JP2005500740A - Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法 - Google Patents

Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法 Download PDF

Info

Publication number
JP2005500740A
JP2005500740A JP2003521528A JP2003521528A JP2005500740A JP 2005500740 A JP2005500740 A JP 2005500740A JP 2003521528 A JP2003521528 A JP 2003521528A JP 2003521528 A JP2003521528 A JP 2003521528A JP 2005500740 A JP2005500740 A JP 2005500740A
Authority
JP
Japan
Prior art keywords
key
message
recipient
secret
sender
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.)
Pending
Application number
JP2003521528A
Other languages
English (en)
Japanese (ja)
Inventor
ボネ、ダン
フランクリン、マシュー
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Leland Stanford Junior University
Original Assignee
Leland Stanford Junior University
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Leland Stanford Junior University filed Critical Leland Stanford Junior University
Publication of JP2005500740A publication Critical patent/JP2005500740A/ja
Pending legal-status Critical Current

Links

Images

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
    • H04L9/0838—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these
    • H04L9/0847—Key agreement, i.e. key establishment technique in which a shared key is derived by parties as a function of information contributed by, or associated with, each of these involving identity based encryption [IBE] schemes
    • 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
    • H04L9/3066—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves
    • H04L9/3073—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving algebraic varieties, e.g. elliptic or hyper-elliptic curves involving pairings, e.g. identity based encryption [IBE], bilinear mappings or bilinear pairings, e.g. Weil or Tate pairing
    • 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
    • H04L2209/04—Masking or blinding
JP2003521528A 2001-08-13 2002-08-13 Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法 Pending JP2005500740A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US31194601P 2001-08-13 2001-08-13
PCT/US2002/027155 WO2003017559A2 (en) 2001-08-13 2002-08-13 Systems and methods for identity-based encryption and related cryptographic techniques

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP2011104479A Division JP2011151866A (ja) 2001-08-13 2011-05-09 Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法

Publications (1)

Publication Number Publication Date
JP2005500740A true JP2005500740A (ja) 2005-01-06

Family

ID=23209176

Family Applications (4)

Application Number Title Priority Date Filing Date
JP2003521528A Pending JP2005500740A (ja) 2001-08-13 2002-08-13 Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法
JP2011104479A Pending JP2011151866A (ja) 2001-08-13 2011-05-09 Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法
JP2011250508A Pending JP2012032843A (ja) 2001-08-13 2011-11-16 Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法
JP2015099791A Expired - Lifetime JP5933786B2 (ja) 2001-08-13 2015-05-15 Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法

Family Applications After (3)

Application Number Title Priority Date Filing Date
JP2011104479A Pending JP2011151866A (ja) 2001-08-13 2011-05-09 Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法
JP2011250508A Pending JP2012032843A (ja) 2001-08-13 2011-11-16 Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法
JP2015099791A Expired - Lifetime JP5933786B2 (ja) 2001-08-13 2015-05-15 Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法

Country Status (7)

Country Link
US (4) US7113594B2 (US20030081785A1-20030501-P00902.png)
EP (3) EP1425874B1 (US20030081785A1-20030501-P00902.png)
JP (4) JP2005500740A (US20030081785A1-20030501-P00902.png)
AT (1) ATE465571T1 (US20030081785A1-20030501-P00902.png)
AU (1) AU2002332671A1 (US20030081785A1-20030501-P00902.png)
DE (1) DE60236094D1 (US20030081785A1-20030501-P00902.png)
WO (1) WO2003017559A2 (US20030081785A1-20030501-P00902.png)

Cited By (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006221161A (ja) * 2005-02-08 2006-08-24 Microsoft Corp Ｃａｒｔｉｅｒ対形成の暗号化適用
JP2006254423A (ja) * 2005-03-07 2006-09-21 Microsoft Corp プライバシーのあるｉｄ認識のための方法およびシステム
JP2006524352A (ja) * 2003-04-23 2006-10-26 ヒューレット−パッカード デベロップメント カンパニー エル．ピー． バイオメトリクスに基づいたアイデンティティベースの暗号化方法および装置
JP2006319457A (ja) * 2005-05-10 2006-11-24 Ntt Data Corp 暗号化通信システム、秘密鍵発行装置、および、プログラム
WO2007063876A1 (ja) * 2005-12-01 2007-06-07 Nec Corporation 電子入札システムおよび電子入札方法
JP2008003836A (ja) * 2006-06-22 2008-01-10 Nec Corp 判定システム、判定方法、判定装置およびプログラム
JP2008054315A (ja) * 2006-08-22 2008-03-06 Ntt Data Corp 暗号文復号権限委譲システム
JP2008152737A (ja) * 2006-12-20 2008-07-03 Nippon Telegr & Teleph Corp <Ntt> サービス提供サーバ、認証サーバ、および認証システム
JP2008527866A (ja) * 2005-01-14 2008-07-24 ベイジン イー‐ヘンシェン オーセンティケイション テクノロジーズ カンパニー リミテッド 識別情報に基づく暗号鍵方法及びデバイス
JP2009130447A (ja) * 2007-11-20 2009-06-11 Nippon Telegr & Teleph Corp <Ntt> 行動証明書発行方法、行動証明書発行装置、行動証明書発行プログラムおよび行動証明書発行・検証システム
JPWO2007080633A1 (ja) * 2006-01-11 2009-06-11 三菱電機株式会社 楕円曲線暗号パラメータ生成装置及び楕円曲線暗号演算装置及び楕円曲線暗号パラメータ生成プログラム及び楕円曲線暗号演算プログラム
JP2009201090A (ja) * 2007-12-11 2009-09-03 Sony Corp 鍵生成装置、暗号化装置、受信装置、鍵生成方法、暗号化方法、鍵処理方法およびプログラム
JP2009532970A (ja) * 2006-04-03 2009-09-10 トレンド・マイクロ・（エンクリプション）・リミテッド 電子データ通信システム
JP2009296209A (ja) * 2008-06-04 2009-12-17 Nippon Telegr & Teleph Corp <Ntt> 鍵配送方法、鍵配送システム、クライアント装置、鍵サーバ装置、それらのプログラム
JP2010004288A (ja) * 2008-06-19 2010-01-07 Nippon Telegr & Teleph Corp <Ntt> 秘密情報送信システム、秘密情報送信方法、秘密情報管理サーバ、暗号装置、秘密情報送信プログラム
JP2010081188A (ja) * 2008-09-25 2010-04-08 Kddi Corp 無線通信チャネルの設定方法、該方法のための仲介装置及びプログラム
JP2010117384A (ja) * 2008-11-11 2010-05-27 Sony Corp 情報処理装置、情報処理方法およびプログラム
JP2010154193A (ja) * 2008-12-25 2010-07-08 Nippon Telegr & Teleph Corp <Ntt> 階層型ｉｄベース暗号化装置及び復号化装置、それらの方法、プログラム及び記録媒体
JP2010161523A (ja) * 2009-01-07 2010-07-22 Nippon Telegr & Teleph Corp <Ntt> 鍵生成装置、暗号化装置、復号化装置、暗号化システム、鍵生成方法、暗号化方法、復号化方法、プログラム、および記録媒体
JP2010164796A (ja) * 2009-01-16 2010-07-29 Nippon Telegr & Teleph Corp <Ntt> 変換演算装置、その方法、プログラム及び記録媒体
JP2010537541A (ja) * 2007-08-20 2010-12-02 サムスン エレクトロニクス カンパニー リミテッド ホームネットワークでデバイス間で秘密情報を共有する方法及びそのための装置
JP2011124853A (ja) * 2009-12-11 2011-06-23 Ntt Data Corp 暗号文復号権限委譲システム、暗号文復号権限委譲方法、暗号文変換装置、復号権限所持者用装置および暗号文変換プログラム
JP2011528876A (ja) * 2008-07-23 2011-11-24 西安西▲電▼捷通▲無▼▲綫▼▲網▼絡通信股▲分▼有限公司 電子タグに適するデータセキュリティアクセス方法
JP2012032843A (ja) * 2001-08-13 2012-02-16 Univ Leland Stanford Jr Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法
JP2012073638A (ja) * 2005-01-21 2012-04-12 Certicom Corp 楕円曲線乱数生成
US8180047B2 (en) 2006-01-13 2012-05-15 Microsoft Corporation Trapdoor pairings
JP2012518330A (ja) * 2009-02-16 2012-08-09 マイクロソフト コーポレーション 高信頼なクラウド・コンピューティングおよびクラウド・サービスのフレームワーク
JP2012518329A (ja) * 2009-02-16 2012-08-09 マイクロソフト コーポレーション 信頼済みクラウドコンピューティングおよびサービスに関するフレームワーク
JP2012154977A (ja) * 2011-01-21 2012-08-16 Nippon Telegr & Teleph Corp <Ntt> 関数暗号を用いた時限暗号システム、時限暗号方法、装置、プログラム
JP2013503564A (ja) * 2009-08-28 2013-01-31 アルカテル−ルーセント 会議システムにおけるセキュリティで保護された鍵管理
JP2013503565A (ja) * 2009-08-28 2013-01-31 アルカテル−ルーセント マルチメディア通信システムにおけるセキュリティで保護された鍵管理
US8615668B2 (en) 2010-01-15 2013-12-24 Mitsubishi Electric Corporation Confidential search system and cryptographic processing system
JP2014026238A (ja) * 2012-07-30 2014-02-06 Kanazawa Univ 公開鍵暗号システム、送信装置、受信装置、公開鍵暗号方法、プログラム、及び記録媒体
JP2014514889A (ja) * 2011-05-11 2014-06-19 アルカテル−ルーセント 公開鍵を利用した鍵管理のためのセキュリティアソシエーションの発見
JP2018523360A (ja) * 2015-05-29 2018-08-16 ファーウェイ インターナショナル プライベート リミテッドＨｕａｗｅｉ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｐｔｅ． Ｌｔｄ． 安全なｓｍｓ通信のための方法及びシステム
JP2019041355A (ja) * 2017-08-29 2019-03-14 Kddi株式会社 暗号化装置、復号装置、暗号化システム、暗号化方法及び暗号化プログラム
JP2019518642A (ja) * 2016-04-14 2019-07-04 ロンバス システムズ グループ， インコーポレイテッドＲｈｏｍｂｕｓ Ｓｙｓｔｅｍｓ Ｇｒｏｕｐ， Ｉｎｃ． 無人航空機の完全性を検証するためのシステム
JP2019149833A (ja) * 2011-09-29 2019-09-05 アマゾン テクノロジーズ インコーポレイテッド パラメータベースのキー導出
US10423301B2 (en) 2008-08-11 2019-09-24 Microsoft Technology Licensing, Llc Sections of a presentation having user-definable properties
JP2020523813A (ja) * 2017-06-07 2020-08-06 エヌチェーン ホールディングス リミテッドＮｃｈａｉｎ Ｈｏｌｄｉｎｇｓ Ｌｉｍｉｔｅｄ ブロックチェーンネットワークのためのクレデンシャル生成及び分配方法
WO2020241817A1 (ja) * 2019-05-29 2020-12-03 株式会社ｂｉｔＦｌｙｅｒ Ｂｌｏｃｋｃｈａｉｎ 公開鍵の信頼性を証明するための装置、方法及びそのためのプログラム
US11184155B2 (en) 2016-08-09 2021-11-23 Amazon Technologies, Inc. Cryptographic key management for imported cryptographic keys
US11356457B2 (en) 2011-09-29 2022-06-07 Amazon Technologies, Inc. Parameter based key derivation
WO2022259494A1 (ja) * 2021-06-10 2022-12-15 日本電信電話株式会社 通信システム、ユーザ端末、通信方法および通信プログラム
WO2022259495A1 (ja) * 2021-06-10 2022-12-15 日本電信電話株式会社 通信システム、ユーザ端末、通信方法および通信プログラム
JP7338405B2 (ja) 2019-10-31 2023-09-05 凸版印刷株式会社 決済認証システム及び決済認証方法

