Other

Blackberry Corporation

Riverside Research Institute

Kelce Steven Wilson

Shirook M Ali

Shalini Suresh Periyalwar

Susan M Gaschke

James Earl Womack

James Paul Warden

Edward A Wilson

Kristine A Wilson

Jeff A Hughes

Lawrence Plonsker

Christopher Labrador

Young Ae Kim

Jason Dean Sattler

Per Malmbak

Robyn L Wilson

Youngae Kim

A system and method are disclosed for rendering printed documents tamper evident. Examples render classes of documents tamper evident with cryptographic level security or detect tampering events, where such security was previously unavailable, for example, in documents printed using common printers without special paper or ink. Examples enable proving the date of document content without the need for expensive third party archival, including documents held, since their creation, entirely in secrecy or in untrustworthy environments, such as on easily-altered, publicly-accessible internet sites. Examples can use a document's prior registration date in a blockchain to establish a no-later than date-of-existence for that document. Examples can extend the useful life of integrity verification algorithms, such as hash functions, even when applied to binary executable files. Examples can efficiently identify whether multiple document versions are substantially similar, even if they are not identical, thus potentially reducing storage space requirements.

Reproducing hash values from printed documents to validate with a blockchain

Permissioned blockchains with off-chain storage establish integrity and no-later-than date-of-existence for documents, leveraging records containing hash values of documents. When a document's integrity or date is challenged, a new hash value is compared with a record in the blockchain. Proving date-of-existence (via hash value in a publication and/or SMS) for the block containing the record establishes no-later-than date-of-existence for the document. Permissioning monetizes operations, enforcing rules for submission rights and content, thereby precluding problematic material (privacy, obscenity, malicious logic, copyright violations) that threatens long-term viability. Compact records and off-chain storage in a document corral (with quarantine capability) preserve document confidentiality and ease storage burdens for distributed blockchain copies. Using multiple hash values for each document hardens against preimage attacks with quantum computing. Daisy chaining records establishes that relationships existed among documents at registration. Self-addressed blockchain registration (SABRe) permits documents to self-identify their blockchain record address (block ID, index).

Blockchain with daisy chained records, document corral, quarantine, message timestamping, and self-addressing

A system and method are disclosed for rendering published documents tamper evident. Embodiments render classes of documents tamper evident with cryptographic level security or detect tampering events, where such security was previously unavailable, for example, in documents printed using common printers without special paper or ink. Embodiments enable proving the date of document content without the need for expensive third party archival, including documents held, since their creation, entirely in secrecy or in untrustworthy environments, such as on easily-altered, publicly-accessible internet sites. Embodiments can use a document's prior registration date in a blockchain to establish a no-later than date-of-existence for that document. Embodiments can extend the useful life of integrity verification algorithms, such as hash functions, even when applied to binary executable files. Embodiments can efficiently identify whether multiple document versions are substantially similar, even if they are not identical, thus potentially reducing storage space requirements.

Registering published documents in a blockchain

Systems and methods are disclosed which use a block chain ('blockchain') to enable the establishment of file dates and the absence of tampering, even for documents held in secrecy and those stored in uncontrolled environments, but which does not require trusting a timestamping authority or document archival service. A trusted timestamping authority (TTSA) may be used, but even if the TTSA loses credibility or a challenger refuses to acknowledge the validity of a timestamp, a date for an electronic document may still be established. Systems and methods are disclosed which enable detection of file duplication in large collections of documents, which can improve searching for documents within the large collection.

PEDDaL blockchaining for document integrity verification preparation

A system and method are disclosed for rendering published documents tamper evident. Embodiments render classes of documents tamper evident with cryptographic level security or detect tampering events, where such security was previously unavailable, for example, in documents printed using common printers without special paper or ink. Embodiments enable proving the date of document content without the need for expensive third party archival, including documents held, since their creation, entirely in secrecy or in untrustworthy environments, such as on easily-altered, publicly-accessible internet sites. Embodiments can use a document's prior registration date in a blockchain to establish a no-later-than date-of-existence for that document. Embodiments can extend the useful life of integrity verification algorithms, such as hash functions, even when applied to binary executable files. Embodiments can efficiently identify whether multiple document versions are substantially similar, even if they are not identical, thus potentially reducing storage space requirements.

