High efficient key-insulated attribute based encryption scheme without bilinear pairing operations

Hong, Hanshu; Sun, Zhixin

doi:10.1186/s40064-016-1765-9

Cited by 16 publications

(8 citation statements)

References 24 publications

(14 reference statements)

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“…While the elimination of pairing operations [10] hasn't been fully realized in ABS yet, however, in identity based cryptography and certificateless public cryptography, some researchers have successfully construct their schemes [13][14][15][16] without pairings. Ibrahim Elashry et al in [13] proposed an efficient identity based encryption scheme independent of pairings.…”

Section: Cryptology Without Pairingsmentioning

confidence: 99%

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Provably Secure Key Insulated Attribute Based Signature without Bilinear Pairings for Wireless Communications

Hong¹,

Xia²,

Sun³

2017

dtcse

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Abstract. Attribute based signature (ABS) is a significant cryptographic notion providing secure authentication during data sharing. A signer can sign a message using the private keys he processes. However, user's private key exposure may happen from time to time and this will bring potential threat to the whole system. Thus, key evolving mechanism should be introduced into ABS schemes. Besides, the efficiency of existing ABS schemes can be further improved since the process of signing and verification require massive bilinear pairings, which occupies costly computing resources on mobile terminal devices. To better tackle the above problems and provides a more secure data authentication method in mobile communication systems, in this paper, we firstly propose a key insulated attribute based signature scheme without pairings (KI-ABS-WP). Then we give the formalized definition as well as the concreted constructions of our scheme. In our KI-ABS-WP, uses needn't run any bilinear pairings, thus the total computation cost has been reduced to a large extent. If key exposure occurs, key insulation mechanism guarantees system's both backward and forward security. Finally, by performance analysis, our KI-ABS-WP is shown to be suitable for data authentication in wireless communications.

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Section: Cryptology Without Pairingsmentioning

confidence: 99%

“…But in attribute cryptosystem this seems impractical since the attribute a user possesses may be irrevocable (for instance "Nationality" "Gender", etc.). Consequently, how to carry out key exposure protection [10] in ABS is a significant and practical job.…”

Section: Introductionmentioning

confidence: 99%

Provably Secure Key Insulated Attribute Based Signature without Bilinear Pairings for Wireless Communications

Hong¹,

Xia²,

Sun³

2017

dtcse

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“…Key-insulation mechanism can provide full security when user's private key exposure happens, which can also be introduced to provide key exposure protection in attribute based cryptosystem [25].…”

Section: Related Work and Preliminaries 21 Related Workmentioning

confidence: 99%

A key-insulated CP-ABE with key exposure accountability for secure data sharing in the cloud

2016

KSII TIIS

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ABE has become an effective tool for data protection in cloud computing. However, since users possessing the same attributes share the same private keys, there exist some malicious users exposing their private keys deliberately for illegal data sharing without being detected, which will threaten the security of the cloud system. Such issues remain in many current ABE schemes since the private keys are rarely associated with any user specific identifiers. In order to achieve user accountability as well as provide key exposure protection, in this paper, we propose a key-insulated ciphertext policy attribute based encryption with key exposure accountability (KI-CPABE-KEA). In our scheme, data receiver can decrypt the ciphertext if the attributes he owns match with the self-centric policy which is set by the data owner. Besides, a unique identifier is embedded into each user's private key. If a malicious user exposes his private key for illegal data sharing, his identity can be exactly pinpointed by system manager. The key-insulation mechanism guarantees forward and backward security when key exposure happens as well as provides efficient key updating for users in the cloud system. The higher efficiency with proved security make our KI-CPABE-KEA more appropriate for secure data sharing in cloud computing.

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“…Afterwards, many studies [3][4][5] have been presented to provide better performances, higher security level, and more advanced functions. Aside from these properties, fine-grained access managements are also important because an uploader can take this advantage to make self-centric access policies on their private data [6][7][8][9]. To better satisfy this demand, Sahai et al presented attribute-based encryption (ABE) [10][11][12] which efficiently brings flexible access control.…”

Section: Introductionmentioning

confidence: 99%

“…Further, in most of the existing schemes, there exist additional transmission overheads of key updating. Consequently, an attribute-based keyword search with key exposure protection mechanism and efficient key refreshing [8] urgently needs to be proposed.…”

Section: Introductionmentioning

confidence: 99%

Towards Secure Data Retrieval for Multi-Tenant Architecture Using Attribute-Based Key Word Search

2017

Self Cite

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Searchable encryption mechanism and attribute-based encryption (ABE) are two effective tools for providing fine-grained data access control in the cloud. Researchers have also taken their advantages to present searchable encryption schemes based on ABE and have achieved significant results. However, most of the existing key word search schemes based on ABE lack the properties of key exposure protection and highly efficient key updating when key leakage happens. To better tackle these problems, we present a key insulated attribute-based data retrieval scheme with key word search (KI-ABDR-KS) for multi-tenant architecture. In our scheme, a data owner can make a self-centric access policy of the encrypted data. Only when the possessing attributes match with the policy can a receiver generate a valid trapdoor and search the ciphertext. The proposed KI-ABDR-KS also provides full security protection when key exposure happens, which can minimize the damage brought by key exposure. Furthermore, the system public parameters remain unchanged during the process of key updating; this will reduce the considerable overheads brought by parameters synchronization. Finally, our KI-ABDR-KS is proven to be secure under chosen-keyword attack and achieves better efficiency compared to existing works.

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High efficient key-insulated attribute based encryption scheme without bilinear pairing operations

Cited by 16 publications

References 24 publications

Provably Secure Key Insulated Attribute Based Signature without Bilinear Pairings for Wireless Communications

Provably Secure Key Insulated Attribute Based Signature without Bilinear Pairings for Wireless Communications

A key-insulated CP-ABE with key exposure accountability for secure data sharing in the cloud

Towards Secure Data Retrieval for Multi-Tenant Architecture Using Attribute-Based Key Word Search

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