抄録
Since many people consume multimedia content (music, movie etc.) on mobile devices, mobile DRM becomes important, which controls digital content usage under wireless environment. In a typical DRM model, a block cipher is usually used to encrypt multimedia content because of its reasonable security and performance. However, encrypting multimedia content using a block cipher in mobile environment requires much computation power and energy due to its huge size. It is critical problems because users want long playtime and quick responsiveness with random access. In this paper, we propose an efficient multimedia content encryption scheme for mobile handheld devices (EMCEM), which uses a block cipher to encrypt some parts of content and a stream cipher to encrypt the others. We also use different stream cipher key to improve security. EMCEM accommodates the current DRM architecture, supports random access to a media file, and has flexibility to determine easily the trade-off between performance and security. Experimental results have shown that EMCEM has much better performance than encrypting content completely using a block cipher.
本文言語 | English |
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ホスト出版物のタイトル | Proceedings of the International Conference on Information Science and Security, ICISS 2008 |
ページ | 108-114 |
ページ数 | 7 |
DOI | |
出版ステータス | Published - 2007 |
外部発表 | はい |
イベント | International Conference on Information Science and Security, ICISS 2008 - Seoul, Korea, Republic of 継続期間: 2008 1月 10 → 2008 1月 12 |
Other
Other | International Conference on Information Science and Security, ICISS 2008 |
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国/地域 | Korea, Republic of |
City | Seoul |
Period | 08/1/10 → 08/1/12 |
ASJC Scopus subject areas
- コンピュータ サイエンス(全般)
- コンピュータ ネットワークおよび通信