BRPI0414348A - segurança de mensagens - Google Patents

segurança de mensagens

Info

Publication number
BRPI0414348A
BRPI0414348A BRPI0414348-5A BRPI0414348A BRPI0414348A BR PI0414348 A BRPI0414348 A BR PI0414348A BR PI0414348 A BRPI0414348 A BR PI0414348A BR PI0414348 A BRPI0414348 A BR PI0414348A
Authority
BR
Brazil
Prior art keywords
terminal
seed
user
key
electronic message
Prior art date
Application number
BRPI0414348-5A
Other languages
English (en)
Inventor
Davin Peter
Original Assignee
Secured Email Goteborg Ab
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
Priority claimed from SE0302456A external-priority patent/SE527561C2/sv
Priority claimed from SE0400238A external-priority patent/SE0400238D0/xx
Application filed by Secured Email Goteborg Ab filed Critical Secured Email Goteborg Ab
Publication of BRPI0414348A publication Critical patent/BRPI0414348A/pt

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/04—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks
    • H04L63/0428—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload
    • H04L63/0442—Network architectures or network communication protocols for network security for providing a confidential data exchange among entities communicating through data packet networks wherein the data content is protected, e.g. by encrypting or encapsulating the payload wherein the sending and receiving network entities apply asymmetric encryption, i.e. different keys for encryption and decryption
    • 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
    • H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
    • 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
    • H04L9/12—Transmitting and receiving encryption devices synchronised or initially set up in a particular manner
    • 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
    • H04L2209/56—Financial cryptography, e.g. electronic payment or e-cash

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Computing Systems (AREA)
  • General Engineering & Computer Science (AREA)
  • Information Transfer Between Computers (AREA)
  • Data Exchanges In Wide-Area Networks (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

"SEGURANçA DE MENSAGENS". A presente invenção se refere a um método de transmitir uma mensagem eletrónica, preferivelmente uma mensagem eletrónica a partir de um primeiro usuário tendo um primeiro terminal para um segundo usuário tendo um segundo terminal, compreendendo as etapas de: transmitir a dita mensagem eletrónica em uma forma codificada pelo dito primeiro terminal, a dita mensagem eletrónica codificada sendo codificada por meio de uma chave gerada por um primeiro gerador de chave usando uma semente, fornecer uma vez o dito segundo usuário com a dita semente para gerar uma chave com um segundo gerador de chave fornecido no dito segundo terminal, fornecer a, e, armazenar a dita semente no dito segundo terminal, usando a dita semente pelo dito segundo terminal para gerar uma chave a cada vez que uma mensagem eletrónica codificada a partir do dito primeiro usuário para o dito segundo usuário é recebida, sincronizar um valor de contagem em cada terminal; e gerar a dita chave na base da dita semente e um valor de contagem em cada terminal, independentemente do outro terminal.
BRPI0414348-5A 2003-09-12 2004-09-13 segurança de mensagens BRPI0414348A (pt)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
US50225403P 2003-09-12 2003-09-12
SE0302456A SE527561C2 (sv) 2003-09-12 2003-09-12 Metod, system och datorprogram för kryptografisk kommunikation av elektroniska meddelanden
SE0400238A SE0400238D0 (sv) 2003-09-12 2004-02-04 Message security
PCT/SE2004/001314 WO2005027404A1 (en) 2003-09-12 2004-09-13 Message security

Publications (1)

Publication Number Publication Date
BRPI0414348A true BRPI0414348A (pt) 2006-11-14

Family

ID=34317277

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0414348-5A BRPI0414348A (pt) 2003-09-12 2004-09-13 segurança de mensagens

Country Status (8)

Country Link
EP (1) EP1665625A1 (pt)
KR (1) KR20070015359A (pt)
AU (1) AU2004303326B2 (pt)
BR (1) BRPI0414348A (pt)
CA (1) CA2538029A1 (pt)
IL (1) IL174176A (pt)
MX (1) MXPA06002729A (pt)
WO (1) WO2005027404A1 (pt)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8788350B2 (en) 2008-06-13 2014-07-22 Microsoft Corporation Handling payment receipts with a receipt store
AU2016203876B2 (en) * 2009-05-15 2018-05-10 Visa International Service Association Verification of portable consumer devices
US9165285B2 (en) 2010-12-08 2015-10-20 Microsoft Technology Licensing, Llc Shared attachments
US9137185B2 (en) 2011-04-28 2015-09-15 Microsoft Technology Licensing, Llc Uploading attachment to shared location and replacing with a link
US10552799B2 (en) 2011-04-28 2020-02-04 Microsoft Technology Licensing, Llc Upload of attachment and insertion of link into electronic messages
US11308449B2 (en) 2011-04-28 2022-04-19 Microsoft Technology Licensing, Llc Storing metadata inside file to reference shared version of file
US10185932B2 (en) 2011-05-06 2019-01-22 Microsoft Technology Licensing, Llc Setting permissions for links forwarded in electronic messages

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7120696B1 (en) * 2000-05-19 2006-10-10 Stealthkey, Inc. Cryptographic communications using pseudo-randomly generated cryptography keys
US7149308B1 (en) * 2000-11-13 2006-12-12 Stealthkey, Inc. Cryptographic communications using in situ generated cryptographic keys for conditional access

Also Published As

Publication number Publication date
MXPA06002729A (es) 2006-09-04
CA2538029A1 (en) 2005-03-24
IL174176A (en) 2011-11-30
IL174176A0 (en) 2006-08-01
KR20070015359A (ko) 2007-02-02
AU2004303326A1 (en) 2005-03-24
WO2005027404A1 (en) 2005-03-24
WO2005027404B1 (en) 2005-06-16
EP1665625A1 (en) 2006-06-07
AU2004303326B2 (en) 2009-02-19

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Legal Events

Date Code Title Description
B08F Application dismissed because of non-payment of annual fees [chapter 8.6 patent gazette]

Free format text: REFERENTE A 9A ANUIDADE.

B08K Patent lapsed as no evidence of payment of the annual fee has been furnished to inpi [chapter 8.11 patent gazette]

Free format text: REFERENTE AO DESPACHO 8.6 PUBLICADO NA RPI 2259 DE 22/04/2014.