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Aggregate and Verifiably Encrypted Signatures from Bilinear Maps

by Dan Boneh, Craig Gentry, Ben Lynn, Hovav Shacham , 2002
"... An aggregate signature scheme is a digital signature that supports aggregation: Given n signatures on n distinct messages from n distinct users, it is possible to aggregate all these signatures into a single short signature. This single signature (and the n original messages) will convince the verif ..."
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protocols such as SBGP. We also show that aggregate signatures give rise to verifiably encrypted signatures. Such signatures enable the verifier to test that a given ciphertext C is the encryption of a signature on a given message M . Verifiably encrypted signatures are used in contract-signing protocols

Security of Verifiably Encrypted Signatures

by Markus Rückert, Dominique Schröder, Tu Darmstadt , 2009
"... Abstract. In a verifiably encrypted signature scheme, signers encrypt their signature under the public key of a trusted third party and prove that they did so correctly. The security properties are unforgeability and opacity. Unforgeability states that a malicious signer should not be able to forge ..."
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Abstract. In a verifiably encrypted signature scheme, signers encrypt their signature under the public key of a trusted third party and prove that they did so correctly. The security properties are unforgeability and opacity. Unforgeability states that a malicious signer should not be able to forge

Verifiably Encrypted Signature Scheme with Threshold

by Adjudication Choudary Gorantla, M. Choudary Gorantla, Ashutosh Saxena , 2006
"... Verifiably encrypted signature is useful in handling the fair exchange problem especially, online contract signing. In this paper, we propose a verifiably encrypted signature scheme using bilinear pairings. ..."
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Verifiably encrypted signature is useful in handling the fair exchange problem especially, online contract signing. In this paper, we propose a verifiably encrypted signature scheme using bilinear pairings.

On Security Notions for Verifiably Encrypted Signature

by Xu-an Wang, Xiaoyuan Yang, Yiliang Han
"... Abstract. First we revisit three- BGLS, MBGLS and GZZ verifiably encrypted signature schemes [2, 3, 6]. We find that they are all not strong unforgeable.We remark that the notion of existential unforgeable is not sufficient for fair exchange protocols in most circumstances.So we propose three new- N ..."
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Abstract. First we revisit three- BGLS, MBGLS and GZZ verifiably encrypted signature schemes [2, 3, 6]. We find that they are all not strong unforgeable.We remark that the notion of existential unforgeable is not sufficient for fair exchange protocols in most circumstances.So we propose three new

A robust verifiably encrypted signature scheme

by Jianhong Zhang , Wei Zou - In Proc. The 2006 International Conference on Emerging Directions in Embedded and Ubiquitous Computing , 2006
"... Abstract. A verifiably encrypted signature can convince the verifier that a given cipher-text is the encryption of a signature on a given message. It is often used as a building block to construct optimistic fair exchange. Recently, Gu et.al gave an ID-based verifiably encrypted signature scheme an ..."
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Abstract. A verifiably encrypted signature can convince the verifier that a given cipher-text is the encryption of a signature on a given message. It is often used as a building block to construct optimistic fair exchange. Recently, Gu et.al gave an ID-based verifiably encrypted signature scheme

A Verifiably Encrypted Signature Scheme with Strong Unforgeability

by Jianhong Zhang , 2007
"... A verifiably encrypted signature can convince the verifier that a given cipher-text is the encryption of a signature on a given message. It is often used as a building block to construct optimistic fair exchange. In this paper, first we define a stronger unforgeable model, then give a variant of Cha ..."
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A verifiably encrypted signature can convince the verifier that a given cipher-text is the encryption of a signature on a given message. It is often used as a building block to construct optimistic fair exchange. In this paper, first we define a stronger unforgeable model, then give a variant

Verifiably encrypted signatures from RSA without NIZKs

by Markus Rückert, Tu Darmstadt - In Proceedings of Indocrypt 2009 , 2009
"... Abstract. Verifiably encrypted signature (VES) schemes allow a signer to encrypt a signature under the public key of a trusted party, the adjudicator, while maintaining public signature verifiability without interactive proofs. A popular application for this concept is fair online contract signing. ..."
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Abstract. Verifiably encrypted signature (VES) schemes allow a signer to encrypt a signature under the public key of a trusted party, the adjudicator, while maintaining public signature verifiability without interactive proofs. A popular application for this concept is fair online contract signing

Rethinking Verifiably Encrypted Signatures: A Gap in Functionality and Potential Solutions

by Theresa Calderon, Sarah Meiklejohn, Hovav Shacham
"... Abstract. Verifiably encrypted signatures were introduced by Boneh, Gentry, Lynn, and Shacham in 2003, as a non-interactive analogue to interactive protocols for verifiable encryption of signatures. As their name suggests, verifiably encrypted signatures were intended to capture a notion of encrypti ..."
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Abstract. Verifiably encrypted signatures were introduced by Boneh, Gentry, Lynn, and Shacham in 2003, as a non-interactive analogue to interactive protocols for verifiable encryption of signatures. As their name suggests, verifiably encrypted signatures were intended to capture a notion

Efficient Verifiably Encrypted Signature and Partially Blind Signature from Bilinear Pairings

by Fangguo Zhang, Reihaneh Safavi-naini, Willy Susilo , 2004
"... Verifiably encrypted signatures are used when Alice wants to sign a message for Bob but does not want Bob to possess her signature on the message until a later date. Such signatures are used in optimistic contact signing to provide fair exchange. Partially blind signature schemes are an extension of ..."
Abstract - Cited by 18 (0 self) - Add to MetaCart
Verifiably encrypted signatures are used when Alice wants to sign a message for Bob but does not want Bob to possess her signature on the message until a later date. Such signatures are used in optimistic contact signing to provide fair exchange. Partially blind signature schemes are an extension

An Efficient Verifiably Encrypted Signature Scheme without Random Oracles

by Yang Ming, Yumin Wang , 2006
"... In this paper, we propose an efficient verifiably encrypted signature scheme based on bilinear pairings. The proposed scheme is proven secure without random oracles. Our scheme has a tight security reduction to a strong but reasonable computational assumption. To the best of our knowledge, it is the ..."
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In this paper, we propose an efficient verifiably encrypted signature scheme based on bilinear pairings. The proposed scheme is proven secure without random oracles. Our scheme has a tight security reduction to a strong but reasonable computational assumption. To the best of our knowledge
Results 1 - 10 of 1,320