Ramp secret sharing scheme
Webb17 aug. 2024 · It is known that any such threshold secret sharing scheme necessarily requires shares of length \ell, and in this sense Shamir's scheme is optimal. The more general notion of ramp schemes requires the reconstruction of secret from any t+g shares, for a positive integer gap parameter g.
Ramp secret sharing scheme
Did you know?
WebbPartha Sarathi Roy. Avishek Adhikari. A (k, L, n) ramp secret sharing scheme allows a dealer to share a secret vector with a lesser share size compared to threshold secret sharing schemes. In this ... Webb12 maj 1995 · Strongly secure ramp secret sharing schemes. Mitsugu Iwamoto, Hirosuke Yamamoto; Computer Science. Proceedings. International Symposium on Information Theory, 2005. ISIT 2005. 2005; TLDR. It is shown that a strong ramp SS scheme can always be constructed from a SS scheme with plural secrets for any feasible general access …
Webb6 dec. 2024 · A ramp secret sharing scheme is either strong or weak, where strong ramp secret sharing schemes do not leak any explicit information about the secret even if there is some information leakage due to some forbidden … Webbför 42 minuter sedan · The United States faces challenges in Southeast Asia in building a coalition to counter China and deter any potential action by Beijing against Taiwan HANOI, Vietnam – United States Secretary of ...
Webb23 mars 2024 · Therefore, a new kind of threshold secret sharing schemes, termed ramp schemes, are proposed, wherein partial information about the secret may be leaked for some subsets of participants (no longer a perfect secret sharing), and the information rates can be greater than one. WebbThis is also true for the threshold secret sharing schemes constructed in [3, 12, 14, 18, 21, 26, 27]. Clearly, this class of schemes has been used in many scenarios. We assume that all the secret sharing schemes have full reconstruction in the following. Based on the definitions of a (t,r,n) → (t ,r ,n) ramp scheme in Definition 3 and the full
Webb9 dec. 2024 · Since the mid 2000s, asymptotically-good strongly-multiplicative linear (ramp) secret sharing schemes over a fixed finite field have turned out as a central theoretical primitive in numerous constant-communication-rate results in multi-party cryptographic scenarios, and, surprisingly, in two-party cryptography as well.
Webb20 sep. 2024 · In Bogdanov et al.'s paper, they prove that any $(s,r,n)$-ramp secret sharing scheme for a one-bit secret requires shares of at least $\log((r+1)/(r-s))$ bits. My question. Does share size (e.g. $\log((r+1)/(r-s))$ bits) have anything to do with the entropy of information which each party holds? computational prijevod hrvatskiSecret sharing (also called secret splitting) refers to methods for distributing a secret among a group, in such a way that no individual holds any intelligible information about the secret, but when a sufficient number of individuals combine their 'shares', the secret may be reconstructed. Whereas insecure secret sharing … Visa mer Secret sharing schemes are ideal for storing information that is highly sensitive and highly important. Examples include: encryption keys, missile launch codes, and numbered bank accounts. Each of these pieces of information … Visa mer t = 1 t = 1 secret sharing is trivial. The secret can simply be distributed to all n participants. t = n Visa mer If the players store their shares on insecure computer servers, an attacker could crack in and steal the shares. If it is not practical to … Visa mer A secure secret sharing scheme distributes shares so that anyone with fewer than t shares has no more information about the secret than someone with 0 … Visa mer Several secret-sharing schemes are said to be information-theoretically secure and can be proven to be so, while others give up this unconditional security for improved efficiency while … Visa mer The trivial approach quickly becomes impractical as the number of subsets increases, for example when revealing a secret to any 50 of … Visa mer A player might lie about his own share to gain access to other shares. A verifiable secret sharing (VSS) scheme allows players to be certain that no other players are lying about the contents of their shares, up to a reasonable probability of error. Such schemes … Visa mer tatsuru uchidaWebb2 maj 2002 · In a (k, L, n)-threshold ramp secret sharing scheme, one can decrypt the secret with any k or more than k shadows; but no information of the secret can be revealed with any k−L or less than k... tatsuro yamashita ride on timeWebb13 apr. 2024 · The visual cryptography scheme (VCS) distributes a secret to several images that can enhance the secure transmission of that secret. Quick response (QR) codes are widespread. VCS can be used to improve their secure transmission. Some schemes recover QR codes with many errors. This paper uses a distribution mechanism … tatsushiWebb16 feb. 2024 · The scheme is shown to approach a linear ramp scheme when the secret size grows to infinity. It is conceptually easy to understand, and has low computation … tatsushi araiWebb20 maj 2024 · Secret image sharing (SIS) belongs to but differs from secret sharing. In general, conventional ( k , n ) threshold SIS has the shortcoming of pall-or-nothingq. In this article, first we introduce ramp SIS definition. tatsushi okudaWebbA secret sharing scheme is a method of assigning shares for a secret to some participants such that only some distinguished subsets of these subsets can recover the secret while … tatsuro yamashita ride on time discogs