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        <title>Free Patents Online: Cryptography</title>
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        <description>USPTO Class 380 Cryptography</description>
        <language>en-us</language>
        <lastBuildDate>Thu, 16 May 2013 08:00:00 EDT</lastBuildDate>
        <item>
            <title><![CDATA[System And Method For Digital Rights Management With Secure Application-Content Binding]]></title>
            <link>http://www.freepatentsonline.com/y2013/0124862.html</link>
            <description><![CDATA[Various embodiments of a system and method for digital rights management with secure application-content binding are described. Various embodiments may include a system configured to decrypt an encrypted application key with a private key. The system may also be configured to decrypt an encrypted application including a binding key with the decrypted application key. The system may also be configured to decrypt an encrypted content key with the binding key from the decrypted application. The system may be further configured to decrypt encrypted content with the decrypted content key. In various embodiments, the system may also be configured to consume the decrypted content with the decrypted application.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[SYSTEM AND METHOD FOR DIGITAL RIGHTS MANAGEMENT WITH AUTHORIZED DEVICE GROUPS]]></title>
            <link>http://www.freepatentsonline.com/y2013/0124859.html</link>
            <description><![CDATA[Various embodiments of a system and method of digital rights management with authorized device groups are described. Various embodiments may include a system including a digital rights management (DRM) component configured to receive a private key of an authorized device group. In various embodiments, the receipt of the private key of the authorized device group may indicate the system is an authorized member of a group of devices permitted to access content items protected by a common public key associated with the authorized device group. In various embodiments the DRM component may be configured to, for each given content item of multiple content items that are encrypted with different content keys, decrypt an encrypted content key from the given content item with the private key of the authorized device group and decrypt content from the given content item with the decrypted content key.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
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        <item>
            <title><![CDATA[DIGITAL RIGHTS MANAGEMENT DISTRIBUTION SYSTEM]]></title>
            <link>http://www.freepatentsonline.com/y2013/0124853.html</link>
            <description><![CDATA[In an example embodiment, a digital content distributor may transmit an unsigned license associated with a protected digital object to a digital rights management provider. The digital rights management provider may digitally sign the license and may transmit the signed license to the digital content distributor.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[System And Method For Individualizing Content For A Consumer]]></title>
            <link>http://www.freepatentsonline.com/y2013/0124849.html</link>
            <description><![CDATA[Protected content that has been encrypted according to an encryption algorithm is individualized for a consumer according to pseudorandomly-generated individualization data values and individualization indexes. When different instances of individualized protected content are generated from the same protected content for different consumers, the different instances differ in content. To generate the individualized protected content, a packaging component is configured to identify pseudorandom intervals within the protected content using the individualization indexes, and for each given one of the intervals, to combine the protected content included within the given interval with a respective one of the individualization values according to a reversible data transform operation. The data transform operation is less computationally expensive than the given encryption algorithm.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[LOCAL TRUSTED SERVICES MANAGER FOR A CONTACTLESS SMART CARD]]></title>
            <link>http://www.freepatentsonline.com/y2013/0121493.html</link>
            <description><![CDATA[Systems, methods, computer programs, and devices are disclosed herein for deploying a local trusted service manager within a secure element of a contactless smart card device. The secure element is a component of a contactless smart card incorporated into a contactless smart card device. An asymmetric cryptography algorithm is used to generate public-private key pairs. The private keys are stored in the secure element and are accessible by a trusted service manager (TSM) software application or a control software application in the secure element. A non-TSM computer with access to the public key encrypts and then transmits encrypted application data or software applications to the secure element, where the TSM software application decrypts and installs the software application to the secure element for transaction purposes.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[Method and apparatus for securing communication between wireless devices]]></title>
            <link>http://www.freepatentsonline.com/y2013/0121492.html</link>
            <description><![CDATA[A system and method for securing communications in a wireless network includes the steps of authenticating members of the wireless network, generating a member private key to be used by the members of the wireless network, and distributing the member private key to each of the members of the wireless network. A member is authenticated based on the ability of the member to be physically proximate to at least one other member of the wireless network at a given instant. The member private key is generated by one of the members, hereinafter referred to as a master member, in response to a changing value stored at the one of the members. The member private key is then securely distributed to each of the members in the WLAN network.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[SYSTEM AND METHOD OF CREATING AND SENDING BROADCAST AND MULTICAST DATA]]></title>
            <link>http://www.freepatentsonline.com/y2013/0121491.html</link>
