Samsung Electronics Co., Ltd.

Won-Churl Jang

Dong-Jin Park

Myung-Hee Kang

Dong-jae Lee

Deok-soo Park

Woon-Ki Lee

Jeong-Yeop Kim

Jun-sung Yoon

A portable biometric authentication device communicates with a terminal device using near field communication (NFC). The portable biometric authentication device includes; a NFC antenna, a power supply circuit that generates at least one power voltage in response to an electromagnetic field generated by the terminal device and received via the NFC antenna, a sensor subsystem that operates in response to the at least one power voltage and includes a biometric sensor that acquires biometric information from a user, and a control subsystem that operates in response to the at least one power voltage and includes a NFC controller that controls the communication of the biometric information to the terminal device using the NFC antenna.

Portable biometric authentication device and terminal device using near field communication

A method of updating firmware of a near field communication (NFC) device includes copying metadata, which is included in a firmware image file, from an application processor to the NFC device. One of a certification success signal and a certification fail signal is provided from the NFC device to the application processor after the NFC device verifies an integrity of the metadata. Firmware data, which is included in the firmware image file, is copied from the application processor to the NFC device when the application processor receives the certification success signal from the NFC device.

Method and apparatus for near field communication

A method of operating a mobile device comprises executing a trusted service application in a trusted operating system through secure access, executing a trusted web server module in the trusted operating system, wherein the trusted web server module is configured to transfer information using an internet protocol and the information is generated by execution of the trusted service application, and executing a user application in a rich operating system through normal access, wherein the user application is configured to relay communication between a remote web server and the trusted web server module through a security session.

Operation of mobile device as trusted mobile web client or trusted mobile web server

In a secure boot method, an initial boot loader verifies a first digital signature included in a first boot loader using a public key. The first boot loader is executed if the first digital signature is valid. The first boot loader verifies a first message authentication code included in a second boot loader using a unique key. The second boot loader is executed if the first message authentication code is valid.

Method for generating a secured boot image including an update boot loader for a secured update of the version information

A security system is provided. The security system includes a terminal system and a smart card. The terminal system generates relative fingerprint information of a user from absolute fingerprint information of the user, determines a similarity between the generated relative feature information of the user and registered relative fingerprint information of a smart card owner transmitted from the smart card to generate variation information, and applies the variation information to the user absolute fingerprint information to generate modified user absolute fingerprint information. The smart card determines the similarity between the modified user absolute feature information and registered absolute feature information of the smart card owner to perform a certification operation.

Security system and method for security certification thereof, method of generating relative character information, terminal system, and smart card

A method of determining acceptability of an image of a fingerprint to be analyzed, includes dividing the image into a plurality of blocks, determining a focus for each block, determining a validity of a block, the block being valid if the focus is sufficient, otherwise the block being invalid, totaling a number of valid blocks in the image, and determining a validity of the image, the image being valid if a number of valid blocks is sufficient.

Apparatus and method for determining the acceptability of a fingerprint image to be analyzed

In a Gabor filter, a modified Gabor mask function is generated from an original Gabor mask function. A convolution of an image is performed with the modified Gabor mask function to generate a filtered image. The modification of the original Gabor mask function to the modified Gabor mask function reduces a number of calculations during such a convolution.

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Seoul, South Korea

Won-Churl Jang