EP1062755A2 - Neuartiges verfahren zur schlüsseleinführung mit faltung - Google Patents
Neuartiges verfahren zur schlüsseleinführung mit faltungInfo
- Publication number
- EP1062755A2 EP1062755A2 EP98937742A EP98937742A EP1062755A2 EP 1062755 A2 EP1062755 A2 EP 1062755A2 EP 98937742 A EP98937742 A EP 98937742A EP 98937742 A EP98937742 A EP 98937742A EP 1062755 A2 EP1062755 A2 EP 1062755A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- des
- round
- key
- bit
- multiplication
- 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.)
- Withdrawn
Links
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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
- H04L9/0625—Block ciphers, i.e. encrypting groups of characters of a plain text message using fixed encryption transformation with splitting of the data block into left and right halves, e.g. Feistel based algorithms, DES, FEAL, IDEA or KASUMI
-
- 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
- H04L9/0643—Hash functions, e.g. MD5, SHA, HMAC or f9 MAC
-
- 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
- H04L9/50—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols using hash chains, e.g. blockchains or hash trees
-
- 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
- H04L2209/04—Masking or blinding
-
- 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
-
- 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
- H04L2209/24—Key scheduling, i.e. generating round keys or sub-keys for block encryption
Landscapes
- Engineering & Computer Science (AREA)
- Computer Security & Cryptography (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Power Engineering (AREA)
- Storage Device Security (AREA)
Applications Claiming Priority (7)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IL12149997A IL121499A0 (en) | 1997-08-08 | 1997-08-08 | Methods and apparatus for protecting confidentiality of information |
| IL12150097 | 1997-08-08 | ||
| IL12150097A IL121500A0 (en) | 1997-08-08 | 1997-08-08 | Methods and apparatus for fast des encryption |
| IL12149997 | 1997-08-08 | ||
| IL12470598A IL124705A0 (en) | 1998-06-01 | 1998-06-01 | Methods and apparatus for fast block encryption |
| IL12470598 | 1998-06-01 | ||
| PCT/IL1998/000369 WO1999008411A2 (en) | 1997-08-08 | 1998-08-06 | New operation for key insertion with folding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1062755A2 true EP1062755A2 (de) | 2000-12-27 |
Family
ID=27271831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP98937742A Withdrawn EP1062755A2 (de) | 1997-08-08 | 1998-08-06 | Neuartiges verfahren zur schlüsseleinführung mit faltung |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP1062755A2 (de) |
| AU (1) | AU8644098A (de) |
| WO (1) | WO1999008411A2 (de) |
Families Citing this family (13)
| 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 |
| DE69935913T2 (de) | 1998-07-02 | 2008-01-10 | Cryptography Research Inc., San Francisco | Leckresistente aktualisierung eines indexierten kryptographischen schlüssels |
| TW556111B (en) * | 1999-08-31 | 2003-10-01 | Toshiba Corp | Extended key generator, encryption/decryption unit, extended key generation method, and storage medium |
| US7095858B2 (en) | 2001-05-10 | 2006-08-22 | Ranco Incorporated Of Delaware | System and method for securely upgrading firmware |
| DE10137458B4 (de) * | 2001-08-02 | 2008-08-14 | Systemonic Ag | Verfahren und Anordnung zur Umsetzung von Scrambler-Algorithmen in prozessorimplementierten Datenpfaden |
| ATE509442T1 (de) * | 2003-12-11 | 2011-05-15 | Irdeto Bv | Blockchiffriersystem unter verwendung von permutationen zum verbergen der kernchiffrierfunktion jeder verschlüsselungsrunde |
| US8171282B2 (en) * | 2007-11-15 | 2012-05-01 | International Business Machines Corporation | Encryption data integrity check with dual parallel encryption engines |
| US8098816B2 (en) | 2008-10-17 | 2012-01-17 | Qualcomm Incorporated | Apparatus and method for evaluating a cipher structure's resistance to cryptanalysis |
| US10142099B2 (en) | 2013-01-11 | 2018-11-27 | Qualcomm Incorporated | Method and apparatus for a computable, large, variable and secure substitution box |
| CN111752730B (zh) * | 2020-08-31 | 2020-12-04 | 网络通信与安全紫金山实验室 | 一种拟态调度判决方法、拟态调度器及可读存储介质 |
| CN112636899B (zh) * | 2020-09-21 | 2022-03-18 | 中国电子科技集团公司第三十研究所 | 一种轻量化s盒设计方法 |
| CN112511293B (zh) * | 2020-09-21 | 2022-03-18 | 中国电子科技集团公司第三十研究所 | 基于比特与运算的s盒参数化设计方法及存储介质 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3962539A (en) * | 1975-02-24 | 1976-06-08 | International Business Machines Corporation | Product block cipher system for data security |
| US5319705A (en) * | 1992-10-21 | 1994-06-07 | International Business Machines Corporation | Method and system for multimedia access control enablement |
| US5454039A (en) * | 1993-12-06 | 1995-09-26 | International Business Machines Corporation | Software-efficient pseudorandom function and the use thereof for encryption |
| US5623549A (en) * | 1995-01-30 | 1997-04-22 | Ritter; Terry F. | Cipher mechanisms with fencing and balanced block mixing |
| US5724428A (en) * | 1995-11-01 | 1998-03-03 | Rsa Data Security, Inc. | Block encryption algorithm with data-dependent rotations |
| US5838794A (en) * | 1996-01-11 | 1998-11-17 | Teledyne Electronic Technologies | Method and apparatus for inter-round mixing in iterated block substitution systems |
-
1998
- 1998-08-06 WO PCT/IL1998/000369 patent/WO1999008411A2/en not_active Application Discontinuation
- 1998-08-06 EP EP98937742A patent/EP1062755A2/de not_active Withdrawn
- 1998-08-06 AU AU86440/98A patent/AU8644098A/en not_active Abandoned
Non-Patent Citations (1)
| Title |
|---|
| See references of WO9908411A3 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1999008411A3 (en) | 2000-11-02 |
| AU8644098A (en) | 1999-03-01 |
| WO1999008411A2 (en) | 1999-02-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
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| 17P | Request for examination filed |
Effective date: 20000308 |
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| AK | Designated contracting states |
Kind code of ref document: A2 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE |
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| RIC1 | Information provided on ipc code assigned before grant |
Free format text: 7H 04L 9/28 A |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
|
| 18D | Application deemed to be withdrawn |
Effective date: 20040302 |