| Presentation | 2020-03-17 Method of Cloning Attack against Image Recognizer and Its Countermeasure Shouta Kinbara, Kazuaki Nakamura, Naoko Nitta, Noboru Babaguchi, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Recently, cloud-based image recognition services are getting popular. A server of these services has a sophisticated image recognizer which is used to recognize images sent from client users and return the recognition results to the users. However, the server might suffer from a new type of attacks called cloning attack, in which an attacker sends a lot of images to the server and receives their recognition results to train a new recognizer that mimics the server’s original recognizer. The goal of this paper is to investigate a concrete method of cloning attack and its countermeasure. Naively, the server can prevent cloning attack by intentionally altering some percentage of its recognition results. This strategy is called intentional misrecognition, which could be failed if the attacker can estimate whether each image was intentionally misrecognized or not. We firstly propose a method to realize the estimation, using near-duplicate images. Then, we secondly propose a method of detecting the near-duplicate images as a countermeasure. Experimental results showed that both the methods are workable. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | image recognition / cloning attack / cloned recognizer / intentional misrecognition / near-duplicate image |
| Paper # | PRMU2019-94 |
| Date of Issue | 2020-03-09 (PRMU) |
| Conference Information | |
| Committee | PRMU / IPSJ-CVIM |
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| Conference Date | 2020/3/16(2days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
| Topics (in English) | |
| Chair | Yoichi Sato(Univ. of Tokyo) |
| Vice Chair | Toru Tamaki(Hiroshima Univ.) / Akisato Kimura(NTT) |
| Secretary | Toru Tamaki(NTT) / Akisato Kimura(OMRON SINICX) |
| Assistant | Yusuke Uchida(DeNA) / Takayoshi Yamashita(Chubu Univ.) |
| Paper Information | |
| Registration To | Technical Committee on Pattern Recognition and Media Understanding / Special Interest Group on Computer Vision and Image Media |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Method of Cloning Attack against Image Recognizer and Its Countermeasure |
| Sub Title (in English) | |
| Keyword(1) | image recognition |
| Keyword(2) | cloning attack |
| Keyword(3) | cloned recognizer |
| Keyword(4) | intentional misrecognition |
| Keyword(5) | near-duplicate image |
| 1st Author's Name | Shouta Kinbara |
| 1st Author's Affiliation | Osaka University(Osaka Univ.) |
| 2nd Author's Name | Kazuaki Nakamura |
| 2nd Author's Affiliation | Osaka University(Osaka Univ.) |
| 3rd Author's Name | Naoko Nitta |
| 3rd Author's Affiliation | Osaka University(Osaka Univ.) |
| 4th Author's Name | Noboru Babaguchi |
| 4th Author's Affiliation | Osaka University(Osaka Univ.) |
| Date | 2020-03-17 |
| Paper # | PRMU2019-94 |
| Volume (vol) | vol.119 |
| Number (no) | PRMU-481 |
| Page | pp.pp.151-156(PRMU), |
| #Pages | 6 |
| Date of Issue | 2020-03-09 (PRMU) |