Fully Secure Hidden Ciphertext Policy Attribute-Based Encryption with Short Ciphertext Size

Jin, Cancan; Feng, Xiaobing; Shen, Qingni

doi:10.1145/3017971.3017981

Cited by 17 publications

(8 citation statements)

References 17 publications

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“…The first CP-ABE scheme was introduced in [7], where ciphertexts were associated with access structure defined by data owners and the key are associated with sets of attributes about users. Subsequently, there are a lot of CP-ABE schemes were also successively proposed in [15], [17], [18], and [21], but these schemes only support AND gates. To realize the access structure more expressive, Waters proposed an access structure based a linear secret sharing scheme (LSSS), and it is also a provably secure scheme under the standard model [3].…”

Section: A Related Workmentioning

confidence: 99%

“…In this section, we will give some comparisons of our scheme with previous related works ( [5], [8], [9], [18], [24]) in terms of security and performance. In Table 1, we provide comprehensive comparisons for some important features, including the size of public keys, private keys and ciphertexts, decryption overhead, group order, and the expression and status of access policy.…”

Section: Performance Analysismentioning

confidence: 99%

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Hidden Ciphertext Policy Attribute-Based Encryption With Fast Decryption for Personal Health Record System

Zhang

et al. 2019

IEEE Access

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Since cloud computing has been playing an increasingly important role in real life, the privacy protection in many fields has been paid more and more attention, especially, in the field of personal health record (PHR). The traditional ciphertext-policy attribute-based encryption (CP-ABE) provides the fine-grained access control policy for encrypted PHR data, but the access policy is also sent along with ciphertext explicitly. However, the access policy will reveal the users' privacy, because it contains too much sensitive information of the legitimate data users. Hence, it is important to protect users' privacy by hiding access policies. In most of the previous schemes, although the access policy is hidden, they face two practical problems: 1) these schemes do not support large attribute universe, so their practicality in PHR is greatly limited and 2) the cost of decryption is especially high since the access policy is embedded in the ciphertext.To address these problems, we construct a CP-ABE scheme with efficient decryption, where both the size of public parameters and the cost of decryption are constant. Moreover, we also show that the proposed scheme achieves full security in the standard model under static assumptions by using the dual system encryption method.INDEX TERMS Personal health record (PHR), attribute-based encryption, hidden policy, fast decryption.

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Section: A Related Workmentioning

confidence: 99%

Section: Performance Analysismentioning

confidence: 99%

Hidden Ciphertext Policy Attribute-Based Encryption With Fast Decryption for Personal Health Record System

Zhang

et al. 2019

IEEE Access

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“…Nishide et al [24] first introduced a CP-ABE scheme with partially hidden policy, which is proved to be selectively secure. Whereafter, Lai et al [25] and Jin et al [26] separately constructed an adaptively secure CP-ABE supporting the similar AND-gate access policy as in [24]. To improve the policy expressiveness, Lai et al [27] gave a partially hidden CP-ABE scheme supporting any monotonic policy which can be expressed by a linear secret sharing scheme (LSSS).…”

Section: Related Workmentioning

confidence: 99%

Efficient Privacy-Preserving Access Control of Mobile Multimedia Data in Cloud Computing

Tian

Zhang

et al. 2019

IEEE Access

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With the nature of allowing the encryptor to define the access policy before encrypting a message, Ciphertext-policy attribute-based encryption (CP-ABE) has been widely adopted as a primitive to design cloud-assisted mobile multimedia data sharing system. However, in most previous works, the access policy sent along with ciphertext remains in the palintext form, which would expose the user's privacy to anyone who can get the ciphertext even if he is not authorized to decrypt. In addition, the resourceconstrained mobile devices can not carry out frequent encryption and decryption task caused by CP-ABE. Such drawbacks may reduce the enthusiasm of consumers to share the multimedia data via their mobile devices. In this paper, we proposed PPCMM, a privacy-preserving cloud-assisted mobile multimedia data sharing scheme, where each attribute is described by an attribute name and an attribute value. The attribute values are embedded in the chphertext and only the attribute names are revealed in the access policy. The encryption is divided to two phase: online and offline. In the offline stage, the data owner can prepare the intermediate ciphertext components. Once receiving the encryption requirement of a specific access policy and the multimedia data, the data owner can quickly form the final legal ciphertext in the online stage. By employing the decryption outsourcing technique, most computation overhead of matching test and decryption is offload to the cloud server. The security proof showed that PPCMM is adaptively secure in the standard model. The performance analysis indicated that PPCMM greatly reduces the computation cost in both online encryption and user decryption. INDEX TERMS Mobile multimedia data, access control, CP-ABE, partially hidden policy, online/offline encryption, efficient decryption.

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“…Yadav [21] has proposed a secure CP-ABE scheme using composite-order bilinear groups which hides access policy. Jin [22] has presented an efficient CP-ABE development with hidden policy and is fully secure under static assumptions applying the dual system encryption methodology. This scheme allows AND gate with both positive, negative and wildcard access policy, with a short size of ciphertext.…”

Section: Hidden Access Policymentioning

confidence: 99%

Current Issues in Ciphertext Policy-Attribute Based Scheme for Cloud Computing: A Survey

Muhammad

Zain²,

Mohamad

2018

IJET

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The use of cloud computing has increased exponentially in data resources storage over the past few years. Cloud storage reduces the overall costs of server maintenance, whereby companies only pay for the resources they actually use in the cloud storage. Despite this, security concerns in cloud computing must be a top priority. One of the common encryption methods in cloud security is Attribute Based Encryption (ABE). ABE contains two types, namely, Ciphertext Policy-Attribute Based Encryption (CP-ABE) and Key Policy- Attribute based Encryption (KP-ABE). CP-ABE is better than KP-ABE, especially in reduplication issues and fine-grained access. However, issues in CP_ABE need further improvement. Improvement for the CP-ABE scheme has been growing rapidly since 2010 to date, and five main issues need improvement. This paper reviews the proposed CP-ABE schemes during the past three years. These schemes focus on solving the five issues identified inherent in the CP-ABE scheme.

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Fully Secure Hidden Ciphertext Policy Attribute-Based Encryption with Short Ciphertext Size

Cited by 17 publications

References 17 publications

Hidden Ciphertext Policy Attribute-Based Encryption With Fast Decryption for Personal Health Record System

Hidden Ciphertext Policy Attribute-Based Encryption With Fast Decryption for Personal Health Record System

Efficient Privacy-Preserving Access Control of Mobile Multimedia Data in Cloud Computing

Current Issues in Ciphertext Policy-Attribute Based Scheme for Cloud Computing: A Survey

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