ES2078178R - - Google Patents
Info
- Publication number
- ES2078178R ES2078178R ES9302742A ES9302742A ES2078178R ES 2078178 R ES2078178 R ES 2078178R ES 9302742 A ES9302742 A ES 9302742A ES 9302742 A ES9302742 A ES 9302742A ES 2078178 R ES2078178 R ES 2078178R
- Authority
- ES
- Spain
- Prior art keywords
- displacement
- encryption
- records
- cycle
- during
- Prior art date
- Legal status (The legal status 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 status listed.)
- Granted
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
- H04L9/065—Encryption by serially and continuously modifying data stream elements, e.g. stream cipher systems, RC4, SEAL or A5/3
- H04L9/0656—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher
- H04L9/0662—Pseudorandom key sequence combined element-for-element with data sequence, e.g. one-time-pad [OTP] or Vernam's cipher with particular pseudorandom sequence generator
-
- 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
- H04L2209/125—Parallelization or pipelining, e.g. for accelerating processing of cryptographic operations
-
- 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
- H04L2209/80—Wireless
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Storage Device Security (AREA)
Abstract
DISPOSITIVO DE CIFRADO DE DATOS. DE ESPECIAL APLICACION EN LA IMPLEMENTACION DEL ALGORITMO DE CIFRADO DE DATOS ESTANDAR DE DECT QUE REQUIERE UN PROCESO LARGO DE CARGA DE CLAVES Y CALCULOS LOGICOS DURANTE LAS FASES DE PRECIFRADO Y CIFRADO QUE REQUIEREN RELOJES DE DISTINTAS FRECUENCIAS. DICHO DISPOSITIVO REALIZA LA CARGA, CON UNA PALABRA CLAVE DE CIFRADO, DE LOS REGISTROS DE DESLAZAMIENTO EN MODO PARALELO. TAMBIEN CALCULA, DURANTE EL PRECIFRADO, EN UN PRIMER CICLO, LOS VALORES DE LOS BITIOS DE CADA REGISTRO DE DESPLAZAMIENTO QUE DETERMINAN EL VALOR DEL DESPLAZAMIENTO POSTERIOR PARA, EN UN SEGUNDO CICLO, REALIZAR EL DESPLAZAMIENTO DE DICHOS REGISTROS, EN MODO PARALELO, DE UN VALOR IGUAL A LA SUMA DE LOS DOS VALORES DE DESPLAZAMIENTO ANTERIORES. DURANTE EL PROCESO DE CIFRADO SE REALIZA, EN MODO PARALELO Y EN UN SOLO CICLO DE RELOJ DE DATOS, EL DESPLAZAMIENTO DE LOS REGISTROS QUE ES EQUIVALENTE AL VALOR SERIE OBTENIDO POR EL ALGORITMO.
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09302742A ES2078178B1 (es) | 1993-12-31 | 1993-12-31 | Dispositivo de cifrado de datos. |
AU80296/94A AU687460B2 (en) | 1993-12-31 | 1994-12-07 | Data ciphering device |
NZ270096A NZ270096A (en) | 1993-12-31 | 1994-12-08 | Data enciphering device: parallel mode loading of shift registers |
EP94119371A EP0661843A3 (en) | 1993-12-31 | 1994-12-08 | Device for implentation of DECT encryption algorithm with reduced current consumption |
US08/364,126 US5608802A (en) | 1993-12-31 | 1994-12-27 | Data ciphering device |
FI946206A FI946206A (fi) | 1993-12-31 | 1994-12-30 | Datansalauslaite |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ES09302742A ES2078178B1 (es) | 1993-12-31 | 1993-12-31 | Dispositivo de cifrado de datos. |
Publications (3)
Publication Number | Publication Date |
---|---|
ES2078178A2 ES2078178A2 (es) | 1995-12-01 |
ES2078178R true ES2078178R (es) | 1997-05-16 |
ES2078178B1 ES2078178B1 (es) | 1998-02-01 |
Family
ID=8284095
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES09302742A Expired - Lifetime ES2078178B1 (es) | 1993-12-31 | 1993-12-31 | Dispositivo de cifrado de datos. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5608802A (es) |
EP (1) | EP0661843A3 (es) |
AU (1) | AU687460B2 (es) |
ES (1) | ES2078178B1 (es) |
FI (1) | FI946206A (es) |
NZ (1) | NZ270096A (es) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5844989A (en) * | 1995-06-05 | 1998-12-01 | Matsushita Electric Industrial Co., Ltd. | Data scrambling method, data scrambling apparatus, data descrambling method, and data descrambling apparatus |
US5966447A (en) * | 1996-06-04 | 1999-10-12 | Matsushita Electric Industrial Co., Ltd. | Data scrambling method, data scrambling apparatus, data descrambling method, and data descrambling apparatus |
US6041123A (en) * | 1996-07-01 | 2000-03-21 | Allsoft Distributing Incorporated | Centralized secure communications system |
US5841872A (en) * | 1996-07-01 | 1998-11-24 | Allsoft Distributing Incorporated | Encryption enhancement system |
US6201870B1 (en) * | 1997-03-20 | 2001-03-13 | Massachusetts Institue Of Technology | Pseudorandom noise sequence generator |
