1.In each multicasting session, there are three kinds of members in AAMS: Sender sending data, ACK Client receiving data and ACK Agent.
AAMS基于多目广播会话，是一个由Sender、ACK Agent（简称AA）和ACK Client（简称AC）三种成员组成的系统，具有树状结构、层次化和分布式的特点。
2.And SSR, Secret Shared-based Rerouting algorithm, is also proposed for the sender and the last hop on the rerouting path to share secret key, which enable the sender establish a secure channel to the last hop, therefore end-to-end encrypt the transferring messages in the next hop rerouting, increase the complexity of predecessor attacks. Second, the scalability of P2P anonymous communication system was studied in a more rigid way.
更进一步地,基于Shamir的秘密共享思想,提出一种新的下一跳路由算法——基于秘密共享的重路由算法(Secret Shared-based Rerouting,SSR),使发送者能够在无须指定路由的情况下,与最后一跳中继共享接收者地址和密钥,实现端到端的加密,从而有效增大恶意成员的攻击难度。
3.Electronic signature can identify the identity of the message sender and the credibility and integrality of the electronic data, and it is unique for each sender and each sent message.
法律规范对之加以调整，主要表现在对符合签名基本功能的电子签名技术予以认定，从而确立其法律效力，这实际上是对技术标准的认定，具有较强的客观性。
4.The ac tive routers in the tree implement the creation and maintenance of the active dy namic multicast tree,NACK suppression,NACK/ACK aggregation,datagram buffering,li mitation of the delivery of repair packets to the nodes experiencing loss,and ti mely detection and report of net congestion to allow the sender to adjust its se nding speed.
LARMP采用一个由四级主动路由器支持的主动组播树结构 ,利用组播树中的主动路由器实现动态主动组播树的建立和维护、NACK抑制、NACK/ACK聚合、缓存数据报文并为组播树中报文丢失节点恢复报文、及时检测网络拥塞并反馈给发送者以便其调整发送速度等功能 .
5.The parcel is returned to the sender because the directions is incorrect.
包裹因姓名地址有误而退给了寄件人。
6.In case of nondelivery, return to the sender.
如无法投递，则归还寄件人。
7.Not only did he receive the gift, he also severely criticized the sender.
他没有收下礼物，还狠狠批评了送礼的人。
8.a sender decoder
发报机译码器
9.In addition, he says, managers should look at the algorithms used with IPsec and provisions for message integrity and sender authentication.
此外，他还说，经理应该检查用于IPsec的算法以及提供消息完整性和发送者认证的措施。
10.And we used advanced Elliptic Curve Crypograph(ECC) to guarantee the secrecy, authentication, integrity an undeniability of sender and reciever of E-mail system.
该方案利用邮件客户端的各种功能Agent与认证中心CA端的管理Agent进行安全通信 ,并采用先进的椭圆曲线加密算法 ,实现了邮件系统的保密性、认证性、完整性以及收发双方的不可否认性。
