EP 1419434 A1 20040519 - SECURE METHOD FOR PERFORMING A MODULAR EXPONENTIATION OPERATION
Title (en)
SECURE METHOD FOR PERFORMING A MODULAR EXPONENTIATION OPERATION
Title (de)
GESICHERTES VERFAHREN ZUM REALISIEREN EINER MODULAREN POTENTIERUNGSOPERATION
Title (fr)
PROCEDE SECURISE DE REALISATION D'UNE OPERATION D'EXPONENTIATION MODULAIRE
Publication
Application
Priority
- FR 0202771 W 20020731
- FR 0110671 A 20010810
Abstract (en)
[origin: FR2828608A1] The encryption process produces an exponential operation of the type U=VW modulo X where U,V and W are whole numbers. W is formed as a masked parameter chosen randomly each execution period. The masking parameter is a fractional number.
IPC 1-7
IPC 8 full level
G06F 7/72 (2006.01)
CPC (source: EP US)
G06F 7/723 (2013.01 - EP US); H04L 9/002 (2013.01 - EP US); H04L 9/302 (2013.01 - EP US); G06F 2207/7242 (2013.01 - EP US); G06F 2207/7257 (2013.01 - EP US); H04L 2209/04 (2013.01 - EP US)
Citation (search report)
See references of WO 03014916A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR
DOCDB simple family (publication)
FR 2828608 A1 20030214; FR 2828608 B1 20040305; CN 1568457 A 20050119; EP 1419434 A1 20040519; US 2004184604 A1 20040923; WO 03014916 A1 20030220
DOCDB simple family (application)
FR 0110671 A 20010810; CN 02820000 A 20020731; EP 02772476 A 20020731; FR 0202771 W 20020731; US 48634004 A 20040430