EP 1044533 A1 20001018 - ENCODING METHOD FOR CARRYING OUT CRYPTOGRAPHIC OPERATIONS
Title (en)
ENCODING METHOD FOR CARRYING OUT CRYPTOGRAPHIC OPERATIONS
Title (de)
VERSCHLÜSSELUNGSVERFAHREN ZUM AUSFÜHREN VON KRYPTOGRAPHISCHEN OPERATIONEN
Title (fr)
PROCEDE DE CODAGE PERMETTANT DE REALISER DES OPERATIONS CRYPTOGRAPHIQUES
Publication
Application
Priority
- DE 19845095 A 19980930
- DE 19936918 A 19990805
- EP 9907012 W 19990917
Abstract (en)
[origin: WO0019656A1] The invention relates to an encoding method and an encoding device. At least one partial cryptographic operation yi=fi(xi, ki) is carried out by data xi, ki which are digitally stored as data bit words and the result or intermediate results yi are digitally stored or temporarily stored as data bit words. At least one of the data xi, ki and/or the result or at least intermediate result yi is optionally complemented or not bit by bit to <o>ae</o>i, <o>k</o>i and/or <o>y</o>i, in accordance with a control signal ri based on random numbers.
IPC 1-7
IPC 8 full level
H04L 9/10 (2006.01); G06F 7/00 (2006.01); H04L 9/06 (2006.01)
CPC (source: EP)
G06F 7/00 (2013.01); H04L 9/003 (2013.01); G06F 2207/7233 (2013.01); H04L 2209/08 (2013.01)
Citation (search report)
See references of WO 0019656A1
Designated contracting state (EPC)
AT DE FR GB
DOCDB simple family (publication)
WO 0019656 A1 20000406; EP 1044533 A1 20001018; JP 2003524916 A 20030819
DOCDB simple family (application)
EP 9907012 W 19990917; EP 99948819 A 19990917; JP 2000573037 A 19990917