Personal page: Vlastimil Klima, Dr. (In Czech: Vlastimil Klíma) 

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Email: v.klima@volny.cz

Born: on 19th February 1957, Czech Republic

Live in: Prague,

Wikipedia info: here
Education: 1976 - 1981: Charles University in Prague Faculty of Mathematics and Physics, 1984: Doctor of Natural Sciences (DSc, Charles University)
Research: Security, Cryptology
Certificate: of Security Clearance TOP SECRET (expired), CONFIDENTIAL (expired), RESTRICTED (valid).
My photos: are here.

My former colleague, a brilliant cryptologist, Ing. Tomas Rosa, Ph.D, has his web here.

Selected publications:

· Vlastimil Klima: Fast Diffusion Block for Secret Key Cryptography, IACR eprint, Report 2022/502.pdf,

· Danilo Gligoroski, Svein J. Knapskog, Mohamed El-Hadedy, Jorn Amundsen, Stig F. Mjolsnes: Cryptographic Hash Function Blue Midnight Wish, 2nd ver., Sept.15, 2009, package, description, presentation at the First SHA-3 Conference

· Vlastimil Klima, Danilo Gligoroski, Rune Steinsmo Odegard, Marija Mihova, Svein Johan Knapskog, Ljupco Kocarev, Aleš Drápal: Cryptographic Hash Function EDON-R, package, Jan 12, 2009, presentation at the First SHA-3 Conference

· Vlastimil Klima, Danilo Gligoroski: Generic collision attacks on narrow-pipe hash functions faster than birthday paradox, applicable to MDx, SHA-1, SHA-2, and SHA-3 narrow-pipe candidates, IACR eprint, Report 2010/430, pdf.

· Vlastimil Klima, Danilo Gligoroski: On the Computational Asymmetry of the S-boxes, ICT Innovations 2009, Springer, Berlin, Heidelberg, 2010, pp. 391 - 400, Information on ICT Innovations 2009, Sept. 28 - 30, Ohrid, R. Macedonia, pdf,

· Vlastimil Klima: About a new generation of block ciphers and hash functions - DN and HDN, Security and Protection of Information, May 2 – 4, 2007, Brno, Czech Republic, www.unob.cz/spi, paper.pdf, presentation.pdf

· Vlastimil Klima: Tunnels in Hash Functions: MD5 Collisions Within a Minute, IACR ePrint archive Report 2006/105 , 18 March, 2006, source code

· Vlastimil Klima: Finding MD5 Collisions – a Toy For a Notebook, 5th March, 2005, IACR ePrint archive, Report 2005/075

· Vlastimil Klima, Ondrej Pokorny, Tomas Rosa: Attacking RSA-based Sessions in SSL/TLS, presented at CHES 2003, pp. 426-440, Springer-Verlag, 2003, Preliminary version: IACR ePrint archive Report 2003/052

· Vlastimil Klima, Tomas Rosa: Attack on Private Signature Keys of the OpenPGP format, PGP (TM) Programs and Other Applications Compatible with OpenPGP, IACR ePrint archive Report 2002/076, March 2001

· Vlastimil Klima, Tomas Rosa: Further Results and Considerations on Side Channel Attacks on RSA, CHES 2002 , pp. 245-260, Springer-Verlag, 2002, IACR ePrint archive Report 2002/071

· Lectures: Applied Cryptography, at the Faculty of Mathematics and Physics, Charles University in Prague, 2003 - 2007

· Archive of my publications: 1993_2015,

Some incomplete homepages to selected areas:

· NIST SHA-3 contest and Blue Midnight Wish (homepage)

· Block cipher DN, hash function HDN, Hash Functions SNMAC (homepage)

· MD5 collisions and Tunneling - the fastest method and program in the world (homepage)

· Breaking SSL/TLS (homepage)

· Breaking private PGP signature keys (homepage):

Professional History:

· 2004 - yet Independent cryptologist & consultant

· 2011 - 2020 Court expert in cybernetics and cryptography, named by Minister of Justice of Czech Rep., on Nov 3, 2011 – pdf.

· 2009 – 2014 CEO of the company KNZ, Ltd.

· 2004 - 2004 Cryptologist with Czech security company LEC

· 1997 - 2003 Cryptologist with Czech security company DECROS and ICZ

· 1996 - 1997 Cryptologist with Czech security company AEC

· 1995 - 1996 Cryptologist with Czech security company DECROS and ICZ

· 1994 - 1995 Cryptologist with German security company Tele Security Timmann

· 1993 - 1994 Cryptologist with two Czech security companies

· 1991 - 1992 Chief of R&D group, the Federal Ministry of Defense,

· 1982 - 1991 Chief of R&D group, Czech National Security Authority.

Projects:

As a cryptologist I cooperated in these projects:

· 2011 – 2020 projects for Courts, Police, Special Services,

· 2015 - projects Cryptelo, Babel,

· 2014 - project for ANECT (ALUCID, ADUCID),

· 2013 - project with ModemTec, a.s.

· 2005 – 2013 projects for the Czech National Security Authority,

· 2012 - projects for Orcave, a.s., ANECT,a.s., LOGOMOTION,a.s., Czech Police, ModemTec, 

· 2011 - projects for INTRIPLE, a.s., ANECT,a.s., LOGOMOTION,a.s., Czech Police, ModemTec, 

· 2008 – 2009 crypto and security for bank. system, securing GSM system, securing WAN of smart electrometers,

· 2008 – 2010, BMW, EDON-R, candidates for NIST SHA-3,

· 2007 – 2008, gigabit encryption device, lottery RNG, mobile banking system, ticket system,

· 2007 - special block cipher family DN and hash function family HDN,

· 2007 - securing GSM communication system,

· 2006 - security of a biometric system,

· 2006 - new generation of hash functions SNMAC,

· 2006 - MD5 collisions, discovering tunnels in MD5,

· 2005 - MD5 collisions, disclosing the Wang’s method, my own proposals of multi-message modification methods,

· 2004 - securing European train communication system, securing SMS in GSM; military type of projects,

· 2001 – 2003, analysis of OpenPGP, RSA-OAEP, RSA-KEM, CBC, SSL/TLS,

· 2001 – 2002, projects for the Czech National Security Authority, for protection of classified information,

· 2000 - the first Czech Cryptographic Service Provider for MS WindowsNT, certified by the Czech NSA for protection of classified information

· 1999 - 2014, co-editor of Czech crypto-news server and e-zin Crypto-world, ISSN 1801-2140 (in Czech only): security-news, crypto-news, my papers

· 1995 - the first world system for on-the-fly file encryption for Windows95,

· 1996 - the first Czech elliptic-curve public-key encryption system (Ellipt),

· 1995 - family of proprietary commercial encryption algorithms (WinCros),

· 1994 - authentication and encryption device for the X.25 network,

· 1993 - the first Czech encryption chip (SIC 5000),

· 1993 - various SW encryption programmes,

· 1982 – 1992, classified R&D,

Last update:

May 1, 2022