Seiko Epson Corporation

Yuichi Ushiyama

Kazuto Mogami

Hideto Shimosato

A personal identity authenticating system where the registrant/cardholder and the registrar are assigned specific identifiers and secret keys and public keys that are mapped to the identifiers at the authentication support station (ASS). Personal identity to which the registrar identifier is attached is encrypted wit the registrant/cardholder's secret key. Personal identity data is embedded as an encrypted watermark image data by means of the registrar's secret key. Both encrypted identity and watermarked image data are recorded on the IC card. When authentication is required, the identity data with the registrar identifier is decrypted with the cardholder's public key that is supplied by the ASS. The registrar's public key is obtained from the ASS by using the decrypted registrar identifier. The registrar's public key permits the personal identity to be retrieved from the watermarked image data. Internal authentication is executed by matching between personal identity strings and image data.

Apparatus, system, and method for authenticating personal identity, computer readable medium having personal identity authenticating program recorded thereon, method of registering personal identity authenticating information, method of verifying personal identity authenticating information, and recording medium having personal identity authenticating information recorded thereon

A personal identity authenticating system where the registrant/cardholder and the registrar are assigned specific identifiers and secret keys and public keys that are mapped to the identifiers at the authentication support station (ASS). Personal identity to which the registrar identifier is attached is encrypted with the registrant/cardholder's secret key. Personal identity data is embedded as an encrypted watermark image data by means of the registrar's secret key. Both encrypted identity and watermarked image data are recorded on the IC card. When authentication is required, the identity data with the registrar identifier is decrypted with the cardholder's public key that is supplied by the ASS. The registrar's public key is obtained from the ASS by using the decrypted registrar identifier. The registrar's public key permits the personal identity to be retrieved from the watermarked image data. Internal authentication is executed by matching between personal identity strings and image data.

Apparatus, system and method for authenticating personal identity, computer readable medium having personal identity authenticating program recorded thereon method of registering personal identity authenticating information, method of verifying personal identity authenticating information, and recording medium having personal identity authenticating information recorded thereon

An information processing apparatus backs up status of a CPU 1- and content of a main memory 30 into a back-up memory 50 at the time of power-off, restores the data backed up in the back-up memory at the time of power-on to resume data processing, and informs the start of the resumed data processing or the termination of the data processing by a buzzer.

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Nagano-ken, Japan

Yuichi Ushiyama