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Joao Carlos Leandro da Silva

  • RESEARCH
    • Cryptography – design new codes
    • Cryptanalysis – break existing codes
    • Cybersecurity – identify cyberweapons
    • Algorithm development – develop a new algorithm
  • SERVICES
    • Consulting – individual or other
    • Writing – technical or creative
    • Speaking – private or public
  • PRODUCTS
    • Book – The Rainbow of Primes
  • TECHNOLOGY
    • Algorithm – 3D cryptography
    • Algorithm – 3D integer factorization
    • Software – Graphical Integer Factorization Technique
  • IDEAS
    • Patternprimes = Pattern among the prime numbers
    • 3Dintegers = Three-dimensional integers
    • 3Dlanguage = Three-dimensional language
    • Gameprimes = Game involving prime numbers
    • Imes3D = I message in three-dimensions
    • My3Dsms = My three-dimensional SMS
    • SMSgoes3D = SMS goes three-dimensional
  • PARTNERS
    • Partners
  • INVESTORS
    • Investors
Joao Carlos Leandro Da Silva

ABOUT ME

I am a one person company (OPC) that does research in both cryptography and cryptanalysis with the aim to create new products and/ or services.

  • 1966-1979
    I was born on December 31 in Lisbon, Portugal. Since my father was a career diplomat, I lived in many different countries.
  • 1980-1984
    I attended the American International School of Lisbon.
  • 1989
    I obtained a bachelor degree in Electrical Engineering from the University of Connecticut in the USA.
  • 1990-1991
    I did my military service in Portugal.
  • 1992-1995
    I enrolled as a graduate student at the Instituto Superior Técnico in Lisbon. I completed all course work for the master degree in Physics while working as a teaching assistant. I was for a short period a scientific associate at CERN.
  • 1996-1998
    I worked as an engineer for Samsung Corporation in Portugal.
  • 1999-2003
    I worked as an engineer for several smaller companies in Italy.
  • 2004
    I presented a poster abstract entitled, “The distribution of prime numbers hidden within a fractal binary pattern” at the Fractal 2004 conference in Canada.
  • 2005
    I attended the NKS summer school which took place at Brown University in the USA. My project concerned the Collatz problem.
  • 2006-2008
    I worked as an independent consultant in cryptography.
  • 2009
    My book was published in Israel by Freund Publishing House Ltd. and dedicated in memory of my father.
  • 2010
    I started my own company and attended the IEEE 26-th Convention of Electrical and Electronics Engineers in Israel where I presented two papers “Carmichael numbers and a new primality test” and “Factoring semiprimes and possible implications for RSA”.
  • 2011-2013
    I worked as an external collaborator for several large companies and later attended the Hacking Defined Experts (HDE 39) course in Israel.
  • 2014
    I invented a new technology called 3D cryptography.
  • 2015-2018
    I worked as a consultant for special projects in Italy, USA and Israel.
  • 2019
    I invented a new technology called 3D integer factorization; I created GIFT (Graphical Integer Factorization Technique) and published a paper entitled “The definition of a cyberweapon” on my website.

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Joao Carlos Leandro Da Silva

© Joao Carlos Leandro da Silva

Via Medole 22, 46043 Castiglione delle Stiviere (MN) - Italy
P.I. 02298830205

Tel/Fax +39 0376 944100
Email: joaodasilva@rainbowofprimes.com

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