WO2007043002A3 - Improved security system - Google Patents

Improved security system Download PDF

Info

Publication number
WO2007043002A3
WO2007043002A3 PCT/IB2006/053705 IB2006053705W WO2007043002A3 WO 2007043002 A3 WO2007043002 A3 WO 2007043002A3 IB 2006053705 W IB2006053705 W IB 2006053705W WO 2007043002 A3 WO2007043002 A3 WO 2007043002A3
Authority
WO
WIPO (PCT)
Prior art keywords
security system
cryptographic
improved security
indication
source device
Prior art date
Application number
PCT/IB2006/053705
Other languages
French (fr)
Other versions
WO2007043002A2 (en
Inventor
Michael Epstein
Martin C Rosner
Original Assignee
Koninkl Philips Electronics Nv
Michael Epstein
Martin C Rosner
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 Koninkl Philips Electronics Nv, Michael Epstein, Martin C Rosner filed Critical Koninkl Philips Electronics Nv
Publication of WO2007043002A2 publication Critical patent/WO2007043002A2/en
Publication of WO2007043002A3 publication Critical patent/WO2007043002A3/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
    • H04L9/12—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
    • H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/06—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols the encryption apparatus using shift registers or memories for block-wise or stream coding, e.g. DES systems or RC4; Hash functions; Pseudorandom sequence generators
    • H04L9/0618—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation
    • H04L9/0637—Modes of operation, e.g. cipher block chaining [CBC], electronic codebook [ECB] or Galois/counter mode [GCM]
    • 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
    • H04L9/0891—Revocation or update of secret information, e.g. encryption key update or rekeying

Abstract

The invention relates to a method for use in a system comprising a source device and a sink device both configured to engage in a cryptographic protocol. The method ensures that the source device and the sink device remain synchronized. One of the devices transmits a message that provides an indication of the state of the cryptographic operations at that device. The indication may be provided as a cryptographic hash or CRC of at least some of the state variables of the cryptographic protocol that are maintained by that device.
PCT/IB2006/053705 2005-10-14 2006-10-10 Improved security system WO2007043002A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72695805P 2005-10-14 2005-10-14
US60/726,958 2005-10-14

Publications (2)

Publication Number Publication Date
WO2007043002A2 WO2007043002A2 (en) 2007-04-19
WO2007043002A3 true WO2007043002A3 (en) 2007-08-16

Family

ID=37917012

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2006/053705 WO2007043002A2 (en) 2005-10-14 2006-10-10 Improved security system

Country Status (1)

Country Link
WO (1) WO2007043002A2 (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7533422B2 (en) * 2004-07-09 2009-05-12 Cisco Technology, Inc. Platform independent zero footprint decompression
EP3350960A4 (en) * 2015-09-18 2019-05-08 Olympus Sky Technologies, S.A. Secure communications using organically derived synchronized processes
US10382208B2 (en) 2016-04-29 2019-08-13 Olympus Sky Technologies, S.A. Secure communications using organically derived synchronized processes
US10382196B2 (en) 2016-04-29 2019-08-13 Olympus Sky Technologies, S.A. System and method for secure communications based on locally stored values

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651261A (en) * 1964-08-06 1972-03-21 Patelhold Patentverwertung Message scrambling apparatus for use in pulsed signal transmission
EP1063811A1 (en) * 1999-06-22 2000-12-27 Hitachi Europe Limited Cryptographic apparatus and method
EP1094634A2 (en) * 1999-10-19 2001-04-25 Lucent Technologies Inc. Automatic resynchronization of crypto-sync information
US20040184605A1 (en) * 2003-03-13 2004-09-23 New Mexico Technical Research Foundation Information security via dynamic encryption with hash function
WO2006085283A1 (en) * 2005-02-09 2006-08-17 Koninklijke Philips Electronics N.V. High speed encryption and decryption

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3651261A (en) * 1964-08-06 1972-03-21 Patelhold Patentverwertung Message scrambling apparatus for use in pulsed signal transmission
EP1063811A1 (en) * 1999-06-22 2000-12-27 Hitachi Europe Limited Cryptographic apparatus and method
EP1094634A2 (en) * 1999-10-19 2001-04-25 Lucent Technologies Inc. Automatic resynchronization of crypto-sync information
US20040184605A1 (en) * 2003-03-13 2004-09-23 New Mexico Technical Research Foundation Information security via dynamic encryption with hash function
WO2006085283A1 (en) * 2005-02-09 2006-08-17 Koninklijke Philips Electronics N.V. High speed encryption and decryption

Also Published As

Publication number Publication date
WO2007043002A2 (en) 2007-04-19

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