DE69738931D1 - Vorrrichtung zum digitalen unterschreiben mit rückgewinnung der botschaft - Google Patents

Vorrrichtung zum digitalen unterschreiben mit rückgewinnung der botschaft

Info

Publication number
DE69738931D1
DE69738931D1 DE69738931T DE69738931T DE69738931D1 DE 69738931 D1 DE69738931 D1 DE 69738931D1 DE 69738931 T DE69738931 T DE 69738931T DE 69738931 T DE69738931 T DE 69738931T DE 69738931 D1 DE69738931 D1 DE 69738931D1
Authority
DE
Germany
Prior art keywords
submitting
recovery
message
digital
digital submitting
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 - Lifetime
Application number
DE69738931T
Other languages
English (en)
Inventor
Atsuko Miyaji
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.)
Panasonic Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Application granted granted Critical
Publication of DE69738931D1 publication Critical patent/DE69738931D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3006—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
    • H04L9/302—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters involving the integer factorization problem, e.g. RSA or quadratic sieve [QS] 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
    • 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
    • H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
    • 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
    • H04L9/32—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials
    • H04L9/3247—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols including means for verifying the identity or authority of a user of the system or for message authentication, e.g. authorization, entity authentication, data integrity or data verification, non-repudiation, key authentication or verification of credentials involving digital signatures
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Theoretical Computer Science (AREA)
  • Computing Systems (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Analysis (AREA)
  • Mathematical Optimization (AREA)
  • Mathematical Physics (AREA)
  • Pure & Applied Mathematics (AREA)
  • Algebra (AREA)
  • Physics & Mathematics (AREA)
  • Storage Device Security (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
DE69738931T 1997-01-28 1997-01-28 Vorrrichtung zum digitalen unterschreiben mit rückgewinnung der botschaft Expired - Lifetime DE69738931D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP1997/000181 WO1998033159A1 (fr) 1997-01-28 1997-01-28 Dispositif d'identification du type a reproduction de message

Publications (1)

Publication Number Publication Date
DE69738931D1 true DE69738931D1 (de) 2008-10-02

Family

ID=14179969

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69738931T Expired - Lifetime DE69738931D1 (de) 1997-01-28 1997-01-28 Vorrrichtung zum digitalen unterschreiben mit rückgewinnung der botschaft

Country Status (5)

Country Link
US (1) US6697946B1 (de)
EP (2) EP0977165B1 (de)
KR (1) KR100438257B1 (de)
DE (1) DE69738931D1 (de)
WO (1) WO1998033159A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU769446C (en) * 1999-01-27 2007-09-20 France Telecom Method for proving the authenticity or integrity of a message by means of a public exponent equal to the power of two
JP4692284B2 (ja) * 2004-01-23 2011-06-01 日本電気株式会社 グループ署名システム、方法、装置、およびプログラム
JP4872908B2 (ja) * 2005-02-10 2012-02-08 日本電気株式会社 メンバー証明書獲得装置、メンバー証明書発行装置、グループ署名装置、グループ署名検証装置
CA2702280C (en) 2007-10-29 2013-08-20 Nippon Telegraph And Telephone Corporation Signature generating apparatus, signature verifying apparatus and methods therefor
US20090313171A1 (en) * 2008-06-17 2009-12-17 Microsoft Corporation Electronic transaction verification
RU2448361C2 (ru) * 2010-07-01 2012-04-20 Андрей Рюрикович Федоров Способ восстановления записей в запоминающем устройстве, система для его осуществления и машиночитаемый носитель
WO2012126085A1 (en) * 2011-03-18 2012-09-27 Certicom Corp. Keyed pv signatures
RU2502124C1 (ru) * 2012-09-12 2013-12-20 Общество с ограниченной ответственностью "РЭЙДИКС" Способ восстановления записей в запоминающем устройстве и система для его осуществления
EP3721598A1 (de) * 2017-12-07 2020-10-14 Telefonaktiebolaget LM Ericsson (publ) Sicherheit für gruppenkommunikation
JP7109295B2 (ja) * 2018-07-27 2022-07-29 キヤノン株式会社 認証システム、認証装置、被認証装置及び画像形成装置
US11128454B2 (en) 2019-05-30 2021-09-21 Bong Mann Kim Quantum safe cryptography and advanced encryption and key exchange (AEKE) method for symmetric key encryption/exchange

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69133502T2 (de) * 1990-06-01 2006-09-14 Kabushiki Kaisha Toshiba, Kawasaki Geheimübertragungsverfahren und -gerät
DE69327238T2 (de) * 1993-08-17 2000-09-07 Entrust Technologies Switzerla Verfahren zur digitalen Unterschrift und Verfahren zur Schlüsselübereinkunft
AU3073595A (en) * 1994-07-29 1996-03-04 Certicom Corp. Elliptic curve encryption systems

Also Published As

Publication number Publication date
US6697946B1 (en) 2004-02-24
EP1976180A3 (de) 2010-10-27
EP0977165B1 (de) 2008-08-20
KR20000070493A (ko) 2000-11-25
EP1976180A2 (de) 2008-10-01
KR100438257B1 (ko) 2004-07-02
WO1998033159A1 (fr) 1998-07-30
EP0977165A4 (de) 2004-05-12
EP0977165A1 (de) 2000-02-02

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Legal Events

Date Code Title Description
8327 Change in the person/name/address of the patent owner

Owner name: PANASONIC CORP., KADOMA, OSAKA, JP

8364 No opposition during term of opposition