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Attribute-based encryption for fine-grained access control of encrypted data (2006)
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| Venue: | In Proc. of ACMCCS’06 |
| Citations: | 521 - 23 self |
BibTeX
@INPROCEEDINGS{Goyal06attribute-basedencryption,
author = {Vipul Goyal and Amit Sahai and Omkant Pandey and Brent Waters},
title = {Attribute-based encryption for fine-grained access control of encrypted data},
booktitle = {In Proc. of ACMCCS’06},
year = {2006},
pages = {89--98}
}
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Abstract
As more sensitive data is shared and stored by third-party sites on the Internet, there will be a need to encrypt data stored at these sites. One drawback of encrypting data, is that it can be selectively shared only at a coarse-grained level (i.e., giving another party your private key). We develop a new cryptosystem for fine-grained sharing of encrypted data that we call Key-Policy Attribute-Based Encryption (KP-ABE). In our cryptosystem, ciphertexts are labeled with sets of attributes and private keys are associated with access structures that control which ciphertexts a user is able to decrypt. We demonstrate the applicability of our construction to sharing of audit-log information and broadcast encryption. Our construction supports delegation of private keys which subsumes Hierarchical Identity-Based Encryption (HIBE). E.3 [Data En-
Keyphrases
fine-grained access control attribute-based encryption private key hierarchical identity-based encryption coarse-grained level access structure sensitive data new cryptosystem audit-log information broadcast encryption fine-grained sharing third-party site key-policy attribute-based encryption data en
