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公开(公告)号：US20140137198A1
公开(公告)日：2014-05-15
申请号：US14131363
申请日：2012-12-26
Applicant: Cisco Technology Inc.
Inventor： Yossi Tsuria
IPC: H04L29/06
CPC classification number: H04L63/0421 , G06Q30/0609 , G06Q2220/00 , H04L9/321 , H04L9/3236 , H04L9/3271 , H04L2209/42 , H04L2209/56
Abstract: A method and system for anonymous purchase by a first user device, is described, the method and system including sending R from the first user device to a second user device, where R is a result of a one-way function performed on a random number r selected by the first user device, the second user device being operative to send R to a service provider, which stores R with a data string T and the service provider returns a digitally signed R and T to the second user device, thereby providing the a data string T to the second user device, receiving R and T at the first user device from the second device, thereby ensuring that the identity of the first user device remains unknown to the service provider, opening a communication channel between the first user device and the service provider, sending the service provider r and T from the first user device via the communication channel along with a re quest for the service provider to provide a service, and receiving the requested service from the service provider. Related methods, systems and apparatus are also described.
Abstract translation: 描述了由第一用户设备匿名购买的方法和系统，所述方法和系统包括将R从第一用户设备发送到第二用户设备，其中R是对随机数执行的单向功能的结果 r由第一用户设备选择，第二用户设备可操作以将R发送到服务提供商，服务提供商将R存储有数据串T，并且服务提供商将数字签名的R和T返回给第二用户设备，从而提供 数据串T到第二用户设备，从第二设备在第一用户设备处接收R和T，从而确保第一用户设备的身份对于服务提供商来说是未知的，打开第一用户设备之间的通信信道 和所述服务提供商，经由所述通信信道从所述第一用户设备发送所述服务提供商r和T以及对所述服务提供商的请求以提供服务，以及接收所请求的服务fr 服务提供商。 还描述了相关方法，系统和装置。
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公开(公告)号：US20180322259A1
公开(公告)日：2018-11-08
申请号：US15585194
申请日：2017-05-03
Applicant: Cisco Technology, Inc.
Inventor： Hillel SOLOW , Yossi Tsuria , Avraham Poupko , Shabtai Atlow
Abstract: In one embodiment, an instruction is received at a blockchain server from a first digital rights management (DRM) client, the instruction including an instruction to transfer a DRM license to an encrypted content item to a second DRM client. A block to be recorded in a blockchain, is created, the block including a content item ID of said encrypted content item, one of a device ID of a device including the second DRM client or a user ID of a user of the second DRM client, DRM license information for said DRM license, and a DRM decryption key for decrypting said encrypted content item. The block is recorded in the blockchain. A confirmation message is sent to the second DRM client confirming that the block was written to the blockchain. Related systems, methods, and apparatuses are also described.
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公开(公告)号：US09385995B2
公开(公告)日：2016-07-05
申请号：US14131363
申请日：2012-12-26
Applicant: Cisco Technology Inc.
Inventor： Yossi Tsuria
CPC classification number: H04L63/0421 , G06Q30/0609 , G06Q2220/00 , H04L9/321 , H04L9/3236 , H04L9/3271 , H04L2209/42 , H04L2209/56
Abstract: A method and system for anonymous purchase by a first user device, is described, the method and system including sending R from the first user device to a second user device, where R is a result of a one-way function performed on a random number r selected by the first user device, the second user device being operative to send R to a service provider, which stores R with a data string T and the service provider returns a digitally signed R and T to the second user device, thereby providing the a data string T to the second user device, receiving R and T at the first user device from the second device, thereby ensuring that the identity of the first user device remains unknown to the service provider, opening a communication channel between the first user device and the service provider, sending the service provider r and T from the first user device via the communication channel along with a request for the service provider to provide a service, and receiving the requested service from the service provider. Related methods, systems and apparatus are also described.
Abstract translation: 描述了由第一用户设备匿名购买的方法和系统，所述方法和系统包括将R从第一用户设备发送到第二用户设备，其中R是对随机数执行的单向功能的结果 r由第一用户设备选择，第二用户设备可操作以将R发送到服务提供商，服务提供商将R存储有数据串T，并且服务提供商将数字签名的R和T返回给第二用户设备，从而提供 数据串T到第二用户设备，从第二设备在第一用户设备处接收R和T，从而确保第一用户设备的身份对于服务提供商来说是未知的，打开第一用户设备之间的通信信道 和服务提供商，经由通信信道从第一用户设备发送服务提供商r和T以及服务提供商提供服务的请求，并且接收所请求的服务 服务提供商。 还描述了相关方法，系统和装置。
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公开(公告)号：US10509891B2
公开(公告)日：2019-12-17
申请号：US15585194
申请日：2017-05-03
Applicant: Cisco Technology, Inc.
Inventor： Hillel Solow , Yossi Tsuria , Avraham Poupko , Shabtai Atlow
Abstract: In one embodiment, an instruction is received at a blockchain server from a first digital rights management (DRM) client, the instruction including an instruction to transfer a DRM license to an encrypted content item to a second DRM client. A block to be recorded in a blockchain, is created, the block including a content item ID of said encrypted content item, one of a device ID of a device including the second DRM client or a user ID of a user of the second DRM client, DRM license information for said DRM license, and a DRM decryption key for decrypting said encrypted content item. The block is recorded in the blockchain. A confirmation message is sent to the second DRM client confirming that the block was written to the blockchain. Related systems, methods, and apparatuses are also described.
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