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在网络通讯中，有时某些用户需要共享一个密钥，并且还要防止非授权的用户得到有关这个密钥的任何信息．Ｂｅｉｍｅｌｔ和Ｃｈｏｒ在［１］中提出了密钥预分配方案（ＫＰＳ，ＫｅｙＰｒｅｄｉｓｔｒｆｏｕｔｉｏｎ Ｓｃｈｅｍｅ）； Ｓｔｉｎｓｏｎ在［２－４］中对ＫＰＳ进行了总结，并且提出了一些构造方案．本文第二作者在［５］中利用有限域上的有理正规曲线构造出一类新的强部分平衡ｔ－设计．本文将说明，利用强部分平衡ｔ－设计可构造ＫＰＳ，从而构造出一类新的ＫＰＳ．
In network communications, sometimes some users need to share a key, and also prevent an unauthorized user from getting any information about the key. Beimelt and Chor proposed the key pre-distribution scheme (KPS) in [1]; Stinson summarized KPS in [2-4] and proposed some construction schemes. In [5], the second author of this paper constructs a new kind of strong partial equilibrium t-design by using the rational regular curve over finite field. This paper shows that KPS can be constructed using a strong partial equilibrium t-design to create a new class of KPS.