README.md · huan/xm-anti-replay-master

## 接口防重放、防篡改
#### 背景

API接口由于需要供第三方服务调用，所以必须暴露到外网，并提供了具体请求地址和请求参数
为了防止被第别有用心之人获取到真实请求参数后再次发起请求获取信息，需要采取很多安全机制；

#### 安全策略

- 1.首先： 需要采用https方式对第三方提供接口，数据的加密传输会更安全，即便是被破解，也需要耗费更多时间
- 2.其次：需要有安全的后台验证机制【本文重点】，达到防参数篡改+防二次请求，防止重放攻击必须要保证请求仅一次有效；

#### 防参数篡改

客户端使用约定好的秘钥对传输参数进行加密，得到签名值signature，并且将签名值也放入请求参数中，发送请求给服务端

服务端接收客户端的请求，然后使用约定好的秘钥对请求的参数（除了signature以外）再次进行签名，得到签名值autograph。

服务端对比signature和autograph的值，如果对比一致，认定为合法请求。如果对比不一致，说明参数被篡改，认定为非法请求

#### 防二次请求

-  基于timestamp的方案 
-  基于nonce的方案 
-  基于timestamp和nonce的方案（推荐）

## pig整合anti-replay

- pig-upms-biz添加依赖

```xml
<dependency>
			<groupId>com.xieman</groupId>
			<artifactId>xm-anti-replay-spring-boot-starter</artifactId>
			<version>0.0.1-SNAPSHOT</version>
	</dependency>
```

- 添加配置文件,注意也要配置redis

```yml
anti:
  replay:
    signature-algorithm:
      salt: 67236618ad696de2a91700b1afda43d0 #盐值 加密生成signature时用到
    request:
      expire-time: 10   #请求过期时间
    cache:
      cache-key-prefix: NARUTO:SECURITY:ANTI-REPLAY:REQUEST_ID_
      lock-hold-time: 30  #锁释放时间
    header-key:
      signature: mySignature # 与请求头参数名对应
      nonce: mtNonce # 与请求头参数名对应
      timestamp: myTimestamp # 与请求头参数名对应
      url: myUrl # 与请求头参数名对应
      token: myToken # 与请求头参数名对应
```

- 方法添加@XMAntiReplay注解，启动服务使用postman进行测试。注意请求头需要携带的参数。其中signature的值,**为请求配置文件中配置的** salt**值+请求头参数值nonce+真实请求的url+请求头参数值timestamp+请求头参数值token进行md5加密后的值**。注意，如果方法带有参数，对参数也应该加密。具体逻辑可以查看**MdFiveUtils的digest**方法。md5加密,pig-ui可以使用**CryptoJS.MD5**进行加密。只有通过验证，才可访问方法。

```java
@RestController
@RequestMapping
public class DemoController {
    @XMAntiReplay
    @GetMapping("/test")
    public String test(String username,String password){
        return "hello";
    }

@XMAntiReplay
    @PostMapping("/tes2")
    public String test2(@RequestParam String username,String password){
        return "hello";
    }
}
```

- 注意，POST 请求必须采用` 'content-type': 'application/x-www-form-urlencoded'`

#### 前端参考代码-小程序

```javascript
 //get 请求
      const salt = "67236618ad696de2a91700b1afda43d0"
      const timestamp = new Date().getTime()
      const nonce = "uasd9wqeee1"
      const token = 'hfM27ciAg9Odf6NQhuZcPBbiImKyP6c2DSscTAwu8IRLiQwzZwJ23RaOQj4u6gm1TYV1BdfcGrMLQ_MBVCWIqiMpuG77PtB9d9W7bAx2rPsdXRNNyVzQLtIxJ8h1n113'
      const url = '/test'
      const params = {"username":"xxxx","password":"xxx"}
      const sign = salt+nonce+url+timestamp+token+ getSortedQueryString(params)
      console.log('sign:'+sign)

const signature = md5(sign);
      console.log('signature:'+signature)
      wx.request({
        url: 'http://127.0.0.1:10001'+url, //仅为示例，并非真实的接口地址
        data:params,
        header: {
          'content-type': 'application/json;charset=utf-8', // 默认值
          'Authorization': 'Bearer '+token,
          'Accept-Charset':'UTF-8',
          'token':token,
          'nonce':nonce,
          'url':url,
          'timestamp':timestamp,
          'signature':signature
        },
        success (res) {
          console.log(res.data)
        }
      })
```

```javascript
//POST请求
 const salt = "67236618ad696de2a91700b1afda43d0"
        const timestamp = new Date().getTime()
        const nonce = "uasd9wqeeeda1"
        const token = 'hfM27ciAg9Odf6NQhuZcPBbiImKyP6c2DSscTAwu8IRLiQwzZwJ23RaOQj4u6gm1TYV1BdfcGrMLQ_MBVCWIqiMpuG77PtB9d9W7bAx2rPsdXRNNyVzQLtIxJ8h1n113'
        const url = '/tes2'
        const params = {"username":"xxxx","password":"xxx","sss":"dddd"}

const sign = salt+nonce+url+timestamp+token+ getSortedQueryString(params);
        console.log('sign:'+sign)
  
       
        const signature = md5(sign);
        console.log('signature:'+signature)
        wx.request({
          url: 'http://127.0.0.1:10001'+url, //仅为示例，并非真实的接口地址
          method:'POST',
          data:params,
          header: {
            'content-type': 'application/x-www-form-urlencoded', // 默认值
            'Authorization': 'Bearer '+token,
            'Accept-Charset':'UTF-8',
            'token':token,
            'nonce':nonce,
            'url':url,
            'timestamp':timestamp,
            'signature':signature
          },
          success (res) {
            console.log(res.data)
          }
        })
```

