Hewlett-packard Development Company, L.p.

Sungkyunkwan University

Kwangwoo Lee

Yunho Lee

Dongho Won

Seungjoo Kim

An example image forming apparatus includes a communication device, a print engine to form an image, and a processor to, based on a first event in the image forming apparatus, generate first log data regarding the first event, generate first integrity inspection data regarding the first log data, generate a first signature value regarding the generated first integrity inspection data, and control the communication device to transmit the generated first log data, the first integrity inspection data and the first signature value to a server device.

Method for managing log generated in image forming apparatus

A verification method for encrypter operation and an electronic voting verification system using the same, which can verify the operation of the encrypter without having to execute corresponding decryption. In the verification method, the encrypter creates a plurality of ciphertexts corresponding to the plain text and presenting the ciphertexts to a user. The user selects one of the ciphertexts, the encrypter dispenses a certificate where information used by the encrypter during encryption is recorded, in response to the ciphertexts which are not selected by the user; and the user creates a ciphertext in person and verifies whether or not the user-created ciphertext is identical with the user-selected ciphertext. Then, the user can verify the encryption results inside and outside a polling booth.

Growing community of inventors

Gyeonggi-do, South Korea

Kwangwoo Lee