Abstract—In this paper, we first propose the definition and security model of certificate-based proxy signature (CBPS). We then show that the certificate-based proxy signature scheme presented by Kang, Park and Hahn in CT-RSA 2004 are insecure against key replacement attacks. We further propose two certificate-based proxy signature schemes, which are shown to be existentially unforgeable against adaptive chosen message attacks under the computational Diffie-Hellman assumption in the random oracle model. Compared with the certificate-based proxy signature scheme in CT-RSA 2004, one of our schemes enjoys the same signature length and computation cost, another one requires a little more computation and communication cost. Index Terms-certifica...
Certificate-based cryptography is a new public-key cryptographic paradigm that has very appealing fe...
Abstract—Signature schemes with message recovery based on self-certified public keys can reduce the ...
In 1998, Blaze, Bleumer, and Strauss (BBS) proposed proxy re-signatures, in which a semi-trusted pro...
In Eurocrypt 2003, Gentry introduced the notion of certificate-based encryption. The merit of certif...
In Eurocrypt 2003, Gentry introduced the notion of certificate-based encryption. The merit of certif...
A proxy signature scheme permits an entity to delegate its signing rights to another entity. These s...
Certificate-based encryption was introduced in Eurocrypt'03 to solve the certificate management prob...
AbstractCertificate-based cryptosystem combines the advantage of both traditional public key cryptos...
Abstract. A (t, n) threshold proxy signature scheme enables an original signer to delegate his/her s...
Certificate-based signatures revisited Certificate-based encryption was introduced in Eurocrypt&apos...
Abstract: Certificate-based encryption was introduced in Eurocrypt’03 to solve the certificate manag...
Abstract. Cao-Cao’s recently proposed an identity-based proxy signature scheme and claim that the sc...
Proxy re-encryption (PRE) is an attractive paradigm, which gives good solutions to the problem of de...
Certificate-based encryption was introduced in Eurocrypt’03 to solve the certificate managemen...
Proxy signature is a useful cryptographic primitive that has been widely used in many applications. ...
Certificate-based cryptography is a new public-key cryptographic paradigm that has very appealing fe...
Abstract—Signature schemes with message recovery based on self-certified public keys can reduce the ...
In 1998, Blaze, Bleumer, and Strauss (BBS) proposed proxy re-signatures, in which a semi-trusted pro...
In Eurocrypt 2003, Gentry introduced the notion of certificate-based encryption. The merit of certif...
In Eurocrypt 2003, Gentry introduced the notion of certificate-based encryption. The merit of certif...
A proxy signature scheme permits an entity to delegate its signing rights to another entity. These s...
Certificate-based encryption was introduced in Eurocrypt'03 to solve the certificate management prob...
AbstractCertificate-based cryptosystem combines the advantage of both traditional public key cryptos...
Abstract. A (t, n) threshold proxy signature scheme enables an original signer to delegate his/her s...
Certificate-based signatures revisited Certificate-based encryption was introduced in Eurocrypt&apos...
Abstract: Certificate-based encryption was introduced in Eurocrypt’03 to solve the certificate manag...
Abstract. Cao-Cao’s recently proposed an identity-based proxy signature scheme and claim that the sc...
Proxy re-encryption (PRE) is an attractive paradigm, which gives good solutions to the problem of de...
Certificate-based encryption was introduced in Eurocrypt’03 to solve the certificate managemen...
Proxy signature is a useful cryptographic primitive that has been widely used in many applications. ...
Certificate-based cryptography is a new public-key cryptographic paradigm that has very appealing fe...
Abstract—Signature schemes with message recovery based on self-certified public keys can reduce the ...
In 1998, Blaze, Bleumer, and Strauss (BBS) proposed proxy re-signatures, in which a semi-trusted pro...