Convertible authenticated encryption scheme

Wu, Tsan-Ming; Hsu, Chien-Lung

doi:10.1016/s0164-1212(01)00143-1

Cited by 66 publications

(50 citation statements)

References 6 publications

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“…We compare the proposed scheme with some previous ones including Araki et al's (AUI for short) [1], Sekhar's (Sek for short) [17], the Wu-Hsu (WH for short) [19], Lee et al's (LHT for short) [16], Chien's (Chi for short) [2] and the Wu-Lin (WL for short) [20] schemes. Detailed comparisons in terms of functionalities and security are demonstrated as Table 1.…”

Section: Comparisonsmentioning

confidence: 99%

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Convertible Authenticated Encryption Scheme with Hierarchical Access Control

Hsu¹,

Lin²

2014

Appl. Math. Inf. Sci.

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Convertible authenticated encryption (CAE) scheme with hierarchical access control has crucial benefits to the transmission of digital evidence. Such a scheme allows a judicial policeman to generate an authenticated ciphertext and only a designated investigator of Investigation of Bureau, Ministry of Justice (MJIB) has the ability to decrypt the ciphertext and verify the corresponding signature. The designated investigator can further convert the ciphertext into an ordinary signature and give it to a judge or a prosecutor for the litigation process. A senior manager of MJIB also has the right to take over either one or all ciphertext, i.e., digital evidence, intended for his subordinate. The underlying security assumption of our proposed scheme is based on the bilinear Diffie-Hellman problem (BDHP). We prove that the proposed scheme achieves the security requirement of confidentiality against indistinguishability under adaptive chosen-ciphertext attacks (IND-CCA2) and that of unforgeability against existential forgery under adaptive chosen-message attacks (EF-CMA) in the random oracle model. Compared with related works, the proposed scheme not only provides better functionalities, but also has provable security.

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Section: Comparisonsmentioning

confidence: 99%

“…A convertible authenticated encryption (CAE) scheme was first proposed by Wu and Hsu [19] in 2002, which preserves the merits of AE scheme and Araki et al's one. In case of a later dispute over repudiation, the designated recipient has the ability to solely convert the ciphertext into an ordinary signature for public verification.…”

Section: Introductionmentioning

confidence: 99%

Convertible Authenticated Encryption Scheme with Hierarchical Access Control

Hsu¹,

Lin²

2014

Appl. Math. Inf. Sci.

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“…Most importantly, disputation arbitration is realized in [12]. However, the secret message must be released in the course of disputation arbitration in [11]. This problem was declared to be solved in [12].…”

Section: Authenticated Encryption Schemementioning

confidence: 99%

Secure Message Distribution Scheme with Configurable Privacy in Heterogeneous Wireless Sensor Networks

Moon

2010

IEICE Trans. Inf. & Syst.

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SUMMARYSecurity and privacy of wireless sensor networks are key research issues recently. Most existing researches regarding wireless sensor networks security consider homogenous sensor networks. To achieve better security and performance, we adopt a heterogeneous wireless sensor network (HWSN) model that consists of physically different types of sensor nodes. This paper presents a secure message distribution scheme with configurable privacy for HWSNs, which takes advantage of powerful highend sensor nodes. The scheme establishes a message distribution topology in an efficient and secure manner. The sensor node only need generate one signature for all the messages for all the users, which can greatly save the communication and computation cost of the sensor node. On the other hand, the user can only know the messages that let him know based on a pre-set policy, which can meet the requirement of the privacy. We show that the scheme has small bandwidth requirements and it is resilient against the node compromise attack. key words: configurable privacy authenticated encryption, message distribution, wireless sensor networks

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“…This approach is not successful, if the signer doesn't want to co-operate. Wu and Hsu (2003), proposed an efficient CAE scheme, in which the conversion procedure is very easy and only recipient can solely manage this process, without any heavy computation. Huang and Chang (2003), point out that Wu and Hsu (2003), scheme is not safe, since the adversary is capable of signature conversion, if he has the knowledge of the actual message and project an improvised scheme.…”

Section: Introductionmentioning

confidence: 99%

“…Wu and Hsu (2003), proposed an efficient CAE scheme, in which the conversion procedure is very easy and only recipient can solely manage this process, without any heavy computation. Huang and Chang (2003), point out that Wu and Hsu (2003), scheme is not safe, since the adversary is capable of signature conversion, if he has the knowledge of the actual message and project an improvised scheme. Unfortunately, Wang et al (2004), scheme given by Huang and Chang (2003), is also insecure against known plain text attack.…”

Section: Introductionmentioning

confidence: 99%

A CAE Scheme Using ECC Based Self Certified PKC

Chande¹,

Lee²,

Li³

2016

Journal of Computer Science

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Abstract:The Convertible Authentication Encryption (CAE) scheme, allows the signer to generate an authentic ciphertext signature, which can be recuperated and validated by a specific recipient only. In case of any kind of dispute the recipient is capable enough to convert the ciphertext signature as a normal signature and that can be validated publicly. The CAE schemes are used for transformation of confidential information over insecure networks, because they provide confidentiality, authenticity and integrity for the transmitted message or information. We propose a new CAE scheme by integrating the concepts of ECC-based self-certified public keys and encryption scheme. The security analysis shows that the proposed CAE scheme fulfill the basic security conditions such as indistinguishability of ciphertext signature, unforgeability and nonrepudiation. The performance analysis shows that our proposed CAE scheme has little advantage over Wu and Lin scheme regarding computational complexity and timings.

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Convertible authenticated encryption scheme

Cited by 66 publications

References 6 publications

Convertible Authenticated Encryption Scheme with Hierarchical Access Control

Convertible Authenticated Encryption Scheme with Hierarchical Access Control

Secure Message Distribution Scheme with Configurable Privacy in Heterogeneous Wireless Sensor Networks

A CAE Scheme Using ECC Based Self Certified PKC

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