Patent application number | Description | Published |
20160080379 | EFFICIENT AND RELIABLE ATTESTATION - A computing device, or a security component of a computing device, implements delayed attestation by initially providing first credentials to a remote access device to establish a first level of trust. The first credentials may be provided before or while the computing device or the security component is obtaining security information from a remote security device. The security information is used to generate second credentials that are subsequently provided to the remote access device to establish a second level of trust. The first credentials may comprise an encryption key that can be generated by the security component without having to retrieve information via a network, and the second credentials may comprise an attestation statement that is more trustworthy than the encryption key and that is generated based on a certificate retrieved from a remote security device (e.g., a certificate authority server). | 03-17-2016 |
20160080380 | ESTABLISHING TRUST BETWEEN TWO DEVICES - Techniques described herein leverage a trusted entity within a domain to enable devices to establish trust with one another so they can securely discover each other and connect to one another. In various examples discussed herein, a device is configured to provide trust information to, and/or receive trust information from, the trusted entity. The trust information may include, for example, a public key of an encryption key pair, a certificate signed by the trusted entity proving authenticity, and/or a hash function and a hash seed used to compute a series of results that form a hash chain. The device may use the trust information to discover another device and to connect to the other device securely and automatically (e.g., with no user involvement or limited user involvement). Moreover, the device may use the trust information to dynamically change a MAC address being used to communicate with the other device. | 03-17-2016 |
Patent application number | Description | Published |
20140283054 | Automatic Fraudulent Digital Certificate Detection - A computing device analyzes digital certificates received from various different sites (e.g., accessed via the Internet or other network) in order to automatically detect fraudulent digital certificates. The computing device maintains a record of the digital certificates it receives from these various different sites. A certificate screening service operating remotely from the computing device also accesses these various different sites and maintains a record of the digital certificates that the service receives from these sites. In response to a request to access a target site the computing device receives a current digital certificate from the target site. The computing device determines whether the current digital certificate is genuine or fraudulent based on one or more of previously received digital certificates for the target site, confirmation certificates received from the certificate screening service, and additional characteristics of the digital certificates and/or the target site. | 09-18-2014 |
20140359281 | CERTIFICATE EVALUATION FOR CERTIFICATE AUTHORITY REPUTATION ADVISING - In many information security scenarios, a certificate issued by a certificate authority on behalf of a domain is presented to a client in order to verify the identity of the domain. However, due to a decentralized structure and incomplete coordination among certificate authorities, the presence and exploitation of security vulnerabilities to issue untrustworthy certificates may be difficult for an individual client to determine. Presented herein are techniques for advising clients of the trustworthiness of respective certificate authorities by evaluating the certificates issued by such certificate authorities for suspicious indicators, such as hashcode collisions with other certificates and public key re-use. A trust level may be identified of respective certificate authorities according to the presence or absence of suspicious indicators in the certificates issued by the certificate authority, and a certificate authority trust set may be distributed to advise clients of the trustworthiness of certificates issued by the respective certificate authorities. | 12-04-2014 |
20160036593 | ADVISING CLIENTS ABOUT CERTIFICATE AUTHORITY TRUST - In many information security scenarios, a certificate issued by a certificate authority may be presented to a client in order to assert a trust level of a certificated item, such as a message or a web page. However, due to a decentralized structure and incomplete coordination among certificate authorities, the presence and exploitation of security vulnerabilities to issue untrustworthy certificates may be difficult to determine, particularly for an individual client. Presented herein are techniques for advising clients of the reputations of respective certificate authorities by evaluating the certificates issued by such certificate authorities, such as the number and types of domains certified by the certificate; the number and pattern of certificates issued for the domain; and the certification techniques used to issue the certificates. Such evaluation enables a determination of a certificate authority trust level that may be distributed to the clients in a certificate authority trust set. | 02-04-2016 |
Patent application number | Description | Published |
