EP 1008251 A1 20000614 - SYSTEM FOR GENERATING SUB-KEYS
Title (en)
SYSTEM FOR GENERATING SUB-KEYS
Title (de)
VORRICHTUNG ZUR ERZEUGUNG VON TEILSCHLÜSSELN
Title (fr)
DISPOSITIF DE GENERATION DE SOUS-CLES
Publication
Application
Priority
- GB 9802129 W 19980717
- GB 9718200 A 19970829
Abstract (en)
[origin: GB2329096A] A facitity for enhancing data security comprises a plurality of encryption modules, an interface and a data processing machine (10). The encryption modules are each responsible to a sub-key for encrypting data. The interface is operative to receive a master key, and the data processing machine (10) is operative to create a series of sub-keys for use with the modules. The machine (10) is operative to create each of the sub-keys by means of a hash function of the master key.
IPC 1-7
IPC 8 full level
CPC (source: EP)
H04L 9/0643 (2013.01); H04L 2209/24 (2013.01)
Citation (search report)
See references of WO 9912309A1
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
GB 2329096 A 19990310; GB 9718200 D0 19971105; AU 8450198 A 19990322; EP 1008251 A1 20000614; WO 9912309 A1 19990311; ZA 986026 B 19990128
DOCDB simple family (application)
GB 9718200 A 19970829; AU 8450198 A 19980717; EP 98935142 A 19980717; GB 9802129 W 19980717; ZA 986026 A 19980708