[a,b]-shrinking generator
[a,b]-缩减生成器

A new construction of a new generator,called the a,b]-shrinking generator was investigated based on two Linear Feedback Shift Registers(LFSR).The period,linear complexity,weight complexity and the numbers of element of 1 and 0 of the output sequence of the a,b]-shrinking generator were proved.Both the theoretic and the experimental results of local randomness tests show that the a,b]-shrinking generator is suitable for stream cipher cryptosystems.