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

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Publication number
NL8901323A
NL8901323A NL8901323A NL8901323A NL8901323A NL 8901323 A NL8901323 A NL 8901323A NL 8901323 A NL8901323 A NL 8901323A NL 8901323 A NL8901323 A NL 8901323A NL 8901323 A NL8901323 A NL 8901323A
Authority
NL
Netherlands
Prior art keywords
series
bits
modulo
substitution
substitution table
Prior art date
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.)
Filing date
Publication date
Application filed by Nederland Ptt filed Critical Nederland Ptt
Priority to NL8901323A priority Critical patent/NL8901323A/nl
Priority to ES90201136T priority patent/ES2019572T3/es
Priority to DK90201136.0T priority patent/DK0399587T3/da
Priority to EP90201136A priority patent/EP0399587B1/en
Priority to DE69006774T priority patent/DE69006774T2/de
Priority to DE199090201136T priority patent/DE399587T1/de
Priority to AT90201136T priority patent/ATE101950T1/de
Priority to FI902591A priority patent/FI108324B/fi
Priority to NO902337A priority patent/NO303610B1/no
Publication of NL8901323A publication Critical patent/NL8901323A/nl
Priority to GR90300193T priority patent/GR900300193T1/el

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
    • H04L9/06—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)
  • Peptides Or Proteins (AREA)
  • Optical Communication System (AREA)
  • Measuring Volume Flow (AREA)
  • Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Electrically Operated Instructional Devices (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.
ES90201136T ES2019572T3 (es) 1989-05-26 1990-05-21 Procedimiento para cifrar una serie consistente en al menos un simbolo.
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
EP90201136A EP0399587B1 (en) 1989-05-26 1990-05-21 Method for enciphering a series consisting of at least one symbol
DE69006774T DE69006774T2 (de) 1989-05-26 1990-05-21 Verfahren zum Verschlüsseln einer Folge, die aus mindestens einem Symbol besteht.
DE199090201136T DE399587T1 (de) 1989-05-26 1990-05-21 Verfahren zum verschluesseln von nachrichten, welche jeweils aus einer reihe von mindestens einem symbol bestehen.
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
NL8901323A NL8901323A (nl) 1989-05-26 1989-05-26 Werkwijze voor het vercijferen van een reeks telkens uit tenminste een symbool bestaande boodschappen.
NL8901323 1989-05-26

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 (no)
AT (1) ATE101950T1 (no)
DE (2) DE399587T1 (no)
DK (1) DK0399587T3 (no)
ES (1) ES2019572T3 (no)
FI (1) FI108324B (no)
GR (1) GR900300193T1 (no)
NL (1) NL8901323A (no)
NO (1) NO303610B1 (no)

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 (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

Also Published As

Publication number Publication date
ES2019572A4 (es) 1991-07-01
NO902337D0 (no) 1990-05-25
FI108324B (fi) 2001-12-31
ATE101950T1 (de) 1994-03-15
DE69006774T2 (de) 1994-08-11
FI902591A0 (fi) 1990-05-24
ES2019572T3 (es) 1994-05-01
NO303610B1 (no) 1998-08-03
DE399587T1 (de) 1991-02-28
DE69006774D1 (de) 1994-03-31
NO902337L (no) 1990-11-27
GR900300193T1 (en) 1991-10-10
EP0399587B1 (en) 1994-02-23
DK0399587T3 (da) 1994-06-27
EP0399587A1 (en) 1990-11-28

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BI The patent application has been withdrawn