The one-time supply of software, or the use of hardware, to generate QRN locally is open to all the weaknesses of a centralised source of randomness. They are high- value targets because compromising them compromises all systems that rely on them. SDS will be able to safely store the ‘seed of randomness’ until needed to generate encryption keys. SDS can supply storage of QRN by classical computers until needed without any loss of security because the infrastructure supporting the transfer and storage of QRN is agnostic to any decryption capability. This service encourages an increased use of QRNG by classical computers.