EncryptionUtil class

A utility class for AES-256 encryption and decryption.

Constructors

EncryptionUtil(String base64Key, String base64Iv)

Creates an EncryptionUtil with the provided base64 encoded key and IV.

Properties

hashCode → int

The hash code for this object.

no setter, inherited

iv → IV

The initialization vector (must be 16 bytes).

final

key → Key

The encryption key (must be 32 bytes for AES-256).

final

runtimeType → Type

A representation of the runtime type of the object.

no setter, inherited

Methods

decryptToJson(String base64) → dynamic

Decrypts a base64 string back to a JSON object.

decryptToString(String base64) → String

Decrypts a base64 string back to a plain string.

encryptJson(dynamic obj) → String

Encrypts a JSON-serializable object.

encryptString(String plainText) → String

Encrypts a simple string.

noSuchMethod(Invocation invocation) → dynamic

Invoked when a nonexistent method or property is accessed.

inherited

toString() → String

A string representation of this object.

inherited

Operators

operator ==(Object other) → bool

The equality operator.

inherited

Static Properties

instance → EncryptionUtil

Default instance using a fixed key for easy demo purposes.

final

Static Methods

decrypt(String base64) → String

Alias for decryptToString using the default instance.

encrypt(String plainText) → String

Alias for encryptString using the default instance.

randomBase64Iv() → String

Generates a random 16-byte base64 encoded IV.

randomBase64Key() → String

Generates a random 32-byte base64 encoded key.