iOS MD5 加密算法。

//头文件
#import <Foundation/Foundation.h>


@interface iOSMD5 : NSObject {
    
}


+(NSString *) md5: (NSString *) inPutText ;
@end


//.m文件
#import "iOSMD5.h"
#import "CommonCrypto/CommonDigest.h"

@implementation MyMD5

+(NSString *) md5: (NSString *) inPutText 
{
    const char *cStr = [inPutText UTF8String];
    unsigned char result[CC_MD5_DIGEST_LENGTH];
    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];
}

/*
NSMutableString *hash = [NSMutableString string];
   for (int i = 0; i < 16; i++)
        [hash appendFormat:@"%02X", result[i]];
   return [hash lowercaseString];
*/
@end


XXXXXXX.text = [iOSMD5 md5:inputField.text];