1.MD5加密

import "ViewController.h"

import "MBProgressHUD.h"

import "NSString+Hash.h"

@interface ViewController ()
@property (weak, nonatomic) IBOutlet UITextField *username;
@property (weak, nonatomic) IBOutlet UITextField *pwd;

• (IBAction)login;
  @end

@implementation ViewController

• (void)viewDidLoad
  {
  [super viewDidLoad];
  // Do any additional setup after loading the view, typically from a nib.
  }

• (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
  {
  [self.view endEditing:YES];
  }

• (IBAction)login {
  // 1.用户名
  NSString *usernameText = self.username.text;
  if (usernameText.length == 0) {
  [MBProgressHUD showError:@"请输入用户名"];
  return;
  }

  // 2.密码
  NSString *pwdText = self.pwd.text;
  if (pwdText.length == 0) {
  [MBProgressHUD showError:@"请输入密码"];
  return;
  }

  // 增加蒙板
  [MBProgressHUD showMessage:@"正在拼命登录中...."];

  // 3.发送用户名和密码给服务器(走HTTP协议)
  // 创建一个URL ： 请求路径
  NSURL *url = [NSURL URLWithString:@"http://218.83.161.124:8080/job/login"];

  // 创建一个请求
  NSMutableURLRequest *request = [NSMutableURLRequest requestWithURL:url];

  // 5秒后算请求超时（默认60s超时）
  request.timeoutInterval = 15;

  request.HTTPMethod = @"POST";

warning 对pwdText进行加密

pwdText = [self MD5Reorder:pwdText];

// 设置请求体
NSString *param = [NSString stringWithFormat:@"username=%@&pwd=%@", usernameText, pwdText];

NSLog(@"%@", param);

// NSString --> NSData
request.HTTPBody = [param dataUsingEncoding:NSUTF8StringEncoding];

// 设置请求头信息
[request setValue:@"iPhone 6" forHTTPHeaderField:@"User-Agent"];

// 发送一个同步请求(在主线程发送请求)
// queue ：存放completionHandler这个任务
NSOperationQueue *queue = [NSOperationQueue mainQueue];
[NSURLConnection sendAsynchronousRequest:request queue:queue completionHandler:
 ^(NSURLResponse *response, NSData *data, NSError *connectionError) {
     // 隐藏蒙板
     [MBProgressHUD hideHUD];

    // 这个block会在请求完毕的时候自动调用
    if (connectionError || data == nil) { // 一般请求超时就会来到这
        [MBProgressHUD showError:@"请求失败"];
        return;
    }

    // 解析服务器返回的JSON数据
    NSDictionary *dict = [NSJSONSerialization JSONObjectWithData:data options:NSJSONReadingMutableLeaves error:nil];
    NSString *error = dict[@"error"];
    if (error) {
        [MBProgressHUD showError:error];
    } else {
        NSString *success = dict[@"success"];
        [MBProgressHUD showSuccess:success];
    }
 }];

}

/**

• MD5(pass.salt)
• @param text 明文
• @return 加密后的密文
  */

• (NSString *)MD5Salt:(NSString *)text
  {
  // 撒盐：随机地往明文中插入任意字符串
  NSString *salt = [text stringByAppendingString:@"aaa"];
  return [salt md5String];
  }

/**

• MD5(MD5($pass))
• @param text 明文
• @return 加密后的密文
  */

• (NSString *)doubleMD5:(NSString *)text
  {
  return [[text md5String] md5String];
  }

/**

• 先加密，后乱序
• @param text 明文
• @return 加密后的密文
  */

• (NSString *)MD5Reorder:(NSString *)text
  {
  NSString *pwd = [text md5String];

  // 加密后pwd == 3f853778a951fd2cdf34dfd16504c5d8
  NSString *prefix = [pwd substringFromIndex:2];
  NSString *subfix = [pwd substringToIndex:2];

  // 乱序后 result == 853778a951fd2cdf34dfd16504c5d83f
  NSString *result = [prefix stringByAppendingString:subfix];

  NSLog(@"\ntext=%@\npwd=%@\nresult=%@", text, pwd, result);

  return result;
  }
  @end

2.AES加密

AES加密iOS代码加密使用方法

// AES加密

NSString *encryptedData = [AESCrypt encrypt:userName password:password];//加密

NSString *message = [AESCrypt decrypt:encryptedData password:password]; //解密

NSLog(@"加密结果 = %@",encryptedData);

NSLog(@"解密结果 = %@",message);

3.BASE64加密iOS代码加密添加如下方法

.h

• (NSString*)encodeBase64String:(NSString *)input;

• (NSString*)decodeBase64String:(NSString *)input;

• (NSString*)encodeBase64Data:(NSData *)data;

• (NSString*)decodeBase64Data:(NSData *)data;

2
.m

• (NSString*)encodeBase64String:(NSString * )input {

  NSData *data = [input dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];

  data = [GTMBase64 encodeData:data];

  NSString *base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

  return base64String;

}

• (NSString*)decodeBase64String:(NSString * )input {

  NSData *data = [input dataUsingEncoding:NSUTF8StringEncoding allowLossyConversion:YES];

  data = [GTMBase64 decodeData:data];

  NSString *base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

  return base64String;

}

• (NSString*)encodeBase64Data:(NSData *)data {

  data = [GTMBase64 encodeData:data];

  NSString *base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

  return base64String;

}

• (NSString*)decodeBase64Data:(NSData *)data {

  data = [GTMBase64 decodeData:data];

  NSString *base64String = [[NSString alloc] initWithData:data encoding:NSUTF8StringEncoding];

  return base64String;

}

3.BASE64加密

BASE64加密iOS代码加密使用方法

// BASE64加密

NSString *baseEncodeString = [GTMBase64 encodeBase64String:password];

NSString *baseDecodeString = [GTMBase64 decodeBase64String:baseEncodeString];

NSLog(@"baseEncodeString = %@",baseEncodeString);

NSLog(@"baseDecodeString = %@",baseDecodeString);