DE60222052D1 - Verschlüsselung gesichert gegen Angriffe durch die Analyse der Leistungsaufnahme (DPA) - Google Patents

Verschlüsselung gesichert gegen Angriffe durch die Analyse der Leistungsaufnahme (DPA)

Info

Publication number
DE60222052D1
DE60222052D1 DE60222052T DE60222052T DE60222052D1 DE 60222052 D1 DE60222052 D1 DE 60222052D1 DE 60222052 T DE60222052 T DE 60222052T DE 60222052 T DE60222052 T DE 60222052T DE 60222052 D1 DE60222052 D1 DE 60222052D1
Authority
DE
Germany
Prior art keywords
dpa
analysis
power consumption
secured against
against attacks
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.)
Expired - Lifetime
Application number
DE60222052T
Other languages
English (en)
Other versions
DE60222052T2 (de
Inventor
Koichi Ito
Masahiko Takenaka
Naoya Torii
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Application granted granted Critical
Publication of DE60222052D1 publication Critical patent/DE60222052D1/de
Publication of DE60222052T2 publication Critical patent/DE60222052T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L9/00Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
    • H04L9/002Countermeasures against attacks on cryptographic mechanisms
    • H04L9/003Countermeasures against attacks on cryptographic mechanisms for power analysis, e.g. differential power analysis [DPA] or simple power analysis [SPA]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/04Masking or blinding
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04LTRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L2209/00Additional information or applications relating to cryptographic mechanisms or cryptographic arrangements for secret or secure communication H04L9/00
    • H04L2209/12Details relating to cryptographic hardware or logic circuitry
DE60222052T 2001-06-13 2002-01-25 Verschlüsselung gesichert gegen Angriffe durch die Analyse der Leistungsaufnahme (DPA) Expired - Lifetime DE60222052T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2001178407 2001-06-13
JP2001178407A JP4596686B2 (ja) 2001-06-13 2001-06-13 Dpaに対して安全な暗号化

Publications (2)

Publication Number Publication Date
DE60222052D1 true DE60222052D1 (de) 2007-10-11
DE60222052T2 DE60222052T2 (de) 2008-05-21

Family

ID=19019110

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60222052T Expired - Lifetime DE60222052T2 (de) 2001-06-13 2002-01-25 Verschlüsselung gesichert gegen Angriffe durch die Analyse der Leistungsaufnahme (DPA)

Country Status (4)

Country Link
US (1) US7386130B2 (de)
EP (2) EP1267514B1 (de)
JP (1) JP4596686B2 (de)
DE (1) DE60222052T2 (de)

