GB2478685A - 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
GB2478685A
GB2478685A GB1112117A GB201112117A GB2478685A GB 2478685 A GB2478685 A GB 2478685A GB 1112117 A GB1112117 A GB 1112117A GB 201112117 A GB201112117 A GB 201112117A GB 2478685 A GB2478685 A GB 2478685A
Authority
GB
United Kingdom
Prior art keywords
encryption
cryptographic protocols
key
key inversion
decryption
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.)
Withdrawn
Application number
GB1112117A
Other versions
GB201112117D0 (en
Inventor
Leslie Hatton
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB201112117D0 publication Critical patent/GB201112117D0/en
Publication of GB2478685A publication Critical patent/GB2478685A/en
Withdrawn legal-status Critical Current

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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 in is the message to be encrypted or decrypted comprising an array of Lmelements, h is a key or an inverse of a key comprising an array of Lhelements and e is the resulting encrypted or decrypted message comprising an array of Leelements.
GB1112117A 2008-12-16 2009-12-15 Encryption / decryption method, cryptographic protocols and key inversion method Withdrawn GB2478685A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0822870A GB0822870D0 (en) 2008-12-16 2008-12-16 Cryptography
PCT/GB2009/051717 WO2010070336A2 (en) 2008-12-16 2009-12-15 Cryptography

Publications (2)

Publication Number Publication Date
GB201112117D0 GB201112117D0 (en) 2011-08-31
GB2478685A true GB2478685A (en) 2011-09-14

Family

ID=40326162

Family Applications (2)

Application Number Title Priority Date Filing Date
GB0822870A Ceased GB0822870D0 (en) 2008-12-16 2008-12-16 Cryptography
GB1112117A Withdrawn GB2478685A (en) 2008-12-16 2009-12-15 Encryption / decryption method, cryptographic protocols and key inversion method

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB0822870A Ceased GB0822870D0 (en) 2008-12-16 2008-12-16 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
WO2010070336A3 (en) 2010-08-12
GB0822870D0 (en) 2009-01-21
GB201112117D0 (en) 2011-08-31
WO2010070336A2 (en) 2010-06-24

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)