            <description><![CDATA[A method of encrypting broadcast and multicast data communicated between two or more parties, each party having knowledge of a shared key, is provided. The key is calculated using values, some of which are communicated between the parties, so that the shared key is not itself transferred. Avoiding the transfer of the key offers several advantages over existing encryption methods.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[METHOD AND APPARATUS FOR TRUST BASED DATA SCANNING, CAPTURE, AND TRANSFER]]></title>
            <link>http://www.freepatentsonline.com/y2013/0121490.html</link>
            <description><![CDATA[A method and apparatus for enabling trust based data scanning and capture is described. The method may include capturing data with a data capture device. The method may also include encrypting the data with a first encryption key, encrypting the first encryption key with a second encryption key to generate a first encrypted key data, and encrypting the first encrypted key data with a third encryption key to generate a second encrypted key data. The method may also include transmitting the encrypted data and the second encrypted key data to a remote service provider over a network.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[System And Method For Providing Content Protection Of Linearly Consumed Content With A Bidirectional Protocol For License Acquisition]]></title>
            <link>http://www.freepatentsonline.com/y2013/0121489.html</link>
            <description><![CDATA[Embodiments may include a content provider system configured to provide electronic content that includes multiple encrypted content items to a playback device. A playback device may be configured to acquire root licenses and/or content licenses from a license server; such licenses may cryptographically protect the content items that a playback device receives from a content provider system. In various embodiments, the electronic content may be content that is to be linearly consumed, such as a channel within a broadcast environment. In various embodiments, the playback device may explicitly request a license for one or more of the content items that it receives; such request may be issued to a license server. The license server may evaluate the request and respond to the playback device with the license for a content item. In various embodiments, the playback device may utilize the received license to decrypt and consume the respective content item.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[METHOD AND STORAGE DEVICE FOR PROTECTING CONTENT]]></title>
            <link>http://www.freepatentsonline.com/y2013/0121488.html</link>
            <description><![CDATA[A method for protecting content of a storage device including a memory for storing data and a controller for managing data input and output of the memory is provided, in which a Data Encryption Key (DEK) for encrypting the data stored in the memory is generated, an IDentifier (ID) of the memory is acquired, the DEK is encrypted using user secret information and the ID of the memory, and the encrypted DEK is stored in the memory.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[System And Method For Deterministic Generation Of A Common Content Encryption Key On Distinct Encryption Units]]></title>
            <link>http://www.freepatentsonline.com/y2013/0121487.html</link>
            <description><![CDATA[Various embodiments of a system and method for deterministic generation of a common content encryption key on distinct encryption units are described. Embodiments may include, for each given content item of multiple content items that represent one or more portions of a common media object, controlling a different encryption unit of multiple distinct encryption units to i) generate a content encryption key for the given content item based on: a common base secret shared by the multiple distinct encryption units, and an identifier specific to the media object, and ii) encrypt the given content item with the respective content encryption key generated for that content item in order to generate a respective encrypted content item. Each content encryption key generated for a given content item may be equivalent to each other content encryption key such that decryption of each encrypted content item requires a common decryption key.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[IDENTITY-BASED-ENCRYPTION MESSAGE MANAGEMENT SYSTEM]]></title>
            <link>http://www.freepatentsonline.com/y2013/0121486.html</link>
            <description><![CDATA[Systems and methods for managing email are provided. Some of the email may be encrypted using identity-based-encryption (IBE) techniques. When an incoming IBE-encrypted message for a recipient in an organization is received by a gateway at the organization, the gateway may request an IBE private key from an IBE private key generator. The IBE private key generator may generate the requested IBE private key for the gateway. The gateway may use an IBE decryption engine to decrypt the incoming message. The decrypted message can be scanned for viruses and spam and delivered to the recipient. Outgoing email messages can also be processed. If indicated by message attributes or information provided by a message sender, an outgoing message can be encrypted using an IBE encryption engine and the IBE public key of a desired recipient.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
        </item>
        <item>
            <title><![CDATA[METHOD FOR DETECTING AN ILLICIT USE OF A SECURITY PROCESSOR]]></title>
            <link>http://www.freepatentsonline.com/y2013/0121485.html</link>
            <description><![CDATA[This method for detecting an illicit use of a security processor used for the descrambling of different multimedia contents disseminated on several respective channels comprises: the incrementing (153) of a counter Kchi by a predetermined step whenever, after verification, a message ECMi,c is received within a time slot immediately consecutive to a message ECMi,p and, if not, the resetting (158) of the counter Kchi at its initial value,the detection (162) of an illicit use as soon as the counter Kchi reaches a predetermined threshold.]]></description>
            <pubDate>Thu, 16 May 2013 08:00:00 EDT</pubDate>
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