Families Citing this family (104)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7599491B2 (en) * 1999-01-11 2009-10-06 Certicom Corp. Method for strengthening the implementation of ECDSA against power analysis
US7092523B2 (en) 1999-01-11 2006-08-15 Certicom Corp. Method and apparatus for minimizing differential power attacks on processors
US9323955B2 (en) * 2000-12-21 2016-04-26 Gemalto Sa Method for protecting a logic or mathematical operator installed in an electronic module with a microprocessor as well as the associated embedded electronic module and the system
EP1486026A1 (de) * 2002-03-07 2004-12-15 Axalto SA Verfahren zur sicherung einer elektronischen kryptovorrichtung mit geheimschlüssel
JP4515716B2 (ja) * 2002-04-03 2010-08-04 パナソニック株式会社 拡大鍵生成装置、暗号化装置および暗号化システム
JP4357815B2 (ja) 2002-09-11 2009-11-04 株式会社東芝 暗号演算回路
FR2844896A1 (fr) * 2002-09-19 2004-03-26 St Microelectronics Sa Alimentation d'un circuit de traitement asynchrone de donnees
US7190791B2 (en) * 2002-11-20 2007-03-13 Stephen Laurence Boren Method of encryption using multi-key process to create a variable-length key
JP2004212828A (ja) * 2003-01-08 2004-07-29 Sony Corp 暗号処理装置、および暗号処理方法、並びにコンピュータ・プログラム
EP1457858A1 (de) * 2003-03-14 2004-09-15 SCHLUMBERGER Systèmes Methode um ein elektronisches System zu sichern, das ein Kryptoprocessor enthält
JP3927151B2 (ja) * 2003-05-30 2007-06-06 株式会社東芝 記憶装置
DE10341096A1 (de) * 2003-09-05 2005-03-31 Giesecke & Devrient Gmbh Übergang zwischen maskierten Repräsentationen eines Wertes bei kryptographischen Berechnungen
JP3998616B2 (ja) * 2003-09-10 2007-10-31 株式会社東芝 暗号化/復号モジュール
WO2005027403A1 (ja) * 2003-09-11 2005-03-24 Renesas Technology Corp. 情報処理装置
JP4611643B2 (ja) * 2004-01-16 2011-01-12 三菱電機株式会社 個別鍵生成装置
KR101061906B1 (ko) * 2004-02-19 2011-09-02 삼성전자주식회사 전력분석공격에 안전한 기본 연산 장치 및 방법
KR100594265B1 (ko) * 2004-03-16 2006-06-30 삼성전자주식회사 매스킹 방법이 적용된 데이터 암호처리장치, aes암호시스템 및 aes 암호방법.
US8102997B2 (en) * 2004-03-29 2012-01-24 Stmicroelectronics S.A. Processor for executing an AES-type algorithm
US7899190B2 (en) 2004-04-16 2011-03-01 Research In Motion Limited Security countermeasures for power analysis attacks
EP1596278A1 (de) * 2004-05-11 2005-11-16 Axalto SA Verfahren zum Schutz einer kryptographischen Einheit mittels homographischer Maskierung
US7848514B2 (en) * 2004-05-24 2010-12-07 Research In Motion Limited Table masking for resistance to power analysis attacks
EP1601132B1 (de) * 2004-05-24 2006-11-15 Research In Motion Limited Tabellenmaskierung zur Beständigkeit gegen Angriffe durch Analyse der Leistungsaufnahme.
US8577942B2 (en) 2004-07-07 2013-11-05 Mitsubishi Electric Corporation Electronic device and data processing device for implementing cryptographic algorithms
KR20060081847A (ko) * 2005-01-10 2006-07-13 삼성전자주식회사 비밀키를 보호하는 스마트 카드 및 그것의 방법
JP5068176B2 (ja) 2005-01-18 2012-11-07 サーティコム コーポレーション デジタル署名と公開鍵の促進された検証
US8467535B2 (en) * 2005-01-18 2013-06-18 Certicom Corp. Accelerated verification of digital signatures and public keys
KR100725169B1 (ko) * 2005-01-27 2007-06-04 삼성전자주식회사 전력 분석 공격에 안전한 논리 연산 장치 및 방법
GB2443358A (en) * 2005-01-27 2008-04-30 Samsung Electronics Co Ltd Cryptographic logic circuits and method of performing logic operations
US7949807B2 (en) 2005-03-16 2011-05-24 Mitsubishi Electric Corporation Data conversion apparatus and data conversion method
JP4823904B2 (ja) * 2005-03-31 2011-11-24 パナソニック株式会社 データ暗号化装置及びデータ暗号化方法
US8024583B2 (en) * 2005-04-27 2011-09-20 Panasonic Corporation Confidential information processing host device and confidential information processing method
JP4180094B2 (ja) * 2005-04-28 2008-11-12 松下電器産業株式会社 プログラム変換装置、暗号処理装置、暗号処理方法
JP4887668B2 (ja) * 2005-06-09 2012-02-29 ソニー株式会社 暗号化復号処理回路および暗号化復号システム
