(19)

(11)

EP 1 665 625 A1

(12)

(43) Date of publication: 07.06.2006 Bulletin 2006/23 (21) Application number: 04775419.7 (22) Date of filing: 13.09.2004

(51) International Patent Classification (IPC):  H04L 9/12(1990.01) (86) International application number: PCT/SE2004/001314 (87) International publication number: WO 2005/027404 (24.03.2005 Gazette 2005/12)

(84) Designated Contracting States: AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR Designated Extension States: AL HR LT LV MK (30) Priority: 12.09.2003 SE 0302456 12.09.2003 US 502254 P 04.02.2004 SE 0400238 (71) Applicant: Secured Email AB 457 50 Billdal (SE)	(72) Inventor: DAVIN, Peter S-421 77 Västra Frölunda (SE) (74) Representative: Egeröd, Lisbeth  Valea AB Lindholmspiren 5, 417 56 Göteborg 417 56 Göteborg (SE)