Families Citing this family (364)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10114157A1 (de) * 2001-03-22 2002-09-26 Deutsche Telekom Ag Verfahren zur rechnergestützten Erzeugung von öffentlichen Schlüsseln zur Verschlüsselung von Nachrichten und Vorrichtung zur Durchführung des Verfahrens
US7577250B2 (en) 2004-08-12 2009-08-18 Cmla, Llc Key derivation functions to enhance security
US8077861B2 (en) 2004-08-12 2011-12-13 Cmla, Llc Permutation data transform to enhance security
US7564970B2 (en) * 2004-08-12 2009-07-21 Cmla, Llc Exponential data transform to enhance security
JP3901484B2 (ja) * 2001-10-05 2007-04-04 株式会社ジェイテクト 電動パワーステアリング装置
GB0124681D0 (en) * 2001-10-15 2001-12-05 Hewlett Packard Co Method and apparatus for encrypting data
US7921450B1 (en) * 2001-12-12 2011-04-05 Klimenty Vainstein Security system using indirect key generation from access rules and methods therefor
US8065713B1 (en) 2001-12-12 2011-11-22 Klimenty Vainstein System and method for providing multi-location access management to secured items
US7921288B1 (en) 2001-12-12 2011-04-05 Hildebrand Hal S System and method for providing different levels of key security for controlling access to secured items
US7921284B1 (en) 2001-12-12 2011-04-05 Gary Mark Kinghorn Method and system for protecting electronic data in enterprise environment
US10033700B2 (en) 2001-12-12 2018-07-24 Intellectual Ventures I Llc Dynamic evaluation of access rights
US10360545B2 (en) 2001-12-12 2019-07-23 Guardian Data Storage, Llc Method and apparatus for accessing secured electronic data off-line
US7260555B2 (en) 2001-12-12 2007-08-21 Guardian Data Storage, Llc Method and architecture for providing pervasive security to digital assets
US7565683B1 (en) 2001-12-12 2009-07-21 Weiqing Huang Method and system for implementing changes to security policies in a distributed security system
US8006280B1 (en) 2001-12-12 2011-08-23 Hildebrand Hal S Security system for generating keys from access rules in a decentralized manner and methods therefor
US7930756B1 (en) 2001-12-12 2011-04-19 Crocker Steven Toye Multi-level cryptographic transformations for securing digital assets
US7380120B1 (en) 2001-12-12 2008-05-27 Guardian Data Storage, Llc Secured data format for access control
US7178033B1 (en) 2001-12-12 2007-02-13 Pss Systems, Inc. Method and apparatus for securing digital assets
US7950066B1 (en) 2001-12-21 2011-05-24 Guardian Data Storage, Llc Method and system for restricting use of a clipboard application
US8176334B2 (en) 2002-09-30 2012-05-08 Guardian Data Storage, Llc Document security system that permits external users to gain access to secured files
US7349538B2 (en) * 2002-03-21 2008-03-25 Ntt Docomo Inc. Hierarchical identity-based encryption and signature schemes
CN1633776A (zh) * 2002-04-15 2005-06-29 美国多科摩通讯研究所股份有限公司 利用双线性映射的签名方案
GB0208858D0 (en) * 2002-04-18 2002-05-29 Hewlett Packard Co Method and apparatus for encrypting/decrypting data
GB2390703A (en) * 2002-07-02 2004-01-14 Ascent Group Ltd Storage and authentication of data transactions
GB2401763B (en) * 2002-07-05 2005-08-10 Hewlett Packard Development Co Trusted authority for identifer-based cryptography
GB0215590D0 (en) * 2002-07-05 2002-08-14 Hewlett Packard Co Method and apparatus for generating a cryptographic key
GB0215524D0 (en) * 2002-07-05 2002-08-14 Hewlett Packard Co Method and apparatus for generating a cryptographic key
US20050089173A1 (en) * 2002-07-05 2005-04-28 Harrison Keith A. Trusted authority for identifier-based cryptography
SG145524A1 (en) * 2002-08-07 2008-09-29 Mobilastic Technologies Pte Lt Secure transfer of digital tokens
US20040044734A1 (en) * 2002-08-27 2004-03-04 Mark Beck Enhanced services electronic mail
WO2004021638A1 (en) * 2002-08-28 2004-03-11 Docomo Communications Laboratories Usa, Inc. Certificate-based encryption and public key infrastructure
KR100489327B1 (ko) * 2002-09-18 2005-05-12 학교법인 한국정보통신학원 겹선형 디피-헬만 문제에 기반한 네트워크 환경에서의개인 식별 방법
US7486795B2 (en) * 2002-09-20 2009-02-03 University Of Maryland Method and apparatus for key management in distributed sensor networks
US7412059B1 (en) 2002-11-27 2008-08-12 Voltage Security, Inc. Public-key encryption system
KR20030008183A (ko) * 2002-12-24 2003-01-24 학교법인 한국정보통신학원 겹선형쌍을 이용한 개인식별정보 기반의 원형서명 방법
KR20030008182A (ko) * 2002-12-24 2003-01-24 학교법인 한국정보통신학원 겹선형쌍을 이용한 개인식별정보 기반의 은닉서명 방법
ATE444617T1 (de) * 2003-01-07 2009-10-15 Qualcomm Inc System, vorrichtung und verfahren zum auswechseln eines kryptographischen schlüssels
US7003117B2 (en) * 2003-02-05 2006-02-21 Voltage Security, Inc. Identity-based encryption system for secure data distribution
US7480384B2 (en) * 2003-02-10 2009-01-20 International Business Machines Corporation Method for distributing and authenticating public keys using random numbers and Diffie-Hellman public keys
US8108678B1 (en) * 2003-02-10 2012-01-31 Voltage Security, Inc. Identity-based signcryption system
US7783044B2 (en) * 2003-02-20 2010-08-24 Proofpoint, Inc. System for on-line and off-line decryption
GB2398713B (en) * 2003-02-22 2005-11-30 Hewlett Packard Development Co Limiting service provision to group members
US7571321B2 (en) * 2003-03-14 2009-08-04 Voltage Security, Inc. Identity-based-encryption messaging system
KR100507809B1 (ko) * 2003-03-19 2005-08-17 학교법인 한국정보통신학원 네트워크상에서의 겹선형쌍 디피-헬만 문제를 이용한 익명핑거프린팅 방법
US7921292B1 (en) 2003-04-04 2011-04-05 Voltage Security, Inc. Secure messaging systems
GB2400699B (en) * 2003-04-17 2006-07-05 Hewlett Packard Development Co Security data provision method and apparatus and data recovery method and system
GB2401012B (en) * 2003-04-23 2005-07-06 Hewlett Packard Development Co Cryptographic method and apparatus
GB2401006A (en) * 2003-04-23 2004-10-27 Hewlett Packard Development Co Cryptographic method and apparatus
GB0309182D0 (en) * 2003-04-23 2003-05-28 Hewlett Packard Development Co Security method and apparatus using biometric data
GB2401013B (en) * 2003-04-23 2005-09-28 Hewlett Packard Development Co Cryptographic method and apparatus
GB0309161D0 (en) * 2003-04-23 2003-05-28 Hewlett Packard Development Co Cryptographic method and apparatus
DE602004001273T2 (de) * 2003-04-23 2007-05-31 Hewlett-Packard Development Co., L.P., Houston Verfahren und Vorrichtung zur Identifiezierungsbasierten Verschlüsselung
AU2004201807A1 (en) * 2003-05-09 2004-11-25 Nor Azman Bin Abu Method and apparatus for the generation of public key based on a user-defined ID in a cryptosystem
US8707034B1 (en) 2003-05-30 2014-04-22 Intellectual Ventures I Llc Method and system for using remote headers to secure electronic files
GB0313663D0 (en) * 2003-06-13 2003-07-16 Hewlett Packard Development Co Mediated rsa cryptographic method and system
GB0313666D0 (en) 2003-06-13 2003-07-16 Hewlett Packard Development Co RSA cryptographic method and system
US7017181B2 (en) * 2003-06-25 2006-03-21 Voltage Security, Inc. Identity-based-encryption messaging system with public parameter host servers
US7580521B1 (en) 2003-06-25 2009-08-25 Voltage Security, Inc. Identity-based-encryption system with hidden public key attributes
DE10330089B4 (de) * 2003-07-03 2014-02-27 Bt Ignite Gmbh & Co. Verfahren und Vorrichtung zum Übermitteln von Entschlüsselungscodes für frei übertragene, verschlüsselte Programminhalte an eindeutig identifizierbare Empfänger
KR20030062401A (ko) * 2003-07-04 2003-07-25 학교법인 한국정보통신학원 겹선형쌍을 이용한 개인식별정보 기반의 은닉서명 장치 및방법
US7298839B2 (en) * 2003-07-25 2007-11-20 Microsoft Corporation Squared Weil and Tate pairing techniques for use with elliptic curves
US7769167B2 (en) * 2003-07-25 2010-08-03 Microsoft Corporation Weil and Tate pairing techniques using parabolas
US7440569B2 (en) * 2003-07-28 2008-10-21 Microsoft Corporation Tate pairing techniques for use with hyperelliptic curves
US7266847B2 (en) * 2003-09-25 2007-09-04 Voltage Security, Inc. Secure message system with remote decryption service
EP1519530A1 (en) * 2003-09-29 2005-03-30 STMicroelectronics S.r.l. Method for establishing an encrypted communication by means of keys
US8127366B2 (en) 2003-09-30 2012-02-28 Guardian Data Storage, Llc Method and apparatus for transitioning between states of security policies used to secure electronic documents
US7703140B2 (en) 2003-09-30 2010-04-20 Guardian Data Storage, Llc Method and system for securing digital assets using process-driven security policies
US7788496B2 (en) * 2003-10-08 2010-08-31 Microsoft Corporation First computer process and second computer process proxy-executing code on behalf thereof
US7979911B2 (en) * 2003-10-08 2011-07-12 Microsoft Corporation First computer process and second computer process proxy-executing code from third computer process on behalf of first process
US8103592B2 (en) * 2003-10-08 2012-01-24 Microsoft Corporation First computer process and second computer process proxy-executing code on behalf of first process
US7596704B2 (en) * 2003-10-10 2009-09-29 Jing-Jang Hwang Partition and recovery of a verifiable digital secret
US7487537B2 (en) * 2003-10-14 2009-02-03 International Business Machines Corporation Method and apparatus for pervasive authentication domains
US7103911B2 (en) 2003-10-17 2006-09-05 Voltage Security, Inc. Identity-based-encryption system with district policy information
EP1687931B1 (en) 2003-10-28 2021-12-29 BlackBerry Limited Method and apparatus for verifiable generation of public keys
GB0325527D0 (en) * 2003-11-01 2003-12-03 Hewlett Packard Development Co Identifier-based signcryption
US20050135610A1 (en) * 2003-11-01 2005-06-23 Liqun Chen Identifier-based signcryption
US7499544B2 (en) * 2003-11-03 2009-03-03 Microsoft Corporation Use of isogenies for design of cryptosystems
US7523314B2 (en) 2003-12-22 2009-04-21 Voltage Security, Inc. Identity-based-encryption message management system
US20050187863A1 (en) * 2004-02-20 2005-08-25 Whinery Christopher S. Method and system for protecting real estate from fraudulent transactions
DE602005024118D1 (de) * 2004-03-30 2010-11-25 Univ Dublin City Verifikation von auf identität basierenden signaturen
US8050409B2 (en) * 2004-04-02 2011-11-01 University Of Cincinnati Threshold and identity-based key management and authentication for wireless ad hoc networks
US7646872B2 (en) 2004-04-02 2010-01-12 Research In Motion Limited Systems and methods to securely generate shared keys
US7590236B1 (en) * 2004-06-04 2009-09-15 Voltage Security, Inc. Identity-based-encryption system
GB2415112B (en) 2004-06-11 2007-04-25 Hewlett Packard Development Co Cryptographic method and apparatus
GB2415579B (en) 2004-06-23 2006-12-20 Hewlett Packard Development Co Cryptographic method and apparatus
KR100657265B1 (ko) 2004-06-23 2006-12-14 삼성전자주식회사 자기 규제 방법 및 이를 이용한 콘텐츠 송수신 방법
US20060013397A1 (en) * 2004-07-13 2006-01-19 International Business Machines Corporation Channel adapter managed trusted queue pairs
GB2416282B (en) 2004-07-15 2007-05-16 Hewlett Packard Development Co Identifier-based signcryption with two trusted authorities
US7920050B2 (en) * 2004-07-29 2011-04-05 Emc Corporation Proxy device for enhanced privacy in an RFID system
