NL8901323A - Werkwijze voor het vercijferen van een reeks telkens uit tenminste een symbool bestaande boodschappen. - Google Patents

Werkwijze voor het vercijferen van een reeks telkens uit tenminste een symbool bestaande boodschappen. Download PDF

Info

Publication number: NL8901323A
Authority: NL; Netherlands
Prior art keywords: series; bits; modulo; substitution; substitution table
Prior art date: 1989-05-26

Application number

NL8901323A

Other languages

English (en)

Dutch (nl)

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

1989-05-26

Publication date

1990-12-17

1989-05-26 Application filed by Nederland Ptt filed Critical Nederland Ptt

1989-05-26 Priority to NL8901323A priority Critical patent/NL8901323A/nl

1990-05-21 Priority to DE199090201136T priority patent/DE399587T1/de

1990-05-21 Priority to EP90201136A priority patent/EP0399587B1/en

1990-05-21 Priority to DK90201136.0T priority patent/DK0399587T3/da

1990-05-21 Priority to DE69006774T priority patent/DE69006774T2/de

1990-05-21 Priority to ES90201136T priority patent/ES2019572T3/es

1990-05-21 Priority to AT90201136T priority patent/ATE101950T1/de

1990-05-24 Priority to FI902591A priority patent/FI108324B/fi

1990-05-25 Priority to NO902337A priority patent/NO303610B1/no

1990-12-17 Publication of NL8901323A publication Critical patent/NL8901323A/nl

1991-10-10 Priority to GR90300193T priority patent/GR900300193T1/el

Links

238000000034 method Methods 0.000 title claims description 26
238000006467 substitution reaction Methods 0.000 claims abstract description 54
238000007792 addition Methods 0.000 claims 7
230000009022 nonlinear effect Effects 0.000 abstract description 8
230000008901 benefit Effects 0.000 abstract description 4
230000015654 memory Effects 0.000 description 5
230000009021 linear effect Effects 0.000 description 4
230000006870 function Effects 0.000 description 3
230000003068 static effect Effects 0.000 description 2
238000004364 calculation method Methods 0.000 description 1
230000007423 decrease Effects 0.000 description 1
230000001419 dependent effect Effects 0.000 description 1
238000012163 sequencing technique Methods 0.000 description 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)
Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
Facsimile Transmission Control (AREA)
Signal Processing For Digital Recording And Reproducing (AREA)
Peptides Or Proteins (AREA)
Optical Communication System (AREA)
Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Electrically Operated Instructional Devices (AREA)
Emergency Protection Circuit Devices (AREA)
Measuring Volume Flow (AREA)

NL8901323A 1989-05-26 1989-05-26 Werkwijze voor het vercijferen van een reeks telkens uit tenminste een symbool bestaande boodschappen. NL8901323A (nl)

Priority Applications (10)

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.
DE199090201136T DE399587T1 (de)	1989-05-26	1990-05-21	Verfahren zum verschluesseln von nachrichten, welche jeweils aus einer reihe von mindestens einem symbol bestehen.
EP90201136A EP0399587B1 (en)	1989-05-26	1990-05-21	Method for enciphering a series consisting of at least one symbol
DK90201136.0T DK0399587T3 (da)	1989-05-26	1990-05-21	Fremgangsmåde til kodning af meddelelser, der hver gang består af en række af mindst et symbol
DE69006774T DE69006774T2 (de)	1989-05-26	1990-05-21	Verfahren zum Verschlüsseln einer Folge, die aus mindestens einem Symbol besteht.
ES90201136T ES2019572T3 (es)	1989-05-26	1990-05-21	Procedimiento para cifrar una serie consistente en al menos un simbolo.
AT90201136T ATE101950T1 (de)	1989-05-26	1990-05-21	Verfahren zum verschluesseln einer folge, die aus mindestens einem symbol besteht.
FI902591A FI108324B (fi)	1989-05-26	1990-05-24	Menetelmä kulloinkin ainakin yhden symbolin sarjasta koostuvien sanomien koodaamiseksi
NO902337A NO303610B1 (no)	1989-05-26	1990-05-25	Forbedring ved kryptering av en melding
GR90300193T GR900300193T1 (en)	1989-05-26	1991-10-10	Method for enciphering messages each time consisting of a series of at least one symbol

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
NL8901323		1989-05-26
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
NL8901323A true NL8901323A (nl)	1990-12-17

Family

ID=19854718

Family Applications (1)

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

Country Status (9)

Country	Link
EP (1)	EP0399587B1 (da)
AT (1)	ATE101950T1 (da)
DE (2)	DE69006774T2 (da)
DK (1)	DK0399587T3 (da)
ES (1)	ES2019572T3 (da)
FI (1)	FI108324B (da)
GR (1)	GR900300193T1 (da)
NL (1)	NL8901323A (da)
NO (1)	NO303610B1 (da)

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
IL139935A (en)	1998-06-03	2005-06-19	Cryptography Res Inc	Des and other cryptographic processes with leak minimization for smartcards and other cryptosystems
EP1933496A3 (en) *	1998-06-03	2012-06-13	Cryptography Research Inc.	Improved DES and other cryptographic processes with leak minimization for smartcards and other cryptosystems
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 DE DE69006774T patent/DE69006774T2/de not_active Expired - Fee Related
- 1990-05-21 EP EP90201136A patent/EP0399587B1/en not_active Expired - Lifetime
- 1990-05-21 ES ES90201136T patent/ES2019572T3/es not_active Expired - Lifetime
- 1990-05-21 DE DE199090201136T patent/DE399587T1/de active Pending
- 1990-05-21 DK DK90201136.0T patent/DK0399587T3/da active
- 1990-05-21 AT AT90201136T patent/ATE101950T1/de not_active IP Right Cessation
- 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
ES2019572T3 (es)	1994-05-01
ATE101950T1 (de)	1994-03-15
NO902337D0 (no)	1990-05-25
DK0399587T3 (da)	1994-06-27
ES2019572A4 (es)	1991-07-01
FI108324B (fi)	2001-12-31
EP0399587B1 (en)	1994-02-23
EP0399587A1 (en)	1990-11-28
GR900300193T1 (en)	1991-10-10
FI902591A0 (fi)	1990-05-24
DE69006774T2 (de)	1994-08-11
DE399587T1 (de)	1991-02-28
NO902337L (no)	1990-11-27
DE69006774D1 (de)	1994-03-31

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Legal Events

Date	Code	Title	Description
1990-12-17	A1B	A search report has been drawn up
1995-05-01	BI	The patent application has been withdrawn