md5.js

```js
function md5(string) {  
  function md5_RotateLeft(lValue, iShiftBits) {  
      return (lValue << iShiftBits) | (lValue >>> (32 - iShiftBits));  
  }  
  function md5_AddUnsigned(lX, lY) {  
      var lX4, lY4, lX8, lY8, lResult;  
      lX8 = (lX & 0x80000000);  
      lY8 = (lY & 0x80000000);  
      lX4 = (lX & 0x40000000);  
      lY4 = (lY & 0x40000000);  
      lResult = (lX & 0x3FFFFFFF) + (lY & 0x3FFFFFFF);  
      if (lX4 & lY4) {  
          return (lResult ^ 0x80000000 ^ lX8 ^ lY8);  
      }  
      if (lX4 | lY4) {  
          if (lResult & 0x40000000) {  
              return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);  
          } else {  
              return (lResult ^ 0x40000000 ^ lX8 ^ lY8);  
          }  
      } else {  
          return (lResult ^ lX8 ^ lY8);  
      }  
  }  
  function md5_F(x, y, z) {  
      return (x & y) | ((~x) & z);  
  }  
  function md5_G(x, y, z) {  
      return (x & z) | (y & (~z));  
  }  
  function md5_H(x, y, z) {  
      return (x ^ y ^ z);  
  }  
  function md5_I(x, y, z) {  
      return (y ^ (x | (~z)));  
  }  
  function md5_FF(a, b, c, d, x, s, ac) {  
      a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_F(b, c, d), x), ac));  
      return md5_AddUnsigned(md5_RotateLeft(a, s), b);  
  };  
  function md5_GG(a, b, c, d, x, s, ac) {  
      a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_G(b, c, d), x), ac));  
      return md5_AddUnsigned(md5_RotateLeft(a, s), b);  
  };  
  function md5_HH(a, b, c, d, x, s, ac) {  
      a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_H(b, c, d), x), ac));  
      return md5_AddUnsigned(md5_RotateLeft(a, s), b);  
  };  
  function md5_II(a, b, c, d, x, s, ac) {  
      a = md5_AddUnsigned(a, md5_AddUnsigned(md5_AddUnsigned(md5_I(b, c, d), x), ac));  
      return md5_AddUnsigned(md5_RotateLeft(a, s), b);  
  };  
  function md5_ConvertToWordArray(string) {  
      var lWordCount;  
      var lMessageLength = string.length;  
      var lNumberOfWords_temp1 = lMessageLength + 8;  
      var lNumberOfWords_temp2 = (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64;  
      var lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16;  
      var lWordArray = Array(lNumberOfWords - 1);  
      var lBytePosition = 0;  
      var lByteCount = 0;  
      while (lByteCount < lMessageLength) {  
          lWordCount = (lByteCount - (lByteCount % 4)) / 4;  
          lBytePosition = (lByteCount % 4) * 8;  
          lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount) << lBytePosition));  
          lByteCount++;  
      }  
      lWordCount = (lByteCount - (lByteCount % 4)) / 4;  
      lBytePosition = (lByteCount % 4) * 8;  
      lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80 << lBytePosition);  
      lWordArray[lNumberOfWords - 2] = lMessageLength << 3;  
      lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;  
      return lWordArray;  
  };  
  function md5_WordToHex(lValue) {  
      var WordToHexValue = "",  
          WordToHexValue_temp = "",  
          lByte, lCount;  
      for (lCount = 0; lCount <= 3; lCount++) {  
          lByte = (lValue >>> (lCount * 8)) & 255;  
