ios SDK自带 MD5加密

#import <Foundation/Foundation.h>


@interface MyMD5 : NSObject {
    
}
/*****
 2011.09.15
 创建： shen
 MD5 加密
 *****/

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

#import "MyMD5.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];
}
@end