中文摘要：

Yoon 和 Yoo 最近建议了一个柔韧的证实的加密计划并且宣称他们的计划有前面的秘密和机密的性质。然而，当前的纸指出那 Yoon-Yoo “ s 计划不能也提供前面的秘密和机密以便任何对手能容易恢复转移消息。基于颠倒单程的哈希函数和分离对数问题的难驾驭，有消息连接的一个改进证实的加密计划被建议。上述安全差错变得完美地解决了。新计划被证明满足证实的加密计划的所有基本安全要求。并且由具体比较，它有原来的计划的类似的效率。

英文摘要：

Yoon and Yoo recently proposed a robust authenticated encryption scheme and claimed their scheme has the properties of forward secrecy and confidentiality. The current paper, however, points out that Yoon-Yoo＇s scheme also can not provide forward secrecy and confidentiality such that any adversary can easily recover the transferred message. Based on intractability of reversing the one-way hash function and discrete logarithm problem, an improved authenticated encryption scheme with messages linkage is proposed. The above security faults get solved perfectly. The new scheme is proven to satisfy all the basic security requirements of the authenticated encryption scheme. And by the concrete comparison, it has the similar efficiency of the original scheme.