          WordToHexValue_temp = "0" + lByte.toString(16);  
          WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length - 2, 2);  
      }  
      return WordToHexValue;  
  };  
  function md5_Utf8Encode(string) {  
      string = string.replace(/\r\n/g, "\n");  
      var utftext = "";  
      for (var n = 0; n < string.length; n++) {  
          var c = string.charCodeAt(n);  
          if (c < 128) {  
              utftext += String.fromCharCode(c);  
          } else if ((c > 127) && (c < 2048)) {  
              utftext += String.fromCharCode((c >> 6) | 192);  
              utftext += String.fromCharCode((c & 63) | 128);  
          } else {  
              utftext += String.fromCharCode((c >> 12) | 224);  
              utftext += String.fromCharCode(((c >> 6) & 63) | 128);  
              utftext += String.fromCharCode((c & 63) | 128);  
          }  
      }  
      return utftext;  
  };  
  var x = Array();  
  var k, AA, BB, CC, DD, a, b, c, d;  
  var S11 = 7,  
      S12 = 12,  
      S13 = 17,  
      S14 = 22;  
  var S21 = 5,  
      S22 = 9,  
      S23 = 14,  
      S24 = 20;  
  var S31 = 4,  
      S32 = 11,  
      S33 = 16,  
      S34 = 23;  
  var S41 = 6,  
      S42 = 10,  
      S43 = 15,  
      S44 = 21;  
  string = md5_Utf8Encode(string);  
  x = md5_ConvertToWordArray(string);  
  a = 0x67452301;  
  b = 0xEFCDAB89;  
  c = 0x98BADCFE;  
  d = 0x10325476;  
  for (k = 0; k < x.length; k += 16) {  
      AA = a;  
      BB = b;  
      CC = c;  
      DD = d;  
      a = md5_FF(a, b, c, d, x[k + 0], S11, 0xD76AA478);  
      d = md5_FF(d, a, b, c, x[k + 1], S12, 0xE8C7B756);  
      c = md5_FF(c, d, a, b, x[k + 2], S13, 0x242070DB);  
      b = md5_FF(b, c, d, a, x[k + 3], S14, 0xC1BDCEEE);  
      a = md5_FF(a, b, c, d, x[k + 4], S11, 0xF57C0FAF);  
      d = md5_FF(d, a, b, c, x[k + 5], S12, 0x4787C62A);  
      c = md5_FF(c, d, a, b, x[k + 6], S13, 0xA8304613);  
      b = md5_FF(b, c, d, a, x[k + 7], S14, 0xFD469501);  
      a = md5_FF(a, b, c, d, x[k + 8], S11, 0x698098D8);  
      d = md5_FF(d, a, b, c, x[k + 9], S12, 0x8B44F7AF);  
      c = md5_FF(c, d, a, b, x[k + 10], S13, 0xFFFF5BB1);  
      b = md5_FF(b, c, d, a, x[k + 11], S14, 0x895CD7BE);  
      a = md5_FF(a, b, c, d, x[k + 12], S11, 0x6B901122);  
      d = md5_FF(d, a, b, c, x[k + 13], S12, 0xFD987193);  
      c = md5_FF(c, d, a, b, x[k + 14], S13, 0xA679438E);  
      b = md5_FF(b, c, d, a, x[k + 15], S14, 0x49B40821);  
      a = md5_GG(a, b, c, d, x[k + 1], S21, 0xF61E2562);  
      d = md5_GG(d, a, b, c, x[k + 6], S22, 0xC040B340);  
      c = md5_GG(c, d, a, b, x[k + 11], S23, 0x265E5A51);  
      b = md5_GG(b, c, d, a, x[k + 0], S24, 0xE9B6C7AA);  
      a = md5_GG(a, b, c, d, x[k + 5], S21, 0xD62F105D);  
      d = md5_GG(d, a, b, c, x[k + 10], S22, 0x2441453);  
      c = md5_GG(c, d, a, b, x[k + 15], S23, 0xD8A1E681);  
      b = md5_GG(b, c, d, a, x[k + 4], S24, 0xE7D3FBC8);  
      a = md5_GG(a, b, c, d, x[k + 9], S21, 0x21E1CDE6);  
      d = md5_GG(d, a, b, c, x[k + 14], S22, 0xC33707D6);  
      c = md5_GG(c, d, a, b, x[k + 3], S23, 0xF4D50D87);  
      b = md5_GG(b, c, d, a, x[k + 8], S24, 0x455A14ED);  
