【摘要】 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。更多还原

【Abstract】 This paper proposes a message forgery attack on PMAC mode by using the property of differential equivalent of local operation mode. It shows that PMAC mode is vulnerable to the new message forgery attack, where new message and corresponding MAC code can be forged successfully. Compared with the previously works, it shows that the new forgery attack is more flexible and effective, and the collision condition is much looser.更多还原