IMC加密数据库解密方法分享

common\conf\server-addr.xml

private static String decrypt(String et){    if (!et.startsWith(“-“)) {           log.error(“Invalid encrypted text: ” + et);        return null;    }    String[] strs = et.substring(1).split(“-“);             
    byte[] bytes = new byte[strs.length];    for (int i = 0; i < strs.length; i++)    {        try {            int b = Integer.parseInt(strs[i]) + i * 16 % 256;                   if (b > 255) {                                                      b -= 256;        }        bytes[i] = ((byte)b);    
    } catch (NumberFormatException nfe) {        return null;        }    }
  String str = new String(bytes);     if (!str.endsWith(“~~”)) {       log.error(“Invalid encrypted text: ” + et);    return null;  }  return str.substring(0, str.length() – 2);    }

str = "-115-97-76-67-49-28-30-14"if str.startswith('-'):    strs = []    bytess = []    strs = str[1:24].split('-')    i = 0    for i in range(len(strs)-2):        try:            strsint = int(strs[i])            b = strsint + i * 16 % 256            if b > 255:                b = b - 256            str1 = chr(b)            if not str1.endswith("~~"):                bytess.append(chr(b))
        except:             pass        i = i + 1    print("密码："+''.join(bytess))else:    print("密文格式不对！")    print("格式应为：-112-81-83-67-55-20-30-1")