EP1621956B1 (en) * 2004-07-30 2017-05-31 Irdeto B.V. Method of providing rights data objects
NZ603822A (en) * 2004-08-12 2013-07-26 Cmla Llc Permutation data transform to enhance security
US7742596B2 (en) * 2004-08-24 2010-06-22 General Dynamics C4 Systems, Inc. Reliable elliptic curve cryptography computation
US7657037B2 (en) * 2004-09-20 2010-02-02 Pgp Corporation Apparatus and method for identity-based encryption within a conventional public-key infrastructure
JP4752313B2 (ja) * 2004-09-30 2011-08-17 ソニー株式会社 暗号処理演算方法、および暗号処理装置、並びにコンピュータ・プログラム
US20060078790A1 (en) * 2004-10-05 2006-04-13 Polyplus Battery Company Solid electrolytes based on lithium hafnium phosphate for active metal anode protection
KR100601706B1 (ko) * 2004-10-15 2006-07-18 삼성전자주식회사 Ｄｒｍ 시스템에 있어서 시스템 키를 공유하고 생성하는방법 및 장치
US7418100B2 (en) * 2004-10-20 2008-08-26 Cisco Technology, Inc. Enciphering method
GB2419787B (en) * 2004-10-28 2007-07-04 Hewlett Packard Development Co Method and apparatus for providing short-term private keys in public-key cryptographic systems
US7660987B2 (en) * 2004-10-29 2010-02-09 Baylis Stephen W Method of establishing a secure e-mail transmission link
US7370202B2 (en) * 2004-11-02 2008-05-06 Voltage Security, Inc. Security device for cryptographic communications
FR2877453A1 (fr) * 2004-11-04 2006-05-05 France Telecom Procede de delegation securisee de calcul d'une application bilineaire
US7844051B2 (en) * 2004-11-11 2010-11-30 Certicom Corp. Trapdoor one-way functions on elliptic curves and their application to shorter signatures and asymmetric encryption
WO2006051517A1 (en) * 2004-11-12 2006-05-18 Dublin City University Identity based encryption
JP4546231B2 (ja) * 2004-12-09 2010-09-15 株式会社日立製作所 Ｉｄベース署名及び暗号化システムおよび方法
GB2421097B (en) * 2004-12-10 2009-07-01 Hewlett Packard Development Co Methods, devices and computer programs for creating ciphertext, plaintext and a cryptographic key
US7639799B2 (en) * 2004-12-14 2009-12-29 Microsoft Corporation Cryptographically processing data based on a Cassels-Tate pairing
DE602005010039D1 (de) * 2004-12-23 2008-11-13 Hewlett Packard Development Co Verbesserungen in der Anwendung von bilinearen Abbildungen bei kryptographischen Anwendungen
JP4528114B2 (ja) * 2004-12-28 2010-08-18 日本電信電話株式会社 鍵生成装置、暗号化装置、検査装置、復号化装置並びに鍵生成プログラム、暗号化プログラム、検査プログラム、復号化プログラム
US8099598B1 (en) * 2005-01-03 2012-01-17 Gary Gang Liu Secure messaging system with automatic recipient enrollment
US7869593B2 (en) * 2005-01-07 2011-01-11 First Data Corporation Software for providing based on shared knowledge public keys having same private key
US20060159269A1 (en) * 2005-01-20 2006-07-20 Matsushita Electric Industrial Co., Ltd. Cryptographic system for resource starved CE device secure upgrade and re-configuration
US7860802B2 (en) * 2005-02-01 2010-12-28 Microsoft Corporation Flexible licensing architecture in content rights management systems
EP1851902A1 (en) 2005-02-25 2007-11-07 QUALCOMM Incorporated Small public-key based digital signatures for authentication
US7739500B2 (en) * 2005-03-07 2010-06-15 Microsoft Corporation Method and system for consistent recognition of ongoing digital relationships
US7702098B2 (en) * 2005-03-15 2010-04-20 Microsoft Corporation Elliptic curve point octupling for weighted projective coordinates
US7680268B2 (en) 2005-03-15 2010-03-16 Microsoft Corporation Elliptic curve point octupling using single instruction multiple data processing
US7657456B2 (en) * 2005-03-18 2010-02-02 Pitney Bowes Inc. Method and system for electronic voting using identity based encryption
US7634085B1 (en) * 2005-03-25 2009-12-15 Voltage Security, Inc. Identity-based-encryption system with partial attribute matching
US8285996B2 (en) 2005-03-30 2012-10-09 Dublin City University Verification of identity based signatures
US7570164B2 (en) * 2005-12-30 2009-08-04 Skyetek, Inc. System and method for implementing virtual RFID tags
US7659819B2 (en) 2005-04-21 2010-02-09 Skyetek, Inc. RFID reader operating system and associated architecture
US20070046431A1 (en) * 2005-08-31 2007-03-01 Skyetek, Inc. System and method for combining RFID tag memory
US20060238304A1 (en) * 2005-04-21 2006-10-26 Sean Loving System and method for adapting an FRID tag reader to its environment
US20060253415A1 (en) * 2005-04-21 2006-11-09 Sayan Chakraborty Data-defined communication device
US20060238302A1 (en) * 2005-04-21 2006-10-26 Sean Loving System and method for configuring an RFID reader
US20060238303A1 (en) * 2005-04-21 2006-10-26 Sean Loving Adaptable RFID reader
US20070046467A1 (en) * 2005-08-31 2007-03-01 Sayan Chakraborty System and method for RFID reader to reader communication
US20060238305A1 (en) * 2005-04-21 2006-10-26 Sean Loving Configurable RFID reader
US8091142B2 (en) * 2005-04-26 2012-01-03 Microsoft Corporation Supplementary trust model for software licensing/commercial digital distribution policy
KR100635280B1 (ko) * 2005-04-27 2006-10-19 삼성전자주식회사 전자 서명을 이용한 보안 방법
US7720221B2 (en) * 2005-05-20 2010-05-18 Certicom Corp. Privacy-enhanced e-passport authentication protocol
JP4723909B2 (ja) * 2005-05-27 2011-07-13 株式会社日立製作所 データ交換方法、データ交換管理装置およびデータ交換管理プログラム
US7649999B2 (en) * 2005-06-08 2010-01-19 Iris Anshel Method and apparatus for establishing a key agreement protocol
US8356175B2 (en) * 2005-06-29 2013-01-15 Intel Corporation Methods and apparatus to perform associated security protocol extensions
US8189788B2 (en) * 2005-07-15 2012-05-29 Tyfone, Inc. Hybrid symmetric/asymmetric cryptography with user authentication
US8477940B2 (en) * 2005-07-15 2013-07-02 Tyfone, Inc. Symmetric cryptography with user authentication
US7627760B2 (en) * 2005-07-21 2009-12-01 Microsoft Corporation Extended authenticated key exchange
JP2007036364A (ja) * 2005-07-22 2007-02-08 Nec Corp タイム装置、暗号化装置、復号化装置、暗号化／復号化システム
US7694141B2 (en) 2005-07-26 2010-04-06 Microsoft Corporation Extended authenticated key exchange with key confirmation
US8190895B2 (en) * 2005-08-18 2012-05-29 Microsoft Corporation Authenticated key exchange with derived ephemeral keys
US7908482B2 (en) * 2005-08-18 2011-03-15 Microsoft Corporation Key confirmed authenticated key exchange with derived ephemeral keys
FR2890201A1 (fr) * 2005-08-31 2007-03-02 Proton World Internatinal Nv Protection d'un contenu numerique sur un support physique
US20070206786A1 (en) * 2005-08-31 2007-09-06 Skyetek, Inc. Rfid security system
FR2892251A1 (fr) * 2005-10-14 2007-04-20 Gemplus Sa Procede cryptographique mettant en oeuvre un systeme de chiffrement base sur l'identite
US20070104323A1 (en) * 2005-11-04 2007-05-10 Pitney Bowes Incorporated Method and system for providing privacy to sender of a mail piece
US9165411B2 (en) * 2005-12-16 2015-10-20 Pitney Bowes Inc. Method and system for embedding mailer specified mailing instructions on a mail piece to automate mail processing
US20080022160A1 (en) * 2005-12-30 2008-01-24 Skyetek, Inc. Malware scanner for rfid tags
US20070206797A1 (en) * 2006-03-01 2007-09-06 Skyetek, Inc. Seamless rfid tag security system
US9137012B2 (en) * 2006-02-03 2015-09-15 Emc Corporation Wireless authentication methods and apparatus
US8094810B2 (en) * 2006-02-03 2012-01-10 Massachusetts Institute Of Technology Unidirectional proxy re-encryption
US8311214B2 (en) * 2006-04-24 2012-11-13 Motorola Mobility Llc Method for elliptic curve public key cryptographic validation
US9002018B2 (en) * 2006-05-09 2015-04-07 Sync Up Technologies Corporation Encryption key exchange system and method
US7434726B2 (en) * 2006-05-15 2008-10-14 Pitney Bowes Inc. Method and system for postdating of financial transactions
FR2901940B1 (fr) * 2006-05-31 2012-12-14 Oberthur Card Syst Sa Procede de generation d'une cle privee et procedes de chiffrement et de dechiffrement d'un message
WO2007138204A1 (fr) * 2006-05-31 2007-12-06 France Telecom Procede cryptographique a chiffrement et revocation integres, systeme, dispositif et programmes pour la mise en oeuvre du procede
US9769158B2 (en) * 2006-06-07 2017-09-19 Red Hat, Inc. Guided enrollment and login for token users
JP4868131B2 (ja) * 2006-06-15 2012-02-01 ネッツエスアイ東洋株式会社 電子割符照合システム
US8670564B1 (en) 2006-08-14 2014-03-11 Key Holdings, LLC Data encryption system and method
EP1890493A1 (fr) * 2006-08-17 2008-02-20 Nagracard S.A. Méthode de révocation de modules de sécurité utilisés pour sécuriser des messages diffusés
US20080065729A1 (en) * 2006-09-08 2008-03-13 Pitney Bowes Incorporated Method and system for service provider to be compensated for delivering e-mail messages while reducing amount of unsolicited e-mail messages
US7885406B2 (en) * 2006-10-10 2011-02-08 Microsoft Corporation Computing endomorphism rings of Abelian surfaces over finite fields
US8271788B2 (en) * 2006-10-17 2012-09-18 Trend Micro Incorporated Software registration system
US20080137859A1 (en) * 2006-12-06 2008-06-12 Ramanathan Jagadeesan Public key passing
CN101617351B (zh) * 2007-01-19 2011-06-22 三菱电机株式会社 密文生成装置、密码通信系统以及群参数生成装置
GB0705494D0 (en) * 2007-03-22 2007-05-02 Ibm A method and system for a subscription to a symmetric key
US7859411B2 (en) 2007-03-30 2010-12-28 Skyetek, Inc. RFID tagged item trajectory and location estimation system and method
US20080297326A1 (en) * 2007-03-30 2008-12-04 Skyetek, Inc. Low Cost RFID Tag Security And Privacy System And Method
US20080290995A1 (en) * 2007-03-30 2008-11-27 Skyetek, Inc. System and method for optimizing communication between an rfid reader and an rfid tag
US8669845B1 (en) 2007-03-30 2014-03-11 Vail Resorts, Inc. RFID skier monitoring systems and methods
US8705744B2 (en) * 2007-04-05 2014-04-22 Koninklijke Philips N.V. Wireless sensor network key distribution
WO2008122923A2 (en) * 2007-04-05 2008-10-16 International Business Machines Corporation System and method for distribution of credentials
JP2008301391A (ja) * 2007-06-04 2008-12-11 Murata Mach Ltd 放送用暗号システムと暗号通信方法、復号器及び復号プログラム
US8676715B2 (en) 2007-06-06 2014-03-18 Pitney Bowes Inc. System and method for authenticating indicia using identity-based signature scheme
US9847977B2 (en) 2007-06-29 2017-12-19 Microsoft Technology Licensing, Llc Confidential mail with tracking and authentication
US8631419B2 (en) * 2007-06-29 2014-01-14 Microsoft Corporation System and methods for disruption detection, management, and recovery
DE102007033845A1 (de) 2007-07-18 2009-01-22 Bernd Prof. Dr. Freisleben Verfahren und Vorrichtung für eine verschlüsselte digitale Sprachkommunikation
DE102007033848A1 (de) 2007-07-18 2009-01-22 Freisleben, Bernd, Prof. Dr. Verfahren und Vorrichtung zur Erzeugung von kryptographischen Schlüsseln zur Durchführung einer Schlüsseleinigung für eine sichere digitale Kommunikation in einem IP-Netzwerk
DE102007033846A1 (de) 2007-07-18 2009-01-22 Freisleben, Bernd, Prof. Dr. Verfahren und Vorrichtung zur Erzeugung von kryptographischen Schlüsseln zur Durchführung einer Schlüsseleinigung für eine sichere digitale Kommunikation
DE102007033847A1 (de) 2007-07-18 2009-01-22 Bernd Prof. Dr. Freisleben Verfahren und Vorrichtung zur kryptographischen Schlüsseleinigung für eine sichere digitale Kommunikation in Netzwerken
