منابع مشابه
Robust Threshold DSS Signatures
We present threshold DSS (Digital Signature Standard) signatures where the power to sign is shared by n players such that for a given parameter t < n=2 any subset of 2t + 1 signers can collaborate to produce a valid DSS signature on any given message, but no subset of t corrupted players can forge a signature (in particular, cannot learn the signature key). In addition, we present a robust thre...
متن کاملRobust Threshold DSS Signatures Overview
Threshold Signature schemes provide a way of jointly produce a digital signature by a group of players, rather than by a single player. If the secret key is shared by n players only a set of t + 1 < n players can produce a valid signature, and the signature produced is the same as if it was produced by a single player. Threshold signatures are used to protect signature keys from internal or ext...
متن کاملPractical Threshold Signatures
We present an RSA threshold signature scheme. The scheme enjoys the following properties: 1. it is unforgeable and robust in the random oracle model, assuming the RSA problem is hard; 2. signature share generation and verification is completely non-interactive; 3. the size of an individual signature share is bounded by a constant times the size of the RSA modulus.
متن کاملRerandomizable Threshold Blind Signatures
This paper formalizes the concept of threshold blind signatures (TBS) that bridges together properties of the two well-known signature flavors, blind signatures and threshold signatures. Using TBS users can obtain signatures through interaction with t-out-of-n signers without disclosing the corresponding message to any of them. Our construction is the first TBS scheme that achieves security in ...
متن کاملSeparable Linkable Threshold Ring Signatures
A ring signature scheme is a group signature scheme with no group manager to setup a group or revoke a signer. A linkable ring signature, introduced by Liu, et al. [20], additionally allows anyone to determine if two ring signatures are signed by the same group member (a.k.a. they are linked). In this paper, we present the first separable linkable ring signature scheme, which also supports an e...
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ژورنال
عنوان ژورنال: Information and Computation
سال: 2001
ISSN: 0890-5401
DOI: 10.1006/inco.2000.2881