JP5179358B2 (ja) * 2005-06-29 2013-04-10 イルデト アイントホーフェン ベー フェー 攻撃又は解析に対してデータ処理装置を保護するための装置及び方法
JP4586163B2 (ja) * 2005-09-09 2010-11-24 国立大学法人岩手大学 暗号化システム
JP4783104B2 (ja) 2005-09-29 2011-09-28 株式会社東芝 暗号化/復号装置
FR2893796B1 (fr) * 2005-11-21 2008-01-04 Atmel Corp Procede de protection par chiffrement
JP2007189659A (ja) * 2005-12-15 2007-07-26 Toshiba Corp 暗号化装置、暗号化方法及び暗号化プログラム
DE602006020010D1 (de) * 2005-12-19 2011-03-24 St Microelectronics Sa Schutz der Ausführung eines DES-Algorithmus
JP2007192893A (ja) * 2006-01-17 2007-08-02 Sony Corp 暗号処理装置、および暗号処理方法、並びにコンピュータ・プログラム
JP4986206B2 (ja) * 2006-02-22 2012-07-25 株式会社日立製作所 暗号処理方法及び暗号処理装置
ATE476803T1 (de) * 2006-03-07 2010-08-15 Research In Motion Ltd Tabellenteilung für kryptografische verfahren
WO2007121035A2 (en) 2006-03-23 2007-10-25 Exegy Incorporated Method and system for high throughput blockwise independent encryption/decryption
EP1840732A1 (de) * 2006-03-31 2007-10-03 Axalto SA Schutz vor Seitenkanalangriffen
FR2903508B1 (fr) * 2006-07-10 2008-10-17 Sagem Defense Securite Protection d'un programme interprete par une machine virtuelle
JP4882598B2 (ja) * 2006-07-28 2012-02-22 ソニー株式会社 暗号処理装置、暗号処理アルゴリズム構築方法、および暗号処理方法、並びにコンピュータ・プログラム
JP5023624B2 (ja) * 2006-09-01 2012-09-12 ソニー株式会社 暗号処理装置、および暗号処理方法、並びにコンピュータ・プログラム
JP4909018B2 (ja) * 2006-11-16 2012-04-04 富士通株式会社 共通鍵暗号のための暗号化装置
US9411976B2 (en) * 2006-12-01 2016-08-09 Maidsafe Foundation Communication system and method
US8422668B1 (en) * 2006-12-15 2013-04-16 Spansion Llc Table lookup operation on masked data
US7949130B2 (en) * 2006-12-28 2011-05-24 Intel Corporation Architecture and instruction set for implementing advanced encryption standard (AES)
US7970129B2 (en) * 2007-04-19 2011-06-28 Spansion Llc Selection of a lookup table with data masked with a combination of an additive and multiplicative mask
JP4936996B2 (ja) 2007-05-24 2012-05-23 株式会社東芝 非線形データ変換器、暗号化装置、および復号装置
EP2186250B1 (de) * 2007-08-31 2019-03-27 IP Reservoir, LLC Verfahren und vorrichtung für hardware-beschleunigte verschlüsselung/entschlüsselung
US7945050B2 (en) * 2007-09-28 2011-05-17 Intel Corporation Suppressing power supply noise using data scrambling in double data rate memory systems
US8503678B2 (en) * 2007-09-28 2013-08-06 Intel Corporation Suppressing power supply noise using data scrambling in double data rate memory systems
EP2195761B1 (de) * 2007-10-01 2013-04-03 Research In Motion Limited Substitutionstabellenmaskierung für kryptografische prozesse
KR101011264B1 (ko) * 2008-01-18 2011-01-27 고려대학교 산학협력단 아리아 마스킹 방법 및 이를 이용한 아리아 암호 장치 및방법
EP2273472B1 (de) 2008-03-31 2016-02-17 Fujitsu Limited Mit einer funktion für einen gemeinsamen schlüsselcode ausgestatteter codierer und eingebaute geräte
JP5268609B2 (ja) * 2008-12-09 2013-08-21 株式会社東芝 暗号処理装置及び演算方法
JP5202350B2 (ja) * 2009-01-16 2013-06-05 三菱電機株式会社 暗号処理装置及び暗号処理方法及び暗号処理プログラム
FR2941343B1 (fr) * 2009-01-20 2011-04-08 Groupe Des Ecoles De Telecommunications Get Ecole Nat Superieure Des Telecommunications Enst Circuit de cryptographie, protege notamment contre les attaques par observation de fuites d'information par leur chiffrement.
KR101715027B1 (ko) 2009-03-10 2017-03-22 이르데토 비.브이. 입력 의존형 인코딩들을 이용한 화이트-박스 암호화 시스템
JP4837058B2 (ja) * 2009-03-10 2011-12-14 株式会社東芝 演算装置及びプログラム
JP2010245881A (ja) * 2009-04-07 2010-10-28 Toshiba Corp 暗号処理装置
US8615078B2 (en) * 2009-08-21 2013-12-24 Electronics And Telecommunications Research Institute Method and apparatus for processing F-function in seed encryption system
JP2011169977A (ja) * 2010-02-16 2011-09-01 Renesas Electronics Corp 暗号処理装置
US8619985B2 (en) 2010-04-27 2013-12-31 Research In Motion Limited Table splitting for cryptographic processes