      a = md5_GG(a, b, c, d, x[k + 13], S21, 0xA9E3E905);  
      d = md5_GG(d, a, b, c, x[k + 2], S22, 0xFCEFA3F8);  
      c = md5_GG(c, d, a, b, x[k + 7], S23, 0x676F02D9);  
      b = md5_GG(b, c, d, a, x[k + 12], S24, 0x8D2A4C8A);  
      a = md5_HH(a, b, c, d, x[k + 5], S31, 0xFFFA3942);  
      d = md5_HH(d, a, b, c, x[k + 8], S32, 0x8771F681);  
      c = md5_HH(c, d, a, b, x[k + 11], S33, 0x6D9D6122);  
      b = md5_HH(b, c, d, a, x[k + 14], S34, 0xFDE5380C);  
      a = md5_HH(a, b, c, d, x[k + 1], S31, 0xA4BEEA44);  
      d = md5_HH(d, a, b, c, x[k + 4], S32, 0x4BDECFA9);  
      c = md5_HH(c, d, a, b, x[k + 7], S33, 0xF6BB4B60);  
      b = md5_HH(b, c, d, a, x[k + 10], S34, 0xBEBFBC70);  
      a = md5_HH(a, b, c, d, x[k + 13], S31, 0x289B7EC6);  
      d = md5_HH(d, a, b, c, x[k + 0], S32, 0xEAA127FA);  
      c = md5_HH(c, d, a, b, x[k + 3], S33, 0xD4EF3085);  
      b = md5_HH(b, c, d, a, x[k + 6], S34, 0x4881D05);  
      a = md5_HH(a, b, c, d, x[k + 9], S31, 0xD9D4D039);  
      d = md5_HH(d, a, b, c, x[k + 12], S32, 0xE6DB99E5);  
      c = md5_HH(c, d, a, b, x[k + 15], S33, 0x1FA27CF8);  
      b = md5_HH(b, c, d, a, x[k + 2], S34, 0xC4AC5665);  
      a = md5_II(a, b, c, d, x[k + 0], S41, 0xF4292244);  
      d = md5_II(d, a, b, c, x[k + 7], S42, 0x432AFF97);  
      c = md5_II(c, d, a, b, x[k + 14], S43, 0xAB9423A7);  
      b = md5_II(b, c, d, a, x[k + 5], S44, 0xFC93A039);  
      a = md5_II(a, b, c, d, x[k + 12], S41, 0x655B59C3);  
      d = md5_II(d, a, b, c, x[k + 3], S42, 0x8F0CCC92);  
      c = md5_II(c, d, a, b, x[k + 10], S43, 0xFFEFF47D);  
      b = md5_II(b, c, d, a, x[k + 1], S44, 0x85845DD1);  
      a = md5_II(a, b, c, d, x[k + 8], S41, 0x6FA87E4F);  
      d = md5_II(d, a, b, c, x[k + 15], S42, 0xFE2CE6E0);  
      c = md5_II(c, d, a, b, x[k + 6], S43, 0xA3014314);  
      b = md5_II(b, c, d, a, x[k + 13], S44, 0x4E0811A1);  
      a = md5_II(a, b, c, d, x[k + 4], S41, 0xF7537E82);  
      d = md5_II(d, a, b, c, x[k + 11], S42, 0xBD3AF235);  
      c = md5_II(c, d, a, b, x[k + 2], S43, 0x2AD7D2BB);  
      b = md5_II(b, c, d, a, x[k + 9], S44, 0xEB86D391);  
      a = md5_AddUnsigned(a, AA);  
      b = md5_AddUnsigned(b, BB);  
      c = md5_AddUnsigned(c, CC);  
      d = md5_AddUnsigned(d, DD);  
  }  
  return (md5_WordToHex(a) + md5_WordToHex(b) + md5_WordToHex(c) + md5_WordToHex(d)).toLowerCase();  
}  
module.exports.md5 = md5; 
```

- utils.js

```js

export const sortParams = params => {
    var keys = Object.keys(params);
    keys.sort();
    var sortedParams = {};
    for (var i = 0; i < keys.length; i++) {
        var key = keys[i];
        sortedParams[key] = params[key];
    }
    return sortedParams;
}

export const getSortedQueryString = params=> {
  const sortedKeys = Object.keys(params).sort(); // 对参数键进行排序
  let queryString = '';
 
  sortedKeys.forEach(key => {
    const value = params[key];
    const encodedKey = encodeURIComponent(key);
    const encodedValue = encodeURIComponent(value);
    queryString += `${encodedKey}=${encodedValue}&`;
  });
 
  // 移除末尾的 '&'
  return queryString.length > 0 ? queryString.substring(0, queryString.length - 1) : queryString;
}
```

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