dekHash static method
DEK算法
str
字符串
返回 hash值
Implementation
static int dekHash(String str) {
var hash = str.length;
for (var i = 0; i < str.length; i++) {
hash = ((hash << 5) ^ (hash >> 27)) ^ str.codeUnitAt(i);
}
return hash & 0x7FFFFFFF;
}