The Security of the Cipher Block Chaining Message Authentication Code
نویسندگان
چکیده
منابع مشابه
The Security of the Cipher Block Chaining Message Authentication Code
Let F be some block cipher (eg., DES) with block length l. The Cipher Block Chaining Message Authentication Code (CBC MAC) speci es that an m-block message x = x1 xm be authenticated among parties who share a secret key a for the block cipher by tagging x with a pre x of ym, where y0 = 0 l and yi = Fa(mi yi 1) for i = 1; 2; : : : ;m. This method is a pervasively used international and U.S. stan...
متن کاملOn the Security of Cipher Block Chaining Message Authentication Code
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-prepe...
متن کاملThe Security of Cipher Block Chaining
The Cipher Block Chaining { Message Authentication Code (CBC MAC) speciies that a message x = x 1 x m be authenticated among parties who share a secret key a by tagging x with a preex of f (m) a (x) def = f a (f a (f a (f a (x 1)x 2) x m?1)x m) ; where f is some underlying block cipher (eg. f = DES). This method is a pervasively used international and U.S. standard. We provide its rst formal ju...
متن کاملThe conventions for using the Advanced Encryption Standard-Counter with Cipher Block Chaining-Message Authentication Code (AES-CCM) and the AES-Galois/Counter Mode (GCM) authenticated encryption algorithms
This document describes an additional content type for the Cryptographic Message Syntax (CMS) [CMS]. The authenticatedenveloped-data content type is intended for use with authenticated encryption modes, where an arbitrary content is both authenticated and encrypted. Also, some associated data in the form of authenticated attributes can also be authenticated. All of the various key management te...
متن کاملThe conventions for using the Advanced Encryption Standard-Counter with Cipher Block Chaining-Message Authentication Code (AES-CCM) and the AES-Galois/Counter Mode (GCM) authenticated encryption algorithms
This document describes an additional content type for the Cryptographic Message Syntax (CMS) [CMS]. The authenticatedenveloped-data content type is intended for use with authenticated encryption modes, where an arbitrary content is both authenticated and encrypted. Also, some associated data in the form of authenticated attributes can also be authenticated. All of the various key management te...
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ژورنال
عنوان ژورنال: Journal of Computer and System Sciences
سال: 2000
ISSN: 0022-0000
DOI: 10.1006/jcss.1999.1694