身份证号码有效性检测

身份证号码有效性检测

在开发软件的时候有些注册需要身份证号等信息，并且要求号码的正确性。

简单的身份证号码有效性检测

- (BOOL)verifyIdentityCardNum {
    NSString *regex2 = @"^(\\d{14}|\\d{17})(\\d|[xX])$";
    return [self q_isValidateByRegex:regex2];
}

精确的身份证号码有效性检测

- (BOOL)verifyIdentityCardNum {

    NSString *value = [self stringByTrimmingCharactersInSet:[NSCharacterSet whitespaceAndNewlineCharacterSet]];

    int length =0;
    if (!value) {
        return NO;
    } else {
        length = (int)value.length;

        if (length !=15 && length !=18) {
            return NO;
        }
    }

    // 省份代码
    NSArray *areasArray =@[@"11",@"12", @"13",@"14", @"15",@"21", @"22",@"23", @"31",@"32", @"33",@"34", @"35",@"36", @"37",@"41", @"42",@"43", @"44",@"45", @"46",@"50", @"51",@"52", @"53",@"54", @"61",@"62", @"63",@"64", @"65",@"71", @"81",@"82", @"91"];

    NSString *valueStart2 = [value substringToIndex:2];
    BOOL areaFlag =NO;
    for (NSString *areaCode in areasArray) {
        if ([areaCode isEqualToString:valueStart2]) {
            areaFlag =YES;
            break;
        }
    }

    if (!areaFlag) {
        return false;
    }

    NSRegularExpression *regularExpression;
    NSUInteger numberofMatch;

    int year =0;
    switch (length) {
        case 15:
            year = [value substringWithRange:NSMakeRange(6,2)].intValue +1900;

            if (year %4 ==0 || (year %100 ==0 && year %4 ==0)) {

                // 测试出生日期的合法性
                regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}$"
                                                                         options:NSRegularExpressionCaseInsensitive
                                                                           error:nil];
            } else {

                // 测试出生日期的合法性
                regularExpression = [[NSRegularExpression alloc]initWithPattern:@"^[1-9][0-9]{5}[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}$"
                                                                        options:NSRegularExpressionCaseInsensitive
                                                                          error:nil];
            }
            numberofMatch = [regularExpression numberOfMatchesInString:value
                                                               options:NSMatchingReportProgress
                                                                 range:NSMakeRange(0, value.length)];

            if (numberofMatch >0) {
                return YES;
            } else {
                return NO;
            }
        case 18:
            year = [value substringWithRange:NSMakeRange(6,4)].intValue;
            if (year %4 ==0 || (year %100 ==0 && year %4 ==0)) {

                // 测试出生日期的合法性
                regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|[1-2][0-9]))[0-9]{3}[0-9Xx]$"
                                                                         options:NSRegularExpressionCaseInsensitive
                                                                           error:nil];
            } else {

                // 测试出生日期的合法性
                regularExpression = [[NSRegularExpression alloc] initWithPattern:@"^[1-9][0-9]{5}19[0-9]{2}((01|03|05|07|08|10|12)(0[1-9]|[1-2][0-9]|3[0-1])|(04|06|09|11)(0[1-9]|[1-2][0-9]|30)|02(0[1-9]|1[0-9]|2[0-8]))[0-9]{3}[0-9Xx]$"
                                                                         options:NSRegularExpressionCaseInsensitive
                                                                           error:nil];
            }
            numberofMatch = [regularExpression numberOfMatchesInString:value
                                                               options:NSMatchingReportProgress
                                                                 range:NSMakeRange(0, value.length)];

            if (numberofMatch > 0) {
                int S = ([value substringWithRange:NSMakeRange(0, 1)].intValue +
                         [value substringWithRange:NSMakeRange(10, 1)].intValue) * 7 +
                ([value substringWithRange:NSMakeRange(1, 1)].intValue +
                 [value substringWithRange:NSMakeRange(11, 1)].intValue) * 9 +
                ([value substringWithRange:NSMakeRange(2, 1)].intValue +
                 [value substringWithRange:NSMakeRange(12, 1)].intValue) * 10 +
                ([value substringWithRange:NSMakeRange(3, 1)].intValue +
                 [value substringWithRange:NSMakeRange(13, 1)].intValue) * 5 +
                ([value substringWithRange:NSMakeRange(4, 1)].intValue +
                 [value substringWithRange:NSMakeRange(14, 1)].intValue) * 8 +
                ([value substringWithRange:NSMakeRange(5, 1)].intValue +
                 [value substringWithRange:NSMakeRange(15, 1)].intValue) * 4 +
                ([value substringWithRange:NSMakeRange(6, 1)].intValue +
                 [value substringWithRange:NSMakeRange(16, 1)].intValue) * 2 +
                [value substringWithRange:NSMakeRange(7, 1)].intValue * 1 +
                [value substringWithRange:NSMakeRange(8, 1)].intValue * 6 +
                [value substringWithRange:NSMakeRange(9, 1)].intValue * 3;
                int Y = S % 11;
                NSString *M =@"F";
                NSString *JYM =@"10X98765432";
                M = [JYM substringWithRange:NSMakeRange(Y,1)];  // 判断校验位
                if ([M isEqualToString:[value substringWithRange:NSMakeRange(17,1)]]) {
                    return YES;                                 // 检测 ID 的校验位
                } else {
                    return NO;
                }

            } else {
                return NO;
            }
        default:
            return NO;
    }
}

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