Abstract
We introduce a variant of ciphertext-policy attribute-based encryption called group-oriented ciphertext-policy attribute-based encryption (GO-CP-ABE). In the new notion, message is encrypted under an access structure over attributes and users are described by their attributes. In addition, users are divided into different groups and each user belongs to only one group. Users within the same group can merge their attributes to decrypt successfully, if the union of their attributes satisfies the access structure embedded in the ciphertext. But users from different groups cannot realise this cooperative decryption. We define the security model of GO-CP-ABE and present an efficient design by revising an existing CP-ABE scheme.
| Original language | English |
|---|---|
| Pages (from-to) | 62-70 |
| Number of pages | 9 |
| Journal | International Journal of Embedded Systems |
| Volume | 10 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - 2018 |
Keywords
- access structure
- attribute-based encryption
- cooperative decryption.
- group-oriented
Cite this
}
GO-CP-ABE : group-oriented ciphertext-policy attribute-based encryption. / Li, Yang; Tao, Xiaoling; Wu, Wei; Liu, Joseph K.
In: International Journal of Embedded Systems, Vol. 10, No. 1, 2018, p. 62-70.Research output: Contribution to journal › Article › Research › peer-review
TY - JOUR
T1 - GO-CP-ABE
T2 - group-oriented ciphertext-policy attribute-based encryption
AU - Li, Yang
AU - Tao, Xiaoling
AU - Wu, Wei
AU - Liu, Joseph K.
PY - 2018
Y1 - 2018
N2 - We introduce a variant of ciphertext-policy attribute-based encryption called group-oriented ciphertext-policy attribute-based encryption (GO-CP-ABE). In the new notion, message is encrypted under an access structure over attributes and users are described by their attributes. In addition, users are divided into different groups and each user belongs to only one group. Users within the same group can merge their attributes to decrypt successfully, if the union of their attributes satisfies the access structure embedded in the ciphertext. But users from different groups cannot realise this cooperative decryption. We define the security model of GO-CP-ABE and present an efficient design by revising an existing CP-ABE scheme.
AB - We introduce a variant of ciphertext-policy attribute-based encryption called group-oriented ciphertext-policy attribute-based encryption (GO-CP-ABE). In the new notion, message is encrypted under an access structure over attributes and users are described by their attributes. In addition, users are divided into different groups and each user belongs to only one group. Users within the same group can merge their attributes to decrypt successfully, if the union of their attributes satisfies the access structure embedded in the ciphertext. But users from different groups cannot realise this cooperative decryption. We define the security model of GO-CP-ABE and present an efficient design by revising an existing CP-ABE scheme.
KW - access structure
KW - attribute-based encryption
KW - cooperative decryption.
KW - group-oriented
UR - http://www.scopus.com/inward/record.url?scp=85047651050&partnerID=8YFLogxK
U2 - 10.1504/IJES.2018.089434
DO - 10.1504/IJES.2018.089434
M3 - Article
VL - 10
SP - 62
EP - 70
JO - International Journal of Embedded Systems
JF - International Journal of Embedded Systems
SN - 1741-1068
IS - 1
ER -