EP 1216536 A1 20020626 - SET OF PARTICULAR KEYS FOR PROVING AUTHENTICITY OF AN ENTITY OR THE INTEGRITY OF A MESSAGE
Title (en)
SET OF PARTICULAR KEYS FOR PROVING AUTHENTICITY OF AN ENTITY OR THE INTEGRITY OF A MESSAGE
Title (de)
SCHLÜSSELSATZ ZUM BEWEIS DER AUTHENTIZITÄT EINER EINHEIT ODER DER INTEGRITÄT EINER NACHRICHT
Title (fr)
JEUX DE CLES PARTICULIERS DESTINES A PROUVER L'AUTHENTICITE D'UNE ENTITE OU L'INTEGRITE D'UN MESSAGE
Publication
Application
Priority
- FR 0002715 W 20000929
- FR 9912465 A 19991001
- FR 9912467 A 19991001
- FR 9912468 A 19991001
- FR 0009644 A 20000721
Abstract (en)
[origin: WO0126278A1] The invention concerns a set of particular keys designed to prove the authenticity of an entity or the integrity of a message. The proof is established by a set of keys comprising: m (>/=1) pairs of private Qi and public Gi = gi<2> values; a public module n consisting of the product of f(>/=2) prime factors; an exponent v=2<k> (k > 1), linked by relationships of the type: Gi .Qi<v> 1. mod n or Gi QI<v> mod n . The set of keys is produced such that: among the m numbers obtained by increasing Qi or its inverse modulo n to modulo n square, k-1 times rank, at least one of them is different from ∓ gi; among the 2m equations: x<2> gi mod n, x<2> -gi mod n at least one of them has solutions in x in the ring of the modulo n integers.
IPC 1-7
IPC 8 full level
H04L 9/32 (2006.01)
CPC (source: EP US)
H04L 9/302 (2013.01 - EP US); H04L 9/3218 (2013.01 - EP US); H04L 9/3249 (2013.01 - EP US)
Citation (search report)
See references of WO 0126278A1
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 0126278 A1 20010412; AT E518327 T1 20110815; AU 765538 B2 20030918; AU 766102 B2 20031009; AU 7669900 A 20010510; AU 7670000 A 20010510; CA 2386748 A1 20010412; CA 2386748 C 20081125; CA 2388084 A1 20010412; CN 100380862 C 20080409; CN 1215678 C 20050817; CN 1387714 A 20021225; CN 1433609 A 20030730; EP 1216536 A1 20020626; EP 1216537 A1 20020626; EP 1216537 B1 20110727; JP 2003511899 A 20030325; JP 2004527139 A 20040902; JP 2008048451 A 20080228; JP 4809310 B2 20111109; US 7080254 B1 20060718; WO 0126279 A1 20010412
DOCDB simple family (application)
FR 0002715 W 20000929; AT 00966248 T 20000929; AU 7669900 A 20000929; AU 7670000 A 20000929; CA 2386748 A 20000929; CA 2388084 A 20000929; CN 00815285 A 20000929; CN 00817730 A 20000929; EP 00966246 A 20000929; EP 00966248 A 20000929; FR 0002717 W 20000929; JP 2001529121 A 20000929; JP 2001529122 A 20000929; JP 2007258101 A 20071001; US 8966203 A 20030218