diff options
Diffstat (limited to 'apps/files_encryption/lib/crypt.php')
| -rwxr-xr-x | apps/files_encryption/lib/crypt.php | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/apps/files_encryption/lib/crypt.php b/apps/files_encryption/lib/crypt.php index ddeb3590f60..8c96e536415 100755 --- a/apps/files_encryption/lib/crypt.php +++ b/apps/files_encryption/lib/crypt.php @@ -352,6 +352,34 @@ class Crypt { }
/**
+ * @brief Decrypt private key and check if the result is a valid keyfile
+ * @param string $encryptedKey encrypted keyfile
+ * @param string $passphrase to decrypt keyfile
+ * @returns encrypted private key or false
+ *
+ * This function decrypts a file
+ */
+ public static function decryptPrivateKey($encryptedKey, $passphrase) {
+
+ $plainKey = self::symmetricDecryptFileContent($encryptedKey, $passphrase);
+
+ // check if this a valid private key
+ $res = openssl_pkey_get_private($plainKey);
+ if(is_resource($res)) {
+ $sslInfo = openssl_pkey_get_details($res);
+ if(!isset($sslInfo['key'])) {
+ $plainKey = false;
+ }
+ } else {
+ $plainKey = false;
+ }
+
+ return $plainKey;
+
+ }
+
+
+ /**
* @brief Creates symmetric keyfile content using a generated key
* @param string $plainContent content to be encrypted
* @returns array keys: key, encrypted
|