The Boeing Company

Hewlett-packard Development Company, L.p.

Kapaleeswaran Viswanathan

Fred L Templin

Arun Ayyagari

Shubham Tripathi

Gregory T Cooper

Anjaneyulu Seetha Rama Kuchibhotla

Jitendra Kumar

Amitabh Saxena

Nagabhushana Ayyanahal Matad

Vijayasarathy Rajagopalan

A method for resilient file transfer comprises transmitting, by a source, a fragment of a file to a destination. The method further comprises transmitting, by the destination, an acknowledgement to the source, when the destination receives the fragment. Also, the method comprises calculating a current delay measurement (δ), which is a difference of a time the fragment is transmitted from the source and a time the acknowledgement is received by the source, when the source receives the acknowledgement. Additionally, the method comprises calculating a current delay estimation (δ), which is a sum of a previous delay estimation (δ) weighted by a variable alpha (α) and the current delay measurement (δ) weighted by a variable beta (β), when the source receives the acknowledgement. Further, the method comprises determining whether a subsequent fragment transmitted should be retransmitted by the source to the destination by using the current delay estimation (δ).

Resilient file transfer (ResiFT) mechanism for networked communication

Techniques for projecting images onto fabricated surfaces. One or more electronic files containing an engineering diagram that describes a three-dimensional shape of the fabricated surface are retrieved. Warp transformation information for transforming images to be projected onto the fabricated surface is calculated, based on the engineering diagram, positional information defining a three-dimensional position of a projection device, relative to the fabricated surface, and positional information of an intended viewer relative to the fabricated surface. The warp transformation information is applied to one or more images to generate one or more transformed images. Embodiments project, using the projection device, the one or more transformed images onto the fabricated surface.

Projecting images and videos onto engineered curved surfaces

An underwater communications system includes a network communication interface, one or more computer processors, and a memory containing computer program code that, when executed by operation of the one or more computer processors, performs an operation. The operation includes storing a plurality of data packets to be transmitted to a destination device, determining that data communications over the network communication interface have become available for a first network node, and determining that the first network node has a valid security credential. Additionally, the operation includes, upon determining that the first network node has the valid security credential, transmitting the stored plurality of data packets over the network communication interface to the first network node. The first network node is configured to employ store-carry-and-forward data messaging techniques to transmit the plurality of data packets towards the destination device.

Secure and disruption-tolerant communications for unmanned underwater vehicles

An underwater communications system includes a network communication interface, one or more computer processors, and a memory containing computer program code that, when executed by operation of the one or more computer processors, performs an operation. The operation includes storing a plurality of data packets to be transmitted to a destination device, determining that data communications over the network communication interface have become available for a first network node, and determining that the first network node has a valid security credential that has not been revoked by an access granting authority. Additionally, the operation includes, upon determining that the first network node has the valid security credential, transmitting the stored plurality of data packets over the network communication interface to the first network node. The first network node is configured to employ store-carry-and-forward data messaging techniques to transmit the plurality of data packets towards the destination device.

A system is provided for secure data transmission. The system stores a public master key, private decryption key and secure messaging module for securely transmitting and receiving a digital model data file for transmission via a work order message. For transmitting and receiving the work order message, the system generate public encryption keys using a key generation algorithm in which each of the public encryption keys are unique to a designated message recipient and generated using an input including the public master key, a validity period, and an identifier of the designated message recipient. The system may also store a revocation list that includes identifiers of message recipients that have revoked access to the public master key or private decryption key, and based thereon determine whether or not to encrypt and transmit the work order message, or receive and decrypt the work order message.

Secured data transmission using identity-based cryptography

In one example of the disclosure, a request for an authorization token is received via a network from a first computing device having authorization, to utilize functionality at a second computing device. The token is to provide for a third computing device a limited authorization to utilize the functionality. The token is sent to the third device. Subject data and the token are received from the third device. Validity of the token is confirmed. The subject data is sent to the second device for the second device to utilize the functionality in association with the subject data, with security accountability traceable to the first device.

Providing device functionality utilizing authorization tokens

A communication access control system () includes at least one access control cell (), implemented on a computing entity, for computing random input addresses () and random output addresses () upon a request of a system user (). The input and output addresses are based on a cryptographic key () held by a service facility () associated with the at least one access control cell ().

Access control

Presented is a method, for a participant in a secure document workflow, of generating workflow information for authenticating a document. The method comprises: receiving an image of the document; generating workflow information for the document image, including a document image descriptor dependent upon the appearance of the document image for later verifying the authenticity of a version of the document image that has been printed and scanned, the verification comprising electronically combining or comparing the document image descriptor with said version of the document image; generating a digital signature for later verifying the authenticity of the workflow information, the digital signature being derived from the workflow information using a cryptographic key associated with the participant; adding the digital signature to the workflow information; and communicating the document image and the workflow information to another workflow participant.

Growing community of inventors

Bengaluru, India

Kapaleeswaran Viswanathan