fpoirotte\Cryptal\Modes\CCM Class Reference

Inheritance diagram for fpoirotte\Cryptal\Modes\CCM:

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

Protected Member Functions
	checkum ($M, $A)
	incrementCounter ($c)
	Increment the value of the counter by one.

Protected Attributes
	$cipher
	Cipher.
	$L
	Length parameter.
	$M
	Output tag length.
	$nonce
	Nonce.

Detailed Description

Counter with CBC-MAC (CCM)

Definition at line 11 of file CCM.php.

Constructor & Destructor Documentation

fpoirotte\Cryptal\Modes\CCM::__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 25 of file CCM.php.

References fpoirotte\Cryptal\Modes\CCM\$cipher, fpoirotte\Cryptal\Modes\CCM\$L, fpoirotte\Cryptal\Modes\CCM\$M, and fpoirotte\Cryptal\Implementers\CryptoInterface\getBlockSize().

Member Function Documentation

fpoirotte\Cryptal\Modes\CCM::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 122 of file CCM.php.

References fpoirotte\Cryptal\Modes\CCM\$nonce, and fpoirotte\Cryptal\Modes\CCM\incrementCounter().

fpoirotte\Cryptal\Modes\CCM::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 104 of file CCM.php.

References fpoirotte\Cryptal\Modes\CCM\$nonce, and fpoirotte\Cryptal\Modes\CCM\incrementCounter().

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

• src/Cryptal/Modes/CCM.php