Abstract: A picture delivering system is disclosed including: a picture generating device for outputting a flat picture corresponding to an encrypted picture and for providing a picture ID corresponding to the encrypted picture; and a picture presenting device for utilizing an optical imaging device to capture an image of the flat picture to generate a captured picture, for obtaining the picture ID, and for transmitting the picture ID to the picture generating device. When the picture presenting device passed an entity identification procedure, the picture presenting device obtains a decryption information, processes the captured picture according to the decryption information to obtain a decrypted picture, and then utilizes a display device to display the decrypted picture. The decryption information comprises at least one of a seed key, a mask picture, and a transposition table corresponding to the picture ID.

Abstract: A dual-channel electronic signature system is disclosed, having a signature verification server, a signature requester device, and a hand-held device. The signature requester device calculates a characteristic value related to content of a target document, encodes the characteristic value and a destination message to generate a first graph, and outputs the first graph The hand-held device captures and decodes an image of the first graph to obtain the characteristic value, performs an electronic signature operation on the characteristic value to generate a signature data, encodes the signature data to generate a second graph, and transmits the second graph to a destination network address. If the signature data contained in the second graph passes a verification procedure of the signature verification server, the signature verification server transmits a verification graph corresponding to the second graph to the signature requester device.

Abstract: A picture delivering system is disclosed including: a picture generating device for outputting a flat picture corresponding to an encrypted picture and for providing a picture ID corresponding to the encrypted picture; and a picture presenting device for utilizing an optical imaging device to capture an image of the flat picture to generate a captured picture, for obtaining the picture ID, and for transmitting the picture ID to the picture generating device. When the picture presenting device passed an entity identification procedure, the picture presenting device obtains a decryption information, processes the captured picture according to the decryption information to obtain a decrypted picture, and then utilizes a display device to display the decrypted picture. The decryption information comprises at least one of a seed key, a mask picture, and a transposition table corresponding to the picture ID.

Abstract: A multi-function memory card is disclosed including: a memory card interface for coupling with a memory card connection port of a terminal device; a storage module for storing one or more specific files transmitted from the terminal device; a protocol converter for retrieving the one or more specific files from the storage module and extracting data contained in the one or more specific files; and a smart card module for conducting an operation on extracted data from the protocol converter using a private key to generate one or more response data and transmitting the one or more response data to the protocol converter; wherein the protocol converter converts the one or more response data into one or more response files and writes the one or more response files into the storage module so that the one or more response files are accessible by the terminal device.

Abstract: A multi-function memory card is disclosed including: a memory card interface for coupling with a memory card connection port of a terminal device; a storage module for storing one or more specific files transmitted from the terminal device; a protocol converter for retrieving the one or more specific files from the storage module and extracting data contained in the one or more specific files; and a smart card module for conducting an operation on extracted data from the protocol converter using a private key to generate one or more response data and transmitting the one or more response data to the protocol converter; wherein the protocol converter converts the one or more response data into one or more response files and writes the one or more response files into the storage module so that the one or more response files are accessible by the terminal device.