身份证合法性检验

HGIDhelper.m

//
//  HGIDHelper.m
//  modelbase
//
//  Created by WangRui on 5/23/14.
//  Copyright (c) 2014 HamGuy. All rights reserved.
//

#import "HGIDHelper.h"

@implementation HGIDHelper

/**
 * 功能:获取指定范围的字符串
 * 参数:字符串的开始小标
 * 参数:字符串的结束下标
 */
+(NSString *)getStringWithRange:(NSString *)str Value1:(NSInteger )value1 Value2:(NSInteger )value2;
{
    return [str substringWithRange:NSMakeRange(value1,value2)];
}
/**
 * 功能:判断是否在地区码内
 * 参数:地区码
 */
+(BOOL)areaCode:(NSString *)code
{
    NSMutableDictionary *dic = [[NSMutableDictionary alloc] init];
    [dic setObject:@"北京" forKey:@"11"];
    [dic setObject:@"天津" forKey:@"12"];
    [dic setObject:@"河北" forKey:@"13"];
    [dic setObject:@"山西" forKey:@"14"];
    [dic setObject:@"内蒙古" forKey:@"15"];
    [dic setObject:@"辽宁" forKey:@"21"];
    [dic setObject:@"吉林" forKey:@"22"];
    [dic setObject:@"黑龙江" forKey:@"23"];
    [dic setObject:@"上海" forKey:@"31"];
    [dic setObject:@"江苏" forKey:@"32"];
    [dic setObject:@"浙江" forKey:@"33"];
    [dic setObject:@"安徽" forKey:@"34"];
    [dic setObject:@"福建" forKey:@"35"];
    [dic setObject:@"江西" forKey:@"36"];
    [dic setObject:@"山东" forKey:@"37"];
    [dic setObject:@"河南" forKey:@"41"];
    [dic setObject:@"湖北" forKey:@"42"];
    [dic setObject:@"湖南" forKey:@"43"];
    [dic setObject:@"广东" forKey:@"44"];
    [dic setObject:@"广西" forKey:@"45"];
    [dic setObject:@"海南" forKey:@"46"];
    [dic setObject:@"重庆" forKey:@"50"];
    [dic setObject:@"四川" forKey:@"51"];
    [dic setObject:@"贵州" forKey:@"52"];
    [dic setObject:@"云南" forKey:@"53"];
    [dic setObject:@"西藏" forKey:@"54"];
    [dic setObject:@"陕西" forKey:@"61"];
    [dic setObject:@"甘肃" forKey:@"62"];
    [dic setObject:@"青海" forKey:@"63"];
    [dic setObject:@"宁夏" forKey:@"64"];
    [dic setObject:@"新疆" forKey:@"65"];
    [dic setObject:@"台湾" forKey:@"71"];
    [dic setObject:@"香港" forKey:@"81"];
    [dic setObject:@"澳门" forKey:@"82"];
    [dic setObject:@"国外" forKey:@"91"];
    
    if ([dic objectForKey:code] == nil) {
        
        return NO;
    }
    return YES;
}

/**
 * 功能:验证身份证是否合法
 * 参数:输入的身份证号
 */
+(BOOL)validateIdentifyCardNumber:(NSString *)sPaperId{
    
    //判断位数
    if ([sPaperId length] < 15 ||[sPaperId length] > 18) {
        
        return NO;
    }
    
    NSString *carid = sPaperId;
    long lSumQT =0;
    //加权因子
    int R[] ={7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2 };
    //校验码
    unsigned char sChecker[11]={'1','0','X', '9', '8', '7', '6', '5', '4', '3', '2'};
    
    //将15位身份证号转换成18位
    
    NSMutableString *mString = [NSMutableString stringWithString:sPaperId];
    if ([sPaperId length] == 15) {
        
        
        [mString insertString:@"19" atIndex:6];
        
        long p = 0;
        const char *pid = [mString UTF8String];
        for (int i=0; i<=16; i++)
        {
            p += (pid[i]-48) * R[i];
        }
        
        int o = p%11;
        NSString *string_content = [NSString stringWithFormat:@"%c",sChecker[o]];
        [mString insertString:string_content atIndex:[mString length]];
        carid = mString;
        
    }
    
    //判断地区码
    NSString * sProvince = [carid substringToIndex:2];
    
    if (![HGIDHelper areaCode:sProvince]) {
        
        return NO;
    }
    
    //判断年月日是否有效
    
    //年份
    int strYear = [[HGIDHelper getStringWithRange:carid Value1:6 Value2:4] intValue];
    //月份
    int strMonth = [[HGIDHelper getStringWithRange:carid Value1:10 Value2:2] intValue];
    //日
    int strDay = [[HGIDHelper getStringWithRange:carid Value1:12 Value2:2] intValue];
    
    
    NSTimeZone *localZone = [NSTimeZone localTimeZone];
    NSDateFormatter *dateFormatter = [[NSDateFormatter alloc] init];
    [dateFormatter setDateStyle:NSDateFormatterMediumStyle];
    [dateFormatter setTimeStyle:NSDateFormatterNoStyle];
    [dateFormatter setTimeZone:localZone];
    [dateFormatter setDateFormat:@"yyyy-MM-dd HH:mm:ss"];
    NSDate *date=[dateFormatter dateFromString:[NSString stringWithFormat:@"%d-%d-%d 12:01:01",strYear,strMonth,strDay]];
    if (date == nil) {
        
        return NO;
    }
    
    const char *PaperId  = [carid UTF8String];
    
    //检验长度
    if( 18 != strlen(PaperId)) return -1;
    //校验数字
    for (int i=0; i<18; i++)
    {
        if ( !isdigit(PaperId[i]) && !(('X' == PaperId[i] || 'x' == PaperId[i]) && 17 == i) )
        {
            return NO;
        }
    }
    //验证最末的校验码
    for (int i=0; i<=16; i++)
    {
        lSumQT += (PaperId[i]-48) * R[i];
    }
    if (sChecker[lSumQT%11] != PaperId[17] )
    {
        return NO;
    }
    
    return YES;
}

@end