如上图所示,就是身份证隐藏后的结果,把中间位数都隐藏成了*号,
我们通常在网页显示给用户看的身份证的时候,通常都不能全部显示给用户,防止别人恶意登录之后,窃取用户的信息
下面是方法:
- /// <summary>
- /// 隐藏身份证号码
- /// </summary>
- /// <param name="card"></param>
- /// <returns></returns>
- public static string IDCardHide(string card)
- {
- string temp = null;
- if (card.Length == 18)
- {
- temp = card.Substring(0, 5) + "***********" + card.Substring(16, 2);
- }
- if (card.Length == 15)
- {
- temp = card.Substring(0, 4) + "********" + card.Substring(12, 3);
- }
- return temp;
- }
- /// <summary>
- /// 验证身份证合理性
- /// </summary>
- /// <param name="Id"></param>
- /// <returns></returns>
- public static bool CheckIDCard(string idNumber)
- {
- if (idNumber.Length == 18)
- {
- bool check = CheckIDCard18(idNumber);
- return check;
- }
- else if (idNumber.Length == 15)
- {
- bool check = CheckIDCard15(idNumber);
- return check;
- }
- else
- {
- return false;
- }
- }
- /// <summary>
- /// 18位身份证号码验证
- /// </summary>
- private static bool CheckIDCard18(string idNumber)
- {
- long n = 0;
- if (long.TryParse(idNumber.Remove(17), out n) == false
- || n < Math.Pow(10, 16) || long.TryParse(idNumber.Replace('x', '0').Replace('X', '0'), out n) == false)
- {
- return false;//数字验证
- }
- string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
- if (address.IndexOf(idNumber.Remove(2)) == -1)
- {
- return false;//省份验证
- }
- string birth = idNumber.Substring(6, 8).Insert(6, "-").Insert(4, "-");
- DateTime time = new DateTime();
- if (DateTime.TryParse(birth, out time) == false)
- {
- return false;//生日验证
- }
- string[] arrVarifyCode = ("1,0,x,9,8,7,6,5,4,3,2").Split(',');
- string[] Wi = ("7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2").Split(',');
- char[] Ai = idNumber.Remove(17).ToCharArray();
- int sum = 0;
- for (int i = 0; i < 17; i++)
- {
- sum += int.Parse(Wi[i]) * int.Parse(Ai[i].ToString());
- }
- int y = -1;
- Math.DivRem(sum, 11, out y);
- if (arrVarifyCode[y] != idNumber.Substring(17, 1).ToLower())
- {
- return false;//校验码验证
- }
- return true;//符合GB11643-1999标准
- }
- /// <summary>
- /// 16位身份证号码验证
- /// </summary>
- private static bool CheckIDCard15(string idNumber)
- {
- long n = 0;
- if (long.TryParse(idNumber, out n) == false || n < Math.Pow(10, 14))
- {
- return false;//数字验证
- }
- string address = "11x22x35x44x53x12x23x36x45x54x13x31x37x46x61x14x32x41x50x62x15x33x42x51x63x21x34x43x52x64x65x71x81x82x91";
- if (address.IndexOf(idNumber.Remove(2)) == -1)
- {
- return false;//省份验证
- }
- string birth = idNumber.Substring(6, 6).Insert(4, "-").Insert(2, "-");
- DateTime time = new DateTime();
- if (DateTime.TryParse(birth, out time) == false)
- {
- return false;//生日验证
- }
- return true;
- }
复制代码
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