Global Patent Index - EP 0992002 A2

EP 0992002 A2 20000412 - SECURITY APPARATUS FOR DATA TRANSMISSION WITH DYNAMIC RANDOM ENCRYPTION

Title (en)

SECURITY APPARATUS FOR DATA TRANSMISSION WITH DYNAMIC RANDOM ENCRYPTION

Title (de)

SICHERHEITSVORRICHTUNG ZUR DATENÜBERTRAGUNG MIT DYNAMISCHER ZUFALLSVERSCHLÜSSE- LUNG

Title (fr)

APPAREIL DE SECURITE A CHIFFREMENT ALEATOIRE DYNAMIQUE, POUR LA TRANSMISSION DE DONNEES

Publication

EP 0992002 A2 20000412 (EN)

Application

EP 98936807 A 19980615

Priority

  • US 9812578 W 19980615
  • US 5017697 P 19970619

Abstract (en)

[origin: WO9858322A2] A security apparatus including a number input device (302), an address register (312) responsive to the number input device, an encryption schema memory (316) addressable by the address register to produce an output code and a relative address code, and address incrementing logic (310) responsive the relative address code and operative to increment the address register. The apparatus also preferably includes a PIN register (304) coupled to the number input device, a public code register (306) coupled to the number input device, and merging logic (308) merging outputs of the PIN register and the public code register to be input to the address register. The apparatus also preferably includes an output shift register operative to shift out the output code of the encryption schema memory. The encryption schema memory can be read only memory, writeable memory, or both.

IPC 1-7

G06F 15/00

IPC 8 full level

H04L 9/32 (2006.01); G06F 21/31 (2013.01); G06F 21/72 (2013.01)

CPC (source: EP)

G06F 21/31 (2013.01); G06F 21/72 (2013.01)

Citation (search report)

See references of WO 9858322A3

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

WO 9858322 A2 19981223; WO 9858322 A3 19990325; WO 9858322 A9 19990429; EP 0992002 A2 20000412; JP 2002504293 A 20020205

DOCDB simple family (application)

US 9812578 W 19980615; EP 98936807 A 19980615; JP 50472599 A 19980615