AES class

Represents an Advanced Encryption Standard (AES) block cipher.

The AES class implements the BlockCipher interface and provides methods for encryption and decryption of data using the AES algorithm. It supports key lengths of 128, 192, and 256 bits.

Key Schedule:

• The key schedule is computed during key initialization using the _lib AES library.

Block Size:

• AES operates on 128-bit blocks of data.

Key Initialization:

• To initialize the cipher with a key, use the setKey method.

Encryption and Decryption:

• Use the encryptBlock method to encrypt a 128-bit block of data.
• Use the decryptBlock method to decrypt a 128-bit block of data (if the instance allows decryption).

Memory Cleanup:

• The clean method can be used to securely zero and release the internal key schedule data.

Note: This class should be used with caution, as it operates directly on byte arrays and requires proper key management and memory cleanup to ensure security.

Implemented types

• BlockCipher

Implementers

• ECB

Constructors

AES(List<int> key, [bool noDecryption = false])

Creates an AES cipher instance with the given encryption key.

Properties

blockSize → int

Block size for AES cipher

final

hashCode → int

The hash code for this object.

no setter, inherited

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

clean() → AES

Clears and releases internal key schedule data for security and memory management.

override

decryptBlock(List<int> src, [List<int>? dst]) → List<int>

This method takes a source block of ciphertext, decrypts it using the decryption key schedule, and returns the resulting plaintext. Optionally, you can provide a destination block (dst) to write the decrypted data into. If not provided, a new List

override

encryptBlock(List<int> src, [List<int>? dst]) → List<int>

This method takes a source block of plaintext, encrypts it using the encryption key schedule, and returns the resulting ciphertext. Optionally, you can provide a destination block (dst) to write the encrypted data into. If not provided, a new List

override

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

setKey(List<int> key, [bool noDecryption = false]) → AES

Initializes the AES cipher with the provided encryption key.

override

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited