| Presentation | 2013-03-07 Information hiding for QR-code using Wet Paper Code Michiharu NIIMI, Hideki NODA, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | The matrix barcodes known as Quick Response (QR)codes, which are enable us to import printed digital information into smartphone or cell phone through its digital camera easily, are rapidly becoming widespread not only Japan but also Asia, Europe and America. Without typing long characters by hands, a URL of desired site is read in smaxtphone only pressing buttons in a few times. However, an attacker is easily able to lead malcious websites by putting a unautheticated OR code on a authenticated QR code. We study the tamper detection, which is performed by digital signature system based on public key cryptography, of QR code. In digital signature system, a hash value of a message is calculated firstly, and then the hash value is encrypted by a secret key which is a pair of public key cryptography system. Then, a sender sends the message and the encrypted hash value to a receiver. In the receiver side, the hash value of a sent message is calculated and the hash value with encrypted is decrypted using a public key which is a pair of public key cryptography system. The receiver can detect modification of the message by comparing the two hash values. In this situation, the problem is how the encrypted hash value is carryed with OR code. In this paper, we use Wet Paper code to carry it on OR code. We invesitigated the feasibility of our idea in the experiments, and confirmed that the information hiding based on Wet Paper code to OR code can be realised when we provide an image processing technique to read cell informaion of OR code with high accuracy. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | OR code / Digital signatgure / Wet Paper code / Tamper detection |
| Paper # | EMM2012-107 |
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| Conference Information | |
| Committee | EMM |
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| Conference Date | 2013/2/28(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Enriched Multimedia (EMM) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Information hiding for QR-code using Wet Paper Code |
| Sub Title (in English) | |
| Keyword(1) | OR code |
| Keyword(2) | Digital signatgure |
| Keyword(3) | Wet Paper code |
| Keyword(4) | Tamper detection |
| 1st Author's Name | Michiharu NIIMI |
| 1st Author's Affiliation | Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology() |
| 2nd Author's Name | Hideki NODA |
| 2nd Author's Affiliation | Faculty of Computer Science and Systems Engineering, Kyushu Institute of Technology |
| Date | 2013-03-07 |
| Paper # | EMM2012-107 |
| Volume (vol) | vol.112 |
| Number (no) | 467 |
| Page | pp.pp.- |
| #Pages | 6 |
| Date of Issue | |