Image reading apparatus and computer program product

{
  "publication_number": "US2007165273A1",
  "country": "US",
  "kind": "A1",
  "title": "Image reading apparatus and computer program product",
  "abstract": "A recording unit records an operation log. A storing unit included in a temper-resistant chip stores therein a secret key unique to an image reading apparatus. An encrypting unit included in the temper-resistant chip encrypts recorded operation log with stored secret key. A transmitting unit transmits information including encrypted operation log to a server.",
  "claims": [
    "1. An image reading apparatus that is connected to a server via a network, the image reading apparatus comprising: a recording unit that records an operation log; a tamper-resistant chip including a storing unit that stores therein a secret key unique to the image reading apparatus; and an encrypting unit that encrypts recorded operation log with stored secret key; and a transmitting unit that transmits information including encrypted operation log to the server.",
    "2. The image reading apparatus according to claim 1, further comprising: an acquiring unit that acquires time information from a time server that is connected to the image reading apparatus via the network, wherein the chip further includes an attaching unit that attaches acquired time information to the recorded operation log, and the encrypting unit encrypts time-information-attached operation log with the stored secret key.",
    "3. The image reading apparatus according to claim 1, further comprising: at least one of a temperature sensor, a humidity sensor, and an altitude sensor.",
    "4. The image reading apparatus according to claim 1, wherein the operation log includes at least one of document reading parameter, number of read documents, document reading time, error code, error occurrence time, user-identification information, room temperature, apparatus temperature, humidity, and altitude.",
    "5. The image reading apparatus according to claim 1, further comprising: a generating unit that generates image identification information for identifying image data read by the image reading apparatus, wherein the chip further includes an identification-information attaching unit that attaches generated image identification information to read image data, and the encrypting unit further encrypts image-identification-information-attached image data with the stored secret key.",
    "6. The image reading apparatus according to claim 5, wherein the operation log includes at least one of document reading parameter, number of read documents, document reading time, error code, error occurrence time, and user-identification information.",
    "7. The image reading apparatus according to claim 5, further comprising: at least one of a temperature sensor, a humidity sensor, and an altitude sensor, wherein the operation log includes at least one of room temperature detected by the temperature sensor, apparatus temperature detected by the temperature sensor, humidity detected by the humidity sensor, and altitude detected by the altitude sensor.",
    "8. The image reading apparatus according to claim 5, further comprising: either one of an acquiring unit that acquires time information from a time server that is connected to the image reading apparatus via the network; and an updating unit that updates a serial number stored of the image reading apparatus every time the image reading apparatus reads the image data, wherein the image identification information includes apparatus-specific information unique to the image reading apparatus and either one of acquired time information and updated serial number.",
    "9. An image reading apparatus that is connected to a server via a network, the image reading apparatus comprising: a recording unit that records an operation log; a generating unit that generates a hash value corresponding to recorded operation log; a tamper-resistant chip including a storing unit that stores a secret key unique to the image reading apparatus; and an encrypting unit that encrypts generated hash value with stored secret key; and a transmitting unit that transmits information including encrypted hash value and the recorded operation log to the server.",
    "10. The image reading apparatus according to claim 9, further comprising: an acquiring unit that acquires time information from a time server that is connected to the image reading apparatus via the network, wherein the chip further includes an attaching unit that attaches acquired time information to the recorded operation log, and the generating unit generates the hash value corresponding to time-information-attached operation log.",
    "11. The image reading apparatus according to claim 9, further comprising: at least one of a temperature sensor, a humidity sensor, and an altitude sensor.",
    "12. The image reading apparatus according to claim 9, wherein the operation log includes at least one of document reading parameter, number of read documents, document reading time, error code, error occurrence time, user-identification information, room temperature, apparatus temperature, humidity, and altitude.",
    "13. The image reading apparatus according to claim 9, further comprising: a generating unit that generates image identification information for identifying image data read by the image reading apparatus, wherein the chip further includes an identification-information attaching unit that attaches generated image identification information to read image data, and the generating unit generates the hash value corresponding to image-identification-information-attached image data.",
