gistfile1.txt

        NSData *data = [ @"Happy New Year" dataUsingEncoding:NSASCIIStringEncoding allowLossyConversion:YES];
        NSString * encoded = [[NSString alloc] initWithData:[GTMBase64 encodeData:data] encoding:NSASCIIStringEncoding];
        NSLog( @" encoded:%@ " , encoded);
        
        NSString * decoded = [[NSString alloc] initWithData:[GTMBase64 decodeString:encoded] encoding:NSASCIIStringEncoding];
        NSLog( @" decoded:%@ " , decoded);