WO2009014735A2 (en) * 2007-07-23 2009-01-29 Motivepath, Inc. System, method and apparatus for secure multiparty located based services
US7890763B1 (en) * 2007-09-14 2011-02-15 The United States Of America As Represented By The Director, National Security Agency Method of identifying invalid digital signatures involving batch verification
US8700894B2 (en) * 2007-10-17 2014-04-15 Pitney Bowes Inc. Method and system for securing routing information of a communication using identity-based encryption scheme
US9094206B2 (en) * 2007-10-26 2015-07-28 Telcordia Technologies, Inc. Method and system for secure session establishment using identity-based encryption (VDTLS)
JP5286748B2 (ja) * 2007-11-09 2013-09-11 ソニー株式会社 情報処理装置、鍵設定方法、及びプログラム
CN101179380A (zh) * 2007-11-19 2008-05-14 上海交通大学 一种双向认证方法、系统及网络终端
KR20090052199A (ko) * 2007-11-20 2009-05-25 삼성전자주식회사 저장 장치, 상기 저장 장치를 이용하는 단말장치와 그 방법
US20090153290A1 (en) * 2007-12-14 2009-06-18 Farpointe Data, Inc., A California Corporation Secure interface for access control systems
US8806207B2 (en) * 2007-12-21 2014-08-12 Cocoon Data Holdings Limited System and method for securing data
CN101521569B (zh) * 2008-02-28 2013-04-24 华为技术有限公司 实现服务访问的方法、设备及系统
KR101484110B1 (ko) * 2008-02-29 2015-01-28 삼성전자주식회사 메모리 컨트롤러 및 그에 따른 메모리 장치
US8090108B2 (en) * 2008-04-15 2012-01-03 Adaptive Chips, Inc. Secure debug interface and memory of a media security circuit and method
US8045708B2 (en) * 2008-05-21 2011-10-25 Apple Inc. Discrete key generation method and apparatus
KR20160130512A (ko) * 2008-05-23 2016-11-11 코닌클리케 필립스 엔.브이. 데이터 아이템들에 대한 보안 액세스를 위한 데이터 아이템들의 아이덴티티-기반 암호화
US8259949B2 (en) 2008-05-27 2012-09-04 Intel Corporation Methods and apparatus for protecting digital content
US8656177B2 (en) * 2008-06-23 2014-02-18 Voltage Security, Inc. Identity-based-encryption system
US8761390B2 (en) * 2008-06-30 2014-06-24 Gm Global Technology Operations Production of cryptographic keys for an embedded processing device
US8737614B1 (en) * 2008-07-07 2014-05-27 Voltage Security, Inc. Document imaging system with identity-based encryption
EP2316180A4 (en) 2008-08-11 2011-12-28 Assa Abloy Ab SECURE WIEGAND INTERFACE COMMUNICATIONS
ES2485501T3 (es) * 2008-08-14 2014-08-13 Assa Abloy Ab Lector de RFID con heurísticas de detección de ataques incorporadas
US8520854B2 (en) * 2008-08-28 2013-08-27 Red Hat, Inc. Sharing a secret using polynomials over polynomials
US7995765B2 (en) * 2008-08-28 2011-08-09 Red Hat, Inc. Sharing a secret using hyperplanes over GF(q)
US7995764B2 (en) * 2008-08-28 2011-08-09 Red Hat, Inc. Sharing a secret using hyperplanes over GF(2m)
US8675877B2 (en) * 2008-08-29 2014-03-18 Red Hat, Inc. Sharing a secret via linear interpolation
US8559637B2 (en) * 2008-09-10 2013-10-15 Verizon Patent And Licensing Inc. Securing information exchanged via a network
WO2010044056A2 (en) * 2008-10-14 2010-04-22 Koninklijke Philips Electronics N.V. Method and apparatus for pseudonym generation and authentication
CN101420303B (zh) * 2008-12-12 2011-02-02 广州杰赛科技股份有限公司 一种语音数据的通信方法及其装置
US8510558B2 (en) 2009-02-17 2013-08-13 Alcatel Lucent Identity based authenticated key agreement protocol
EP2222015A1 (en) * 2009-02-19 2010-08-25 Thomson Licensing Method and device for hashing onto points of an elliptic curve
US8837718B2 (en) * 2009-03-27 2014-09-16 Microsoft Corporation User-specified sharing of data via policy and/or inference from a hierarchical cryptographic store
US9704159B2 (en) * 2009-05-15 2017-07-11 Entit Software Llc Purchase transaction system with encrypted transaction information
US8166203B1 (en) * 2009-05-29 2012-04-24 Google Inc. Server selection based upon time and query dependent hashing
US8571995B2 (en) * 2009-06-02 2013-10-29 Voltage Security, Inc. Purchase transaction system with encrypted payment card data
CN102474412A (zh) * 2009-07-17 2012-05-23 上海贝尔股份有限公司 Sem内的drm方法和设备以及提供drm服务的方法
US8510835B1 (en) 2009-09-18 2013-08-13 Trend Micro Incorporated Techniques for protecting data in cloud computing environments
US8826013B1 (en) 2009-09-23 2014-09-02 Trend Micro Incorporated Protection of customer data in cloud virtual machines using a central management server
US8219792B2 (en) * 2009-10-06 2012-07-10 Dell Products L.P. System and method for safe information handling system boot
JP4802274B2 (ja) * 2009-10-30 2011-10-26 インターナショナル・ビジネス・マシーンズ・コーポレーション メッセージ送信および受信方法
US8666812B1 (en) * 2009-11-10 2014-03-04 Google Inc. Distributing content based on transaction information
US8219810B2 (en) * 2009-11-13 2012-07-10 Palo Alto Research Center Incorporated Method and system for facilitating throttling of interpolation-based authentication
EP2348452B1 (en) 2009-12-18 2014-07-02 CompuGroup Medical AG A computer implemented method for sending a message to a recipient user, receiving a message by a recipient user, a computer readable storage medium and a computer system
EP2348447B1 (en) 2009-12-18 2014-07-16 CompuGroup Medical AG A computer implemented method for generating a set of identifiers from a private key, computer implemented method and computing device
EP2348449A3 (en) 2009-12-18 2013-07-10 CompuGroup Medical AG A computer implemented method for performing cloud computing on data being stored pseudonymously in a database
EP2525339A4 (en) * 2010-01-13 2013-09-11 Mitsubishi Electric Corp SECRET RECOVERY SYSTEM, PUBLIC PARAMETER GENERATION DEVICE, ENCRYPTION DEVICE, SECRET USER KEY GENERATION DEVICE, REQUEST TRANSMITTING DEVICE, RECOVERY DEVICE, COMPUTER PROGRAM, SECRET RECOVERY METHOD, GENERATION METHOD PUBLIC PARAMETER METHOD, ENCRYPTION METHOD, SECRET USER KEY GENERATION METHOD, REQUESTING METHOD FOR REQUESTING, AND RECOVERY METHOD
US8488783B2 (en) * 2010-02-19 2013-07-16 Nokia Method and apparatus for applying recipient criteria in identity-based encryption
US8934626B2 (en) * 2010-03-03 2015-01-13 Nagravision S.A. Method to manage revocations in a group of terminals
EP2365456B1 (en) 2010-03-11 2016-07-20 CompuGroup Medical SE Data structure, method and system for predicting medical conditions
US9025767B2 (en) * 2010-03-24 2015-05-05 Nokia Corporation Method and apparatus for querying content protected by identity-based encryption
US8553878B2 (en) * 2010-04-14 2013-10-08 Apple Inc. Data transformation system using cyclic groups
US9772834B2 (en) * 2010-04-27 2017-09-26 Red Hat, Inc. Exportable encoded identifications of networked machines
JP5424974B2 (ja) * 2010-04-27 2014-02-26 三菱電機株式会社 暗号処理システム、鍵生成装置、暗号化装置、復号装置、署名処理システム、署名装置及び検証装置
US8423764B2 (en) 2010-06-23 2013-04-16 Motorola Solutions, Inc. Method and apparatus for key revocation in an attribute-based encryption scheme
RU2452111C1 (ru) * 2010-11-17 2012-05-27 ЗАО Институт инфокоммуникационных технологий Способ пороговой генерации ключей для системы защиты информации на основе идентификационных данных
US8656484B2 (en) 2010-12-28 2014-02-18 Authernative, Inc. System and method for mutually authenticated cryptographic key exchange using matrices
US8621227B2 (en) 2010-12-28 2013-12-31 Authernative, Inc. System and method for cryptographic key exchange using matrices
US20130042112A1 (en) * 2011-02-12 2013-02-14 CertiVox Ltd. Use of non-interactive identity based key agreement derived secret keys with authenticated encryption
CA2795287C (en) * 2011-04-01 2018-02-27 Certicom Corp. Identity-based decryption
DE112012000971B4 (de) * 2011-04-29 2014-06-26 International Business Machines Corp. Datenverschlüsselung
US8661240B2 (en) 2011-04-29 2014-02-25 International Business Machines Corporation Joint encryption of data
CN103650410A (zh) * 2011-05-31 2014-03-19 三星Sds株式会社 基于id的加密及签名方法以及终端
US10318932B2 (en) 2011-06-07 2019-06-11 Entit Software Llc Payment card processing system with structure preserving encryption
US8627508B2 (en) 2011-06-17 2014-01-07 Microsoft Corporation Cloud key directory for federating data exchanges
US8891772B2 (en) * 2011-06-17 2014-11-18 Microsoft Corporation Cloud key escrow system
WO2013009290A1 (en) * 2011-07-11 2013-01-17 Hewlett-Packard Development Company, Lp Policy based data management
KR101574030B1 (ko) * 2011-07-15 2015-12-02 알까뗄 루슨트 안전한 그룹 메시징
US8619986B2 (en) 2011-07-21 2013-12-31 Patton Protection Systems LLC Systems and methods for secure communication using a communication encryption bios based upon a message specific identifier
US8892875B1 (en) 2011-07-29 2014-11-18 Trend Micro Incorporated Methods and apparatus for controlling access to encrypted computer files
JP2013042315A (ja) * 2011-08-12 2013-02-28 Sony Corp 情報処理装置、及び情報処理方法
US8948381B2 (en) * 2011-09-09 2015-02-03 Fujitsu Limited Conditional key generation based on expiration date of data
EP2748963A4 (en) * 2011-09-30 2015-06-17 Ranganath C Abeyweera METHOD, SYSTEM AND DEVICE FOR COMMUNICATIONS CLIENT PROGRAM AND ASSOCIATED TRANSFER SERVER PROVIDING NAMED AND SECURE COMMUNICATIONS
US9154302B2 (en) 2012-01-25 2015-10-06 CertiVox Ltd. System and method for secure two-factor authenticated ID-based key exchange and remote login using an insecure token and simple second-factor such as a PIN number
US9065637B2 (en) * 2012-01-25 2015-06-23 CertiVox Ltd. System and method for securing private keys issued from distributed private key generator (D-PKG) nodes
EP2810402B1 (en) * 2012-02-03 2018-07-25 Qredo Limited A method and database system for secure storage and communication of information
US8694771B2 (en) 2012-02-10 2014-04-08 Connect In Private Panama Corp. Method and system for a certificate-less authenticated encryption scheme using identity-based encryption
PL2648170T3 (pl) * 2012-04-06 2015-05-29 Kapsch Trafficcom Ag Sposób wykrywania przekroczenia dozwolonej prędkości przez pojazd
KR101329007B1 (ko) * 2012-05-31 2013-11-12 삼성에스디에스 주식회사 아이디 기반 암호 시스템을 위한 비밀키 생성 장치 및 그 방법, 그리고 그 방법을 컴퓨터에서 실행시키기 위한 프로그램을 기록한 기록매체
JP5985894B2 (ja) * 2012-06-06 2016-09-06 株式会社東海理化電機製作所 電子キー登録方法
JP5990406B2 (ja) * 2012-06-06 2016-09-14 株式会社東海理化電機製作所 電子キー登録方法
FR2992509B1 (fr) * 2012-06-21 2017-05-26 Commissariat Energie Atomique Dispositif et procede pour generer une cle de session
US10984415B2 (en) * 2012-06-25 2021-04-20 Li Tan System and methods for using limit-use encrypted code to transfer values securely among users
US10148285B1 (en) 2012-07-25 2018-12-04 Erich Schmitt Abstraction and de-abstraction of a digital data stream
CN103780385B (zh) * 2012-10-23 2017-02-15 航天信息股份有限公司 基于椭圆曲线的盲签名方法和装置
US10007803B2 (en) * 2012-10-26 2018-06-26 Infosys Limited Searching over encrypted keywords in a database
KR101493212B1 (ko) * 2012-10-31 2015-02-23 삼성에스디에스 주식회사 아이디 기반 암호화, 복호화 방법 및 이를 수행하기 위한 장치
US9230072B1 (en) * 2012-12-17 2016-01-05 Creative Information Technology, Inc. Dynamic identity program templates
US8763085B1 (en) 2012-12-19 2014-06-24 Trend Micro Incorporated Protection of remotely managed virtual machines
US9197422B2 (en) * 2013-01-24 2015-11-24 Raytheon Company System and method for differential encryption
US9020151B1 (en) 2013-03-04 2015-04-28 Trend Micro Incorporated Secure real-time data replication with disk encryption and key management system
