팝빌 알림톡 기능 추가

plugin/kakao5/Popbill/crypto.php

@@ -0,0 +1,44 @@
+<?php
+
+class cryptor {
+    public function encrypt($key, $data) {
+        // 키 설정
+        $publickey = $this->keyInstance($key);
+
+        openssl_public_encrypt($data, $encrypted, $publickey, OPENSSL_PKCS1_OAEP_PADDING);
+        
+        return base64_encode($encrypted);
+    }
+
+    public function keyInstance($publickey) {
+        // startline , endline 설정
+        $start_line = "-----BEGIN PUBLIC KEY-----";
+        $end_line = "-----END PUBLIC KEY-----";
+
+        // key 추출 (정규식)
+        $pattern = "/-+([a-zA-Z\s]*)-+([^-]*)-+([a-zA-Z\s]*)-+/";
+        if(preg_match($pattern, $publickey, $matches)) {
+            $splitKey = $matches[2];
+            $splitKey = preg_replace('/\s+/', '', $splitKey);
+        } else {
+            return null;
+        }
+
+        $key = "";
+
+        for($pos=1; $pos <= strlen($splitKey); $pos++) {
+            if($pos % 64 == 0) {
+                $key = $key . $splitKey[$pos-1] . "\n";
+            } else {
+                $key = $key . $splitKey[$pos-1];
+            }
+        }
+
+        // startline, endline 추가
+        $key = $start_line . "\n" . $key . "\n" . $end_line;
+
+        return $key;
+    }
+}
+
+?>