|
|
JAIST Repository >
b. 情報科学研究科・情報科学系 >
b10. 学術雑誌論文等 >
b10-1. 雑誌掲載論文 >
このアイテムの引用には次の識別子を使用してください:
http://hdl.handle.net/10119/10297
|
| タイトル: | Non-interactive Opening for Ciphertexts Encrypted by Shared Keys |
| 著者: | Chen, Jiageng
Emura, Keita
Miyaji, Atsuko |
| キーワード: | KEM
DEM
public key encryption with non-interactive opening |
| 発行日: | 2011-11-01 |
| 出版者: | Springer |
| 誌名: | Lecture Notes in Computer Science |
| 巻: | 7043/2011 |
| 開始ページ: | 57 |
| 終了ページ: | 68 |
| DOI: | 10.1007/978-3-642-25243-3_5 |
| 抄録: | Let a sender Alice computes a ciphertext C of a message M by using a receiver Bob’s public key pk B . Damgård, Hofheinz, Kiltz, and Thorbek (CT-RSA2008) has proposed the notion public key encryption with non-interactive opening (PKENO), where Bob can make an non-interactive proof π that proves the decryption result of C under sk B is M, without revealing sk B itself. When Bob would like to prove the correctness of (C, M) (e.g., the information M sent to Bob is not the expected one), PKENO turns out to be an effective cryptographic primitive. A PKENO scheme for the KEM/DEM framework has also been proposed by Galindo (CT-RSA2009). Bob can make a non-interactive proof π that proves the decapsulation result of C under sk B is K without revealing sk B itself, where K is an encapsulation key of the DEM part. That is, no verifier can verify π without knowing K. This setting is acceptable if K is an ephemeral value. However, PKENO is not applicable if an encryption key is shared among certain users beforehand, and is used for a relatively long period before re-running the key agreement protocol, such as symmetric cryptosystems. In this paper, we define the notion secret key encryption with non-interactive opening (SKENO), and give a generic construction of SKENO from verifiable random function (VRF) and the Berbain-Gilbert IV-dependent stream cipher construction (FSE2007). Bob can make a non-interactive proof π that proves the decryption result of C under K is M, without revealing K itself. |
| Rights: | This is the author-created version of Springer, Jiageng Chen, Keita Emura, and Atsuko Miyaji, Lecture Notes in Computer Science, 7043/2011, 2011, 57-68. The original publication is available at www.springerlink.com, http://dx.doi.org/10.1007/978-3-642-25243-3_5 |
| URI: | http://hdl.handle.net/10119/10297 |
| 資料タイプ: | author |
| 出現コレクション: | b10-1. 雑誌掲載論文 (Journal Articles)
|
このアイテムのファイル:
| ファイル |
記述 |
サイズ | 形式 |
|---|
| 17286.pdf | | 121Kb | Adobe PDF | 見る/開く |
|
当システムに保管されているアイテムはすべて著作権により保護されています。
|
