WO2017103226A8 - Improved system for key sharing - Google Patents

Improved system for key sharing Download PDF

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Publication number
WO2017103226A8
WO2017103226A8 PCT/EP2016/081604 EP2016081604W WO2017103226A8 WO 2017103226 A8 WO2017103226 A8 WO 2017103226A8 EP 2016081604 W EP2016081604 W EP 2016081604W WO 2017103226 A8 WO2017103226 A8 WO 2017103226A8
Authority
WO
WIPO (PCT)
Prior art keywords
sequence
mixing
network device
sum
private key
Prior art date
Application number
PCT/EP2016/081604
Other languages
French (fr)
Other versions
WO2017103226A1 (en
Inventor
Ludovicus Marinus Gerardus Maria Tolhuizen
Oscar Garcia Morchon
Ronald Rietman
Original Assignee
Koninklijke Philips N.V.
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 Koninklijke Philips N.V. filed Critical Koninklijke Philips N.V.
Publication of WO2017103226A1 publication Critical patent/WO2017103226A1/en
Publication of WO2017103226A8 publication Critical patent/WO2017103226A8/en

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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
    • H04L9/0838—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
    • H04L9/0841—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 Diffie-Hellman or related key agreement protocols
    • 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
    • H04L9/3093—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving Lattices or polynomial equations, e.g. NTRU scheme

Landscapes

  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Computer Security & Cryptography (AREA)
  • Pure & Applied Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Physics & Mathematics (AREA)
  • Mathematical Optimization (AREA)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Analysis (AREA)
  • General Physics & Mathematics (AREA)
  • Algebra (AREA)
  • Information Transfer Between Computers (AREA)
  • Storage Device Security (AREA)

Abstract

A first network device (300) arranged to determine a shared key with a second network device (350), the first network device comprising a private key processing unit (330) arranged to substitute a second identity number (η) into a sequence of mixing functions ({ϕ k |k = 0... α}) obtaining a sequence of mixing coefficients ({ϕ k (η)|k = 0... α}), compute the sum (A) of multiple products of a private key coefficient (G ξ , k ) of the sequence of private key coefficients with a corresponding mixing coefficient (ϕ k (η)) of the sequence of mixing coefficients, reduce the sum modulo the public global reduction integer (N), and derive the shared key from the reduced sum.
PCT/EP2016/081604 2015-12-17 2016-12-16 Improved system for key sharing WO2017103226A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP15200857 2015-12-17
EP15200857.9 2015-12-17

Publications (2)

Publication Number Publication Date
WO2017103226A1 WO2017103226A1 (en) 2017-06-22
WO2017103226A8 true WO2017103226A8 (en) 2018-02-01

Family

ID=54936852

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2016/081604 WO2017103226A1 (en) 2015-12-17 2016-12-16 Improved system for key sharing

Country Status (1)

Country Link
WO (1) WO2017103226A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108462579A (en) * 2018-05-23 2018-08-28 东南大学 A kind of method for distributing key based on cipher key matrix

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2017167741A1 (en) 2016-03-29 2017-10-05 Koninklijke Philips N.V. System and method for distribution of identity based key material and certificate
EP3367608A1 (en) 2017-02-28 2018-08-29 Koninklijke Philips N.V. Elliptic curve isogeny based key agreement protocol

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108462579A (en) * 2018-05-23 2018-08-28 东南大学 A kind of method for distributing key based on cipher key matrix
CN108462579B (en) * 2018-05-23 2020-12-25 东南大学 Key distribution method based on key matrix

Also Published As

Publication number Publication date
WO2017103226A1 (en) 2017-06-22

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