Blind signatures based on the discrete logarithm problem

In this paper, we provide a new multi-signature scheme that is proven secure in the plain public key model. Our scheme is practical and efficient according to computational costs, signature size and security assumptions. At first, our scheme matches the single ordinary discrete logarithm based signature scheme in terms of signing time, verification time and signature size.

Secondly, our scheme requires only two rounds of interactions and each signer needs nothing more than a certified public key to produce the signature, meaning that our scheme is compatible with existing PKIs. Thirdly, our scheme has been proven secure in the random oracle model under standard discrete logarithm DL assumption. It outperforms a newly proposed multi-signature scheme by Bagherzandi, Cheon and Jarecki BCJ scheme in terms of both computational costs and signature size. This is a preview of subscription content, log in to check access.

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Efficient discrete logarithm based multi-signature scheme in the plain public key model

In: Public Key Cryptography Lecture Notes in Computer Science, vol. Boneh D. Feige U. Fiat A. Goldwasser S. SIAM J. Harn L. IEE Proc. Housley R.

Blind signatures based on the discrete logarithm problem

Accessed January Horster P.To browse Academia. Skip to main content. Log In Sign Up. Download Free PDF. Piveteau Jean-Marc. In this comment, we prove, that this claim is fortunately totally wrong. We assume, that the reader is familar with the notation in [Harn95] and the notation of the Meta-blind signature scheme in [HoMP94]. The true anonymity of the signature with respect to the signer has already been proven in [CaPS94] and for the Meta-blind signature scheme in [HoMP94].

Therefore the blind signature can't be traced by this equation. Theorem 1: Given large primes p and q, qj p? Together 1 1 2 2 with theorem 1, this proves untraceability. Clearly this result can be generalized for the Meta-blind signature scheme in [HoMP94].

Thus both blind signature schemes remain secure. This statement is inaccurate, as e. Okamoto published the blind Schnorr signature scheme and other blind signature schemes already in [Okam92]. References [CaPS94] J.

Introduction to Schnorr Signatures for Bitcoin \u0026 Lightning Network. Schnorr Signature Tutorial Part1

Camenisch, J. Piveteau, M. Horster, M. Michels, H. Asiacrypt '94, Berlin: Springer Verlag,pp. Crypto '92, Berlin: Springer Verlag,pp. Related Papers. By Saroj Panigrahy. By Sherman S. By Hung Yu Chien. By Arash Rajaei. A handbook of applied cryptography.ElGamal based blind signature schemes and message recovery blind signature schemes have been discovered recently.

We show how to generalize them using the ideas of the Meta-ElGamal and the Meta-Message recovery signature scheme. Introduction The concept of blind signature schemes was introduced by Chaum in [Chau82].

These schemes can be used in payment systems [Chau85] or for electronic voting schemes [FuOO92]. In a blind signature scheme an owner Alice wants to obtain a digital signature on a message choosen by herself from the notary Nancy, but Nancy shouldn't have any idea which message she signs. If she gets the message and the signature later, it must not be possible that Nancy can find a relationship between some blinded and unblinded parameters.

Additionally there are other classes of blind signatures, hidden or weak blind signature [HoPe94], in which the notary can find a relationship between some blinded and unblinded parameters if she gets a signed unblinded message Documents: Advanced Search Include Citations. Citations: 1 - 0 self. Abstract ElGamal based blind signature schemes and message recovery blind signature schemes have been discovered recently.

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blind signatures based on the discrete logarithm problem

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blind signatures based on the discrete logarithm problem

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blind signatures based on the discrete logarithm problem

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