MD5加密工具

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.h檔案

/** *  MD5加密工具 */#import <Foundation/Foundation.h>@interface MD5Tools : NSObject/** *  MD5加密 */+(NSString *)md5:(NSString *)value;/** *  密碼MD5+手機號後4位 ，在作MD5加密 */+(NSString *)md5Psd:(NSString *)password withPhoneNum:(NSString *)phoneNum;@end

.m檔案

#import "MD5Tools.h"#import <CommonCrypto/CommonDigest.h>@implementation MD5Tools+(NSString *)md5:(NSString *)value{const char *cStr = [value UTF8String];    unsigned char result[16];    CC_MD5( cStr, strlen(cStr), result ); // This is the md5 call    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]];}+(NSString *)md5Psd:(NSString *)password withPhoneNum:(NSString *)phoneNum{    NSString *str = [NSString stringWithFormat:@"%@%@",[MD5Tools md5:password],[[phoneNum substringFromIndex:phoneNum.length-4]substringToIndex:4]];    return [MD5Tools md5:str];}@end