OCB: a block-cipher mode of operation for efficient authenticated encryption
CCS '01 Proceedings of the 8th ACM conference on Computer and Communications Security
Improving the Upper Bound on the Maximum Average Linear Hull Probability for Rijndael
SAC '01 Revised Papers from the 8th Annual International Workshop on Selected Areas in Cryptography
Bucket Hashing and its Application to Fast Message Authentication
CRYPTO '95 Proceedings of the 15th Annual International Cryptology Conference on Advances in Cryptology
New Method for Upper Bounding the Maximum Average Linear Hull Probability for SPNs
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
Authenticated Encryption: Relations among Notions and Analysis of the Generic Composition Paradigm
ASIACRYPT '00 Proceedings of the 6th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
On the Security of Rijndael-Like Structures against Differential and Linear Cryptanalysis
ASIACRYPT '02 Proceedings of the 8th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
New Structure of Block Ciphers with Provable Security against Differential and Linear Cryptanalysis
Proceedings of the Third International Workshop on Fast Software Encryption
Provable Security against Differential and Linear Cryptanalysis for the SPN Structure
FSE '00 Proceedings of the 7th International Workshop on Fast Software Encryption
Fast Encryption and Authentication: XCBC Encryption and XECB Authentication Modes
FSE '01 Revised Papers from the 8th International Workshop on Fast Software Encryption
Encryption Modes with Almost Free Message Integrity
EUROCRYPT '01 Proceedings of the International Conference on the Theory and Application of Cryptographic Techniques: Advances in Cryptology
A New Attack on the LEX Stream Cipher
ASIACRYPT '08 Proceedings of the 14th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
The design of a stream cipher LEX
SAC'06 Proceedings of the 13th international conference on Selected areas in cryptography
On efficient message authentication via block cipher design techniques
ASIACRYPT'07 Proceedings of the Advances in Crypotology 13th international conference on Theory and application of cryptology and information security
A new MAC construction alred and a specific instance ALPHA-MAC
FSE'05 Proceedings of the 12th international conference on Fast Software Encryption
Provably secure MACs from differentially-uniform permutations and AES-Based implementations
FSE'06 Proceedings of the 13th international conference on Fast Software Encryption
Resynchronization attacks on WG and LEX
FSE'06 Proceedings of the 13th international conference on Fast Software Encryption
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The goal of the modes of operation for authenticated encryption is to achieve faster encryption and message authentication by performing both the encryption and the message authentication in a single pass as opposed to the traditional encrypt-then-mac approach, which requires two passes. Unfortunately, the use of a block cipher as a building block limits the performance of the authenticated encryption schemes to at most one message block per block cipher evaluation. In this paper, we propose the authenticated encryption scheme ASC-1 (Authenticating Stream Cipher One). Similarly to LEX, ASC-1 uses leak extraction from different AES rounds to compute the key material that is XOR-ed with the message to compute the ciphertext. Unlike LEX, the ASC-1 operates in a CFB fashion to compute an authentication tag over the encrypted message. We argue that ASC-1 is secure by reducing its (IND-CCA , INT-CTXT) security to the problem of distinguishing the case when the round keys are uniformly random from the case when the round keys are generated by a key scheduling algorithm.