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    Secure distribution of a video card public key
    5.
    发明申请
    Secure distribution of a video card public key 审中-公开
    安全分发视频卡公钥

    公开(公告)号：US20060020785A1

    公开(公告)日：2006-01-26

    申请号：US10883264

    申请日：2004-06-30

    申请人： David Grawrock ,  Willard Wiseman ,  James Sutton ,  Clifford Hall ,  Ned Smith

    发明人： David Grawrock ,  Willard Wiseman ,  James Sutton ,  Clifford Hall ,  Ned Smith

    IPC分类号： H04L9/00

    CPC分类号： G06F21/84 ,  G06F21/57

    摘要： A system and method for secure distribution of a video card public key. The method provides for loading an authentication code module into a processor, authenticating the authentication code module, and executing the authentication code module. Executing the authentication module causes the authentication code module to assert a hardware indicator to access at least one address in a special protected page on a chipset. Receipt of the hardware indicator by the chipset causes a specific reference to be sent via a dedicated port to a circuit card to retrieve a public key from the circuit card.

    摘要翻译： 一种用于安全分发视频卡公钥的系统和方法。 该方法提供将认证码模块加载到处理器中，认证认证码模块和执行认证码模块。 执行认证模块使认证码模块断言硬件指示符访问芯片组中特殊保护页面中的至少一个地址。 通过芯片组接收硬件指示符，将特定的参考信号通过专用端口发送到电路卡以从电路卡中取回公钥。

    Method of delivering direct proof private keys to devices using a distribution CD
    8.
    发明申请
    Method of delivering direct proof private keys to devices using a distribution CD 有权
    使用分发CD向设备提供直接验证私钥的方法

    公开(公告)号：US20060013399A1

    公开(公告)日：2006-01-19

    申请号：US10892265

    申请日：2004-07-14

    申请人： Ernie Brickell ,  James Sutton ,  Clifford Hall ,  David Grawrock

    发明人： Ernie Brickell ,  James Sutton ,  Clifford Hall ,  David Grawrock

    IPC分类号： H04L9/00

    CPC分类号： H04L63/062 ,  G06F21/57 ,  G06F21/73 ,  H04L9/0841 ,  H04L63/0853 ,  H04L2209/125

    摘要： Delivering a Direct Proof private key to a device installed in a client computer system in the field may be accomplished in a secure manner without requiring significant non-volatile storage in the device. A unique pseudo-random value is generated and stored in the device at manufacturing time. The pseudo-random value is used to generate a symmetric key for encrypting a data structure holding a Direct Proof private key and a private key digest associated with the device. The resulting-encrypted data structure is stored on a removable storage medium (such as a CD), and distributed to the owner of the client computer system. When the device is initialized on the client computer system, the system checks if a localized encrypted data structure is present in the system. If not, the system obtains the associated encrypted data structure from the removable storage medium. The device decrypts the encrypted data structure using a symmetric key regenerated from its stored pseudo-random value to obtain the Direct Proof private key. If the private key is valid, it may be used for subsequent authentication processing by the device in the client computer system.

    摘要翻译： 将直接证明私钥提供给安装在该领域中的客户端计算机系统中的设备可以以安全的方式来实现，而不需要设备中的显着的非易失性存储。 在制造时产生并存储在设备中的唯一伪随机值。 伪随机值用于生成用于加密持有Direct Proof私钥和与该设备相关联的私钥摘要的数据结构的对称密钥。 所得到的加密数据结构存储在可移动存储介质（例如CD）上，并分发给客户端计算机系统的所有者。 当在客户端计算机系统上初始化设备时，系统会检查系统中是否存在本地化的加密数据结构。 如果不是，系统从可移动存储介质中获得相关联的加密数据结构。 设备使用从其存储的伪随机值重新生成的对称密钥来解密加密数据结构，以获得直接证明私钥。 如果私钥有效，则其可以用于客户端计算机系统中的设备的后续认证处理。

    Method of storing unique constant values
    9.
    发明申请
    Method of storing unique constant values 失效

    公开(公告)号：US20060015751A1

    公开(公告)日：2006-01-19

    申请号：US10891699

    申请日：2004-07-14

    申请人： Ernie Brickell ,  Alberto Martinez ,  David Grawrock ,  James Sutton ,  Clifford Hall

    发明人： Ernie Brickell ,  Alberto Martinez ,  David Grawrock ,  James Sutton ,  Clifford Hall

    IPC分类号： G06F12/14

    CPC分类号： G06F21/73

    摘要： Secure storage and retrieval of a unique value associated with a device to/from a memory of a processing system. In at least one embodiment, the device needs to be able to access the unique value across processing system resets, and the device does not have sufficient non-volatile storage to store the unique value itself. Instead, the unique value is stored in the processing system memory in such a way that the stored unique value does not create a unique identifier for the processing system or the device. A pseudo-randomly or randomly generated initialization vector may be used to vary an encrypted data structure used to store the unique value in the memory.

    Method of delivering Direct Proof private keys to devices using an on-line service
    10.
    发明申请
    Method of delivering Direct Proof private keys to devices using an on-line service 失效
    使用在线服务将Direct Proof私钥交付给设备的方法

    公开(公告)号：US20060013402A1

    公开(公告)日：2006-01-19

    申请号：US10892256

    申请日：2004-07-14

    申请人： James Sutton ,  Ernie Brickell ,  Clifford Hall ,  David Grawrock

    发明人： James Sutton ,  Ernie Brickell ,  Clifford Hall ,  David Grawrock

    IPC分类号： H04L9/00

    CPC分类号： H04L9/0844 ,  H04L2209/127

    摘要： Delivering a Direct Proof private key to a device installed in a client computer system in the field may be accomplished in a secure manner without requiring significant non-volatile storage in the device. A unique pseudo-random value is generated and stored in the device at manufacturing time. The pseudo-random value is used to generate a symmetric key for encrypting a data structure holding a Direct Proof private key and a private key digest associated with the device. The resulting encrypted data structure is stored on a protected on-liner server accessible by the client computer system. When the device is initialized on the client computer system, the system checks if a localized encrypted data structure is present in the system. If not, the system obtains the associated encrypted data structure from the protected on-line server using a secure protocol. The device decrypts the encrypted data structure using a symmetric key regenerated from its stored pseudo-random value to obtain the Direct Proof private key. If the private key is valid, it may be used for subsequent authentication processing by the device in the client computer system.

    摘要翻译： 将直接证明私钥提供给安装在该领域中的客户端计算机系统中的设备可以以安全的方式来实现，而不需要设备中的显着的非易失性存储。 在制造时产生并存储在设备中的唯一伪随机值。 伪随机值用于生成用于加密持有Direct Proof私钥和与该设备相关联的私钥摘要的数据结构的对称密钥。 所得到的加密数据结构存储在由客户端计算机系统可访问的受保护的在线服务器上。 当在客户端计算机系统上初始化设备时，系统会检查系统中是否存在本地化的加密数据结构。 如果没有，系统将使用安全协议从受保护的在线服务器获取相关联的加密数据结构。 设备使用从其存储的伪随机值重新生成的对称密钥来解密加密数据结构，以获得直接证明私钥。 如果私钥有效，则其可以用于客户端计算机系统中的设备的后续认证处理。