Secure consumer distribution of content using subkeys for encryption and authentication
    31.
    发明申请
    Secure consumer distribution of content using subkeys for encryption and authentication 审中-公开
    使用子密钥安全消费者分发内容进行加密和认证

    公开(公告)号:US20070179898A1

    公开(公告)日:2007-08-02

    申请号:US11347704

    申请日:2006-02-02

    Abstract: User-to-user (“superdistribution”) of digital content allows for management and control of the distribution by a content owner, content distributor or other owner or licensee of the content. Provisions are also available for identifying senders and receivers of content for purposes of compensating or encouraging distribution. A sending user generates a referral key that is used to encrypt all, or a portion of, the content, or to encrypt other mechanisms (e.g., another key, ticket, etc.) that will ultimately be used to allow access to the content. The sending user creates a content referral object that includes the restricted referral key, an identification of the license server and an identification of the content. A receiving user receives the content referral object and contacts the license server to identify the transaction (e.g., content being referred, access rights desired, etc.) and to receive information (e.g., a key or ticket) to use the referral key to access the content.

    Abstract translation: 数字内容的用户到用户(“超级分配”)允许管理和控制内容所有者,内容分发者或其他内容的所有者或许可人的分发。 为了补偿或鼓励发行,还可以提供确定内容的发送者和接收者的规定。 发送用户生成用于加密内容的全部或一部分的引荐密钥,或加密将最终用于允许访问内容的其他机制(例如,另一个密钥,票据等)。 发送用户创建包括受限推荐密钥,许可证服务器的标识和内容的标识的内容引用对象。 接收用户接收内容引用对象并与许可证服务器联系以识别交易(例如,被引用的内容,所需的访问权限等)并且接收使用推荐密钥访问的信息(例如,密钥或票证) 内容。

    Object and resource security system
    33.
    发明申请
    Object and resource security system 有权
    对象和资源安全系统

    公开(公告)号:US20060053439A1

    公开(公告)日:2006-03-09

    申请号:US11250352

    申请日:2005-10-14

    Applicant: Eric Sprunk

    Inventor: Eric Sprunk

    Abstract: According to the invention, a method for securing a plaintext object within a content receiver is disclosed. In one step, a secure portion of a secure object and a plaintext remainder of the secure object are received. Which portion of the secure object is the secure portion is determined. The secure portion is decrypted to provide a plaintext portion. The plaintext object that comprises the plaintext portion and the plaintext remainder is formed. The plaintext object is stored including authentication and authorization.

    Abstract translation: 根据本发明,公开了一种用于保护内容接收器内的明文对象的方法。 在一个步骤中,接收安全对象的安全部分和安全对象的明文剩余部分。 确定安全对象的哪一部分是安全部分。 解密安全部分以提供明文部分。 形成包含明文部分和明文余数的明文对象。 存储明文对象包括认证和授权。

    Secure processor with external memory using block chaining and block
re-ordering
    34.
    发明授权
    Secure processor with external memory using block chaining and block re-ordering 失效
    使用块链接和块重新排序使用外部存储器的安全处理器

    公开(公告)号:US6061449A

    公开(公告)日:2000-05-09

    申请号:US949111

    申请日:1997-10-10

    Abstract: A scrambled data transmission is descrambled by communicating encrypted program information and authentication information between an external storage device and block buffers of a secure circuit. The program information is communicated in block chains to reduce the overhead of the authentication information. The program information is communicated a block at a time, or even a chain at a time, and stored temporarily in block buffers and a cache, then provided to a CPU to be processed. The blocks may be stored in the external storage device according to a scrambled address signal, and the bytes, blocks, and chains may be further randomly re-ordered and communicated to the block buffers non-sequentially to obfuscate the processing sequence of the program information. Program information may be also be communicated from the secure circuit to the external memory. The program information need not be encrypted but only authenticated for security.

    Abstract translation: 通过在外部存储设备和安全电路的块缓冲器之间传递加密的节目信息和认证信息来对加扰数据传输进行解扰。 程序信息以块链方式传送,以减少认证信息的开销。 节目信息一次传送一个块,或者甚至一个链路,并被临时存储在块缓冲器和高速缓存中,然后提供给待处理的CPU。 可以根据加扰的地址信号将块存储在外部存储设备中,并且可以进一步随机重新排序字节,块和链,并将其顺序地传送给块缓冲器以模糊程序信息的处理顺序 。 程序信息也可以从安全电路传送到外部存储器。 程序信息不需要加密,只能通过认证来进行安全。

    Clock frequency modulation for secure microprocessors
    35.
    发明授权
    Clock frequency modulation for secure microprocessors 失效
    安全微处理器的时钟频率调制

    公开(公告)号:US5404402A

    公开(公告)日:1995-04-04

    申请号:US167782

    申请日:1993-12-21

    Applicant: Eric Sprunk

    Inventor: Eric Sprunk

    Abstract: A secure microprocessor is provided with reduced vulnerability to attack. In the past, the secure operation of such processors has been overcome by observing the behavior of the clock used by the processor. Such observations, and the prediction of subsequent clock pulses therefrom, are prevented by modulating the clock by a substantially random function to provide an unpredictable stream of clock pulses. The secure processor is responsive to the unpredictable stream of clock pulses for processing data in accordance with a security algorithm.

    Abstract translation: 提供安全的微处理器,减少了攻击的易受攻击性。 在过去,通过观察处理器使用的时钟的行为已经克服了这种处理器的安全操作。 通过用基本上随机的函数调制时钟来提供这种不可预测的时钟脉冲流来防止这种观察以及对其后续的时钟脉冲的预测。 安全处理器响应于不可预测的时钟脉冲流,用于根据安全算法处理数据。

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