US8971540B2 (en) 2013-05-30 2015-03-03 CertiVox Ltd. Authentication
US9106644B2 (en) 2013-05-30 2015-08-11 CertiVox Ltd. Authentication
GB201309702D0 (en) 2013-05-30 2013-07-17 Certivox Ltd Security
CN104219047B (zh) * 2013-05-31 2017-12-15 华为技术有限公司 一种签名验证的方法及设备
KR101460541B1 (ko) * 2013-07-15 2014-11-11 고려대학교 산학협력단 사용자 아이디 기반 공개키 암호화 방법
US9197419B1 (en) 2013-10-14 2015-11-24 Trend Micro Incorporated Security system for data stored in the cloud
US9275242B1 (en) 2013-10-14 2016-03-01 Trend Micro Incorporated Security system for cloud-based emails
US10019519B2 (en) * 2013-10-30 2018-07-10 Gordon E. Seay Methods and systems for utilizing global entities in software applications
JP5915629B2 (ja) * 2013-11-28 2016-05-11 トヨタ自動車株式会社 データ共有システムにおける通信方法、データ共有システム、および通信ノード
US9219722B2 (en) 2013-12-11 2015-12-22 Globalfoundries Inc. Unclonable ID based chip-to-chip communication
US9628516B2 (en) 2013-12-12 2017-04-18 Hewlett Packard Enterprise Development Lp Policy-based data management
IN2014CH00681A (US20030081785A1-20030501-P00902.png) 2014-02-13 2015-08-14 Infosys Ltd
US10795858B1 (en) 2014-02-18 2020-10-06 Erich Schmitt Universal abstraction and de-abstraction of a digital data stream
US9946858B2 (en) * 2014-05-05 2018-04-17 Analog Devices, Inc. Authentication system and device including physical unclonable function and threshold cryptography
US9672342B2 (en) 2014-05-05 2017-06-06 Analog Devices, Inc. System and device binding metadata with hardware intrinsic properties
US10432409B2 (en) 2014-05-05 2019-10-01 Analog Devices, Inc. Authentication system and device including physical unclonable function and threshold cryptography
CN105099897B (zh) * 2014-05-13 2020-01-21 中兴通讯股份有限公司 一种在浏览器和电信网络之间进行通信的方法和网关
US9703979B1 (en) * 2014-06-13 2017-07-11 BicDroid Inc. Methods and computer program products for encryption key generation and management
WO2015188277A1 (en) 2014-06-13 2015-12-17 BicDroid Inc. Methods, systems and computer program product for providing encryption on a plurality of devices
CN104506483A (zh) * 2014-10-21 2015-04-08 中兴通讯股份有限公司 一种信息加密解密、管理密钥的方法、终端及网络服务器
US10333696B2 (en) 2015-01-12 2019-06-25 X-Prime, Inc. Systems and methods for implementing an efficient, scalable homomorphic transformation of encrypted data with minimal data expansion and improved processing efficiency
US10020940B2 (en) * 2015-02-23 2018-07-10 Oracle International Corporation Identity-based encryption for securing access to stored messages
US10015017B2 (en) * 2015-04-09 2018-07-03 Qualcomm Incorporated Proof of work based user identification system
GB201509499D0 (en) * 2015-06-02 2015-07-15 Certivox Ltd Zkd
US9590956B1 (en) 2015-12-18 2017-03-07 Wickr Inc. Decentralized authoritative messaging
CN105530087B (zh) * 2015-12-28 2019-05-10 北京航空航天大学 适应性选择密文安全的属性基加密方法
WO2017145019A1 (en) 2016-02-23 2017-08-31 nChain Holdings Limited Registry and automated management method for blockchain-enforced smart contracts
US11625694B2 (en) 2016-02-23 2023-04-11 Nchain Licensing Ag Blockchain-based exchange with tokenisation
GB2561729A (en) 2016-02-23 2018-10-24 Nchain Holdings Ltd Secure multiparty loss resistant storage and transfer of cryptographic keys for blockchain based systems in conjunction with a wallet management system
EP4369273A2 (en) 2016-02-23 2024-05-15 nChain Licensing AG A method and system for securing computer software using a distributed hash table and a blockchain
EP3420669B1 (en) 2016-02-23 2021-03-24 Nchain Holdings Limited Cryptographic method and system for secure extraction of data from a blockchain
CA3014737A1 (en) 2016-02-23 2017-08-31 nChain Holdings Limited Blockchain-implemented method for control and distribution of digital content
CA3014748C (en) * 2016-02-23 2024-03-12 nChain Holdings Limited Personal device security using elliptic curve cryptography for secret sharing
CN115549887A (zh) 2016-02-23 2022-12-30 恩链控股有限公司 用于信息的安全交换的公共秘密的确定和层级确定性密钥
KR20180115727A (ko) 2016-02-23 2018-10-23 엔체인 홀딩스 리미티드 보안 투표 및 분배에서 사용을 위한 블록체인 구현 카운팅 시스템 및 방법
EA201891830A1 (ru) 2016-02-23 2019-02-28 Нчейн Холдингс Лимитед Система и способ управления действиями, связанными с активами, посредством блокчейна
JP6844411B2 (ja) * 2016-05-17 2021-03-17 富士通株式会社 関係暗号化
JP6719339B2 (ja) * 2016-08-30 2020-07-08 三菱電機株式会社 暗号システム、暗号方法及び暗号プログラム
CN110050437B (zh) * 2016-09-06 2020-10-23 华为技术有限公司 分布式证书注册的装置和方法
US10389719B2 (en) 2016-10-28 2019-08-20 Entit Software Llc Parameter based data access on a security information sharing platform
CN106570405B (zh) * 2016-11-04 2020-10-27 北京百度网讯科技有限公司 一种在输入法中对文字进行加密/解密的方法和装置
US10452877B2 (en) 2016-12-16 2019-10-22 Assa Abloy Ab Methods to combine and auto-configure wiegand and RS485
US10341098B2 (en) * 2017-01-24 2019-07-02 Nxp B.V. Method of generating cryptographic key pairs
US11356427B1 (en) 2017-02-15 2022-06-07 Wells Fargo Bank, N.A. Signcrypted envelope message
US10484379B2 (en) * 2017-03-16 2019-11-19 Motorola Solutions, Inc. System and method for providing least privilege access in a microservices architecture
EP3379766B1 (en) * 2017-03-20 2019-06-26 Huawei Technologies Co., Ltd. A wireless communication device for communication in a wireless communication network
US11354660B1 (en) 2017-04-27 2022-06-07 Wells Fargo Bank, N.A. Encapsulation of payment information
US10425235B2 (en) 2017-06-02 2019-09-24 Analog Devices, Inc. Device and system with global tamper resistance
US10958452B2 (en) 2017-06-06 2021-03-23 Analog Devices, Inc. System and device including reconfigurable physical unclonable functions and threshold cryptography
CN107257279B (zh) * 2017-06-29 2020-02-11 广东浩云长盛网络股份有限公司 一种明文数据加密方法及设备
WO2019074479A1 (en) * 2017-10-09 2019-04-18 Hewlett-Packard Development Company, L.P. RECEIPTS OF CHILD TRANSACTIONS
US11146397B2 (en) * 2017-10-31 2021-10-12 Micro Focus Llc Encoding abelian variety-based ciphertext with metadata
US10846412B2 (en) * 2017-11-14 2020-11-24 Blackberry Limited Electronic device including display and method of encrypting and decrypting information
US10594666B2 (en) * 2017-12-19 2020-03-17 Micron Technology, Inc. Secure message including a vehicle private key
WO2019124953A1 (en) * 2017-12-20 2019-06-27 Lg Electronics Inc. Cryptographic methods and systems for authentication in connected vehicle systems and for other uses
SG10201801094VA (en) 2018-02-08 2019-09-27 Huawei Int Pte Ltd System and method for computing an escrow session key and a private session key for encoding digital communications between two devices
US10911227B2 (en) * 2018-04-12 2021-02-02 Mastercard International Incorporated Method and system for managing centralized encryption and data format validation for secure real time multi-party data distribution
US20190378121A1 (en) * 2018-05-25 2019-12-12 Finco Services, Inc. Cryptographic technology platform and methods for providers to enable users to monetize their data
CN113330712A (zh) * 2018-11-13 2021-08-31 蓝捕快股份公司 采用基于排列群的加密技术的加密系统及方法
EP3664361A1 (en) * 2018-12-06 2020-06-10 Secure-IC SAS Methods and devices for secured identity-based encryption systems with two trusted centers
FR3091107A1 (fr) * 2018-12-24 2020-06-26 Orange Procédé et système de génération de clés pour un schéma de signatures anonymes
CN109687959B (zh) * 2018-12-29 2021-11-12 上海唯链信息科技有限公司 密钥安全管理系统和方法、介质和计算机程序
US11764940B2 (en) 2019-01-10 2023-09-19 Duality Technologies, Inc. Secure search of secret data in a semi-trusted environment using homomorphic encryption
US11139982B2 (en) * 2019-01-30 2021-10-05 Rsa Security Llc Communication-efficient device delegation
CN110166254B (zh) * 2019-05-27 2020-09-29 国家电网有限公司 利用智能合约实现基于身份的密钥管理方法及装置
WO2020242614A1 (en) 2019-05-30 2020-12-03 Kim Bong Mann Quantum safe cryptography and advanced encryption and key exchange (aeke) method for symmetric key encryption/exchange
JP2021026049A (ja) * 2019-07-31 2021-02-22 株式会社リコー 受信装置、情報処理システム、受信方法
US11588646B2 (en) 2019-09-05 2023-02-21 Cisco Technology, Inc. Identity-based application and file verification
EP4066437A1 (en) 2019-11-28 2022-10-05 VIBE Cybersecurity IP Inc. Method and system for a verifiable identity based encryption (vibe) using certificate-less authentication encryption (clae)
JP7254296B2 (ja) * 2019-12-12 2023-04-10 日本電信電話株式会社 鍵交換システム、情報処理装置、鍵交換方法及びプログラム
KR102524268B1 (ko) * 2020-05-12 2023-04-20 배 시스템즈 인포메이션 앤드 일렉트로닉 시스템즈 인티크레이션, 인크. 무선 다중 퓨즈 세터 인터페이스
US11870898B2 (en) * 2020-05-21 2024-01-09 Workday, Inc. Split keys for wallet recovery
US11405200B1 (en) 2020-05-21 2022-08-02 Workday, Inc. Multilevel split keys for wallet recovery
CN111740958A (zh) * 2020-05-22 2020-10-02 卓望数码技术（深圳）有限公司 数据加密方法、解密方法、加解密传输方法及系统
CN111698095B (zh) * 2020-06-17 2023-07-11 南京如般量子科技有限公司 基于id密码学和对称密钥池的数据链抗量子计算通信方法及系统
US11451389B2 (en) 2020-06-25 2022-09-20 Bank Of America Corporation Multi-encrypted message response manager
US11757846B2 (en) 2020-06-25 2023-09-12 Bank Of America Corporation Cognitive multi-encrypted mail platform
US11122021B1 (en) 2020-06-25 2021-09-14 Bank Of America Corporation Server for handling multi-encrypted messages
WO2022008940A1 (en) 2020-07-07 2022-01-13 Vibe Cybersecurity Inc. Method and system for a verifiable identity based encryption (vibe) using certificate-less authentication encryption (clae)
US11621837B2 (en) * 2020-09-03 2023-04-04 Theon Technology Llc Secure encryption of data using partial-key cryptography
US11310042B2 (en) 2020-09-11 2022-04-19 Crown Sterling Limited, LLC Methods of storing and distributing large keys
CN112019335B (zh) * 2020-09-18 2023-12-29 上海市数字证书认证中心有限公司 一种基于sm2算法的多方协同加解密方法及装置、系统、介质
CN112583590B (zh) * 2020-12-14 2022-06-17 联芸科技（杭州）有限公司 基于群组共享密钥的信息发布方法及系统
CN112528312B (zh) * 2020-12-24 2023-10-03 贵州大学 一种基于Cocks身份密码体制的签密方法及系统
CN113312608B (zh) * 2021-04-23 2024-03-08 中国电力科学研究院有限公司 一种基于时间戳的电力计量终端身份认证方法及系统
CN113094675B (zh) * 2021-04-29 2023-03-28 香港中文大学（深圳） 基于分布式模型训练的用户认证方法及装置
AU2022315209A1 (en) * 2021-07-22 2024-02-22 Howard University Hybrid public-key and private-key cryptographic systems based on iso-rsa encryption scheme
CN113794702A (zh) * 2021-08-31 2021-12-14 杭州控客信息技术有限公司 智能家居系统中通信高级别加密方法
US11755772B2 (en) 2021-09-20 2023-09-12 Crown Sterling Limited, LLC Securing data in a blockchain with a one-time pad
CN113890730A (zh) * 2021-09-23 2022-01-04 上海华兴数字科技有限公司 数据传输方法及系统
CN114065171B (zh) * 2021-11-11 2022-07-08 北京海泰方圆科技股份有限公司 一种身份认证方法、装置、系统、设备及介质
US11943336B2 (en) 2021-11-22 2024-03-26 Theon Technology Llc Use of gradient decent function in cryptography
US11791988B2 (en) 2021-11-22 2023-10-17 Theon Technology Llc Use of random entropy in cryptography
US11902420B2 (en) 2021-11-23 2024-02-13 Theon Technology Llc Partial cryptographic key transport using one-time pad encryption
EP4195581A1 (en) * 2021-12-08 2023-06-14 Nagravision Sàrl Improvements in and relating to cryptography
CN114679262A (zh) * 2021-12-31 2022-06-28 广东国腾量子科技有限公司 一种融合非对称体制的量子密钥分发系统及方法
CN114422220B (zh) * 2022-01-06 2024-02-27 浙江数秦科技有限公司 一种密文不唯一的数据加密传输方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002026892A (ja) * 2000-05-02 2002-01-25 Murata Mach Ltd 鍵共有方法，秘密鍵生成方法，共通鍵生成方法，暗号通信方法，秘密鍵生成器，共通鍵生成器，暗号通信システム及び記録媒体

