How to Split a Secret into Unknown Shares
نویسنده
چکیده
Secret sharing allows a dealer to distribute a secret among multiple parties such that authorized coalitions can reconstruct the secret. Traditionally, the dealer knows the exact share each user holds. Grigoriev and Shpilrain recently considered secret sharing systems for which the dealer does not know the share of a particular party and introduced a construction for the special case of all-or-nothing schemes. We extend their work and propose some simple to describe threshold secret sharing schemes that satisfy this property.
منابع مشابه
Visual Cryptography Schemes for Secret Images Encryption and Decryption
Visual cryptography is one of the techniques used to encrypt the images by dividing the original image into transparencies. The transparencies can be sent to the intended person, and at the other end the transparencies received person can decrypt the transparencies using the tool, thus gets the original image. The proposed Visual cryptography provides the demonstration to the users to show how ...
متن کاملOn Secret Sharing Schemes with Extended Capabilities
Secret sharing allows split control over the secret. Secret parts known as secret shares are distributed to different shareholders (locations). Secret can be recovered upon combination of sufficient number of shares. Research into theoretical foundations, development of widespread applications, as well as, new attacks resulted in great need for extra features of existing schemes. We describe ex...
متن کاملOn ASGS framework: general requirements and an example of implementation
In the paper we propose general framework for Automatic Secret Generation and Sharing (ASGS) that should be independent of underlying secret sharing scheme. ASGS allows to prevent the dealer from knowing the secret or even to eliminate him at all. Two situations are discussed. First concerns simultaneous generation and sharing of the random, prior nonexistent secret. Such a secret remains unkno...
متن کاملSecurity Limitations of Using Secret Sharing for Data Outsourcing
Three recently proposed schemes use secret sharing to support privacy-preserving data outsourcing. Each secret in the database is split into n shares, which are distributed to independent data servers. A trusted client can use any k shares to reconstruct the secret. These schemes claim to offer security even when k or more servers collude, as long as certain information such as the finite field...
متن کاملk out of n NonBinary Audio Cryptography Using Polynomial Interpolation
Audio cryptography is same like a visual cryptography. A plain data (audio file) is split into two or more shares. Each single share does not convey any meaning but when shares are combined together they will reveal the original data. In Audio cryptography the "plaintext" is an audio File. k out of n Nonbinary Audio Cryptography scheme is a special type of secret sharing scheme which is more se...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- IACR Cryptology ePrint Archive
دوره 2014 شماره
صفحات -
تاریخ انتشار 2014