OC MD5

#import <Foundation/Foundation.h>

@interface MD5Util : NSObject
+ (NSString *)md5HexDigest:(NSString*)input;
@end

#import "MD5Util.h"
#import <CommonCrypto/CommonDigest.h>
@implementation MD5Util

+ (NSString *)md5HexDigest:(NSString*)input 
{



const char *cStr = [input UTF8String];
unsigned char result[16];
CC_MD5( cStr, 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]
         ] lowercaseString];



}