【摘要】 门限密码学提供了一种安全的密钥共享方法。门限签名是门限密码学的重要组成部分。目前的门限签名主要是基于RSA和ElGamal密码体制。本文结合数字签名方案与有限阿贝尔群上的秘密分享方案,提出了一种基于Rabin密码体制的门限签名方案并对该方案的有效性和安全性进行了分析。更多还原

【Abstract】 Threshold cryptography provides a way in which the secret key can be shared secretly. Threshold signature is a part of the threshold cryptography. This paper has proposed a threshold signature scheme, which is a combination of digital signature scheme and secret sharing scheme over finite abelian group, based on Rabin cryptosystem. Also the efficiency and security of the scheme are discussed.更多还原