EP 2162820 A1 20100317 - MONTGOMERY-BASED MODULAR EXPONENTIATION SECURED AGAINST HIDDEN CHANNEL ATTACKS
Title (en)
MONTGOMERY-BASED MODULAR EXPONENTIATION SECURED AGAINST HIDDEN CHANNEL ATTACKS
Title (de)
AUF MONTGOMERY BASIERENDE MODULARE EXPONENTIERUNG MIT SICHERUNG VOR VERBORGENEN KANALATTACKEN
Title (fr)
MISE A LA PUISSANCE MODULAIRE SELON MONTGOMERY SECURISEE CONTRE LES ATTAQUES A CANAUX CACHES
Publication
Application
Priority
- EP 2008055427 W 20080502
- EP 07301194 A 20070629
- EP 08749996 A 20080502
Abstract (en)
[origin: EP2015171A1] The method involves drawing of a random value, and initializing variables with the aid of the random value and by utilizing a chosen module and a Montgomery variable. An algorithm enabling a loop invariant to be retained is applied by virtue of properties of a Montgomery multiplier. A result is unmasked to obtain a signature of a message.
IPC 8 full level
G06F 7/72 (2006.01)
CPC (source: EP US)
G06F 7/728 (2013.01 - EP US); H04L 9/003 (2013.01 - EP US); H04L 9/302 (2013.01 - EP US); G06F 7/723 (2013.01 - EP US); G06F 2207/7219 (2013.01 - EP US); H04L 2209/046 (2013.01 - EP US)
Citation (search report)
See references of WO 2009003740A1
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2015171 A1 20090114; EP 2162820 A1 20100317; US 2010177887 A1 20100715; WO 2009003740 A1 20090108
DOCDB simple family (application)
EP 07301194 A 20070629; EP 08749996 A 20080502; EP 2008055427 W 20080502; US 66689208 A 20080502