DE102010028375A1 (de) * 2010-04-29 2011-11-03 Robert Bosch Gmbh Schutz vor kryptoanalytischen Seitenkanalattacken
DE102010029735A1 (de) * 2010-06-07 2011-12-08 Robert Bosch Gmbh Verfahren zum Generieren eines Bitvektors
JP5060606B2 (ja) * 2010-09-17 2012-10-31 株式会社東芝 暗号化装置
US20120079462A1 (en) * 2010-09-24 2012-03-29 SoftKrypt LLC Systems and methods of source software code obfuscation
KR20120070873A (ko) * 2010-12-22 2012-07-02 한국전자통신연구원 부채널 방지 마스킹 덧셈 연산 장치
FR2977953A1 (fr) * 2011-07-13 2013-01-18 St Microelectronics Rousset Protection d'un calcul d'exponentiation modulaire par addition d'une quantite aleatoire
MY178555A (en) * 2011-08-19 2020-10-16 Mimos Berhad Method and system for providing a secured internet protocol based communication
US8624624B1 (en) 2011-08-26 2014-01-07 Lockheed Martin Corporation Power isolation during sensitive operations
US8525545B1 (en) 2011-08-26 2013-09-03 Lockheed Martin Corporation Power isolation during sensitive operations
JP5481455B2 (ja) * 2011-09-27 2014-04-23 株式会社東芝 暗号処理装置
US8745376B2 (en) 2011-10-14 2014-06-03 Certicom Corp. Verifying implicit certificates and digital signatures
JP5711681B2 (ja) * 2012-03-06 2015-05-07 株式会社東芝 暗号処理装置
FR2995111B1 (fr) * 2012-09-04 2015-07-24 Morpho Protection contre canaux auxiliaires
CN103001762B (zh) * 2012-11-25 2015-08-19 宁波大学 一种密码器件上防御零值功耗攻击的方法
DE102012025416A1 (de) * 2012-12-21 2014-06-26 Giesecke & Devrient Gmbh Verfahren zum Betreiben eines portablen Datenträgers sowie ein solcher portabler Datenträger
JP5500277B2 (ja) * 2013-01-28 2014-05-21 富士通株式会社 共通鍵暗号機能を搭載した暗号化装置及び組込装置
US9959429B2 (en) * 2013-03-15 2018-05-01 Cryptography Research, Inc. Asymmetrically masked multiplication
US10015152B2 (en) * 2014-04-02 2018-07-03 International Business Machines Corporation Securing data in a dispersed storage network
CN103905462B (zh) * 2014-04-16 2017-05-17 深圳国微技术有限公司 可抵御差分功耗分析攻击的加密处理装置及方法
US9871651B2 (en) * 2014-06-16 2018-01-16 Cisco Technology, Inc. Differential power analysis countermeasures
US9654111B1 (en) * 2014-11-12 2017-05-16 Maxim Integrated Products, Inc. Systems and methods for protecting data using reconfigurable logic paths
US9792246B2 (en) 2014-12-27 2017-10-17 Intel Corporation Lower-power scrambling with improved signal integrity
CN106161005B (zh) * 2015-03-31 2019-05-07 北京南瑞智芯微电子科技有限公司 一种分组加密算法防攻击的掩码方法和装置
DE102015115649A1 (de) 2015-09-16 2017-03-16 Claas Tractor Sas Landwirtschaftliches Arbeitsfahrzeug
FR3048096A1 (fr) * 2016-02-22 2017-08-25 Eshard Procede de protection d'un circuit contre une analyse par canaux auxiliaires
EP3220304B1 (de) 2016-02-22 2018-11-07 Eshard Verfahren zur prüfung des widerstands einer schaltung bei einer seitenkanalanalyse
EP3264396B1 (de) * 2016-06-28 2022-01-26 Eshard Verfahren zum schutz eines substitutionsvorgangs unter verwendung eines substitutionstischs gegen eine seitenkanalanalyse
EP3264397B1 (de) * 2016-06-28 2020-09-16 Eshard Schutzverfahren und vorrichtung gegen eine seitenkanalanalyse
EP3264311B1 (de) 2016-06-28 2021-01-13 Eshard Schutzverfahren und vorrichtung gegen eine seitenkanalanalyse
CN107547193A (zh) 2016-06-28 2018-01-05 埃沙尔公司 使替换运算免受侧信道分析的方法
US10243937B2 (en) * 2016-07-08 2019-03-26 Nxp B.V. Equality check implemented with secret sharing
US10256973B2 (en) * 2016-09-30 2019-04-09 Intel Corporation Linear masking circuits for side-channel immunization of advanced encryption standard hardware
FI20165911A (fi) * 2016-11-30 2018-05-31 Sam Widlund Menetelmä ja järjestelmä tiedon salaukseen
US11507699B2 (en) * 2019-09-27 2022-11-22 Intel Corporation Processor with private pipeline
KR20210108787A (ko) 2020-02-26 2021-09-03 삼성전자주식회사 듀얼 인코더를 포함하는 시큐리티 회로 및 이를 포함하는 암복호화기
JP7314108B2 (ja) * 2020-08-27 2023-07-25 株式会社東芝 暗号処理装置、暗号処理方法およびプログラム

