1.Creates an instance of an implementation of a Hash-based Message Authentication Code (HMAC).
创建基于哈希的消息验证代码（HMAC）实现的实例。
2.HMAC is a message authentication code, I developed this procedure can be of arbitrary length message authentication.
hmac是一种消息验证码，我开发的这个程序可以进行任意长度的消息验证。
3.The cryptographic strength of HMAC depends on the properties of the underlying hash function.
HMAC的加密强度取决于基础哈希函数的属性。
4.Represents the abstract class from which all implementations of Hash-based Message Authentication Code (HMAC) must derive.
表示基于哈希的消息验证代码（HMAC）的所有实现必须从中派生的抽象类。
5.The sender computes the hash value for the original data and sends both the original data and the HMAC as a single message.
发送方计算原始数据的哈希值，并将原始数据和HMAC放在一个消息中传送。
6.HMAC for application in highway engineering has important practical significance.
对HMAC在公路工程中的应用具有重要的现实意义。
7.The receiver recalculates the hash value on the received message and checks that the computed HMAC matches the transmitted HMAC.
接收方重新计算所接收消息的哈希值，并检查计算所得的HMAC是否与传送的HMAC匹配。
8.The performance of HMAC with low-grade and high modulus asphalt aggregates and extra additives was study.
试验分析了高模量沥青混合料的路用和力学特性；
9.Initializes an instance of the default implementation of HMAC.
初始化默认HMAC实现的实例。
10.However, the HMAC values it produces are inconsistent with the output of the. NET Framework 2. 0 Implementation of the class.
但是，它生成的HMAC值与此类的.NETFramework2.0实现的输出不一致。