Global Patent Index - EP 1390828 A1

EP 1390828 A1 20040225 - TRUST GRANT AND REVOCATION FROM A MASTER KEY TO SECONDARY KEYS

Title (en)

TRUST GRANT AND REVOCATION FROM A MASTER KEY TO SECONDARY KEYS

Title (de)

VERTRAUENSZUTEILUNG UND -WIDERRUFUNG VON EINEM GRUNDSCHLÜSSEL ZU SEKUNDÄREN SCHLÜSSELN

Title (fr)

OCTROI ET INVALIDATION DE LA CONFIANCE PAR UNE CLE PRINCIPALE A DES CLES SECONDAIRES

Publication

EP 1390828 A1 20040225 (EN)

Application

EP 01937758 A 20010525

Priority

US 0117128 W 20010525

Abstract (en)

[origin: WO03003176A1] A method and apparatus is provided that allows code signed by a master key to grant trust to an arbitrary second key, and also allows code, referred to as an antidote and also signed by the master key to revoke permanently the trust given to the second key.

IPC 1-7

G06F 1/00

IPC 8 full level

G06F 21/00 (2006.01); G06F 21/51 (2013.01); H04L 9/08 (2006.01); H04L 9/32 (2006.01)

CPC (source: EP)

G06F 21/51 (2013.01)

Citation (search report)

See references of WO 03003176A1

Citation (examination)

WO 0077974 A1 20001221 - LIBERATE TECHNOLOGIES [US]

Designated contracting state (EPC)

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

DOCDB simple family (publication)

WO 03003176 A1 20030109; AU 2001263462 B2 20050929; CA 2447649 A1 20030109; CA 2447649 C 20080729; CN 1326006 C 20070711; CN 1527963 A 20040908; EP 1390828 A1 20040225; JP 2004535118 A 20041118

DOCDB simple family (application)

US 0117128 W 20010525; AU 2001263462 A 20010525; CA 2447649 A 20010525; CN 01823293 A 20010525; EP 01937758 A 20010525; JP 2003509288 A 20010525