Summery Summery
Opens a message encrypted via box_seal().
Syntax Syntax
Parameters Parameters
- $message
-
(Required)
- $keypair
-
(Required)
Return Return
(string)
Source Source
File: wp-includes/sodium_compat/src/Crypto32.php
public static function box_seal_open($message, $keypair) { /** @var string $ephemeralPK */ $ephemeralPK = ParagonIE_Sodium_Core32_Util::substr($message, 0, 32); /** @var string $ciphertext (ciphertext + MAC) */ $ciphertext = ParagonIE_Sodium_Core32_Util::substr($message, 32); /** @var string $secretKey */ $secretKey = self::box_secretkey($keypair); /** @var string $publicKey */ $publicKey = self::box_publickey($keypair); /** @var string $nonce */ $nonce = self::generichash( $ephemeralPK . $publicKey, '', 24 ); /** @var string $keypair */ $keypair = self::box_keypair_from_secretkey_and_publickey($secretKey, $ephemeralPK); /** @var string $m */ $m = self::box_open($ciphertext, $nonce, $keypair); try { ParagonIE_Sodium_Compat::memzero($secretKey); ParagonIE_Sodium_Compat::memzero($ephemeralPK); ParagonIE_Sodium_Compat::memzero($nonce); } catch (SodiumException $ex) { $secretKey = null; $ephemeralPK = null; $nonce = null; } return $m; }