时间久了，当我们以前连上了navicat 之后，密码忘记了，但是依然能连接，此时我们想查看密码，应该如何操作呢？
步骤1：点击navicat 文件选项，导出连接，勾选需要导出的数据库，导出的时候一定要勾选导出密码
导出之后，我们会得到一个connections.ncx文件中找到password，然后复制出来
复制出来password内容
然后我们要对这个password 密码进行解密。打开小工具 网站：
小工具解密网站
将如下PHP代码复制进去：
protected $version = 0; protected $aesKey = 'libcckeylibcckey'; protected $aesIv = 'libcciv libcciv '; protected $blowString = '3DC5CA39'; protected $blowKey = null; protected $blowIv = null; public function __construct($version = 12) { $this->version = $version; $this->blowKey = sha1('3DC5CA39', true); $this->blowIv = hex2bin('d9c7c3c8870d64bd'); } public function encrypt($string) { $result = FALSE; switch ($this->version) { case 11: $result = $this->encryptEleven($string); break; case 12: $result = $this->encryptTwelve($string); break; default: break; } return $result; } protected function encryptEleven($string) { $round = intval(floor(strlen($string) / 8)); $leftLength = strlen($string) % 8; $result = ''; $currentVector = $this->blowIv; for ($i = 0; $i < $round; $i++) { $temp = $this->encryptBlock($this->xorBytes(substr($string, 8 * $i, 8), $currentVector)); $currentVector = $this->xorBytes($currentVector, $temp); $result .= $temp; } if ($leftLength) { $currentVector = $this->encryptBlock($currentVector); $result .= $this->xorBytes(substr($string, 8 * $i, $leftLength), $currentVector); } return strtoupper(bin2hex($result)); } protected function encryptBlock($block) { return openssl_encrypt($block, 'BF-ECB', $this->blowKey, OPENSSL_RAW_DATA|OPENSSL_NO_PADDING); } protected function decryptBlock($block) { return openssl_decrypt($block, 'BF-ECB', $this->blowKey, OPENSSL_RAW_DATA|OPENSSL_NO_PADDING); } protected function xorBytes($str1, $str2) { $result = ''; for ($i = 0; $i < strlen($str1); $i++) { $result .= chr(ord($str1[$i]) ^ ord($str2[$i])); } return $result; } protected function encryptTwelve($string) { $result = openssl_encrypt($string, 'AES-128-CBC', $this->aesKey, OPENSSL_RAW_DATA, $this->aesIv); return strtoupper(bin2hex($result)); } public function decrypt($string) { $result = FALSE; switch ($this->version) { case 11: $result = $this->decryptEleven($string); break; case 12: $result = $this->decryptTwelve($string); break; default: break; } return $result; } protected function decryptEleven($upperString) { $string = hex2bin(strtolower($upperString)); $round = intval(floor(strlen($string) / 8)); $leftLength = strlen($string) % 8; $result = ''; $currentVector = $this->blowIv; for ($i = 0; $i < $round; $i++) { $encryptedBlock = substr($string, 8 * $i, 8); $temp = $this->xorBytes($this->decryptBlock($encryptedBlock), $currentVector); $currentVector = $this->xorBytes($currentVector, $encryptedBlock); $result .= $temp; } if ($leftLength) { $currentVector = $this->encryptBlock($currentVector); $result .= $this->xorBytes(substr($string, 8 * $i, $leftLength), $currentVector); } return $result; } protected function decryptTwelve($upperString) { $string = hex2bin(strtolower($upperString)); return openssl_decrypt($string, 'AES-128-CBC', $this->aesKey, OPENSSL_RAW_DATA, $this->aesIv); }}; //需要指定版本两种，11或12//$navicatPassword = new NavicatPassword(11);//这里我指定的12的版本，原先指定的11，执行之后的密码是乱码$navicatPassword = new NavicatPassword(12); //解密//$decode = $navicatPassword->decrypt('15057D7BA390');$decode = $navicatPassword->decrypt('AE137B98AB3AD0F913EBEF2E8D3C52E9');echo $decode."n";?> 点击执行，右边运行得到密码。
方法2：可以使用python 代码。
navicat 加密方式
# -*- coding: utf-8 -*-from Crypto.Cipher import AESfrom binascii import b2a_hex, a2b_hex# 如果text不足16位的倍数就用空格补足为16位def add_to_16(text): if len(text.encode('utf-8')) % 16: add = 16 - (len(text.encode('utf-8')) % 16) else: add = 0 text = text + ('0' * add) return text.encode('utf-8')# 加密函数def encrypt(text): key = 'libcckeylibcckey'.encode('utf-8') mode = AES.MODE_CBC iv = b'libcciv libcciv ' text = add_to_16(text) cryptos = AES.new(key, mode, iv) cipher_text = cryptos.encrypt(text) print(b2a_hex(cipher_text)) # 因为AES加密后的字符串不一定是ascii字符集的，输出保存可能存在问题，所以这里转为16进制字符串 return b2a_hex(cipher_text)# 解密后，去掉补足的空格用strip() 去掉def decrypt(text): key = 'libcckeylibcckey'.encode('utf-8') iv = b'libcciv libcciv ' mode = AES.MODE_CBC cryptos = AES.new(key, mode, iv) plain_text = cryptos.decrypt(a2b_hex(text)) return bytes.decode(plain_text).rstrip('0').replace('','')if __name__ == '__main__': # e=encrypt('root') d = decrypt('AE137B98AB3AD0F913EBEF2E8D3C52E9') # 解密 # print("加密:",e) print("解密:", d) 解密: hzjy&flzx3qcProcess finished with exit code 0
