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正如子婴预料的那样，蓝、田的阻击刘邦的两场战斗都已失败告终。庞夫人立刻又开始吹嘘，我跟你讲，那房子可好，景致好，说是守海，其实就是望海，你住进去就是了。呵呵呵呵呵，竟然有人说‘玄铁重剑没有档次。Of course not. Every company employs IT experts. In fact, the IT industry has always been in short supply. Just look through the newspaper and read the reports about companies crying for IT personnel, and you will understand that this is indeed a seller's market.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.