    "14. The image reading apparatus according to claim 13, wherein the operation log includes at least one of document reading parameter, number of read documents, document reading time, error code, error occurrence time, and user-identification information.",
    "15. The image reading apparatus according to claim 13, further comprising: at least one of a temperature sensor, a humidity sensor, and an altitude sensor, wherein the operation log includes at least one of room temperature detected by the temperature sensor, apparatus temperature detected by the temperature sensor, humidity detected by the humidity sensor, and altitude detected by the altitude sensor.",
    "16. The image reading apparatus according to claim 13, further comprising: either one of an acquiring unit that acquires time information from a time server that is connected to the image reading apparatus via the network; and an updating unit that updates a serial number stored of the image reading apparatus every time the image reading apparatus reads the image data, wherein the image identification information includes apparatus-specific information unique to the image reading apparatus and either one of acquired time information and updated serial number.",
    "17. A computer program product comprising a computer usable medium having computer readable program codes embodied in the medium that when executed cause a computer to execute: recording an operation log; encrypting recorded operation log with a secret key that is unique to an image reading apparatus, the secret key being stored in a tamper-resistant chip installed in the image reading apparatus; and transmitting encrypted operation log to a server that is connected to the image reading apparatus via a network.",
    "18. The computer program product according to claim 17, wherein the computer readable program codes further cause the computer to execute: reading image data; generating image identification information for identifying read image data; and attaching generated image identification information to the read image data, the encrypting includes encrypting image-identification-information-attached image data with stored secret key, and the transmitting includes transmitting encrypted image data to the server.",
    "19. A computer program product comprising a computer usable medium having computer readable program codes embodied in the medium that when executed cause a computer to execute: recording an operation log; generating a hash value corresponding to recorded operation log; encrypting generated hash value with a secret key that is unique to an image reading apparatus, the secret key being stored in a tamper-resistant chip installed in the image reading apparatus; and transmitting encrypted hash value and the recorded operation log to a server that is connected to the image reading apparatus via a network.",
    "20. The computer program product according to claim 19, wherein the computer readable program codes further cause the computer to execute: reading image data; generating image identification information for identifying read image data; and attaching generated image identification information to the read image data, the generating includes generating the hash value corresponding to image-identification-information-attached image data, and the transmitting includes transmitting the encrypted hash value and the image-identification-information-attached image data to the server."
  ],
  "description_excerpt": "1. Field of the Invention\n\nThe present invention relates to a technology for securing reliability and authenticity of an operation log of an image reading apparatus.\n\n2. Description of the Related Art\n\nTechnologies for recording log information in an image reading apparatus used in a network system has been proposed. For example, Japanese Patent Application Laid-open No. H11-331469 discloses a technology for storing log information, such as a parameter for reading a document, a transmission parameter, and a destination of the transmission, and using the log information as required, so that operation efficiencies of re-using the same system, checking usage status, and performing a maintenance against a failure can be improved in the image reading apparatus in the network system. Japanese Patent Application Laid-open No. 2003-189054 discloses a technology for a method of managing a network scanner that can record log information and can reflect a reading mode that is frequently used by a user to the scanner as a default mode.\n\nFor a security enhancement independently promoted by each enterprise, a trusted computing group (TCG) as an industry organization of the enterprises that provide technologies for personal computer (PC) platforms contributes to develop and promote new hardware/software having higher reliability and security. Japanese Patent Application Laid-open No. 2005-317026 discloses a technology with which the TCG determines a specification of a trusted platform module (TPM) chip related to a security chip for a computing platform.",
  "cpc": [
    "H04N 1/44",
    "H04N 1/4413",
    "H04N 1/4426"
  ],
  "ipc": [
    "G06F 21/60",
    "G06F 21/62",
    "G06F 21/64",
    "G06F 21/86",
    "G06F 3/12",
    "G06K 15/00",
    "H04N 1/44"
  ],
  "assignees": [
    "Fujitsu Ltd",
    "PFU Ltd"
  ],
  "inventors": [
    "Kazutoshi Miyamura",
    "Seigo Kotani"
  ],
  "filing_date": "2007-01-11",
  "publication_date": "2007-07-19",
  "priority_date": "2006-01-18",
  "application_number": "US-62238207-A",
  "family_id": "38219871",
  "cited_by_count": 7,
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}