Research of the Rational Secret Sharing Technology
|School||Harbin Normal University|
|Keywords||Information Security Two-variable one-way function Secret Distribution Center Rational secret sharing Interactive computing|
The secret sharing is an important means of data confidentiality and communications security , in preventing the loss of important information and secret data , destroyed, maliciously modified and plays a crucial role by unscrupulous elements . Secret sharing and its related applied research not only has important theoretical significance , but also in real life has a broad application prospects . this paper describes the development of a secret shared background and the current research , and analysis of the strengths and weaknesses of the existing secret sharing scheme based on for how to construct a safe and effective secret sharing scheme and design several secret sharing scheme . main findings are as follows : ( 1) analysis of the strengths and weaknesses of the existing rational secret sharing scheme , a rational secret sharing scheme is improved , so that the program to be able to verify the participant sending the shadow key is correct , and be able to verify the participant sending the number of sub-keys is correct (2) for the deficiencies of the existing rational secret sharing scheme , from two fronts : analysis of existing programs , and found that the rational secret sharing a secret distribution center , in a rational secret sharing scheme , however a trusted by all the secret distribution center is not exist , In this regard, this paper interactive computing and Lagrange interpolation polynomial constructed a rational secret sharing scheme for secret distribution center .