A system may include an imaging system coupled to a host subsystem. The imaging system may include an image sensor that provides image frames to the host subsystem. The image sensor may include a data authentication subsystem that appends corresponding authentication data to each of the image frames. Each set of authentication data may be generated based on a subset of the image frame data (e.g., corresponding to image data generated by pixels defined by a sparse region-of-interest within the pixel array). The host subsystem may securely provide region-of-interest parameters to the image sensor to update the sparse region-of-interest in an adaptive manner to account for factors such as computational load of the host subsystem and authentication coverage for the entire pixel array.

An example display device for securing graphics outputs includes: a checker to check whether a secure output marker is located in a pre-determined position in graphical information of a digital image; a verifier to verify whether first data in the secure output marker matches actual data in a trusted output area of the digital image; and autonomous indicator control logic to activate a hardware-based trusted output indicator when the first data matches the actual data, the autonomous indicator control logic not accessible by computing applications executing on a system in communication with the display device.

An image scanning apparatus and method for protecting personal information are provided. The image scanning apparatus may include an image sensor which scans a manuscript, a memory, and a processor to generate a scan image using a signal that is output from the image sensor, perform a masking process for personal information included in the generated scan image, generate scan data that includes additional information for recovering the masked personal information and the masked scan image, and store the same in the memory.

The present disclosure provides an image management method and apparatus, and a storage medium. The method includes: receiving a download request of a first client device for a first image, and verifying whether the first client device has a download authorization of the first image; in response to the first client device having the download authorization, adding an encryption mark to the first image by using identity information of the first client device to obtain a second image; generating a download identification code for uniquely identifying the second image, and storing the download identification code; and transmitting the second image to the first client device.

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.

In one embodiment, a method for 3D digital watermarking for a triangular mesh using one or more key parameters is disclosed including forming a Hamiltonian path of a desired length around a selected vertex in a selected direction of a spiral; marking the selected vertex a dead end if there is a deadlock and continuing the spiral; and applying a watermark by introducing points in a path order on edges of the spiral, wherein information is encoded at a partition of adjacent triangles at one or more of the points.

An image forming apparatus has an input portion that receives original image data, a control portion that generates output image data based on the original image data, a printing portion that performs printing based on the output image data, and a storage portion. The storage portion stores associated color information that defines colors associated with a plurality of prescribed processes respectively. When generating the output image data, the control portion, if the original image data includes a marked region, performs, out of the plurality of processes, the process associated with the color of the marked region.

A cell phone is disclosed for acquiring information to be transmitted to a receiving facility and for transmitting such thereto. A capture device captures information from an external source. A processor is provided for associating with the captured information a representation of the date and time of the capture of the information, such that the representation of the date and time information in association with the captured information forms augmented captured information. The processor also places the augmented captured information in association with subscriber information in a transmission of the augmented captured information to a receiving facility requiring such subscriber information. A transmitter transmits the transmission including the augmented captured information and the subscriber information to the receiving facility. An encryptor encrypts the augmented captured information with a symmetrical encryption algorithm to provide encrypted augmented captured information in the transmission with the subscriber information.

An information processing apparatus includes: a non-volatile memory; and a hardware processor that controls the non-volatile memory, wherein the hardware processor determines whether communication speed of a communication path to the non-volatile memory is equal to or less than a threshold value and encrypts the data transmitted to the non-volatile memory when the communication speed is determined to be equal to or less than the threshold value.