fernet library

A Dart library for encrypting and decrypting messages using the Fernet scheme.

Fernet guarantees that a message encrypted using it cannot be manipulated or read without the key. Fernet is an implementation of symmetric (also known as "secret key") authenticated cryptography. Fernet also has support for implementing key rotation via MultiFernet.

Classes

Fernet

This class provides both encryption and decryption facilities.

MultiFernet

This class implements key rotation for Fernet. It takes a List of Fernet instances and implements the same API with the exception of one additional method: MultiFernet.rotate

Mixins

ByteUtils

Utility methods for converting between integer and big endian bytes.

CryptoUtils

Utility methods for cryptographic algorithms AES-CBC and HMAC-SHA256.

Exceptions / Errors

InvalidToken

See Fernet.decrypt for more information.