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4405829A (en) 1977-12-14 1983-09-20 Massachusetts Institute Of Technology Cryptographic communications system and method
US4748668A (en) 1986-07-09 1988-05-31 Yeda Research And Development Company Limited Method, apparatus and article for identification and signature
EP0277247B1 (en) 1986-07-31 1994-05-04 Kabushiki Kaisya Advance System for generating a shared cryptographic key and a communication system using the shared cryptographic key
GB2235799A (en) * 1989-09-06 1991-03-13 Philips Electronic Associated Differentiator circuit
ATE119726T1 (de) * 1990-10-24 1995-03-15 Omnisec Ag Geheimübertragungssystem mit möglichkeit zur verschlüsselten kommunikation zwischen benutzern mit gesichertem schlüssel, welcher ohne benutzereinwirkung bestimmt wird.
DE69113245D1 (de) * 1991-03-14 1995-10-26 Omnisec Ag Regensdorf Verschlüsselungssystem mit öffentlichem Schlüssel unter Verwendung elliptischer Kurven über Ringe.
US5202921A (en) 1991-04-01 1993-04-13 International Business Machines Corporation Method and apparatus for authenticating users of a communication system to each other
US5272755A (en) 1991-06-28 1993-12-21 Matsushita Electric Industrial Co., Ltd. Public key cryptosystem with an elliptic curve
US6307935B1 (en) * 1991-09-17 2001-10-23 Apple Computer, Inc. Method and apparatus for fast elliptic encryption with direct embedding
US5271061A (en) 1991-09-17 1993-12-14 Next Computer, Inc. Method and apparatus for public key exchange in a cryptographic system
US5159632A (en) 1991-09-17 1992-10-27 Next Computer, Inc. Method and apparatus for public key exchange in a cryptographic system
JP2000515649A (ja) * 1996-08-07 2000-11-21 バンカーズ・トラスト・コーポレーション 見ることができ信頼できる当事者による同時性電子トランザクション
US5982898A (en) * 1997-03-07 1999-11-09 At&T Corp. Certification process
US6061448A (en) 1997-04-01 2000-05-09 Tumbleweed Communications Corp. Method and system for dynamic server document encryption
JP3542895B2 (ja) * 1997-08-22 2004-07-14 インターナショナル・ビジネス・マシーンズ・コーポレーション 時間制約暗号システム
JP3275812B2 (ja) * 1997-12-12 2002-04-22 日本電気株式会社 Ｉｄ認証付鍵配送方法及びその装置並びにプログラムを記録した機械読み取り可能な記録媒体
CA2313328A1 (en) * 1998-01-09 1999-07-15 Matthew Hur Client side public key authentication method and apparatus with short-lived certificates
US6446205B1 (en) * 1998-12-10 2002-09-03 Citibank, N.A. Cryptosystems with elliptic curves chosen by users
JP2001209313A (ja) * 2000-01-25 2001-08-03 Canon Inc 証明書発行装置、情報処理装置、情報通信システム、属性証明方法、及び記憶媒体
US7239701B1 (en) * 2000-05-02 2007-07-03 Murata Machinery Ltd. Key sharing method, secret key generating method, common key generating method and cryptographic communication method in ID-NIKS cryptosystem
JP2002164877A (ja) * 2000-09-14 2002-06-07 Advanced Mobile Telecommunications Security Technology Research Lab Co Ltd キーエスクローおよびグループ通信方法
US6970562B2 (en) 2000-12-19 2005-11-29 Tricipher, Inc. System and method for crypto-key generation and use in cryptosystem
GB2370471B (en) 2000-12-20 2004-06-23 Director Government Comm Headq Directoryless Public Key Cryptographic System and Method
EP1425874B1 (en) * 2001-08-13 2010-04-21 Board Of Trustees Of The Leland Stanford Junior University Systems and methods for identity-based encryption and related cryptographic techniques
US6886096B2 (en) * 2002-11-14 2005-04-26 Voltage Security, Inc. Identity-based encryption system
FR2892251A1 (fr) * 2005-10-14 2007-04-20 Gemplus Sa Procede cryptographique mettant en oeuvre un systeme de chiffrement base sur l'identite
US8694771B2 (en) * 2012-02-10 2014-04-08 Connect In Private Panama Corp. Method and system for a certificate-less authenticated encryption scheme using identity-based encryption

