公开(公告)号：US09762687B2

公开(公告)日：2017-09-12

申请号：US14407969

申请日：2013-06-17

Applicant: Cisco Technology, Inc.

Inventor： Avraham Poupko ,  Hillel Solow ,  Perry Smith

IPC: G06F17/30 ,  H04L29/08

CPC classification number: H04L67/22 ,  G06F17/30053 ,  H04L67/26 ,  H04L67/2804 ,  H04L67/306

Abstract: A method and system for media consumption are described. The method including tagging each one of a plurality of content items with at least one metadata tag, the metadata tag including a descriptor of at least one topical attribute describing the content item, the plurality of content items being adapted for consumption on a plurality of user devices, wherein the plurality of content items are provided in multiple file formats; acquiring a history of user consumption of the plurality of content items on a plurality of user devices associated with a single user; storing a user record including the acquired user history, a plurality of metadata tags associated with user consumed content, and including a list of devices comprising the plurality of user devices associated with a single user; building a playlist based, at least in part, on the following criteria, wherein each content item which is listed on the playlist has at least one tag which is also one of a plurality of tags already stored in the user record: a) including a content item which has been started but not completely consumed, b) not including content items marked in the acquired history as being completely consumed, unless the content items have changed with respect to the version consumed, and c) including content items which have not been consumed; selecting at least one content item from the playlist; and pushing the selected at least one content item to at least one of the plurality of user devices associated with a single user, wherein if the selected at least one content item is not suitable for consumption on the at least one of the plurality of user devices, then a next item in the playlist is pushed to the least one of the plurality of user devices.

公开(公告)号：US20150113125A1

公开(公告)日：2015-04-23

申请号：US14061165

申请日：2013-10-23

Applicant: Cisco Technology Inc.

Inventor： Brian Chamberlin ,  Simon Parnall ,  Hillel Solow ,  Yaron Sella ,  Aviad Kipnis ,  Perry Smith

IPC: H04L12/26 ,  H04L29/08

CPC classification number: H04L43/0805 ,  H04L63/0209 ,  H04L63/0281

Abstract: A system and method is described for providing the status of safety critical systems to untrusted devices.

Abstract translation: 描述了一种系统和方法，用于向不受信任的设备提供安全关键系统的状态。

公开(公告)号：US20140195809A1

公开(公告)日：2014-07-10

申请号：US14238255

申请日：2012-11-01

Applicant: Cisco Technology, Inc

Inventor： Hillel Solow ,  Harel Cain ,  Eliphaz Hibshoosh

IPC: H04L29/06

CPC classification number: H04L9/085 ,  H04L63/0428 ,  H04L63/062 ,  H04L63/0876

Abstract: A method for distributing information includes distributing an item of encrypted information to a plurality of clients and distributing respective key-shares to the clients, such that each client will require a key-share that has been distributed to at least one other client in order to reconstruct a key for decrypting the encrypted information. Upon receiving from a first client a report that a second client requested and received a respective one of the key-shares from the first client, a record of a delivery of the item to the second client is made responsively to the report.

Abstract translation: 一种用于分发信息的方法包括将加密信息的项目分发到多个客户端并将相应的密钥分发分配给客户端，使得每个客户端将需要已经分发给至少一个其他客户端的密钥共享，以便 重建用于解密加密信息的密钥。 在从第一客户端接收到第二客户端从第一客户端请求并接收到相应的一个密钥份的报告时，响应于该报告来做出该项目到第二客户端的传送记录。

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

IPC: H04L29/06 ,  G06F21/10 ,  H04L9/08 ,  G06F21/64

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.

公开(公告)号：US09124770B2

公开(公告)日：2015-09-01

申请号：US14017016

申请日：2013-09-03

Applicant: Cisco Technology Inc.

Inventor： Erez Waisbard ,  Hillel Solow

IPC: H04L29/06 ,  H04N7/167 ,  H04N21/266 ,  H04N21/418 ,  H04N21/4405

CPC classification number: H04N7/167 ,  H04H60/15 ,  H04H60/23 ,  H04N21/26606 ,  H04N21/4181 ,  H04N21/4405 ,  H04N21/4408 ,  H04N21/4623

Abstract: A method and system of preventing control word sharing, the method and system including receiving a temporal key, denoted TKi, at a removable security element, receiving an entitlement control message (ECM), the ECM including a control word derivable by the removable security element, deriving the control word from the ECM at the removable security element, combining at least the control word and a value associated with an ID of the removable security element, thereby producing combined control word and removable security element ID data, encrypting the combined control word and removable security element ID data according to an encryption function, wherein the encrypting includes using TKi as an encryption key, and at a time after a removable security element interface has received TKi, but prior to a start of a crypto period with which the control word is associated, sending the encrypted combined control word and removable security element ID data to the removable security element interface. Related apparatus, methods and systems are also described.

Abstract translation: 一种防止控制字共享的方法和系统，所述方法和系统包括在可移动安全元件处接收表示为TKi的时间密钥，接收授权控制消息（ECM），所述ECM包括可移除安全元件可导出的控制字 从可移除安全元件的ECM导出控制字，至少组合控制字和与可拆卸安全元件的ID相关联的值，从而产生组合的控制字和可移除的安全元件ID数据，对组合的控制字进行加密 以及根据加密功能的可移动安全元素ID数据，其中所述加密包括使用TKi作为加密密钥，并且在可移除安全元素接口已经接收到TKi之后但是在所述控制 字相关联，将加密的组合控制字和可移除安全元素ID数据发送到可移除安全元件i 接口 还描述了相关装置，方法和系统。