.m文件
#import <Foundation/Foundation.h>
@interface MD5 : NSObject
+ (NSString *)MD5:(NSString *)mdStr;
@end
.h文件
#import "MD5.h"
#import "CommonCrypto/CommonDigest.h"
@implementation MD5
/**
* MD5加密
*
* return 加密后的字符串
*/
+ (NSString *)MD5:(NSString *)mdStr {
const char *original_str = [mdStr UTF8String];
unsigned char result[CC_MD5_DIGEST_LENGTH];
CC_MD5(original_str, strlen(original_str), result);
NSMutableString *hash = [NSMutableString string];
for (int i = 0; i < CC_MD5_DIGEST_LENGTH; i++)
[hash appendFormat:@"%02X", result[i]];
return [hash lowercaseString];
}
@end
