EP 1277307 A1 20030122 - CRYPTOGRAPHY METHOD ON ELLIPTIC CURVES
Title (en)
CRYPTOGRAPHY METHOD ON ELLIPTIC CURVES
Title (de)
KRYPTOGRAPHISCHES VERFAHREN ÜBER ELLIPTISCHE KURVEN
Title (fr)
PROCEDE DE CRYPTOGRAPHIE SUR COURBES ELLIPTIQUES
Publication
Application
Priority
- FR 0101195 W 20010418
- FR 0005006 A 20000418
Abstract (en)
[origin: WO0180481A1] The invention concerns a cryptography method for generating probabilistic digital signatures and/or for a key-exchange a protocol and/or for an encryption algorithm, said method being based on the use of a public key algorithm on abnormal binary elliptic curve (E) (Koblitz curve) whereon a point P (x, y) is selected, pairs (k>i<, P>i<) being stored with P>i< the point corresponding to the scalar multiplication of the point P by k>i<, said method comprising steps which consist in generating a random variable (k) and in calculating a point C corresponding to the scalar multiplication of P by k (C = k.P). The invention is characterised in that the generation of said random variable (k) and the calculation of the point C are performed simultaneously.
IPC 1-7
IPC 8 full level
G09C 1/00 (2006.01); H04L 9/30 (2006.01); G06F 7/72 (2006.01)
CPC (source: EP US)
H04L 9/0841 (2013.01 - EP US); H04L 9/3066 (2013.01 - EP US); H04L 9/3252 (2013.01 - EP US); G06F 7/725 (2013.01 - EP US); H04L 2209/08 (2013.01 - EP US)
Citation (search report)
See references of WO 0180481A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0180481 A1 20011025; AU 5487801 A 20011030; CN 1425231 A 20030618; EP 1277307 A1 20030122; FR 2807898 A1 20011019; FR 2807898 B1 20020628; JP 2004501385 A 20040115; MX PA02010310 A 20030425; US 2003152218 A1 20030814; US 7218735 B2 20070515
DOCDB simple family (application)
FR 0101195 W 20010418; AU 5487801 A 20010418; CN 01808226 A 20010418; EP 01927999 A 20010418; FR 0005006 A 20000418; JP 2001576610 A 20010418; MX PA02010310 A 20010418; US 25712903 A 20030403