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OCB mode was designed to provide both message authentication and privacy. It is essentially a scheme for integrating a message authentication code (MAC) into the operation of a block cipher. In this way, OCB mode avoids the need to use two systems: a MAC for authentication and encryption for confidentiality. This results in lower computational ...
A number of modes of operation have been designed to combine secrecy and authentication in a single cryptographic primitive. Examples of such modes are , [12] integrity-aware cipher block chaining (IACBC) [clarification needed], integrity-aware parallelizable mode (IAPM), [13] OCB, EAX, CWC, CCM, and GCM.
Authenticated encryption is also built from block ciphers. It means to both encrypt and MAC at the same time. That is to both provide confidentiality and authentication. CCM, EAX, GCM, and OCB are such authenticated encryption modes.
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CCM mode (counter with cipher block chaining message authentication code; counter with CBC-MAC) is a mode of operation for cryptographic block ciphers.It is an authenticated encryption algorithm designed to provide both authentication and confidentiality.
OCB XTS AES-Wrap Stream EAX; Botan: No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Bouncy Castle: Yes Yes Yes Yes Yes Yes Yes Yes No Yes Yes Yes BSAFE: Yes Yes Yes Yes
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Advanced Encryption Standard (AES) Symmetric block cipher for information protection FIPS PUB 197: Use 256-bit keys for all classification levels. Module-Lattice-Based Key-Encapsulation Mechanism Standard (ML-KEM aka CRYSTALS-Kyber) Asymmetric algorithm for key establishment FIPS PUB 203: Use ML-KEM-1024 parameter set for all classification levels.