- text (str): The input text to encode or decode. - shift (int): The number of positions to shift letters by. - mode (str): Determines whether to "encode" (shift forward) or "decode" (shift backward).

Another Look at “Provable Security” - Inquiries into formalism and naive intuition behind security proofs, by Neal Koblitz et al. The security impact of a new cryptographic library - Introducory paper ...

Abstract: Due to the increasing threats from possible large-scale quantum computers, post-quantum cryptography (PQC) has drawn significant attention from various communities recently. In particular, ...