# Authorization Widget

### Create Signature <a href="#create-signature" id="create-signature"></a>

#### A. Sort ascending parameter name <a href="#a-sort-ascending-parameter-name" id="a-sort-ascending-parameter-name"></a>

```
{ 
  "requestType": "getToken", 
  "phoneNumber": "081286288844", 
  "reqDtime": "20181127182011", 
  "transNumber": "20181234567890" 
}
```

Result:

```
1. phoneNumber 
2. reqDtime 
3. requestType 
4. transNumber
```

#### B. Join all parameters <a href="#b-join-all-parameters" id="b-join-all-parameters"></a>

```
08128628884420181127182011getToken20181234567890
```

#### C. Hash Using hash\_mach sha256 with keysignature <a href="#c-hash-using-hash_mach-sha256-with-keysignature" id="c-hash-using-hash_mach-sha256-with-keysignature"></a>

```
keysignature is hexa from secret key 
secretkey : e4siErApPs2020 
keysignature : 6534736985724170507332303230
```

#### D. Convert to uppercase, result of point C <a href="#d-convert-to-uppercase-result-of-point-c" id="d-convert-to-uppercase-result-of-point-c"></a>

```
55C9AF15C92408C32211894070BAIEC02C2C17BEAD626934F6IC0IA3117A05CF
```

### Code example to generate signature <a href="#code-example-to-generate-signature" id="code-example-to-generate-signature"></a>

```
function signature($array, $kunci){ 
  unset($array["signature"]); 
  ksort($array); 
  $output = ""; 
    foreach($array as $key => $val){ 
      $output .= $val; 
    } 
  $output = hash_hmac("sha256", $output, strToHex($kunci)); 

return strtoupper($output); 
}
```


---

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