Mxtran Inc.

Wan-Sheng Ni

Huan-Chin Luo

Chin-Sheng Lin

Fen-Ying Syu

Shu-Ching Huang

Chih-Hong Tsai

A data securing method, a data securing system and a data carrier are provided. The data securing method comprises an encryption procedure for encrypting a data or performing an authentication procedure. The encryption procedure includes the following steps. A first personal identification number is obtained. A first random number is generated. A first key is obtained according to the first personal identification number and the first random number. A first secure checksum is obtained according to the first key. The first random number and part of the first secure checksum are stored. The data is encrypted. The authentication procedure is performed according to the first key.

Password-based key derivation without changing key

An integrated circuit film comprising a circuit board and a control circuit is provided. The circuit board has an IC-installation part and a contact part and having a first surface and a second surface opposite to the first surface. The contact part comprises a first set of pads and a second set of pads. The first set of pads are located on the first surface for communicating with an electrical communication device. The second set of pads are located on the second surface for communicating with a smart card. The control circuit is mounted on the IC-installation part for communicating with the electrical communication device through one of the first set of pads configured in accordance with a single wire protocol (SWP), a communication protocol.

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Taipei, Taiwan

Wan-Sheng Ni