを暗号化するための再生可能な固有のセッションキーを生成するシステムであって、該データ項目が選択されたバッチサイズを超過する場合、複数のデータバッチが、該セッション中に送信され、同一のセッションキーを用いて暗号化され、該システムは、該データ項目を格納するための少なくとも1つのメモリと通信するデータ処理機器と、該複数のデータバッチの各々に対して、該データ項目の全体または該データ項目の一部分に対して決定アルゴリズムを反復的に適用することにより、該データ項目に関連する該セッションキーとして使用するための、該データ項目のハッシュを生成するプロセッサとを備える、システム。
- 前記決定アルゴリズムが、ハッシュアルゴリズムを含む、請求項7に記載のシステム。
- 前記決定アルゴリズムが、鍵導出関数を含む、請求項7に記載のシステム。
- 前記データ項目の前記一部分は、追加のデータと連結され、
前記決定アルゴリズムは、該データ項目および追加のデータの連結された部分を含め、該データ項目の全体または該データ項目の一部分に対して適用されて、該データ項目のハッシュを生成する、請求項7に記載のシステム。 - 前記追加のデータが、前記データ項目外にあるソースからのものである、請求項10に記載のシステム。
- 前記プロセッサが、さらに、公開鍵を用いて前記セッションキーを暗号化することにより、暗号化されたセッションキーを生成するために用いられる、請求項7に記載のシステム。
- コンピュータプログラムコードを格納しているコンピュータ使用可能な媒体であって、該コンピュータプログラムコードは、実行されたときに、プロセッサに、
a.メッセージデータを暗号化するための再生可能な固有のセッションキーを生成することと、
b.該複数のデータバッチの各々に対して、少なくとも1つのメモリから該データ項目を読み出すことと、
c.該データ項目の全体または該データ項目の一部分に対して決定アルゴリズムを反復的に適用することにより、該データ項目に関連する該セッションキーとして使用するための、該データ項目のハッシュを生成することと
を実行させる、コンピュータ使用可能な媒体。 - 前記コンピュータプログラムコードが前記プロセッサに前記データ項目の全体または該データ項目の前記一部分に適用させる前記決定アルゴリズムが、ハッシュアルゴリズムを含む、請求項13に記載のコンピュータ使用可能な媒体。
- 前記コンピュータプログラムコードが前記プロセッサに前記データ項目の全体または該データ項目の前記一部分に適用させる前記決定アルゴリズムが、鍵導出関数を含む、請求項13に記載のコンピュータ使用可能な媒体。
- 前記コンピュータプログラムコードは、前記プロセッサに、前記データ項目の前記一部分を追加のデータと連結させ、該プログラムコードが、該プロセッサに、該データ項目および追加のデータの連結された部分を含め、該データ項目の全体または該データ項目の一部分に該決定アルゴリズムを適用することにより、該データ項目のハッシュを生成させる前に、該連結させることは実行される、請求項13に記載のコンピュータ使用可能な媒体。
- 前記追加のデータが、前記データ項目外にあるソースからのものである、請求項16に記載のコンピュータ使用可能な媒体。
- 前記コンピュータプログラムコードは、前記プロセッサに、公開鍵を用いて前記セッションキーを暗号化することにより、暗号化されたセッションキーを生成させる、請求項13に記載のコンピュータ使用可能な媒体。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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US56761104P | 2004-05-03 | 2004-05-03 | |
PCT/CA2004/002043 WO2005107140A1 (en) | 2004-05-03 | 2004-11-26 | System and method for generating reproducible session keys |
Publications (2)
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JP2007521772A JP2007521772A (ja) | 2007-08-02 |
JP4570626B2 true JP4570626B2 (ja) | 2010-10-27 |
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JP2006545858A Active JP4570626B2 (ja) | 2004-05-03 | 2004-11-26 | 再生可能なセッションキーを生成するためのシステムおよび方法 |
Country Status (11)
Country | Link |
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US (1) | US7929702B2 (ja) |
EP (1) | EP1741224B1 (ja) |
JP (1) | JP4570626B2 (ja) |
KR (1) | KR100734836B1 (ja) |
CN (1) | CN1871809B (ja) |
AT (1) | ATE417428T1 (ja) |
AU (1) | AU2004319170B2 (ja) |
BR (1) | BRPI0418366B1 (ja) |
CA (1) | CA2540720C (ja) |
DE (1) | DE602004018395D1 (ja) |
WO (1) | WO2005107140A1 (ja) |
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US20050254658A1 (en) | 2005-11-17 |
CN1871809B (zh) | 2011-04-06 |
DE602004018395D1 (de) | 2009-01-22 |
EP1741224A1 (en) | 2007-01-10 |
KR20060086969A (ko) | 2006-08-01 |
AU2004319170A1 (en) | 2005-11-10 |
CN1871809A (zh) | 2006-11-29 |
US7929702B2 (en) | 2011-04-19 |
KR100734836B1 (ko) | 2007-07-06 |
CA2540720A1 (en) | 2005-11-10 |
BRPI0418366A (pt) | 2007-05-15 |
CA2540720C (en) | 2010-08-10 |
ATE417428T1 (de) | 2008-12-15 |
BRPI0418366B1 (pt) | 2018-04-10 |
WO2005107140A8 (en) | 2005-12-29 |
AU2004319170B2 (en) | 2008-05-01 |
EP1741224B1 (en) | 2008-12-10 |
JP2007521772A (ja) | 2007-08-02 |
EP1741224A4 (en) | 2007-08-01 |
WO2005107140A1 (en) | 2005-11-10 |
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