BR9600772A - Processo de criptografaç~o segura de um bloco de texto claro em um bloco de dados de texto cifrado e sistema criptográfico - Google Patents

Processo de criptografaç~o segura de um bloco de texto claro em um bloco de dados de texto cifrado e sistema criptográfico

Info

Publication number
BR9600772A
BR9600772A BR9600772A BR9600772A BR9600772A BR 9600772 A BR9600772 A BR 9600772A BR 9600772 A BR9600772 A BR 9600772A BR 9600772 A BR9600772 A BR 9600772A BR 9600772 A BR9600772 A BR 9600772A
Authority
BR
Brazil
Prior art keywords
encryption process
ciphertext data
clear text
cryptographic system
block
Prior art date
Application number
BR9600772A
Other languages
English (en)
Inventor
Seppo Alanara
Thomas Berson
Original Assignee
Nokia Mobile Phones Ltd
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 Nokia Mobile Phones Ltd filed Critical Nokia Mobile Phones Ltd
Publication of BR9600772A publication Critical patent/BR9600772A/pt

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
    • 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
    • H04L2209/046—Masking or blinding of operations, operands or results of the 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
    • H04L2209/34—Encoding or coding, e.g. Huffman coding or error correction
    • 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
    • H04L2209/805—Lightweight hardware, e.g. radio-frequency identification [RFID] or sensor

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Security & Cryptography (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)
  • Lock And Its Accessories (AREA)
BR9600772A 1995-02-22 1996-02-16 Processo de criptografaç~o segura de um bloco de texto claro em um bloco de dados de texto cifrado e sistema criptográfico BR9600772A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/394,537 US5594797A (en) 1995-02-22 1995-02-22 Variable security level encryption

Publications (1)

Publication Number Publication Date
BR9600772A true BR9600772A (pt) 1997-12-23

Family

ID=23559374

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9600772A BR9600772A (pt) 1995-02-22 1996-02-16 Processo de criptografaç~o segura de um bloco de texto claro em um bloco de dados de texto cifrado e sistema criptográfico

Country Status (5)

Country Link
US (1) US5594797A (pt)
CN (1) CN1136738A (pt)
AR (1) AR000997A1 (pt)
BR (1) BR9600772A (pt)
CA (1) CA2168717C (pt)

