fpoirotte\Cryptal\Modes\GCM Class Reference

Inheritance diagram for fpoirotte\Cryptal\Modes\GCM:

Public Member Functions
	__construct (CryptoInterface $cipher, $iv, $tagLength)
	decrypt ($data, $context)
	encrypt ($data, $context)

Protected Member Functions
	gctr ($ICB, $X)
	ghash ($X)
	padIv ()

Static Protected Member Functions
static	inc ($X, $n)

Protected Attributes
	$cipher
	Approved block cipher with a 128-bit block size.
	$iv
	Initialization Vector.
	$key
	Secret key.
	$table
	Pre-computation table for GF(2**128)
	$taglen
	Output tag length (in bytes)

Detailed Description

Galois-counter mode

Definition at line 11 of file GCM.php.

Constructor & Destructor Documentation

fpoirotte\Cryptal\Modes\GCM::__construct	(	CryptoInterface	$impl,
			$iv,
			$tagLength
	)

Construct an encryption/decryption mode of operations.

Parameters

CryptoInterface	$impl	Cryptographic implementation.
string	$iv	Initialization Vector for the cipher.
int	$tagLength	Length (in bytes) of the tags to generate (AEAD only).

Implements fpoirotte\Cryptal\SymmetricModeInterface.

Definition at line 28 of file GCM.php.

References fpoirotte\Cryptal\Modes\GCM\$cipher, fpoirotte\Cryptal\Modes\GCM\$iv, fpoirotte\Cryptal\Implementers\CryptoInterface\encrypt(), and fpoirotte\Cryptal\Implementers\CryptoInterface\getBlockSize().

Member Function Documentation

fpoirotte\Cryptal\Modes\GCM::decrypt	(		$data,
			$context
	)

Decrypt some data.

Parameters

string	$data	Data to decrypt.
resource	$context	Stream context for the operation.

Implements fpoirotte\Cryptal\AsymmetricModeInterface.

Definition at line 181 of file GCM.php.

fpoirotte\Cryptal\Modes\GCM::encrypt	(		$data,
			$context
	)

Encrypt some data.

Parameters

string	$data	Data to encrypt.
resource	$context	Stream context for the operation.

Implements fpoirotte\Cryptal\SymmetricModeInterface.

Definition at line 157 of file GCM.php.

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The documentation for this class was generated from the following file:

• src/Cryptal/Modes/GCM.php