20130288526 | SHIELDED INTEGRATED CONNECTOR MODULES AND ASSEMBLIES AND METHODS OF MANUFACTURING THE SAME - High electrical isolation connector apparatus and methods. In one embodiment, an integrated connector module (ICM) is disclosed. The ICM includes a number of adjacent electronic subassemblies that are shielded through the use of an insert body shield. The insert body shield beneficially increases electrical isolation between adjacent subassemblies thereby further mitigating possible electrical noise. The insert body shield is configured to be received within a slot formed within the connector housing. An internal shield is also included that is received in a slot of an insert body of the electronic sub-assemblies, thereby effectively shielding adjacent component receiving cavities from one another. Methods and apparatus are also disclosed which make use and take advantage of these shielded ICMs. For example, telecommunications/networking equipment that incorporates these ICMs are also disclosed. | 10-31-2013 |
20140125446 | SUBSTRATE INDUCTIVE DEVICE METHODS AND APPARATUS - An improved low cost and highly consistent inductive apparatus. In one embodiment, the low cost and highly consistent inductive apparatus addresses concerns with so called conductive anodic filament (CAF) that occurs within these laminate structures. These conditions include high humidity, high bias voltage (i.e. a large voltage differential), high-moisture content, surface and resin ionic impurities, glass to resin bond weakness and exposure to high assembly temperatures that can occur, for example, during lead free solder bonding application. Methods of manufacturing and using the aforementioned substrate inductive devices are also disclosed. | 05-08-2014 |
20140126162 | SUBSTRATE INDUCTIVE DEVICE METHODS AND APPARATUS - An improved low cost and highly consistent inductive apparatus. In one embodiment, the low cost and highly consistent inductive apparatus addresses concerns with so called conductive anodic filament (CAF) that occurs within these laminate structures by incorporating surface mountable chip chokes in the underlying circuit design, These conditions that result in undesirable CAF include high humidity, high bias voltage (i.e. a large voltage differential), high-moisture content, surface and resin ionic impurities, glass to resin bond weakness and exposure to high assembly temperatures that can occur, for example, during lead free solder bonding application. Methods of manufacturing and using the aforementioned substrate inductive devices are also disclosed. | 05-08-2014 |
20140127944 | METHODS AND APPARATUS FOR EXTENDING TRANSFORMER BANDWIDTH WITH MIXED-MODE COUPLING USING A SUBSTRATE INDUCTIVE DEVICE - An improved low cost and highly consistent inductive apparatus. In one embodiment, the low cost and highly consistent inductive apparatus addresses concerns with so called conductive anodic filament (CAF) that occurs within these laminate structures. These conditions include high humidity, high bias voltage (i.e. a large voltage differential), high-moisture content, surface and resin ionic impurities, glass to resin bond weakness and exposure to high assembly temperatures that can occur, for example, during lead free solder bonding application. In a variant, mixed mode coupling techniques are utilized in order to extend the underlying operating bandwidth of the substrate inductive device. Methods of manufacturing and using the aforementioned substrate inductive devices are also disclosed. | 05-08-2014 |
20140154920 | CHOKE COIL DEVICES AND METHODS OF MAKING AND USING THE SAME - A chip choke assembly which reduces the loss of magnetic flux from the underlying core portions. In one embodiment, this reduction is achieved by producing a chip choke assembly comprised of two or more chip choke portions that collectively form a closed magnetic path. Additionally, the chip choke assembly disclosed herein also allows for adequate clearance between adjacent pads so as to avoid arcing during high potential voltage conditions. Methods for manufacturing and using the aforementioned chip choke assembly are also disclosed. | 06-05-2014 |
20140232502 | FLEXIBLE SUBSTRATE INDUCTIVE APPARATUS AND METHODS - Flexible substrate inductive apparatus and methods for manufacturing, and utilizing, the same. In one embodiment, the flexible substrate inductive device includes a square shaped ferrite core having four (4) portions of flexible substrate disposed thereon. The disposal of the conductive traces onto the substrate utilizes highly controlled manufacturing processes such that the characteristics of the device, including the spacing and pitch of the windings, can be accurately controlled. The accurate placement of these conductive traces produces an inductive device with highly consistent performance capabilities as compared with traditional wire wound inductive devices. In addition to the performance capabilities provided via the use of flexible substrates utilizing highly automated processes, the flexible substrate inductive devices disclosed herein minimize/eliminate errors associated with traditional wire wound inductive devices. | 08-21-2014 |
20150206646 | METHODS AND APPARATUS FOR IMPROVING WINDING BALANCE ON INDUCTIVE DEVICES - Improved balance winding of electronic components including common-mode chokes and methods for using and manufacturing the same. In one embodiment, the common-mode choke includes a core and a pair of windings. The first winding and the second winding are alternatingly wound around the core with each respective winding being flipped at least once over the traverse direction of the winding barrel of the core. In one variant, the number of flips is dependent upon the core geometry, number of windings, and/or the specification limits on electrical balance. In another variant, the windings are first twisted and/or braided prior to being wound onto the winding barrel of the core. | 07-23-2015 |