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US6266411B1 (en) * 1997-04-14 2001-07-24 Lucent Technologies Inc. Method and apparatus for multiple-iteration CMEA encryption and decryption for improved security for wireless telephone messages
US6418224B1 (en) 1997-05-06 2002-07-09 Lucent Technologies Inc. Methods and apparatus for self-inverting multiple-iteration CMEA crypto-processing for improved security for wireless telephone messages
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US6876744B1 (en) * 1997-07-22 2005-04-05 Lucent Technologies Inc. Methods and apparatus for enhanced CMEA including a CMEA iteration preceded and followed by transformations and employing an involuntary lookup
BR9806124A (pt) * 1997-07-29 1999-08-31 Lucent Technologies Inc Métodos e aparelho para cmea otimizado empregando transformações otimizadas
US6035040A (en) * 1997-10-17 2000-03-07 Nortel Networks Corporation System and method for decryption in the symbol domain
FI111433B (fi) * 1998-01-29 2003-07-15 Nokia Corp Menetelmä tiedonsiirron salaamiseksi ja solukkoradiojärjestelmä
FI107669B (fi) 1998-02-13 2001-09-14 Nokia Mobile Phones Ltd Menetelmä ja järjestely tiedonsiirron salaamiseksi
FI981638A (fi) 1998-07-17 2000-01-18 Nokia Mobile Phones Ltd Menetelmä ja järjestely palvelun hallitsemiseksi matkaviestinjärjestelmässä
JP2000066586A (ja) * 1998-08-24 2000-03-03 Toshiba Corp データ処理装置及び通信システム並びに記録媒体
US7194092B1 (en) * 1998-10-26 2007-03-20 Microsoft Corporation Key-based secure storage
US6324288B1 (en) * 1999-05-17 2001-11-27 Intel Corporation Cipher core in a content protection system
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EP1089439A1 (en) * 1999-09-28 2001-04-04 TELEFONAKTIEBOLAGET L M ERICSSON (publ) Interleaver and method for interleaving an input data bit sequence using a coded storing of symbol and additional information
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CA2373432C (en) * 2000-03-09 2005-02-08 Mitsubishi Denki Kabushiki Kaisha Block cipher apparatus using auxiliary transformation
US7305092B2 (en) * 2000-12-19 2007-12-04 Qualcomm Incorporated Method and system to accelerate cryptographic functions for secure e-commerce applications
US6990119B2 (en) * 2001-02-07 2006-01-24 Qualcomm, Inc. Method and apparatus to facilitate a transparent service option transition
US20020169965A1 (en) * 2001-05-08 2002-11-14 Hale Douglas Lavell Clearance-based method for dynamically configuring encryption strength
US20040029562A1 (en) * 2001-08-21 2004-02-12 Msafe Ltd. System and method for securing communications over cellular networks
US20030056111A1 (en) * 2001-09-19 2003-03-20 Brizek John P. Dynamically variable security protocol
KR100456599B1 (ko) * 2002-11-12 2004-11-09 삼성전자주식회사 병렬 디이에스 구조를 갖는 암호 장치
US20040202329A1 (en) * 2003-04-11 2004-10-14 Samsung Electronics Co., Ltd. Method and system for providing broadcast service using encryption in a mobile communication system
US7827398B2 (en) * 2005-10-27 2010-11-02 Hewlett-Packard Company Method for offloading encryption and decryption of a message received at a message server to remote end devices
CN100594691C (zh) * 2007-10-09 2010-03-17 华中科技大学 Manet网络的数据传递加密方法
US8179999B2 (en) * 2008-08-08 2012-05-15 Nokia Corporation Decoding of blocks in radio communications
US9355279B1 (en) 2013-03-29 2016-05-31 Secturion Systems, Inc. Multi-tenancy architecture
US9798899B1 (en) 2013-03-29 2017-10-24 Secturion Systems, Inc. Replaceable or removable physical interface input/output module
US9317718B1 (en) 2013-03-29 2016-04-19 Secturion Systems, Inc. Security device with programmable systolic-matrix cryptographic module and programmable input/output interface
US9374344B1 (en) 2013-03-29 2016-06-21 Secturion Systems, Inc. Secure end-to-end communication system
US9524399B1 (en) * 2013-04-01 2016-12-20 Secturion Systems, Inc. Multi-level independent security architecture
US11283774B2 (en) 2015-09-17 2022-03-22 Secturion Systems, Inc. Cloud storage using encryption gateway with certificate authority identification
US10708236B2 (en) 2015-10-26 2020-07-07 Secturion Systems, Inc. Multi-independent level secure (MILS) storage encryption
US10411888B2 (en) 2016-07-08 2019-09-10 Microsoft Technology Licensing, Llc Cryptography method
US10469260B2 (en) 2016-07-08 2019-11-05 Microsoft Technology Licensing, Llc Multiple cryptographic key generation for two-way communication
US10433166B2 (en) 2016-07-08 2019-10-01 Microsoft Technology Licensing, Llc Cryptography using RF power measurement
US10560264B2 (en) 2016-11-08 2020-02-11 Microsoft Technology Licensing, Llc Cryptographic key creation using optical parameters
US11126356B2 (en) * 2018-09-14 2021-09-21 SeaPort, Inc. Methods and systems for customized encoding and decoding communications
RU2718953C1 (ru) * 2019-03-11 2020-04-15 ФЕДЕРАЛЬНОЕ ГОСУДАРСТВЕННОЕ КАЗЕННОЕ ВОЕННОЕ ОБРАЗОВАТЕЛЬНОЕ УЧРЕЖДЕНИЕ ВЫСШЕГО ОБРАЗОВАНИЯ "Военная академия Ракетных войск стратегического назначения имени Петра Великого" МИНИСТЕРСТВА ОБОРОНЫ РОССИЙСКОЙ ФЕДЕРАЦИИ Передатчик информационной и энергетической скрытности
WO2020186125A1 (en) 2019-03-13 2020-09-17 The Research Foundation For The State University Of New York Ultra low power core for lightweight encryption
CN115022000B (zh) * 2022-05-27 2023-12-01 北京交大微联科技有限公司 铁路信号系统的通信方法、装置及电子设备

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US5506889A (en) * 1994-09-30 1996-04-09 Motorola, Inc. Digital voice privacy apparatus and method

Also Published As

Publication number Publication date
CN1136738A (zh) 1996-11-27
CA2168717A1 (en) 1996-08-23
AR000997A1 (es) 1997-08-27
US5594797A (en) 1997-01-14
CA2168717C (en) 2005-06-28

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Legal Events

Date Code Title Description
FB34 Technical and formal requirements: requirement - article 34 of industrial property law
B07A Application suspended after technical examination (opinion) [chapter 7.1 patent gazette]
B15K Others concerning applications: alteration of classification

Free format text: ALTERADA A CLASSIFICACAO DE H04K 1/00 PARA INT. CL.8 - H04L 9/06, H04L 9/32

Ipc: H04L 9/06, H04L 9/32

B09B Patent application refused [chapter 9.2 patent gazette]

Free format text: INDEFERIDO COM BASE NO ARTIGO 8O COMBINADO COM O ARTIGO 13 DA LPI.