XwaOqk6seAzB5AKxgPyFi4+xNriE3ybSQTpOz5JiboWy4NRePM8Pk5CxCJsA81R8JTSgrSW2H2XQiRYFuXboosoBERh7FI038HQIijxuLk0AKs+0r/w7Y9G2/UT0s9M/Osvife0ala5tKzD38VWpMEMavsJbCSK7m03IdS1AV1E=
sJiZsNERwYTORt4gnH3GiU7tNrb7ne5Fdwxshb6B7Xvh54c1ypY3IJkeaDW8HTZ1Ywn3ZeFNmP/OU4sGrZ8QinetC8R85uA0XLe0g0JIq8LArBrMBv8xr+twptri8KQRpQe36wz9n+9fNdv+ogfYS4YIEc1F5SQHMhMyY4RNfA4=
这个是样例,无论字符长度是多少,加密后都是172位后还有个=号,哪位高手可以指点一下具体是什么算法