JP4999751B2 - データを共有する手法 - Google Patents
データを共有する手法 Download PDFInfo
- Publication number
- JP4999751B2 JP4999751B2 JP2008086837A JP2008086837A JP4999751B2 JP 4999751 B2 JP4999751 B2 JP 4999751B2 JP 2008086837 A JP2008086837 A JP 2008086837A JP 2008086837 A JP2008086837 A JP 2008086837A JP 4999751 B2 JP4999751 B2 JP 4999751B2
- Authority
- JP
- Japan
- Prior art keywords
- token
- data
- identifier
- encryption key
- shared
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- 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)
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F21/60—Protecting data
- G06F21/62—Protecting access to data via a platform, e.g. using keys or access control rules
- G06F21/6218—Protecting access to data via a platform, e.g. using keys or access control rules to a system of files or objects, e.g. local or distributed file system or database
- G06F21/6245—Protecting personal data, e.g. for financial or medical purposes
- G06F21/6254—Protecting personal data, e.g. for financial or medical purposes by anonymising data, e.g. decorrelating personal data from the owner's identification
-
- 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
- H04L9/14—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using a plurality of keys or algorithms
-
- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2221/00—Indexing scheme relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/21—Indexing scheme relating to G06F21/00 and subgroups addressing additional information or applications relating to security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
- G06F2221/2107—File encryption
-
- 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
- H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption
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- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Theoretical Computer Science (AREA)
- Bioethics (AREA)
- General Health & Medical Sciences (AREA)
- Health & Medical Sciences (AREA)
- Signal Processing (AREA)
- Computer Networks & Wireless Communication (AREA)
- Medical Informatics (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Software Systems (AREA)
- Computer Hardware Design (AREA)
- Databases & Information Systems (AREA)
- Storage Device Security (AREA)
Description
104 コンピュータ・システム
106 記憶場所
108 ディジタル・トークン
110 物理トークン
112 プリンタ
114 トークン読み取り器
116 トークン
Claims (10)
- 共有する対象のデータを記憶するよう構成されたメモリと、
前記メモリから共有する対象のデータにアクセスするために利用可能な識別子を生成し、
前記メモリから共有する対象のデータを暗号化するために利用可能である暗号鍵を生成し、
前記識別子及び前記暗号鍵を含む1つ又は複数のトークンの組を生成させるよう構成されたプロセッサとを備え、前記トークンの組に含まれる各トークンは、前記トークンの組の何れのトークンを用いても前記データにアクセス可能な形態で前記データを記憶することを可能にするデータ共有システム。 - 請求項1記載のシステムであって、前記プロセッサは、
前記識別子及び前記暗号鍵を前記トークンの組における第1のトークンから取得し、
共有する対象の第1のデータを識別する情報を受け取り、
前記第1のトークンから得られた前記暗号鍵を用いて前記第1のデータを暗号化して、暗号化された第1のデータを生成し、
前記暗号化された第1のデータが前記識別子を用いてアクセス可能であるように、前記暗号化された第1のデータを前記メモリに記憶するよう構成されたシステム。 - 請求項1記載のシステムであって、前記プロセッサは、
前記識別子及び前記暗号鍵を前記トークンの組におけるトークンから取得し、
前記暗号化された第1のデータを、前記トークンから得られた前記識別子を用いてアクセスし、
前記トークンから得られた前記暗号鍵を用いて前記暗号化された第1のデータを復号して、復号された第1のデータを生成し、
前記復号された第1のデータへのアクセスを可能にするよう構成されたシステム。 - 請求項1記載のシステムであって、前記トークンの組における少なくとも1つのトークンは、前記識別子及び前記暗号鍵をコード化した機械読み取り可能なコードを備えた物理トークンであるシステム。
- 請求項1記載のシステムであって、物理媒体上に前記トークンの組を印刷するよう構成されたプリンタを更に備え、前記物理媒体は、前記物理媒体上に印刷されたトークンを、前記物理媒体上に印刷された他のトークンと物理的に分離することを可能にするシステム。
- データ共有方法であって、
共有する対象のデータをメモリによって記憶する工程と、
前記メモリから共有する対象のデータにアクセスするために利用可能な識別子をプロセッサによって生成する工程と、
前記メモリから共有する対象のデータを暗号化するために利用可能である暗号鍵を前記プロセッサによって生成する工程と、
前記識別子及び前記暗号鍵を含む1つ又は複数のトークンの組を前記プロセッサによって生成する工程とを含み、前記トークンの組に含まれる各トークンは、前記トークンの組の何れのトークンを用いても前記データにアクセス可能な形態で前記データを記憶するデータ共有方法。 - 請求項6記載のデータ共有方法であって、
前記識別子及び前記暗号鍵を前記トークンの組における第1のトークンから前記プロセッサによって取得する工程と、
共有する対象の第1のデータを識別する情報を前記プロセッサによって受け取る工程と、
前記第1のトークンから得られた前記暗号鍵を用いて前記第1のデータを暗号化して、暗号化された第1のデータを前記プロセッサによって生成する工程と、
前記暗号化された第1のデータが前記識別子を用いてアクセス可能であるように、前記暗号化された第1のデータを前記メモリに前記プロセッサによって記憶する工程と
を更に含むデータ共有方法。 - 請求項6記載のデータ共有方法であって、
前記識別子及び前記暗号鍵を前記トークンの組におけるトークンから前記プロセッサによって取得する工程と、
前記暗号化された第1のデータを、前記トークンから得られた前記識別子を用いて前記プロセッサによってアクセスする工程と、
前記プロセッサにより、
前記トークンから得られた前記暗号鍵を用いて前記暗号化された第1のデータを復号して、復号された第1のデータを生成する工程と、
前記復号された第1のデータへのアクセスを前記プロセッサによって可能にする工程と
を更に含むデータ共有方法。 - 請求項6記載のデータ共有方法であって、前記トークンの組における少なくとも1つのトークンは、前記識別子及び前記暗号鍵をコード化した機械読み取り可能なコードを備えた物理トークンであるデータ共有方法。
- 請求項6記載のデータ共有方法であって、物理媒体上に前記トークンの組をプリンタによって印刷する工程を更に含み、前記物理媒体は、前記物理媒体上に印刷されたトークンを、前記物理媒体上に印刷された他のトークンと物理的に分離することを可能にするデータ共有方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/694,327 US8756673B2 (en) | 2007-03-30 | 2007-03-30 | Techniques for sharing data |
US11/694,327 | 2007-03-30 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2008257720A JP2008257720A (ja) | 2008-10-23 |
JP4999751B2 true JP4999751B2 (ja) | 2012-08-15 |
Family
ID=39627698
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2008086837A Expired - Fee Related JP4999751B2 (ja) | 2007-03-30 | 2008-03-28 | データを共有する手法 |
Country Status (3)
Country | Link |
---|---|
US (2) | US8756673B2 (ja) |
EP (1) | EP1975847B1 (ja) |
JP (1) | JP4999751B2 (ja) |
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2008
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EP1975847A1 (en) | 2008-10-01 |
US8756673B2 (en) | 2014-06-17 |
US9432182B2 (en) | 2016-08-30 |
US20080244721A1 (en) | 2008-10-02 |
EP1975847B1 (en) | 2015-09-30 |
US20150039888A1 (en) | 2015-02-05 |
JP2008257720A (ja) | 2008-10-23 |
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