Pairing-free equality test over short ciphertexts
The concept of public key encryption with equality test was introduced at CT-RSA 2010. It has been used in many fields, especially in cloud storage. However, the previous schemes do not provide an effective authorization mechanism. To fill this gap, Ma et al. presented a public key encryption with e...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2017-06-01
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| Series: | International Journal of Distributed Sensor Networks |
| Online Access: | https://doi.org/10.1177/1550147717715605 |
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| _version_ | 1832547294986108928 |
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| author | Huijun Zhu Licheng Wang Haseeb Ahmad Xinxin Niu |
| author_facet | Huijun Zhu Licheng Wang Haseeb Ahmad Xinxin Niu |
| author_sort | Huijun Zhu |
| collection | DOAJ |
| description | The concept of public key encryption with equality test was introduced at CT-RSA 2010. It has been used in many fields, especially in cloud storage. However, the previous schemes do not provide an effective authorization mechanism. To fill this gap, Ma et al. presented a public key encryption with equality test supporting flexible authorization based on the bilinear pairings. Recently, Lin et al. presented a pairing-free scheme that employs quadratic curve to perform the equality tests, which can achieve a trade-off between computational cost and storage space. In this article, we show that the equality test can be better performed by using a straight line, rather than a quadratic curve. Moreover, we simplify the encryption algorithm, as well as reduce the ciphertext storage space. |
| format | Article |
| id | doaj-art-7c8725fbf2944b8fad8851132c58929d |
| institution | Kabale University |
| issn | 1550-1477 |
| language | English |
| publishDate | 2017-06-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Distributed Sensor Networks |
| spelling | doaj-art-7c8725fbf2944b8fad8851132c58929d2025-02-03T06:45:23ZengWileyInternational Journal of Distributed Sensor Networks1550-14772017-06-011310.1177/1550147717715605Pairing-free equality test over short ciphertextsHuijun ZhuLicheng WangHaseeb AhmadXinxin NiuThe concept of public key encryption with equality test was introduced at CT-RSA 2010. It has been used in many fields, especially in cloud storage. However, the previous schemes do not provide an effective authorization mechanism. To fill this gap, Ma et al. presented a public key encryption with equality test supporting flexible authorization based on the bilinear pairings. Recently, Lin et al. presented a pairing-free scheme that employs quadratic curve to perform the equality tests, which can achieve a trade-off between computational cost and storage space. In this article, we show that the equality test can be better performed by using a straight line, rather than a quadratic curve. Moreover, we simplify the encryption algorithm, as well as reduce the ciphertext storage space.https://doi.org/10.1177/1550147717715605 |
| spellingShingle | Huijun Zhu Licheng Wang Haseeb Ahmad Xinxin Niu Pairing-free equality test over short ciphertexts International Journal of Distributed Sensor Networks |
| title | Pairing-free equality test over short ciphertexts |
| title_full | Pairing-free equality test over short ciphertexts |
| title_fullStr | Pairing-free equality test over short ciphertexts |
| title_full_unstemmed | Pairing-free equality test over short ciphertexts |
| title_short | Pairing-free equality test over short ciphertexts |
| title_sort | pairing free equality test over short ciphertexts |
| url | https://doi.org/10.1177/1550147717715605 |
| work_keys_str_mv | AT huijunzhu pairingfreeequalitytestovershortciphertexts AT lichengwang pairingfreeequalitytestovershortciphertexts AT haseebahmad pairingfreeequalitytestovershortciphertexts AT xinxinniu pairingfreeequalitytestovershortciphertexts |