US6687376B1 (en) * | 1998-12-29 | 2004-02-03 | Texas Instruments Incorporated | High-speed long code generation with arbitrary delay |
AU2000263273A1 (en) * | 2000-04-10 | 2001-10-23 | Anatoly Viktorovich Klepov | Method for cryptographic protection of information in information technology anda device for performing said method |
KR100384873B1 (ko) * | 2000-05-26 | 2003-05-22 | 주식회사 하이닉스반도체 | 데이터 암호화 표준 알고리즘을 이용한 암호화 장치 |
US7502463B2 (en) * | 2000-12-13 | 2009-03-10 | Broadcom Corporation | Methods and apparatus for implementing a cryptography engine |
US7142671B2 (en) | 2000-12-13 | 2006-11-28 | Broadcom Corporation | Methods and apparatus for implementing a cryptography engine |
US7366300B2 (en) * | 2000-12-13 | 2008-04-29 | Broadcom Corporation | Methods and apparatus for implementing a cryptography engine |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH580893A5 (es) * | 1973-07-02 | 1976-10-15 | Gretag Ag | |
DE2706421C2 (de) * | 1977-02-16 | 1979-03-15 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Verfahren zum Einstellen von Schlüsseltextgeneratoren in Chiffriergeräten |
US4668103A (en) * | 1982-04-30 | 1987-05-26 | Wilson William J | Polygraphic encryption-decryption communications system |
JPH0727325B2 (ja) * | 1987-02-13 | 1995-03-29 | 沖電気工業株式会社 | 暗号化装置 |
FR2619976A1 (fr) * | 1987-09-01 | 1989-03-03 | Mouly Michel | Generateur de sequence de caractere pseudo-aleatoire de grande longueur |
US4860353A (en) * | 1988-05-17 | 1989-08-22 | General Instrument Corporation | Dynamic feedback arrangement scrambling technique keystream generator |
US5008938A (en) * | 1990-03-09 | 1991-04-16 | Motorola, Inc. | Encryption apparatus |
US5195136A (en) * | 1991-09-30 | 1993-03-16 | Motorola, Inc. | Method and apparatus for data encryption or decryption |
-
1993
- 1993-12-31 ES ES09302742A patent/ES2078178B1/es not_active Expired - Lifetime
-
1994
- 1994-12-07 AU AU80296/94A patent/AU687460B2/en not_active Ceased
- 1994-12-08 NZ NZ270096A patent/NZ270096A/en unknown
- 1994-12-08 EP EP94119371A patent/EP0661843A3/en not_active Withdrawn
- 1994-12-27 US US08/364,126 patent/US5608802A/en not_active Expired - Fee Related
- 1994-12-30 FI FI946206A patent/FI946206A/fi unknown
Also Published As
Publication number | Publication date |
---|---|
AU8029694A (en) | 1995-07-13 |
EP0661843A3 (en) | 1999-11-10 |
AU687460B2 (en) | 1998-02-26 |
US5608802A (en) | 1997-03-04 |
EP0661843A2 (en) | 1995-07-05 |
FI946206A (fi) | 1995-07-01 |
ES2078178A2 (es) | 1995-12-01 |
ES2078178B1 (es) | 1998-02-01 |
FI946206A0 (fi) | 1994-12-30 |
NZ270096A (en) | 1996-12-20 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
ES2078178B1 (es) | Dispositivo de cifrado de datos. | |
Linial et al. | Constant depth circuits, Fourier transform, and learnability | |
Garsia et al. | Shuffles of permutations and the Kronecker product | |
Stembridge | Some permutation representations of Weyl groups associated with the cohomology of toric varieties | |
Bagger et al. | The tensor Goldstone multiplet for partially broken supersymmetry | |
Everest et al. | An introduction to number theory | |
US5199073A (en) | Key hashing in data processors | |
Knuth | Deciphering a linear congruential encryption | |
JPH0727458B2 (ja) | 乗算器 | |
CA1146281A (en) | Data hashing method and apparatus | |
Leiserson et al. | Using de Bruijn sequences to index a 1 in a computer word | |
Osofsky | On Ring Properties of Injective Hulls1 | |
Laffey | A finiteness theorem for rings | |
Leclerc et al. | Noncommutative cyclic characters of symmetric groups | |
Frieder et al. | Algorithms for binary coded balanced and ordinary ternary operations | |
WO2003096180A3 (en) | Fast multiplication circuits | |
Lehmer | Number theory on the SWAC | |
CA1252213A (en) | Digital signal processor with divide function | |
Hodges | 𝐾-theory and right ideal class groups for HNP rings | |
ES1026016U (es) | Recipiente perfeccionado para bebidas. | |
Stafford | Dimensions of division rings | |
Molluzzo et al. | A first course in discrete mathematics | |
Schurle | A new property equivalent to Lebesgue integrability | |
Cohn | The general solution of a first order differential polynomial | |
Wang et al. | Nilpotent symmetric dessins of class two |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
EC2A | Search report published |
Date of ref document: 19951201 Kind code of ref document: R Effective date: 19951201 |