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5452358A (en) * 1994-02-08 1995-09-19 Apple Computer, Inc. Method and apparatus for improving the security of an electronic codebook encryption scheme utilizing a data dependent encryption function
GB2288519A (en) * 1994-04-05 1995-10-18 Ibm Data encryption
US5870470A (en) 1996-02-20 1999-02-09 International Business Machines Corporation Method and apparatus for encrypting long blocks using a short-block encryption procedure
AU6381699A (en) * 1998-06-03 2000-01-10 Cryptography Research, Inc. Improved des and other cryptographic processes with leak minimization for smartcards and other cryptosystems
US6510518B1 (en) * 1998-06-03 2003-01-21 Cryptography Research, Inc. Balanced cryptographic computational method and apparatus for leak minimizational in smartcards and other cryptosystems
JP3600454B2 (ja) 1998-08-20 2004-12-15 株式会社東芝 暗号化・復号装置、暗号化・復号方法、およびそのプログラム記憶媒体
US6275586B1 (en) * 1998-09-10 2001-08-14 Igt Cryptographically secure pseudo random number generator
FR2784829B1 (fr) 1998-10-16 2000-12-29 Gemplus Card Int Procede de contre-mesure dans un composant electronique mettant en oeuvre un algorithme de cryptographie a cle secrete
FR2784831B1 (fr) 1998-10-16 2000-12-15 Gemplus Card Int Procede de contre-mesure dans un composant electronique mettant en oeuvre un algorithme de cryptographie a cle secrete
FR2785477B1 (fr) 1998-10-29 2000-12-29 Gemplus Card Int Procede de contre-mesure dans un composant electronique mettant en oeuvre un algorithme de cryptographie a cle secrete
JP2000165375A (ja) * 1998-11-30 2000-06-16 Hitachi Ltd 情報処理装置、icカード
FR2789535B1 (fr) 1999-02-04 2001-09-28 Bull Cp8 Procede de securisation d'un ensemble electronique de cryptographie a cle secrete contre les attaques par analyse physique
FR2789776B1 (fr) 1999-02-17 2001-04-06 Gemplus Card Int Procede de contre-mesure dans un composant electronique mettant en oeuvre un algorithme de cryptographie a cle secrete
FR2790890B1 (fr) * 1999-03-08 2001-04-27 Gemplus Card Int Procede de contre-mesure dans un composant electronique mettant en oeuvre un algorithme de cryptographie a cle secrete
JP2000305453A (ja) 1999-04-21 2000-11-02 Nec Corp 暗号化装置,復号装置,および暗号化・復号装置
US6295606B1 (en) * 1999-07-26 2001-09-25 Motorola, Inc. Method and apparatus for preventing information leakage attacks on a microelectronic assembly
DE19936529C1 (de) 1999-08-03 2001-02-01 Orga Kartensysteme Gmbh Verfahren zur Verschlüsselung von Daten mit Hilfe einer Standard-Verschlüsselung in einem mikroprozessorgestützten, tragbaren Datenträger
US6873706B1 (en) * 1999-09-29 2005-03-29 Hitachi, Ltd. Processing apparatus, program, or system of secret information
CA2298990A1 (en) * 2000-02-18 2001-08-18 Cloakware Corporation Method and system for resistance to power analysis
FR2809893B1 (fr) * 2000-06-02 2002-11-15 Gemplus Card Int Procede de contre-mesure dans un composant electronique mettant en oeuvre un algorithme de cryptographie a cle publique sur courbe elliptique
US7000111B1 (en) * 2000-11-07 2006-02-14 Ericsson Inc. Method for masking secret multiplicands