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002026892A (ja) * 2000-05-02 2002-01-25 Murata Mach Ltd 鍵共有方法，秘密鍵生成方法，共通鍵生成方法，暗号通信方法，秘密鍵生成器，共通鍵生成器，暗号通信システム及び記録媒体

Cited By (66)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2012032843A (ja) * 2001-08-13 2012-02-16 Univ Leland Stanford Jr Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法
JP2006524352A (ja) * 2003-04-23 2006-10-26 ヒューレット−パッカード デベロップメント カンパニー エル．ピー． バイオメトリクスに基づいたアイデンティティベースの暗号化方法および装置
JP2008527866A (ja) * 2005-01-14 2008-07-24 ベイジン イー‐ヘンシェン オーセンティケイション テクノロジーズ カンパニー リミテッド 識別情報に基づく暗号鍵方法及びデバイス
US10243734B2 (en) 2005-01-21 2019-03-26 Certicom Corp. Elliptic curve random number generation
US11477019B2 (en) 2005-01-21 2022-10-18 Blackberry Limited Elliptic curve random number generation
US11876901B2 (en) 2005-01-21 2024-01-16 Malikie Innovations Limited Elliptic curve random number generation
US10756893B2 (en) 2005-01-21 2020-08-25 Blackberry Limited Elliptic curve random number generation
JP2012073638A (ja) * 2005-01-21 2012-04-12 Certicom Corp 楕円曲線乱数生成
US8948388B2 (en) 2005-01-21 2015-02-03 Certicom Corp. Elliptic curve random number generation
JP2006221161A (ja) * 2005-02-08 2006-08-24 Microsoft Corp Ｃａｒｔｉｅｒ対形成の暗号化適用
KR101169100B1 (ko) 2005-03-07 2012-07-26 마이크로소프트 코포레이션 비대칭 키 보안을 위한 시스템 및 방법
JP2006254423A (ja) * 2005-03-07 2006-09-21 Microsoft Corp プライバシーのあるｉｄ認識のための方法およびシステム
JP4646691B2 (ja) * 2005-05-10 2011-03-09 株式会社エヌ・ティ・ティ・データ 暗号化通信システム、秘密鍵発行装置、および、プログラム
JP2006319457A (ja) * 2005-05-10 2006-11-24 Ntt Data Corp 暗号化通信システム、秘密鍵発行装置、および、プログラム
US10797867B2 (en) 2005-12-01 2020-10-06 Nec Corporation System and method for electronic bidding
JP4962317B2 (ja) * 2005-12-01 2012-06-27 日本電気株式会社 電子入札システムおよび電子入札方法
WO2007063876A1 (ja) * 2005-12-01 2007-06-07 Nec Corporation 電子入札システムおよび電子入札方法
US8111826B2 (en) 2006-01-11 2012-02-07 Mitsubishi Electric Corporation Apparatus for generating elliptic curve cryptographic parameter, apparatus for processing elliptic curve cryptograph, program for generating elliptic curve cryptographic parameter, and program for processing elliptic cyptograph
JPWO2007080633A1 (ja) * 2006-01-11 2009-06-11 三菱電機株式会社 楕円曲線暗号パラメータ生成装置及び楕円曲線暗号演算装置及び楕円曲線暗号パラメータ生成プログラム及び楕円曲線暗号演算プログラム
JP4688886B2 (ja) * 2006-01-11 2011-05-25 三菱電機株式会社 楕円曲線暗号パラメータ生成装置及び楕円曲線暗号システム及び楕円曲線暗号パラメータ生成プログラム
US8180047B2 (en) 2006-01-13 2012-05-15 Microsoft Corporation Trapdoor pairings
JP2009532970A (ja) * 2006-04-03 2009-09-10 トレンド・マイクロ・（エンクリプション）・リミテッド 電子データ通信システム
JP4556917B2 (ja) * 2006-06-22 2010-10-06 日本電気株式会社 判定システム、判定方法、判定装置およびプログラム
JP2008003836A (ja) * 2006-06-22 2008-01-10 Nec Corp 判定システム、判定方法、判定装置およびプログラム
JP2008054315A (ja) * 2006-08-22 2008-03-06 Ntt Data Corp 暗号文復号権限委譲システム
JP2008152737A (ja) * 2006-12-20 2008-07-03 Nippon Telegr & Teleph Corp <Ntt> サービス提供サーバ、認証サーバ、および認証システム
JP2010537541A (ja) * 2007-08-20 2010-12-02 サムスン エレクトロニクス カンパニー リミテッド ホームネットワークでデバイス間で秘密情報を共有する方法及びそのための装置
US9094192B2 (en) 2007-08-20 2015-07-28 Samsung Electronics Co., Ltd. Method of and apparatus for sharing secret information between device in home network
JP2009130447A (ja) * 2007-11-20 2009-06-11 Nippon Telegr & Teleph Corp <Ntt> 行動証明書発行方法、行動証明書発行装置、行動証明書発行プログラムおよび行動証明書発行・検証システム
JP2009201090A (ja) * 2007-12-11 2009-09-03 Sony Corp 鍵生成装置、暗号化装置、受信装置、鍵生成方法、暗号化方法、鍵処理方法およびプログラム
JP2009296209A (ja) * 2008-06-04 2009-12-17 Nippon Telegr & Teleph Corp <Ntt> 鍵配送方法、鍵配送システム、クライアント装置、鍵サーバ装置、それらのプログラム
JP2010004288A (ja) * 2008-06-19 2010-01-07 Nippon Telegr & Teleph Corp <Ntt> 秘密情報送信システム、秘密情報送信方法、秘密情報管理サーバ、暗号装置、秘密情報送信プログラム
JP2011528876A (ja) * 2008-07-23 2011-11-24 西安西▲電▼捷通▲無▼▲綫▼▲網▼絡通信股▲分▼有限公司 電子タグに適するデータセキュリティアクセス方法
US10423301B2 (en) 2008-08-11 2019-09-24 Microsoft Technology Licensing, Llc Sections of a presentation having user-definable properties
JP2010081188A (ja) * 2008-09-25 2010-04-08 Kddi Corp 無線通信チャネルの設定方法、該方法のための仲介装置及びプログラム
JP2010117384A (ja) * 2008-11-11 2010-05-27 Sony Corp 情報処理装置、情報処理方法およびプログラム
JP2010154193A (ja) * 2008-12-25 2010-07-08 Nippon Telegr & Teleph Corp <Ntt> 階層型ｉｄベース暗号化装置及び復号化装置、それらの方法、プログラム及び記録媒体
JP2010161523A (ja) * 2009-01-07 2010-07-22 Nippon Telegr & Teleph Corp <Ntt> 鍵生成装置、暗号化装置、復号化装置、暗号化システム、鍵生成方法、暗号化方法、復号化方法、プログラム、および記録媒体
JP2010164796A (ja) * 2009-01-16 2010-07-29 Nippon Telegr & Teleph Corp <Ntt> 変換演算装置、その方法、プログラム及び記録媒体
JP2012518330A (ja) * 2009-02-16 2012-08-09 マイクロソフト コーポレーション 高信頼なクラウド・コンピューティングおよびクラウド・サービスのフレームワーク
US9165154B2 (en) 2009-02-16 2015-10-20 Microsoft Technology Licensing, Llc Trusted cloud computing and services framework
JP2012518329A (ja) * 2009-02-16 2012-08-09 マイクロソフト コーポレーション 信頼済みクラウドコンピューティングおよびサービスに関するフレームワーク
JP2013503565A (ja) * 2009-08-28 2013-01-31 アルカテル−ルーセント マルチメディア通信システムにおけるセキュリティで保護された鍵管理
US9049024B2 (en) 2009-08-28 2015-06-02 Alcatel Lucent Secure key management in conferencing system
US8850203B2 (en) 2009-08-28 2014-09-30 Alcatel Lucent Secure key management in multimedia communication system
JP2013503564A (ja) * 2009-08-28 2013-01-31 アルカテル−ルーセント 会議システムにおけるセキュリティで保護された鍵管理
JP2011124853A (ja) * 2009-12-11 2011-06-23 Ntt Data Corp 暗号文復号権限委譲システム、暗号文復号権限委譲方法、暗号文変換装置、復号権限所持者用装置および暗号文変換プログラム
US8615668B2 (en) 2010-01-15 2013-12-24 Mitsubishi Electric Corporation Confidential search system and cryptographic processing system
JP2012154977A (ja) * 2011-01-21 2012-08-16 Nippon Telegr & Teleph Corp <Ntt> 関数暗号を用いた時限暗号システム、時限暗号方法、装置、プログラム
JP2014514889A (ja) * 2011-05-11 2014-06-19 アルカテル−ルーセント 公開鍵を利用した鍵管理のためのセキュリティアソシエーションの発見
US11356457B2 (en) 2011-09-29 2022-06-07 Amazon Technologies, Inc. Parameter based key derivation
JP2019149833A (ja) * 2011-09-29 2019-09-05 アマゾン テクノロジーズ インコーポレイテッド パラメータベースのキー導出
JP2014026238A (ja) * 2012-07-30 2014-02-06 Kanazawa Univ 公開鍵暗号システム、送信装置、受信装置、公開鍵暗号方法、プログラム、及び記録媒体
JP2018523360A (ja) * 2015-05-29 2018-08-16 ファーウェイ インターナショナル プライベート リミテッドＨｕａｗｅｉ Ｉｎｔｅｒｎａｔｉｏｎａｌ Ｐｔｅ． Ｌｔｄ． 安全なｓｍｓ通信のための方法及びシステム
JP7391424B2 (ja) 2016-04-14 2023-12-05 ロンバス システムズ グループ， インコーポレイテッド 無人航空機の完全性を検証するためのシステム
JP2019518642A (ja) * 2016-04-14 2019-07-04 ロンバス システムズ グループ， インコーポレイテッドＲｈｏｍｂｕｓ Ｓｙｓｔｅｍｓ Ｇｒｏｕｐ， Ｉｎｃ． 無人航空機の完全性を検証するためのシステム
US11184155B2 (en) 2016-08-09 2021-11-23 Amazon Technologies, Inc. Cryptographic key management for imported cryptographic keys
JP2020523813A (ja) * 2017-06-07 2020-08-06 エヌチェーン ホールディングス リミテッドＮｃｈａｉｎ Ｈｏｌｄｉｎｇｓ Ｌｉｍｉｔｅｄ ブロックチェーンネットワークのためのクレデンシャル生成及び分配方法
US11979493B2 (en) 2017-06-07 2024-05-07 Nchain Licensing Ag Methods and systems to establish trusted peer-to-peer communications between nodes in a blockchain network
JP7043203B2 (ja) 2017-08-29 2022-03-29 Kddi株式会社 暗号化装置、復号装置、暗号化システム、暗号化方法及び暗号化プログラム
JP2019041355A (ja) * 2017-08-29 2019-03-14 Kddi株式会社 暗号化装置、復号装置、暗号化システム、暗号化方法及び暗号化プログラム
WO2020241817A1 (ja) * 2019-05-29 2020-12-03 株式会社ｂｉｔＦｌｙｅｒ Ｂｌｏｃｋｃｈａｉｎ 公開鍵の信頼性を証明するための装置、方法及びそのためのプログラム
CN114128213A (zh) * 2019-05-29 2022-03-01 比特飞翔区块链株式会社 用于验证公钥的可靠性的装置、方法以及其程序
JP7338405B2 (ja) 2019-10-31 2023-09-05 凸版印刷株式会社 決済認証システム及び決済認証方法
WO2022259495A1 (ja) * 2021-06-10 2022-12-15 日本電信電話株式会社 通信システム、ユーザ端末、通信方法および通信プログラム
WO2022259494A1 (ja) * 2021-06-10 2022-12-15 日本電信電話株式会社 通信システム、ユーザ端末、通信方法および通信プログラム

