variable word短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 可变化词 R block cipher is a new block cipher suitable for database encryption which is based on RC5 and RC6. R has a variable word size, a variable number of rounds, and a variabled- length secret key. 在 RC5和 RC6基础上提出了一个新的适合数据库加密的 R分组加密算法，它具有分组长度、轮数和密钥长度均可变的特点。 http://dj.iciba.com