Objective-C MD5加密字符串

Objective-C MD5加密字符串

@interface NSString (MyExtensions)

- (NSString *) md5;

@end

@implementation NSString (MyExtensions)

- (NSString *) md5

{

const char *cStr = [self 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]

];

}

@end