An efficient certificateless aggregate signature with conditional privacy-preserving for vehicular sensor networks

In Attribute-based Encryption (ABE) scheme, attributes play a very important role. Attributes have been exploited to generate a public key for encrypting data and have been used as an access policy to control users' access. The access policy can be categorized as either key-policy or ciphertext-policy. The key-policy is the access structure on the user's private key, and the ciphertext-policy is the access structure on the ciphertext. And the access structure can also be categorized as either monotonic or non-monotonic one. Using ABE schemes can have the advantages: (1) to reduce the communication overhead of the Internet, and (2) to provide a fine-grained access control. In this paper, we survey a basic attribute-based encryption scheme, two various access policy attribute-based encryption schemes, and two various access structures, which are analyzed for cloud environments. Finally, we list the comparisons of these schemes by some criteria for cloud environments.

/pdf/a-survey-on-attribute-based-encryption-schemes-of-access-4x3r3uxc38.pdf

A Survey on Attribute-based Encryption Schemes of Access Control in Cloud Environments

An efficient certificateless aggregate signature without pairings for vehicular ad hoc networks

An authenticated RFID system is provided that uses elliptic curve cryptography (ECC) to reduce the signature size and read/write times when compared to traditional public key implementations such as RSA. Either ECDSA or ECPVS can be used to reduce the signature size and ECPVS can be used to hide a portion of the RFID tag that contains sensitive product identifying information. As a result, smaller tags can be used or multiple signatures can be written at different stages in a manufacturing or supply chain. A key management system is used to distribute the verification keys and aggregate signature schemes are also provided for adding multiple signatures to the RFID tags, for example in a supply chain.

Aggregate Signature Schemes

Nyberg and Ruppel first proposed a signature scheme with message recovery based on DSA in 1993, and the authenticated encryption scheme is a special application of their scheme. Afterward, there are many papers proposed about the authenticated encryption schemes. The signature scheme can reduce the transmitted cost, because the message has been contained in the signature of the message and the signer does not necessary to send the receiver the message and the signature. The scheme is very suitable for the key agreement application, because a key is a small amount of a message. In order to comprehend and interpret the authenticated encryption schemes overall, we discuss the evolution and the existed problems of authenticated encryption schemes.

http://ijns.jalaxy.com.tw/contents/ijns-v1-n2/ijns-2005-v1-n2-p61-73.pdf

Authenticated Encryption Schemes: Current Status and Key Issues

Digital signature with message recovery and its variants based on elliptic curve discrete logarithm problem

http://isrc.ccs.asia.edu.tw/www/myjournal/P149.pdf

Shiang-Feng Tzeng

Papers

Digital signature with message recovery and its variants based on elliptic curve discrete logarithm problem

Generalization of proxy signature based on elliptic curves

A nonrepudiable threshold multi-proxy multi-signature scheme with shared verification

On the efficiency of nonrepudiable threshold proxy signature scheme with known signers

An improvement of nonrepudiable threshold proxy signature scheme with known signers