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GR1005832B - Method of establishing strong keys and securing communications between wireless and other devices. - Google Patents

Method of establishing strong keys and securing communications between wireless and other devices.

Info

Publication number
GR1005832B
GR1005832B GR20070100303A GR20070100303A GR1005832B GR 1005832 B GR1005832 B GR 1005832B GR 20070100303 A GR20070100303 A GR 20070100303A GR 20070100303 A GR20070100303 A GR 20070100303A GR 1005832 B GR1005832 B GR 1005832B
Authority
GR
Greece
Prior art keywords
parties
common
key
devices
secure
Prior art date
Application number
GR20070100303A
Other languages
Greek (el)
Inventor
Περσεφονη Λαππα
Original Assignee
Περσεφονη Λαππα
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 Περσεφονη Λαππα filed Critical Περσεφονη Λαππα
Priority to GR20070100303A priority Critical patent/GR1005832B/en
Publication of GR1005832B publication Critical patent/GR1005832B/en

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
    • H04L9/08—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
    • H04L9/0844—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 with user authentication or key authentication, e.g. ElGamal, MTI, MQV-Menezes-Qu-Vanstone protocol or Diffie-Hellman protocols using implicitly-certified keys
    • 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
    • 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
    • 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
    • H04L2209/80—Wireless

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The present invention provides a secure method for establishing cryptographic keys based on a Diffie-Hellman type of key exchange that can be used by two parties (devices, entities, etc.) to secure their in-between communications. The method uses commitments and older secrets for creating a sense of "continuity" with older attempts of communication (session/key continuity). The computation of the common Diffie-Hellman key is performed only after successful authentications take place. Then, the two parties verify the common secret using some secondary channel, such as for example, voice verification. In addition to the above, a warning indicator is provided that warns users if a common secret was discovered by the protocol using some appropriate interface. If users have interacted in the past, they should share common secrets. If this is not the case, a person-in-the-middle attack is taking place even if authentication values happen to match. Overall, the previous measures reduce the danger of attcks thus creating an effective and secure method for communication between two parties.
GR20070100303A 2007-05-22 2007-05-22 Method of establishing strong keys and securing communications between wireless and other devices. GR1005832B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR20070100303A GR1005832B (en) 2007-05-22 2007-05-22 Method of establishing strong keys and securing communications between wireless and other devices.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20070100303A GR1005832B (en) 2007-05-22 2007-05-22 Method of establishing strong keys and securing communications between wireless and other devices.

Publications (1)

Publication Number Publication Date
GR1005832B true GR1005832B (en) 2008-02-27

Family

ID=38819659

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20070100303A GR1005832B (en) 2007-05-22 2007-05-22 Method of establishing strong keys and securing communications between wireless and other devices.

Country Status (1)

Country Link
GR (1) GR1005832B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0768775A2 (en) * 1995-10-09 1997-04-16 Matsushita Electric Industrial Co., Ltd. Method and apparatus for mutual authentication according to the challenge/response principle
EP1134929A1 (en) * 2000-03-17 2001-09-19 Lucent Technologies Inc. Secure mutual network authentication and key exchange protocol
US20070076879A1 (en) * 2005-10-03 2007-04-05 Nokia Corporation System, method and computer program product for authenticating a data agreement between network entities

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0768775A2 (en) * 1995-10-09 1997-04-16 Matsushita Electric Industrial Co., Ltd. Method and apparatus for mutual authentication according to the challenge/response principle
EP1134929A1 (en) * 2000-03-17 2001-09-19 Lucent Technologies Inc. Secure mutual network authentication and key exchange protocol
US20070076879A1 (en) * 2005-10-03 2007-04-05 Nokia Corporation System, method and computer program product for authenticating a data agreement between network entities

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
BOYKO V ET AL: "PROVABLY SECURE PASSWORD-AUTHENTICATED KEY EXCHANGE USING DIFFIE-HELLMAN", ADVANCES IN CRYPTOLOGY - EUROCRYPT 2000. INTERNATIONAL CONF. ON THE THEORY AND APPLICATION OF CRYPTOGRAPHIC TECHNIQUES. BRUGES, BE, MAY 14, vol. VOL. 1807, 14 May 2000 (2000-05-14), pages 156 - 171, XP000896058, ISBN: 3-540-67517-5 *
JABLON D P: "STRONG PASSWORD-ONLY AUTHENTICATED KEY EXCHANGE", COMPUTER COMMUNICATION REVIEW, ACM, NEW YORK, NY, US, vol. 26, no. 5, October 1996 (1996-10-01), pages 5 - 26, XP000641968, ISSN: 0146-4833 *

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Legal Events

Date Code Title Description
PG Patent granted
ML Lapse due to non-payment of fees

Effective date: 20141203