//
//  NSString+XHMD5.m
//  XHImageViewer
//
//  Created by 曾 宪华 on 14-2-18.
//  Copyright (c) 2014年 曾宪华 开发团队(http://iyilunba.com ) 本人QQ:543413507 本人QQ群（142557668）. All rights reserved.
//

#import "NSString+XHMD5.h"
#import <CommonCrypto/CommonCrypto.h>

@implementation NSString (XHMD5)

- (NSString *)MD5Hash {
    if(self.length == 0) {
        return nil;
    }
    
	const char *cStr = [self UTF8String];
	unsigned char result[16];
	CC_MD5(cStr, (CC_LONG)strlen(cStr), result);
    
	return [NSString stringWithFormat:@"%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
            result[0], result[1], result[2], result[3], result[4], result[5], result[6], result[7],
            result[8], result[9], result[10], result[11],result[12], result[13], result[14], result[15]];
}

@end
