CCMBlockCipher class
Implementation of the CCM block cipher mode. CCM is authenticated, meaning that you can pass AEAD data (and that appending a MAC of the ciphertext is unnecessary).
Constructors
- CCMBlockCipher(BlockCipher underlyingCipher)
Properties
- aad ↔ Uint8List?
-
The additional authenticated data as set by the initialization
getter/setter pair
- algorithmName → String
-
Get this algorithm's standard name.
no setteroverride
- associatedText ↔ BytesBuilder
-
getter/setter pair
- blockSize → int
-
Get this ciphers's block size.
no setterinherited
- data ↔ BytesBuilder
-
getter/setter pair
- forEncryption → bool
-
True if initialized for encryption
no setter
- hashCode → int
-
The hash code for this object.
no setterinherited
- mac → Uint8List
-
The value of the authentication tag associated with the last processed
data
no setter
- macSize ↔ int
-
The length in bytes of the authentication tag
getter/setter pair
- nonce ↔ Uint8List
-
The nonce or iv as set by the initialization
getter/setter pair
- remainingInput → Uint8List
-
Any remaining input yet to be processed
no setter
- runtimeType → Type
-
A representation of the runtime type of the object.
no setterinherited
- underlyingCipher → BlockCipher
-
The underlying cipher
no setterinherited
Methods
-
doFinal(
Uint8List out, int outOff) → int -
Finish the operation either appending or verifying the MAC at the end of
the data.
override
-
getOutputSize(
int length) → int -
init(
bool forEncryption, covariant CipherParameters params) → void -
Init the cipher with its initialization
params. The type of CipherParameters depends on the algorithm being used (see the documentation of each implementation to find out more). -
noSuchMethod(
Invocation invocation) → dynamic -
Invoked when a nonexistent method or property is accessed.
inherited
-
prepare(
KeyParameter keyParam) → void - Prepare for a stream of data. This method is called during initialization and reset.
-
process(
Uint8List data) → Uint8List -
Process a whole block of blockSize bytes stored in
dataat once, returning the result in a byte array.inherited -
processAADBytes(
Uint8List inp, int inpOff, int len) → void - Processes the additional authentication data
-
processBlock(
Uint8List inp, int inpOff, Uint8List out, int outOff) → int -
Process a whole block of data given by
inpand starting at offsetinpOff.override -
processBytes(
Uint8List inp, int inpOff, int len, Uint8List out, int outOff) → int -
Process
lenbytes frominpstarting at offsetinpOffand output the result tooutat offsetoutOff. -
reset(
) → void - Reset the cipher to its original state.
-
toString(
) → String -
A string representation of this object.
inherited
-
validateMac(
) → void -
When decrypting, validates the generated authentication tag with the one
in the input stream. When not equal throws InvalidCipherTextException.
This method should be called from the doFinal method.
inherited
Operators
-
operator ==(
Object other) → bool -
The equality operator.
inherited
Static Properties
- factoryConfig → FactoryConfig
-
final