WO2010070336A3 - Encryption / decryption method, cryptographic protocols and key inversion method - Google Patents

Encryption / decryption method, cryptographic protocols and key inversion method Download PDF

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Publication number
WO2010070336A3
WO2010070336A3 PCT/GB2009/051717 GB2009051717W WO2010070336A3 WO 2010070336 A3 WO2010070336 A3 WO 2010070336A3 GB 2009051717 W GB2009051717 W GB 2009051717W WO 2010070336 A3 WO2010070336 A3 WO 2010070336A3
Authority
WO
WIPO (PCT)
Prior art keywords
encryption
cryptographic protocols
key
key inversion
decryption
Prior art date
Application number
PCT/GB2009/051717
Other languages
French (fr)
Other versions
WO2010070336A2 (en
Inventor
Leslie Hatton
Original Assignee
Leslie Hatton
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 Leslie Hatton filed Critical Leslie Hatton
Priority to GB1112117A priority Critical patent/GB2478685A/en
Publication of WO2010070336A2 publication Critical patent/WO2010070336A2/en
Publication of WO2010070336A3 publication Critical patent/WO2010070336A3/en

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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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • 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
    • H04L9/30—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy
    • H04L9/3093—Public key, i.e. encryption algorithm being computationally infeasible to invert or user's encryption keys not requiring secrecy involving Lattices or polynomial equations, e.g. NTRU scheme

Abstract

A method of encrypting or decrypting a message comprising carrying out a discrete convolution given by Formula (I), where m is the message to be encrypted or decrypted comprising an array of Lm elements, h is a key or an inverse of a key comprising an array of Lh elements and e is the resulting encrypted or decrypted message comprising an array of Le elements.
PCT/GB2009/051717 2008-12-16 2009-12-15 Cryptography WO2010070336A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1112117A GB2478685A (en) 2008-12-16 2009-12-15 Encryption / decryption method, cryptographic protocols and key inversion method

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0822870A GB0822870D0 (en) 2008-12-16 2008-12-16 Cryptography
GB0822870.2 2008-12-16

Publications (2)

Publication Number Publication Date
WO2010070336A2 WO2010070336A2 (en) 2010-06-24
WO2010070336A3 true WO2010070336A3 (en) 2010-08-12

Family

ID=40326162

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2009/051717 WO2010070336A2 (en) 2008-12-16 2009-12-15 Cryptography

Country Status (2)

Country Link
GB (2) GB0822870D0 (en)
WO (1) WO2010070336A2 (en)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6081597A (en) * 1996-08-19 2000-06-27 Ntru Cryptosystems, Inc. Public key cryptosystem method and apparatus
US20060023799A1 (en) * 2004-07-29 2006-02-02 Lg Electronics Inc. Apparatus for channel equalization and method thereof

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6081597A (en) * 1996-08-19 2000-06-27 Ntru Cryptosystems, Inc. Public key cryptosystem method and apparatus
US20060023799A1 (en) * 2004-07-29 2006-02-02 Lg Electronics Inc. Apparatus for channel equalization and method thereof

Also Published As

Publication number Publication date
GB201112117D0 (en) 2011-08-31
WO2010070336A2 (en) 2010-06-24
GB0822870D0 (en) 2009-01-21
GB2478685A (en) 2011-09-14

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