GB0201282D0 - Cryptosystem - Google Patents

Cryptosystem

Info

Publication number
GB0201282D0
GB0201282D0 GBGB0201282.1A GB0201282A GB0201282D0 GB 0201282 D0 GB0201282 D0 GB 0201282D0 GB 0201282 A GB0201282 A GB 0201282A GB 0201282 D0 GB0201282 D0 GB 0201282D0
Authority
GB
United Kingdom
Prior art keywords
cryptosystem
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.)
Granted
Application number
GBGB0201282.1A
Other versions
GB2384406B (en
GB2384406A (en
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.)
YEUN HYUN K
Original Assignee
YEUN HYUN K
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 YEUN HYUN K filed Critical YEUN HYUN K
Priority to GB0201282A priority Critical patent/GB2384406B/en
Publication of GB0201282D0 publication Critical patent/GB0201282D0/en
Priority to PCT/GB2003/000202 priority patent/WO2003063410A1/en
Publication of GB2384406A publication Critical patent/GB2384406A/en
Application granted granted Critical
Publication of GB2384406B publication Critical patent/GB2384406B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H04L9/32—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
    • H04L9/321—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 a third party or a trusted authority
    • 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
    • H04L9/3013—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 discrete logarithm problem, e.g. ElGamal or Diffie-Hellman systems
    • 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
    • H04L9/32—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
    • 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
    • H04L9/3271—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 using challenge-response
GB0201282A 2002-01-21 2002-01-21 Cryptosystem Expired - Fee Related GB2384406B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
GB0201282A GB2384406B (en) 2002-01-21 2002-01-21 Cryptosystem
PCT/GB2003/000202 WO2003063410A1 (en) 2002-01-21 2003-01-21 Cryptosystem

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB0201282A GB2384406B (en) 2002-01-21 2002-01-21 Cryptosystem

Publications (3)

Publication Number Publication Date
GB0201282D0 true GB0201282D0 (en) 2002-03-06
GB2384406A GB2384406A (en) 2003-07-23
GB2384406B GB2384406B (en) 2004-05-12

Family

ID=9929429

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0201282A Expired - Fee Related GB2384406B (en) 2002-01-21 2002-01-21 Cryptosystem

Country Status (2)

Country Link
GB (1) GB2384406B (en)
WO (1) WO2003063410A1 (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0313666D0 (en) 2003-06-13 2003-07-16 Hewlett Packard Development Co RSA cryptographic method and system
JP2007521676A (en) * 2003-07-31 2007-08-02 トムソン ライセンシング Generation and verification of Diffie-Hellman digital signatures
US7930412B2 (en) 2003-09-30 2011-04-19 Bce Inc. System and method for secure access
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
GB2416283B (en) * 2004-07-15 2007-03-07 Hewlett Packard Development Co Trusted authority for identifier-based cryptography
GB2421407A (en) * 2004-12-18 2006-06-21 Hewlett Packard Development Co Generating a shared symmetric key using identifier based cryptography
EP1836792A1 (en) 2004-12-30 2007-09-26 BCE Inc. System and method for secure access
CN101052033B (en) * 2006-04-05 2012-04-04 华为技术有限公司 Certifying and key consulting method and its device based on TTP
WO2009070075A1 (en) * 2007-11-30 2009-06-04 Telefonaktiebolaget Lm Ericsson (Publ) Key management for secure communication
JP5746774B2 (en) * 2014-01-06 2015-07-08 テレフオンアクチーボラゲット エル エム エリクソン（パブル） Key management for secure communication

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6138236A (en) * 1996-07-01 2000-10-24 Sun Microsystems, Inc. Method and apparatus for firmware authentication
US6076163A (en) * 1997-10-20 2000-06-13 Rsa Security Inc. Secure user identification based on constrained polynomials
US7237114B1 (en) * 2000-04-26 2007-06-26 Pronvest, Inc. Method and system for signing and authenticating electronic documents

Also Published As

Publication number Publication date
WO2003063410A1 (en) 2003-07-31
GB2384406B (en) 2004-05-12
GB2384406A (en) 2003-07-23

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090121