CA2045931A1 - Encryption with selective disclosure of protocol identifiers - Google Patents

Encryption with selective disclosure of protocol identifiers

Info

Publication number
CA2045931A1
CA2045931A1 CA2045931A CA2045931A CA2045931A1 CA 2045931 A1 CA2045931 A1 CA 2045931A1 CA 2045931 A CA2045931 A CA 2045931A CA 2045931 A CA2045931 A CA 2045931A CA 2045931 A1 CA2045931 A1 CA 2045931A1
Authority
CA
Canada
Prior art keywords
protocol
packet
subnetwork
identity
identifier
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CA2045931A
Other languages
French (fr)
Other versions
CA2045931C (en
Inventor
Amar Gupta
Charles W. Kaufman
Mark F. Kempf
G. Paul Koning
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Digital Equipment Corp
Original Assignee
Digital Equipment Corp
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 Digital Equipment Corp filed Critical Digital Equipment Corp
Publication of CA2045931A1 publication Critical patent/CA2045931A1/en
Application granted granted Critical
Publication of CA2045931C publication Critical patent/CA2045931C/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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
    • 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
    • H04L63/12—Applying verification of the received information
    • 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
    • H04L9/40—Network security protocols
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2212/00—Encapsulation of packets

Abstract

ENCRYPTION WITH SELECTIVE
DISCLOSURE OF PROTOCOL IDENTIFIERS

A method for selective disclosure of the identity of a communication protocol under which an information packet originated, but without incorrectly identifying the protocol in a header accompanying the packet. If there is a need to conceal the identity of the underlying source protocol, a special anonymous protocol identifier is used, instead of the real proto-col identifier, in the header of an encrypted informa-tion packet. Network monitors can then still provide accurate information concerning traffic on the network, without having this information distorted by the use of incorrect communication protocols. If there is a desire to reveal the underlying protocol, a subnetwork proto-col frame format is used to store the protocol identity and signify whether the packet is encrypted. A packet that is of a non-subnetwork protocol can be encapsu-lated with a subnetwork header containing a special code signifying that there is an encapsulated packet and containing the original protocol identifier.
CA002045931A 1990-06-29 1991-06-28 Encryption with selective disclosure of protocol identifiers Expired - Fee Related CA2045931C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US07/546,615 US5086469A (en) 1990-06-29 1990-06-29 Encryption with selective disclosure of protocol identifiers
US07/546,615 1990-06-29

Publications (2)

Publication Number Publication Date
CA2045931A1 true CA2045931A1 (en) 1991-12-30
CA2045931C CA2045931C (en) 1994-03-29

Family

ID=24181222

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002045931A Expired - Fee Related CA2045931C (en) 1990-06-29 1991-06-28 Encryption with selective disclosure of protocol identifiers

Country Status (4)

Country Link
US (1) US5086469A (en)
EP (1) EP0464563B1 (en)
CA (1) CA2045931C (en)
DE (1) DE69125757T2 (en)

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US7712673B2 (en) 2002-12-18 2010-05-11 L-L Secure Credentialing, Inc. Identification document with three dimensional image of bearer
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Also Published As

Publication number Publication date
US5086469A (en) 1992-02-04
EP0464563A2 (en) 1992-01-08
CA2045931C (en) 1994-03-29
DE69125757D1 (en) 1997-05-28
DE69125757T2 (en) 1997-12-18
EP0464563A3 (en) 1992-11-04
EP0464563B1 (en) 1997-04-23

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