DK0877507T3 - Start to finish coding - Google Patents

Start to finish coding

Info

Publication number
DK0877507T3
DK0877507T3 DK98108118T DK98108118T DK0877507T3 DK 0877507 T3 DK0877507 T3 DK 0877507T3 DK 98108118 T DK98108118 T DK 98108118T DK 98108118 T DK98108118 T DK 98108118T DK 0877507 T3 DK0877507 T3 DK 0877507T3
Authority
DK
Denmark
Prior art keywords
code
private
subscriber
subscribers
private code
Prior art date
Application number
DK98108118T
Other languages
Danish (da)
Inventor
Stefan Kaliner
Original Assignee
T Mobile Deutschland Gmbh
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 T Mobile Deutschland Gmbh filed Critical T Mobile Deutschland Gmbh
Application granted granted Critical
Publication of DK0877507T3 publication Critical patent/DK0877507T3/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
    • H04L9/08—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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3006—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters
    • H04L9/302—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy underlying computational problems or public-key parameters involving the integer factorization problem, e.g. RSA or quadratic sieve [QS] schemes
    • 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
    • H04L2209/60—Digital content management, e.g. content distribution

Abstract

The method involves using a symmetrical encoding technique. The required private code is exchanged between the subscribers using an asymmetrical coding technique. One of the subscribers generates the private code, encodes it using the public part of the private code of the other subscriber. The code is then passed to the other subscriber over the communication system. The second subscriber decodes the transmitted encoded parameter using the private part of its code to obtain the private code.
DK98108118T 1997-05-05 1998-05-05 Start to finish coding DK0877507T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19718583A DE19718583C5 (en) 1997-05-05 1997-05-05 End-to-end encryption

Publications (1)

Publication Number Publication Date
DK0877507T3 true DK0877507T3 (en) 2008-01-28

Family

ID=7828433

Family Applications (1)

Application Number Title Priority Date Filing Date
DK98108118T DK0877507T3 (en) 1997-05-05 1998-05-05 Start to finish coding

Country Status (6)

Country Link
EP (1) EP0877507B1 (en)
AT (1) ATE374477T1 (en)
DE (2) DE19718583C5 (en)
DK (1) DK0877507T3 (en)
ES (1) ES2294807T3 (en)
PT (1) PT877507E (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10141396A1 (en) * 2001-08-23 2003-03-13 Deutsche Telekom Ag Method for generating an asymmetric cryptographic group key

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5142578A (en) * 1991-08-22 1992-08-25 International Business Machines Corporation Hybrid public key algorithm/data encryption algorithm key distribution method based on control vectors
US5481613A (en) * 1994-04-15 1996-01-02 Northern Telecom Limited Computer network cryptographic key distribution system

Also Published As

Publication number Publication date
DE19718583C2 (en) 1999-05-27
PT877507E (en) 2008-01-03
DE19718583C5 (en) 2007-04-26
EP0877507A3 (en) 2000-07-12
EP0877507B1 (en) 2007-09-26
DE19718583A1 (en) 1998-11-12
DE59814097D1 (en) 2007-11-08
ES2294807T3 (en) 2008-04-01
ATE374477T1 (en) 2007-10-15
EP0877507A2 (en) 1998-11-11

Similar Documents

Publication Publication Date Title
ATE331391T1 (en) VIDEO CODING
ID17541A (en) SATELLITE COMMUNICATION SYSTEM USING PARARALEL CODING CODES
PT1346557E (en) Method and system for establishing a multimedia connection by negotiating capability in an outband control channel
MY140227A (en) Picture coding method
SE0104059L (en) Lågbittaktskodek
WO2000007319A3 (en) Optical cdma system using sub-band coding
HK1082850A1 (en) Method for code combining at an outer decoder on a communication system
EP1357691A3 (en) A method for encoding a user identifier in a communication system
MXPA03003512A (en) Image encoding method, image decoding method, and apparatus thereof.
DK0877507T3 (en) Start to finish coding
DE69924861D1 (en) DIGITAL COMMUNICATION SYSTEM
FI20010532A (en) Test loops for channel codec
DE60214835D1 (en) VIDEO CODING METHOD AND DEVICE
ATE204327T1 (en) TYROSINASE ACTIVATOR-TYROSINASE FUSION ENZYME
CA2351682A1 (en) Code-based optical networks, methods, and apparatus
ATE362282T1 (en) METHOD FOR TRANSMITTING DIGITAL USEFUL DATA
DE602005005763D1 (en) Coding and multiplexing of video telephony data for mobile communication devices
DK1040676T3 (en) Method and system for transmitting and modifying intelligent network parameters
ATE265792T1 (en) METHOD FOR TRANSMITTING CODED VOICE SIGNALS IN AT LEAST ONE TELECOMMUNICATIONS NETWORK
WO1998007284A3 (en) Transcoder and method for a non-tandem coding operation
ID24919A (en) TERMINAL METHODS TO PROVIDE SERVICE IN TELECOMMUNICATION NETWORKS
DE69739223D1 (en) ODEN AND APPLICATIONS
DE59914035D1 (en) Method for encrypting data
CA2351713A1 (en) Codes, methods, and apparatus for optical encoding and decoding
HU9300598D0 (en) Small public telephone network commutator functioning by means of impulse code modulation coupling