Authenticated Encryption Mode for Beyond the Birthday Bound Security
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چکیده
منابع مشابه
Counter-in-Tweak: Authenticated Encryption Modes for Tweakable Block Ciphers
We propose the Synthetic Counter-in-Tweak (SCT) mode, which turns a tweakable block cipher into a nonce-based authenticated encryption scheme (with associated data). The SCT mode combines in a SIV-like manner a Wegman-Carter MAC inspired from PMAC for the authentication part and a new counter-like mode for the encryption part, with the unusual property that the counter is applied on the tweak i...
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COPA is a block-cipher-based authenticated encryption mode with a provable birthday-bound security under the assumption that the underlying block cipher is a strong pseudorandom permutation, and its instantiation with the AES block cipher is called AES-COPA. Marble is an AES-based COPA-like authenticated encryption algorithm with a full security. In this paper, we analyse the security of COPA a...
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In this paper, we define and analyze a new blockcipher mode of operation for encryption, CENC, which stands for Cipher-based ENCryption. CENC has the following advantages: (1) beyond the birthday bound security, (2) security proofs with the standard PRP assumption, (3) highly efficient, (4) single blockcipher key, (5) fully parallelizable, (6) allows precomputation of keystream, and (7) allows ...
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