DOAJ Open Access 2021

Efficient functional encryption for inner product with simulation-based security

Wenbo Liu Qiong Huang Xinjian Chen Hongbo Li

Abstrak

Abstract Functional encryption (FE) is a novel paradigm for encryption scheme which allows tremendous flexibility in accessing encrypted information. In FE, a user can learn specific function of encrypted messages by restricted functional key and reveal nothing else about the messages. Inner product encryption (IPE) is a special type of functional encryption where the decryption algorithm, given a ciphertext related to a vector x and a secret key related to a vector y, computes the inner product x·y. In this paper, we construct an efficient private-key functional encryption (FE) for inner product with simulation-based security, which is much stronger than indistinguishability-based security, under the External Decisional Linear assumption in the standard model. Compared with the existing schemes, our construction is faster in encryption and decryption, and the master secret key, secret keys and ciphertexts are shorter.

Topik & Kata Kunci

Computer engineering. Computer hardware Electronic computers. Computer science

Penulis (4)

Wenbo Liu

Qiong Huang

Xinjian Chen

Hongbo Li

Format Sitasi

APA MLA BibTeX

Liu, W., Huang, Q., Chen, X., Li, H. (2021). Efficient functional encryption for inner product with simulation-based security. https://doi.org/10.1186/s42400-020-00067-1

Akses Cepat

PDF tidak tersedia langsung

Cek di sumber asli →

Lihat di Sumber doi.org/10.1186/s42400-020-00067-1

Informasi Jurnal

Tahun Terbit: 2021
Sumber Database: DOAJ
DOI: 10.1186/s42400-020-00067-1
Akses: Open Access ✓