Also Published As

Publication number Publication date
EP2224637A2 (en) 2010-09-01
JP5933786B2 (ja) 2016-06-15
EP2429116A3 (en) 2012-05-30
WO2003017559A2 (en) 2003-02-27
US20120159188A1 (en) 2012-06-21
EP1425874A2 (en) 2004-06-09
US7634087B2 (en) 2009-12-15
US20100208895A1 (en) 2010-08-19
US8130964B2 (en) 2012-03-06
JP2012032843A (ja) 2012-02-16
DE60236094D1 (de) 2010-06-02
US20030081785A1 (en) 2003-05-01
WO2003017559A3 (en) 2003-07-10
US7113594B2 (en) 2006-09-26
EP2224637B1 (en) 2014-10-08
EP2429116A2 (en) 2012-03-14
EP1425874B1 (en) 2010-04-21
US9356779B2 (en) 2016-05-31
US20070041583A1 (en) 2007-02-22
EP2429116B1 (en) 2013-07-10
EP1425874A4 (en) 2009-04-15
US20090034714A9 (en) 2009-02-05
EP2224637A3 (en) 2012-05-23
AU2002332671A1 (en) 2003-03-03
JP2011151866A (ja) 2011-08-04
JP2015144495A (ja) 2015-08-06
ATE465571T1 (de) 2010-05-15

Similar Documents

Publication Publication Date Title
JP5933786B2 (ja) Ｉｄベース暗号化および関連する暗号手法のシステムおよび方法
Odelu et al. Provably secure authenticated key agreement scheme for smart grid
US8320559B1 (en) Identity-based-encryption system
Chow et al. Efficient unidirectional proxy re-encryption
US8108678B1 (en) Identity-based signcryption system
Al-Riyami Cryptographic schemes based on elliptic curve pairings
Guo et al. Attribute‐based ring signcryption scheme
Lai et al. Self-generated-certificate public key encryption without pairing and its application
Sarier A new biometric identity based encryption scheme secure against DoS attacks
Alimohammadi et al. A secure key-aggregate authentication cryptosystem for data sharing in dynamic cloud storage
Liao et al. Security analysis of a certificateless provable data possession scheme in cloud
Ibrahim et al. Attribute-based authentication on the cloud for thin clients
Qin et al. Strongly secure and cost-effective certificateless proxy re-encryption scheme for data sharing in cloud computing
Callas Identity-based encryption with conventional public-key infrastructure
Jiang et al. Revocable identity‐based matchmaking encryption in the standard model
Yu et al. Achieving flexibility for ABE with outsourcing via proxy re-encryption
Wang et al. New efficient chosen ciphertext secure Elgamal encryption schemes for secure Cloud storage service
Venema et al. Decentralized Attribute-Based Encryption for DECODE
Yang A new efficient signcryption scheme in the standard model
Rasal et al. Amelioration of Decentralized Cipher Text Policy Attribute Based Encryption with Mediator technique by adding Salt.
Kuzhalvaimozhi et al. Public Key Encryption without using Certificate based on Identity Based Cryptography
Zhou et al. A generic construction of accountable decryption and its applications
Elashry et al. Generic mediated encryption
Elashry et al. Mediated encryption: analysis and design
Oswald Identity based encryption

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20050803

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20071113

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20071130

RD04 Notification of resignation of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7424

Effective date: 20071130

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20080212

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20080219

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20080313

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20080321

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20080414

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20080421

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080509

A02 Decision of refusal

Free format text: JAPANESE INTERMEDIATE CODE: A02

Effective date: 20080610

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20080904

A911 Transfer to examiner for re-examination before appeal (zenchi)

Free format text: JAPANESE INTERMEDIATE CODE: A911

Effective date: 20081009

A912 Re-examination (zenchi) completed and case transferred to appeal board

Free format text: JAPANESE INTERMEDIATE CODE: A912

Effective date: 20081205

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20110307

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20110310

A601 Written request for extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A601

Effective date: 20110407

A602 Written permission of extension of time

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20110412

Free format text: JAPANESE INTERMEDIATE CODE: A602

Effective date: 20110412

A521 Request for written amendment filed

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20110509

RD02 Notification of acceptance of power of attorney

Free format text: JAPANESE INTERMEDIATE CODE: A7422

Effective date: 20111027