FI108324B - Menetelmä kulloinkin ainakin yhden symbolin sarjasta koostuvien sanomien koodaamiseksi - Google Patents
Menetelmä kulloinkin ainakin yhden symbolin sarjasta koostuvien sanomien koodaamiseksi Download PDFInfo
- Publication number
- FI108324B FI108324B FI902591A FI902591A FI108324B FI 108324 B FI108324 B FI 108324B FI 902591 A FI902591 A FI 902591A FI 902591 A FI902591 A FI 902591A FI 108324 B FI108324 B FI 108324B
- Authority
- FI
- Finland
- Prior art keywords
- bits
- series
- bit
- substitution
- modulo
- Prior art date
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)
- Signal Processing For Digital Recording And Reproducing (AREA)
- Optical Communication System (AREA)
- Two-Way Televisions, Distribution Of Moving Picture Or The Like (AREA)
- Peptides Or Proteins (AREA)
- Facsimile Transmission Control (AREA)
- Electrically Operated Instructional Devices (AREA)
- Measuring Volume Flow (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Emergency Protection Circuit Devices (AREA)
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 (2)
Publication Number | Publication Date |
---|---|
FI902591A0 FI902591A0 (fi) | 1990-05-24 |
FI108324B true FI108324B (fi) | 2001-12-31 |
Family
ID=19854718
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FI902591A FI108324B (fi) | 1989-05-26 | 1990-05-24 | Menetelmä kulloinkin ainakin yhden symbolin sarjasta koostuvien sanomien koodaamiseksi |
Country Status (9)
Country | Link |
---|---|
EP (1) | EP0399587B1 (da) |
AT (1) | ATE101950T1 (da) |
DE (2) | DE399587T1 (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)
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 |
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 |
IL139935A (en) | 1998-06-03 | 2005-06-19 | Cryptography Res Inc | 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)
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 DE199090201136T patent/DE399587T1/de active Pending
- 1990-05-21 EP EP90201136A patent/EP0399587B1/en not_active Expired - Lifetime
- 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 |
---|---|
ES2019572A4 (es) | 1991-07-01 |
DE69006774T2 (de) | 1994-08-11 |
GR900300193T1 (en) | 1991-10-10 |
NO303610B1 (no) | 1998-08-03 |
ATE101950T1 (de) | 1994-03-15 |
NO902337D0 (no) | 1990-05-25 |
EP0399587B1 (en) | 1994-02-23 |
ES2019572T3 (es) | 1994-05-01 |
NO902337L (no) | 1990-11-27 |
DK0399587T3 (da) | 1994-06-27 |
NL8901323A (nl) | 1990-12-17 |
FI902591A0 (fi) | 1990-05-24 |
DE399587T1 (de) | 1991-02-28 |
DE69006774D1 (de) | 1994-03-31 |
EP0399587A1 (en) | 1990-11-28 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FG | Patent granted |
Owner name: KONINKLIJKE PTT NEDERLAND N.V. |