ATE101950T1 - Verfahren zum verschluesseln einer folge, die aus mindestens einem symbol besteht. - Google Patents

Verfahren zum verschluesseln einer folge, die aus mindestens einem symbol besteht.

Info

Publication number: ATE101950T1
Authority: AT; Austria
Prior art keywords: bits; series; register; contents; good statistical
Prior art date: 1989-05-26

Application number

AT90201136T

Other languages

English (en)

Inventor

Jean Paul Boly

Gerrit Roelofsen

Original Assignee

Nederland Ptt

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.)

1989-05-26

Filing date

1990-05-21

Publication date

1994-03-15

1990-05-21 Application filed by Nederland Ptt filed Critical Nederland Ptt

1994-03-15 Application granted granted Critical

1994-03-15 Publication of ATE101950T1 publication Critical patent/ATE101950T1/de

Links

238000006467 substitution reaction Methods 0.000 abstract 5
230000008901 benefit Effects 0.000 abstract 2
230000009022 nonlinear effect Effects 0.000 abstract 1

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
- H04L9/06—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
- 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
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
- 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
- H04L2209/12—Details relating to cryptographic hardware or logic circuitry

Landscapes

Engineering & Computer Science (AREA)
Computer Security & Cryptography (AREA)
Computer Networks & Wireless Communication (AREA)
Signal Processing (AREA)
Storage Device Security (AREA)
Compression, Expansion, Code Conversion, And Decoders (AREA)
Mobile Radio Communication Systems (AREA)
Facsimile Transmission Control (AREA)
Signal Processing For Digital Recording And Reproducing (AREA)
Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Optical Communication System (AREA)
Peptides Or Proteins (AREA)
Electrically Operated Instructional Devices (AREA)
Emergency Protection Circuit Devices (AREA)
Measuring Volume Flow (AREA)
Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)

AT90201136T 1989-05-26 1990-05-21 Verfahren zum verschluesseln einer folge, die aus mindestens einem symbol besteht. ATE101950T1 (de)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
NL8901323A NL8901323A (nl)	1989-05-26	1989-05-26	Werkwijze voor het vercijferen van een reeks telkens uit tenminste een symbool bestaande boodschappen.

Publications (1)

Publication Number	Publication Date
ATE101950T1 true ATE101950T1 (de)	1994-03-15

Family

ID=19854718

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
AT90201136T ATE101950T1 (de)	1989-05-26	1990-05-21	Verfahren zum verschluesseln einer folge, die aus mindestens einem symbol besteht.

Country Status (9)

Country	Link
EP (1)	EP0399587B1 (de)
AT (1)	ATE101950T1 (de)
DE (2)	DE399587T1 (de)
DK (1)	DK0399587T3 (de)
ES (1)	ES2019572T3 (de)
FI (1)	FI108324B (de)
GR (1)	GR900300193T1 (de)
NL (1)	NL8901323A (de)
NO (1)	NO303610B1 (de)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US7587044B2 (en)	1998-01-02	2009-09-08	Cryptography Research, Inc.	Differential power analysis method and apparatus
US6278783B1 (en)	1998-06-03	2001-08-21	Cryptography Research, Inc.	Des and other cryptographic, processes with leak minimization for smartcards and other cryptosystems
EP1933496A3 (de) *	1998-06-03	2012-06-13	Cryptography Research Inc.	Verbessertes DES und andere kryptographische Verfahren mit Verlustminimierung für Chipkarten und andere Verschlüsselungssysteme
NL1011719C2 (nl)	1999-04-01	2000-10-03	Koninkl Kpn Nv	Werkwijze voor het met toepassing van een functie en een sleutel vercijferen van een reeks symbolen.
GB2450131B (en) *	2007-06-13	2009-05-06	Ingenia Holdings	Fuzzy Keys

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4301327A (en) *	1979-06-05	1981-11-17	Lee Lin Nan	Reduction of message redundancy by multiple substitution: a message preprocessing scheme for secure communications
NL8203737A (nl) *	1982-09-27	1984-04-16	Nederlanden Staat	Inrichting voor vercijfering van digitale signalen met een of meer des-schakelingen.
US4760599A (en) *	1985-11-07	1988-07-26	Nec Corporation	Data encryptor

1989
- 1989-05-26 NL NL8901323A patent/NL8901323A/nl not_active Application Discontinuation
1990
- 1990-05-21 EP EP90201136A patent/EP0399587B1/de not_active Expired - Lifetime
- 1990-05-21 DE DE199090201136T patent/DE399587T1/de active Pending
- 1990-05-21 DE DE69006774T patent/DE69006774T2/de not_active Expired - Fee Related
- 1990-05-21 AT AT90201136T patent/ATE101950T1/de not_active IP Right Cessation
- 1990-05-21 ES ES90201136T patent/ES2019572T3/es not_active Expired - Lifetime
- 1990-05-21 DK DK90201136.0T patent/DK0399587T3/da active
- 1990-05-24 FI FI902591A patent/FI108324B/fi active IP Right Grant
- 1990-05-25 NO NO902337A patent/NO303610B1/no unknown
1991
- 1991-10-10 GR GR90300193T patent/GR900300193T1/el unknown

Also Published As

Publication number	Publication date
NO303610B1 (no)	1998-08-03
EP0399587A1 (de)	1990-11-28
DE69006774T2 (de)	1994-08-11
ES2019572T3 (es)	1994-05-01
DE69006774D1 (de)	1994-03-31
FI902591A0 (fi)	1990-05-24
ES2019572A4 (es)	1991-07-01
GR900300193T1 (en)	1991-10-10
DE399587T1 (de)	1991-02-28
NO902337D0 (no)	1990-05-25
FI108324B (fi)	2001-12-31
NL8901323A (nl)	1990-12-17
EP0399587B1 (de)	1994-02-23
NO902337L (no)	1990-11-27
DK0399587T3 (da)	1994-06-27

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Legal Events

Date	Code	Title	Description
1994-12-15	UEP	Publication of translation of european patent specification
2009-02-15	REN	Ceased due to non-payment of the annual fee