Base64、MD5加密

「爱情、让人受尽委屈。」 2023-10-17 06:14 23阅读 0赞

#import "ViewController.h"
    #import "Base64.h"
    #import "NSString+MD5.h"
    
    //使用类别，需要导入类别头文件
    #import "NSString+Contains.h"
    
    @interface ViewController ()
    
    @end
    
    @implementation ViewController
    
    - (void)viewDidLoad
    {
        [super viewDidLoad];
        
        //取出NSData类型
    //    NSString *str = @"123rwerfsdf45355sfdgstet";
    //    NSData *data = [str dataUsingEncoding:NSUTF8StringEncoding];
    //    int a = 0;
    //    [data getBytes:&a length:data.length];
    //    NSLog(@"%@",a);
        
    	if ([@"a98313284845361210" isNumberString])
        {
            NSLog(@"纯数字");
        }
        else
        {
            NSLog(@"非纯数字");
        }
        
        //判断字符串A是否包含字符串B，字符串B必须是A中紧密相连的字符
        if ([@"abcd" containsString:@"acd"])
        {
            NSLog(@"包含");
        }
        else
        {
            NSLog(@"不包含");
        }
    }
    
    //Base64（可逆加密）编码
    - (IBAction)base64Encoding:(UIButton *)sender
    {
        //对字符串进行Base64编码
        _base64Label.text = [_textField.text base64EncodedString];
    }
    
    //Base64解码
    - (IBAction)base64Decode:(UIButton *)sender
    {
        //对字符串进行Base64解码
        _base64DecodeLabel.text = [_base64Label.text base64DecodedString];
    }
    
    //MD5加密（不可逆加密），常用于数据的校验
    - (IBAction)MD5Encode:(UIButton *)sender
    {
        _MD5Encode.text = [_textField.text MD5];
    }
    
    - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
    {
        [self.view endEditing:YES];
    }

如下：

![Center][]

还可参考两篇文章

[iOS一行代码进行RSA、DES 、AES、MD5加密、解密][iOS_RSA_DES _AES_MD5]

[Center]: https://img-blog.csdn.net/20160703171320499?watermark/2/text/aHR0cDovL2Jsb2cuY3Nkbi5uZXQv/font/5a6L5L2T/fontsize/400/fill/I0JBQkFCMA==/dissolve/70/gravity/Center
[iOS_RSA_DES _AES_MD5]: http://blog.csdn.net/minggeqingchun/article/details/51554366