搜索结果: 1-6 共查到“密码学 PMAC”相关记录6条 . 查询时间(0.076 秒)
PMAC is a simple and parallel block-cipher mode of operation, which was introduced by Black and Rogaway at Eurocrypt 2002. If instantiated with a (pseudo)random permutation over n-bit strings, PMAC co...
Revisiting Full-PRF-Secure PMAC and Using It for Beyond-Birthday Authenticated Encryption
message authentication codes authenticated encryption provable security
2016/12/29
This paper proposes an authenticated encryption scheme, called SIVx, that preserves BBB security also in the case of unlimited nonce reuses. For this purpose, we propose a single-key BBB-secure messag...
On the Influence of Message Length in PMAC's Security Bounds
unforgeability integrity verification
2016/2/24
Many MAC (Message Authentication Code) algorithms have
security bounds which degrade linearly with the message length. Often
there are attacks that confirm the linear dependence on the message
leng...
PMAC模式的消息伪造攻击
分组密码 消息认证码 PMAC模式
2009/11/26
针对PMAC工作模式，利用模式局部差分恒等原理，给出一种消息伪造攻击方法，指出新攻击下PMAC工作模式是脆弱的。利用该方法可以成功地进行消息和其MAC的伪造。与已有的攻击方法相比，该新攻击所需的碰撞条件更为宽松，并使得实施攻击更为灵活、有效。
Improved Security Analysis of PMAC
MAC PMAC Distinguishing attack pseudo random function random permutation
2008/9/18
Our new bound is better than both original and recently proposed bound and guarantees much more security of PMAC. We also have provided a complete, independent and
simple combinatorial proof. This pr...
An improved collision probability for CBC-MAC and PMAC
MAC CBC-MAC PMAC Distinguishing attack
2008/9/18
In this paper we compute the coliision probability of CBC-MAC [3] for suitably chosen
messages. We show that the probability is (`q2=N) where ` is the number of message block, N
is the size of ...