BRPI0418366A - sistema e método para gerar chaves de sessão reproduzìveis - Google Patents

sistema e método para gerar chaves de sessão reproduzìveis

Info

Publication number
BRPI0418366A
BRPI0418366A BRPI0418366-5A BRPI0418366A BRPI0418366A BR PI0418366 A BRPI0418366 A BR PI0418366A BR PI0418366 A BRPI0418366 A BR PI0418366A BR PI0418366 A BRPI0418366 A BR PI0418366A
Authority
BR
Brazil
Prior art keywords
message
generating
session keys
session key
hash
Prior art date
Application number
BRPI0418366-5A
Other languages
English (en)
Inventor
Michael Kenneth Brown
Michael Stephien Brown
Herbert Anthony Little
Original Assignee
Research In Motion 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 Research In Motion Ltd filed Critical Research In Motion Ltd
Publication of BRPI0418366A publication Critical patent/BRPI0418366A/pt
Publication of BRPI0418366B1 publication Critical patent/BRPI0418366B1/pt

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
    • H04L9/0819—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s)
    • H04L9/0825—Key transport or distribution, i.e. key establishment techniques where one party creates or otherwise obtains a secret value, and securely transfers it to the other(s) using asymmetric-key encryption or public key infrastructure [PKI], e.g. key signature or public key certificates
    • 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
    • H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
    • 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
    • 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)
  • Computing Systems (AREA)
  • Theoretical Computer Science (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Computer And Data Communications (AREA)
  • Electrodes Of Semiconductors (AREA)
  • Telephonic Communication Services (AREA)
  • Storage Device Security (AREA)

Abstract

SISTEMA E MéTODO PARA GERAR CHAVES DE SESSãO REPRODUZìVEIS Um sistema e um método para chaves de sessão reproduzíveis em um sistema de mensagens sem fio. A chave de sessão é gerada com base em uma totalização aleatória (hash) da própria mensagem, opcionalmente concatenada com informação adicional. Como o servidor local armazena a mensagem, ele pode facilmente regenerar a mesma chave de sessão em resposta a cada solicitação MORE. O método da invenção pode ser implementado com a mensagem original armazenada, uma chave pública, e um algoritmo para gerar a chave de sessão com base em uma totalização aleatória da mensagem.
BRPI0418366-5A 2004-05-03 2004-11-26 Sistema e método para gerar chaves de sessão reproduzíveis BRPI0418366B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US56761104P 2004-05-03 2004-05-03
US60/567,611 2004-05-03
PCT/CA2004/002043 WO2005107140A1 (en) 2004-05-03 2004-11-26 System and method for generating reproducible session keys

Publications (2)

Publication Number Publication Date
BRPI0418366A true BRPI0418366A (pt) 2007-05-15
BRPI0418366B1 BRPI0418366B1 (pt) 2018-04-10

Family

ID=35242003

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0418366-5A BRPI0418366B1 (pt) 2004-05-03 2004-11-26 Sistema e método para gerar chaves de sessão reproduzíveis

Country Status (11)

Country Link
US (1) US7929702B2 (pt)
EP (1) EP1741224B1 (pt)
JP (1) JP4570626B2 (pt)
KR (1) KR100734836B1 (pt)
CN (1) CN1871809B (pt)
AT (1) ATE417428T1 (pt)
AU (1) AU2004319170B2 (pt)
BR (1) BRPI0418366B1 (pt)
CA (1) CA2540720C (pt)
DE (1) DE602004018395D1 (pt)
WO (1) WO2005107140A1 (pt)

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Also Published As

Publication number Publication date
EP1741224A1 (en) 2007-01-10
AU2004319170A1 (en) 2005-11-10
CN1871809B (zh) 2011-04-06
CA2540720C (en) 2010-08-10
EP1741224B1 (en) 2008-12-10
AU2004319170B2 (en) 2008-05-01
WO2005107140A1 (en) 2005-11-10
CN1871809A (zh) 2006-11-29
BRPI0418366B1 (pt) 2018-04-10
JP2007521772A (ja) 2007-08-02
US7929702B2 (en) 2011-04-19
KR100734836B1 (ko) 2007-07-06
JP4570626B2 (ja) 2010-10-27
KR20060086969A (ko) 2006-08-01
WO2005107140A8 (en) 2005-12-29
CA2540720A1 (en) 2005-11-10
US20050254658A1 (en) 2005-11-17
EP1741224A4 (en) 2007-08-01
ATE417428T1 (de) 2008-12-15
DE602004018395D1 (de) 2009-01-22

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved

Owner name: BLACKBERRY LIMITED (CA)

B25G Requested change of headquarter approved

Owner name: BLACKBERRY LIMITED (CA)

B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 10/04/2018, OBSERVADAS AS CONDICOES LEGAIS.