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1. 发明公开

US20230299948A1 QUANTUM STREAMING 审中-公开
公开(公告)号：US20230299948A1
公开(公告)日：2023-09-21
申请号：US18017060
申请日：2021-07-20
申请人： ARQIT LIMITED
发明人： David WILLIAMS , Barry CHILDE
IPC分类号： H04L9/08 , G06N10/80 , H04L9/14 , H04L9/40
CPC分类号： H04L9/0852 , G06N10/80 , H04L9/085 , H04L9/14 , H04L63/0457
摘要： Method(s), system(s), apparatus are provided for quantum safe quantum streaming between a first endpoint device and second endpoint device via a server of a quantum cloud platform. Splitting, at the first endpoint device, a data item into a plurality of data shards that allow reconstruction of the data item. Encrypting, at the first endpoint device, each of the data shards separately using a first cryptographic key shared between the first endpoint device and the second endpoint device. Establishing, between the first endpoint device and the server, a first plurality of secure channels with the server of the quantum cloud platform using a second cryptographic key, the second cryptographic key shared between the endpoint and the server. Transmitting, from the first endpoint device to the server, the plurality of encrypted shards towards the second endpoint device via the server over the plurality of secure channels. Receiving, at the server, the plurality of encrypted data shards of the data item transmitted from the first endpoint device over the first plurality of secure channels, each data shard encrypted using the first cryptographic key known only to the first endpoint device and the second endpoint device. Securely storing, by the server, the encrypted data shards of the data item in a secure storage of the quantum cloud platform. In response to the second endpoint logging onto the quantum cloud platform, establishing a second plurality of secure channels with the second endpoint using a third cryptographic key, the third cryptographic key shared between the second endpoint device and the server. Retrieving the encrypted data shards of the data item from secure storage. Transmitting the encrypted data shards over the second plurality of secure channels to the second endpoint device. Receiving, at the second endpoint, a plurality of encrypted data shards of the encrypted data item from the server over the second plurality. Decrypting the encrypted data shards using the first cryptographic key to reconstruct the data item transferred from the first endpoint device to the second endpoint device.

2. 发明公开

US20230360040A1 QUANTUM-SAFE PAYMENT SYSTEM 审中-公开
公开(公告)号：US20230360040A1
公开(公告)日：2023-11-09
申请号：US18017259
申请日：2021-07-20
申请人： ARQIT LIMITED
发明人： Barry CHILDE , Jon DAPRE , David WILLIAMS
IPC分类号： G06Q20/38 , G06Q20/40 , G06Q20/02 , G06Q20/06
CPC分类号： G06Q20/3829 , G06Q20/4014 , G06Q20/027 , G06Q20/0655
摘要： A computer-implemented method of secure quantum safe (QS) payments using a quantum cloud payment platform, the method, performed by the quantum cloud payment platform, comprising: receiving one or more quantum safe deposit payment transactions from one or more endpoint devices of one or more registered users, each QS deposit payment transaction of a user comprising data representative of a deposit fiat cash value; transferring each of the deposit fiat cash values from a bank account associated with a user and linked to the QS payment account of the user to a quantum cloud account for pooling each of the deposit fiat cash values; for each deposit fiat cash value transferred in relation to a user of an endpoint device, performing: converting said each deposit fiat cash value to a corresponding number of quantum money tokens; linking said number of quantum money tokens to the QS payment account of the user; and sending said number of quantum money tokens to the endpoint device of the user for updating an electronic wallet of said user.

3. 发明公开

US20230299949A1 KEY EXCHANGE PROTOCOL 审中-公开
公开(公告)号：US20230299949A1
公开(公告)日：2023-09-21
申请号：US18017063
申请日：2021-07-20
申请人： ARQIT LIMITED
发明人： Daryl BURNS , Barry CHILDE , David WILLIAMS
IPC分类号： H04L9/08 , H04L9/40
CPC分类号： H04L9/0852 , H04L63/061 , H04L2209/08
摘要： Methods, apparatus, and systems are provided for performing a secure communication between a sender device and receiver device. This includes encapsulating or encrypting, by the sender device, a message using a post-quantum cryptographic algorithm and quantum key (QK) material derived from QK distribution with a receiver device. Noise is added, by the sender device, to the encapsulated or encrypted message. The sender device sends the noisy encapsulated/encrypted message to the receiver device. On receipt of the noisy encapsulated or encrypted message from the sender device, the receiver device decapsulates or decrypts the received message using corresponding QK used by the sender device. The receiver device decapsulates or decrypts the QK decapsulated/decrypted message using the corresponding post-quantum cryptographic algorithm used by the sender, and the receiver device outputs or uses the message sent by the sender.

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