On the Security of Cipher Block Chaining Message Authentication Code
نویسندگان
چکیده
In [4], Bernstein presented a simple proof of security of Cipher Block Chaining (CBC) Message Authentication Code (MAC) against adversaries querying messages all of which are of the same length. In this paper we show that Bernstein’s proof can be used to prove security of CBC MAC against adversaries querying non-empty messages that are not prefixes of each other. This implies that “length-prepend CBC MAC” presented by Bellare, Kilian, and Rogaway in [1] is a secure authentication method, handling variable message lengths.
منابع مشابه
AES-CCM Cipher Suites for Transport Layer Security (TLS)
This memo describes the use of the Advanced Encryption Standard (AES) in the Counter with Cipher Block Chaining Message Authentication Code (CBC-MAC) Mode (CCM) of operation within Transport Layer Security (TLS) and Datagram TLS (DTLS) to provide confidentiality and data origin authentication. The AES-CCM algorithm is amenable to compact implementations, making it suitable for constrained envir...
متن کامل1 6 O ct 2 00 3 A HASH OF HASH FUNCTIONS
In this paper, we present a general review of hash functions in a cryptographic sense. We give special emphasis on some particular topics such as cipher block chaining message authentication code (CBC MAC) and its variants. This paper also broadens the information given in [1], by including more details on block-cipher based hash functions and security of different hash schemes.
متن کاملA Hash of Hash Functions
In this paper, we present a general review of hash functions in a cryptographic sense. We give special emphasis on some particular topics such as cipher block chaining message authentication code (CBC MAC) and its variants. This paper also broadens the information given in [1], by including more details on block-cipher based hash functions and security of different hash schemes.
متن کاملReport on the Second Modes of Operation Workshop (August 2001)
Morris Dworkin, a mathematician from NIST’s Computer Security Division, served as the moderator of the workshop. He welcomed the attendees and introduced the other participants from NIST: Bill Burr, Elaine Barker, Aaron Nelson, and, at the registration table, Vickie Harris and Teresa Vicente. He reviewed the three current Federal Information Processing Standards (FIPS) that establish block ciph...
متن کاملReport on the Second Modes of Operation Workshop [August 2001]
Morris Dworkin, a mathematician from NIST’s Computer Security Division, served as the moderator of the workshop. He welcomed the attendees and introduced the other participants from NIST: Bill Burr, Elaine Barker, Aaron Nelson, and, at the registration table, Vickie Harris and Teresa Vicente. He reviewed the three current Federal Information Processing Standards (FIPS) that establish block ciph...
متن کامل