Also Published As

Publication number Publication date
US7386130B2 (en) 2008-06-10
DE60222052T2 (de) 2008-05-21
EP1267514B1 (de) 2007-08-29
JP4596686B2 (ja) 2010-12-08
JP2002366029A (ja) 2002-12-20
EP1267514A3 (de) 2003-11-05
US20030048903A1 (en) 2003-03-13
EP1772985A1 (de) 2007-04-11
EP1267514A9 (de) 2003-05-21
EP1267514A2 (de) 2002-12-18

Similar Documents

Publication Publication Date Title
DE60222052D1 (de) Verschlüsselung gesichert gegen Angriffe durch die Analyse der Leistungsaufnahme (DPA)
CY2018009I2 (el) Παραλλαγες ανοσοσφαιρινων και χρησεις αυτων
DE60105788D1 (de) AES Verschlüsselungsschaltung
NO20040014L (no) Nye forbindelser
NO20041003L (no) Nye forbindelser
NO20034665L (no) Nye forbindelser
DE60228803D1 (de) Schlaghammergerät
DE60220550D1 (de) Haareisen
DE60300524D1 (de) Multidirektionale Eingabetaste
NO20035428D0 (no) Nye anti-ineffektiver
NO20034992D0 (no) Nye 4-aninlinokinolin-3-karboksamider
DK1376922T3 (da) Krypteringsindretning
NO20055568D0 (no) Substituerte 1,4-diazepiner og anvendelser derav
NO20033402L (no) Volumetrisk analyse av laminert sand
DE50308372D1 (de) Bohrhammer
NO20035121D0 (no) Ny anvendelse
EE200300560A (et) Vasarveski
ITMI20021038A0 (it) Disposizione di elettrodi
DE50202182D1 (de) Multipliziererschaltung
DE60318139D1 (de) Isolator- und Anordnungskonfiguration
NO20043664L (no) Ny fremgangsmate
DE50311673D1 (de) Bohrhammer
NO20033919D0 (no) Ny anvendelse
NO20025902L (no) Nye fenylpiperaziner
ITMI20030823A1 (it) Processo di preparazione di alcossi e arilossifenoli.

Legal Events

Date Code Title Description
8364 No opposition during term of opposition