GR1005832B - Καθιερωση ισχυρων κρυπτογραφικων κλειδιων και εξασφαλιση των επικοινωνιων μεταξυ ασυρματων ή αλλων συσκευων - Google Patents

Καθιερωση ισχυρων κρυπτογραφικων κλειδιων και εξασφαλιση των επικοινωνιων μεταξυ ασυρματων ή αλλων συσκευων

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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
English (en)
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/el
Publication of GR1005832B publication Critical patent/GR1005832B/el

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

Η παρούσα εφεύρεση παρέχει μια ασφαλή μέθοδο για τη δημιουργία κρυπτογραφικών κλειδιών κατά Diffie-Hellman που θα χρησιμοποιηθούν από δύο μέρη (συσκευές, οντότητες, κ.λ.π.) για την εξασφάλιση των μεταξύ τους επικοινωνιών. Η μέθοδος χρησιμοποιεί κατάλληλες δεσμεύσεις (commitments) και παλαιότερα μυστικά για τη δημιουργία "συνεκτικότητας" ή "συνοχής" με προηγούμενες προσπάθειες επικοινωνίας (session - key continuity). Ο υπολογισμός του κοινού Diffie - Hellman μυστικού γίνεται αφού πρώτα έχουν προηγηθεί οι κατάλληλες επαληθεύσεις. Στη συνέχεια τα δύο μέρη πιστοποιούν το κοινό μυστικό με τη χρήση ενός δευτερεύοντος καναλιού, όπως για παράδειγμα, πιστοποίηση φωνής. Επιπλέον με τα παραπάνω, παρέχεται μια ένδειξη που προειδοποιεί τους χρήστες εάν ένα προηγούμενο κοινό μυστικό ανακαλύφθηκε καιλήφθηκε υπόψη από το πρωτόκολλο. Αν οι χρήστες είχαν επικοινωνήσει στο παρελθόν τότε θα πρέπει να μοιράζονται κοινά μυστικά. Αν αυτό δεν συμβαίνει, πιθανόν οι επικοινωνίες να βρίσκονται υπό την επήρειακάποιας επίθεσης. Συνολικά όλα τα παραπάνω μέτρα μειώνουν τον κίνδυνο επιθέσεων δημιουργώντας μία αποτελεσματική και ασφαλή μέθοδο επικοινωνίας μεταξύδύο μερών.
GR20070100303A 2007-05-22 2007-05-22 Καθιερωση ισχυρων κρυπτογραφικων κλειδιων και εξασφαλιση των επικοινωνιων μεταξυ ασυρματων ή αλλων συσκευων GR1005832B (el)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GR20070100303A GR1005832B (el) 2007-05-22 2007-05-22 Καθιερωση ισχυρων κρυπτογραφικων κλειδιων και εξασφαλιση των επικοινωνιων μεταξυ ασυρματων ή αλλων συσκευων

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GR20070100303A GR1005832B (el) 2007-05-22 2007-05-22 Καθιερωση ισχυρων κρυπτογραφικων κλειδιων και εξασφαλιση των επικοινωνιων μεταξυ ασυρματων ή αλλων συσκευων

Publications (1)

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

Family

ID=38819659

Family Applications (1)

Application Number Title Priority Date Filing Date
GR20070100303A GR1005832B (el) 2007-05-22 2007-05-22 Καθιερωση ισχυρων κρυπτογραφικων κλειδιων και εξασφαλιση των επικοινωνιων μεταξυ ασυρματων ή αλλων συσκευων

Country Status (1)

Country Link
GR (1) GR1005832B (el)

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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PG Patent granted
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Effective date: 20141203