Based on Schnorr (Elgamal) signature and (string) oblivious transfer, an enhanced oblivious transfer protocol is proposed which solved the access control problem for an oblivious transfer protocol.

• 该文在离散对数类数字签名及关于数据串的不经意传输的基础上提出了一种增强的不经意传输协议，解决了一种不经意传输的接入控制问题。