Should return exactly 6 elements.
| public static unpackMessageForDecryption ( string $ciphertext ) : array | ||
| $ciphertext | string | |
| return | array | |
/**
* @covers Symmetric::unpackMessageForDecryption()
*/
public function testUnpack()
{
$key = new EncryptionKey(new HiddenString(\str_repeat('A', 32)));
// Randomly sized plaintext
$size = \Sodium\randombytes_uniform(1023) + 1;
$plaintext = \Sodium\randombytes_buf($size);
$message = Symmetric::encrypt(new HiddenString($plaintext), $key, true);
// Let's unpack our message
$unpacked = Symmetric::unpackMessageForDecryption($message);
// Now to test our expected results!
$this->assertSame(Util::safeStrlen($unpacked[0]), Halite::VERSION_TAG_LEN);
$this->assertTrue($unpacked[1] instanceof \ParagonIE\Halite\Symmetric\Config);
$config = $unpacked[1];
if ($config instanceof \ParagonIE\Halite\Symmetric\Config) {
$this->assertSame(Util::safeStrlen($unpacked[2]), $config->HKDF_SALT_LEN);
$this->assertSame(Util::safeStrlen($unpacked[3]), \Sodium\CRYPTO_STREAM_NONCEBYTES);
$this->assertSame(Util::safeStrlen($unpacked[4]), Util::safeStrlen($message) - (Halite::VERSION_TAG_LEN + $config->HKDF_SALT_LEN + \Sodium\CRYPTO_STREAM_NONCEBYTES + $config->MAC_SIZE));
$this->assertSame(Util::safeStrlen($unpacked[5]), $config->MAC_SIZE);
} else {
$this->fail('Cannot continue');
}
}
