(19)
(11) EP 4 487 205 A1

(12)

(43) Date of publication:
08.01.2025 Bulletin 2025/02

(21) Application number: 23717355.4

(22) Date of filing: 09.03.2023
(51) International Patent Classification (IPC): 
G06F 7/58(2006.01)
 H04L 9/08(2006.01)
(52) Cooperative Patent Classification (CPC):
G06F 7/588; H04L 2209/26; H04L 9/0869
(86) International application number:
PCT/US2023/064010
(87) International publication number:
WO 2023/172998 (14.09.2023 Gazette 2023/37)
(84) Designated Contracting States:
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC ME MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated Extension States:
BA
Designated Validation States:
KH MA MD TN

(30) Priority: 11.03.2022 US 202263319172 P

(71) Applicant: Quantinuum Ltd.
London, Greater London SW1P 1BX (GB)

(72) Inventors:
  • SEMENENKO, Henry
    London Greater London SW1P 1BX (GB)
  • KAY, Nicholas
    London Greater London SW1P 1BX (GB)
  • ALMEIDA, Mafalda, Ludovina
    London Greater London SW1P 1BX (GB)
  • JEE, Hye, Jung
    London Greater London SW1P 1BX (GB)
  • HOBAN, Matthew
    London Greater London SW1P 1BX (GB)
  • CURCHOD, Florian
    London Greater London SW1P 1BX (GB)
  • WRIGHT, Sherilyn
    London Greater London SW1P 1BX (GB)
  • FOREMAN, Cameron
    London Greater London SW1P 1BX (GB)
  • YEUNG, Yui, Chi, Richie
    London Greater London SW1P 1BX (GB)
  • LEE, Elizabeth
    London Greater London SW1P 1BX (GB)
  • PIRONIO, Stefano
    1170 Watermael-Boitsfort (BE)
  • OKOTH, Cameron
    London Greater London SW11 3GZ (GB)
  • MILNER, Kevin
    London Greater London SW1P 1BX (GB)
  • BARTOLOME, Maria, Laia, Gines
    London Greater London SW1P 1BX (GB)

(74) Representative: Jennings, Michael John 
Venner Shipley LLP 200 Aldersgate
London EC1A 4HD
London EC1A 4HD (GB)

   


(54) CRYPTOGRAPHIC KEY AND RANDOM NUMBER GENERATION BASED ON QUANTUM SYSTEMS