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Before performing an SSL data transfer, Both sides of the communication must first shake hands with SSL, The encryption algorithm has been negotiated to exchange the encryption key, Perform identity authentication, Normally, This SSl handshake process only needs to be performed once, But there is a Regegotiation option in the SSL protocol, It allows renegotiation of the secret key to create a new key, The attacker repeatedly carries out the key renegotiation process, and the key renegotiation process requires the server to invest 15 times more CPU computing resources than the client. In addition, even if the server does not support Renegotiation, the attacker can still create similar attack effects by opening a new SSL connection separately.何晓晴从小在社会福利机构帮工，成年后因偶然的意外进入到中外合作的高等教育学校读书，晓晴努力学习的同时也不忘在课程结束之后打工赚钱，不让父母操心。在过程中，她遇到了令她心动的男孩毕湛朗，也结识了毕希文，东方昱等好友。…,这个消息对于这几日来缺少主心骨的越军将领而言，无疑是一剂最好的强心剂。整个南洋东海的舰队都在他的监视之下，如此的情报优势，让他可以一万人当十万人用。For the collected components starting with target and ending at the root node, two in this example. It is used for capture and bubbling of subsequent simulated events.苏樱看向花无缺。