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In order to use SYN? Cookies to calculate the SYN-ACK serial number (that is, SYN? Cookies), the host must first combine some local password bits, a data structure including IP address and TCP port number, SYN initial sequence number, and some index data identifying the password bits. An MD5 digest is generated on top of all the above bytes, and then some bits are truncated from the hash value to put it into the SYN-ACK sequence number. Since the size of the sequence number is about a quarter of the total hash value, this truncation is necessary, but usually at least 3 bytes of hash bits are used for verification, which means that there are still nearly 2 24 possibilities to guess and verify cookies without knowing the password bits. In order to send out the hash value, some bits of cookies will reduce the upper limit value of MSS (Maximum Segment Length) contained in SYN and affect the index bits that identify the native password bits in the hash value.成功偷得孩子后，一连串发生的事情，使人字拖及八达通改变了自己的人生观念。人字拖开始关心家人，八达通也看到了自己老婆（蔡卓妍 饰）的不易，开始重新做人。 在包租公及黑势利的威胁下，他们还是要把偷来的BB交出来，到底又会发生些什么事，故事有会否大团圆结局呢？该剧根据耳东兔子的同名小说改编，讲述了优越不羁的校园男神周斯越（陈哲远 饰）与倔强可爱的灰姑娘丁羡（徐梦洁 饰），二人从互相排斥的同桌，在日复一日的相处生活中逐渐发现对方的优点，陪伴彼此度过青春路上的低谷与迷茫，最终彼此成就蜕变的美好青春故事。CBS一口气宣布续订6部正剧，包括《#反恐特警组# S.W.A.T.》第3季。Article 2 These Provisions shall apply to engaging in social fire-fighting technical service activities within the territory of the People's Republic of China and implementing qualification licensing, supervision and administration of fire-fighting technical service institutions.NO! The longer the code, the more classifiers need to be trained, and the higher the calculation and storage overhead. On the other hand, for a limited number of classes, the number of possible combinations is limited, and when the code length exceeds a certain range, it loses its meaning.