NewFilter creates CryptFilter from a corresponding dictionary.

NewFilterAESV2 creates an AES-based filter with a 128 bit key (AESV2).

NewFilterAESV3 creates an AES-based filter with a 256 bit key (AESV3).

NewFilterV2 creates a RC4-based filter with a specified key length (in bytes).

NewIdentity creates an identity filter that bypasses all data without changes.

FilterDict represents information from a CryptFilter dictionary.

Filter is a common interface for crypt filter methods.