Authenticating printed paper documents and websites against a blockchain record

A system and method are disclosed for rendering published documents tamper evident. Embodiments render classes of documents tamper evident with cryptographic level security or detect tampering, where such security was previously unavailable, for example, documents printed using common printers without special paper or ink. Embodiments enable proving the date of document content without the need for expensive third party archival, including documents held, since their creation, entirely in secrecy or in untrustworthy environments, such as on easily-altered, publicly-accessible internet sites. Embodiments can extend, by many years, the useful life of currently-trusted integrity verification algorithms, such as hash functions, even when applied to binary executable files. Embodiments can efficiently identify whether multiple document versions are substantially similar, even if they are not identical, thus potentially reducing storage space requirements.

Page substitution verification preparation

A system for restricting operation of wireless devices, for example cell phones, comprises a controller and a plurality of sensors. The system restricts device usage, while permitting emergency phone calls, for example 911 calls. The sensors receive transmissions from devices, and use the transmissions for identification and determining whether a device is within a restricted zone. One disclosed method is triangulation, using time of arrival of transmissions at the sensors. If the device is within the zone, the controller sends device identification, and possibly a customized restriction request, to a remote node, for example a control node of a cell phone network operator. The operator then uses its network resources to implement the requested restrictions. Communication between the controller and the remote node is secure, possibly encrypted, to minimize malicious interference. A wireless control can define vertices of the zone and exempt certain devices from restrictions. Jamming is not required.

Hacker-resistant denial of wireless device operation in restricted areas

An authentication method, system and device are provided to continuously collect dynamic personal identification data (DPID) samples through a user device by using one or more sensors to continuously collect biometric and location data samples associated with the user and then securely transfer the DPID samples to a central authentication server where attributes of the DPID samples may be captured and incorporated as part of a challenge-response pair which requests an arbitrarily generated N-tuple of the DPID samples from a predetermined time interval from the user device that is unique to the user and dynamic based on the sensed data and the time-interval of collection.

Method and apparatus to provide continuous authentication based on dynamic personal information

Systems and methods are disclosed which enable the establishment of file dates and the absence of tampering, even for documents held in secrecy and those stored in uncontrolled environments, but which does not require trusting a timestamping authority or document archival service. A trusted timestamping authority (TTSA) may be used, but even if the TTSA loses credibility or a challenger refuses to acknowledge the validity of a timestamp, a date for an electronic document may still be established. Systems and methods are disclosed which enable detection of file duplication in large collections of documents, which can improve searching for documents within the large collection.

Proving age and integrity of website pages

Systems and methods are disclosed which enable more accurate examination of industrial diagnostic images, for example x-ray, ultrasound and terahertz camera images. The systems and methods highlight anomalies that have changed between the collection times of two or more diagnostic images, and can also provide objective scoring of the degree of change.

Diagnostic image change highlighter

Public electronic document dating list

A radiation power level control scheme for a wireless user equipment (UE) device. In one embodiment, a method comprises determining that a current transmission event involving the wireless UE device is commenced outside a time duration from a last transmission event. If so, responsive to the determining, the method involves disregarding or resetting a power data history associated with the wireless UE device in computing a Specific Absorption Rate (SAR) value for the wireless UE device during the current transmission event. Otherwise, at least a portion of the power data history may be used in computing the SAR values.

Radiation power level control system and method for a wireless communication device based on a tracked radiation history

Mobile devices may be subject to different operational constraints in different geographies or circumstances. For example, power levels may be limited for transmissions in certain countries. The geographic position of a mobile device may be identified and used for determining the applicable local regulations. The local regulations may allow for different operational constraints depending on whether a device is located indoors or outdoors. Accordingly, a determination of indoor/outdoor state may be used to maximize device performance while also complying with appropriate regulations/circumstances.

Detecting indoor and outdoor usage of a mobile device

A radiation power level compliance and control scheme for a wireless user equipment (UE) device including one or more tunable elements. The wireless UE device comprises a component configured to detect one or more changes with respect to at least one operational parameter associated with the wireless UE device. A component is provided for determining that a tunable action is required with respect to at least one of the tunable elements. Upon defining one or more tunable element settings, a component is configured to determine a Specific Absorption Rate (SAR) value, which is compared against an acceptable limit. If the SAR is within the limit, appropriate tuning control signals are provided to the tunable elements according to the defined tunable element settings. If the SAR is not within the limit or is about to exceed the limit, then the tunable element settings may be changed and retested.

Growing community of inventors

Murphy, TX, United States of America

Kelce Steven Wilson